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Journal articles on the topic 'Organic resin'

Author: Grafiati

Published: 4 June 2021

Last updated: 13 February 2022

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1

Biswas, Kinkar, Sujit Ghosh, and Basudeb Basu. "Ion-exchange Resins and Polypeptide Supported Catalysts: A Critical Review." Current Green Chemistry 7, no. 1 (2020): 40–52. http://dx.doi.org/10.2174/2213346107666200204125435.

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Heterogeneous catalysis represents one of the important areas in the field of organic synthesis. Major developments have been emerged during last few decades and polymer-supported catalysts have been employed successfully in various catalytic organic transformations. Ion-exchange resins and polypeptides are two important examples of such heterogeneous polymer-supported catalysts among others because of their easy accessibility, stability, recoverability and reusability. Cross-linked ion-exchange resins and polypeptides are highly insoluble, which make them better choice in terms of their easy

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2

Mazidji, C. N., B. Koopman, and G. Bitton. "Chelating Resin versus Ion-Exchange Resin for Heavy Metal Removal in Toxicity Fractionation." Water Science and Technology 26, no. 1-2 (1992): 189–96. http://dx.doi.org/10.2166/wst.1992.0399.

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A chelating resin (Chelex 50-100) and ion-exchange resin (Dowex 50W-X8) were evaluated for removal of heavy metals in toxicity fractionation. Microtox and β-galactosidase activity were employed as toxicity endpoints. The resins were packed into 4 raL glass Pasteur pipettes for use. Chelating resin provided complete removal of toxicity due to polyvalent heavy metal cations (Cd, Cu, Hg, Pb, Zn). Ion-exchange resin was ineffective in removing mercury toxicity. Neither resin provided complete removal of Ag+ toxicity. Toxicity of organic compounds was, at most, partially removed. Performance of the

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3

Al-Fatimi, Mohamed. "β-Caryophyllene: A Single Volatile Component of n-Hexane Extract of Dracaena cinnabari Resin". Molecules 25, № 21 (2020): 4939. http://dx.doi.org/10.3390/molecules25214939.

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The pure Soqotri resin of Dracaena cinnabari Balf.f. (Dracaenaceae) has no volatile smell due to its low content of volatile constituents. Although it is insoluble in n-Hexane, we found that the resin, when suspended in n-Hexane within five days at 5 °C, led to the extraction of a small portion of a single volatile liquid constituent, which was identified by GC-MS as sesquiterpene β-caryophyllene. This method of extracting the volatile constituents using hexane under cooling is very suitable for resins of the Dracaena species because these resins usually contain very few volatile terpenes and/

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4

Lizymol, P. P. "Physical and Mechanical Properties of Visible Light Cure Composites Based on Novel Organically Modified Ceramic Resins." Advanced Materials Research 685 (April 2013): 50–53. http://dx.doi.org/10.4028/www.scientific.net/amr.685.50.

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Replacement of damaged tooth is necessary for proper functioning and better aesthetics. Polymeric composites based on organic resins are the most popular materials used for restoration of damaged tooth though they have many problems like polymerization shrinkage. The post gel polymerization shrinkage causes significant stresses in the surrounding tooth structure and composite tooth bonding leading to premature restoration failure. Other problems such as uncured organic monomers leaching from the dental composites into the surrounding gum tissue have been reported to cause cytotoxic effects, pu

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Echigo, S., S. Itoh, and M. Kuwahara. "Bromide removal by hydrotalcite-like compounds in a continuous system." Water Science and Technology 56, no. 11 (2007): 117–22. http://dx.doi.org/10.2166/wst.2007.817.

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Bromide ion removal from a real water matrix by hydrortalcite-like compounds (HTCs) was attempted in a column reactor to control the formation of brominated disinfection by-products in drinking water treatment process. The performance of HTCs was found to be comparable to a commercially available ion exchange resin for relatively low alkalinity water. Also, it was deduced that HTCs are better than ion exchange resins for high sulfate water because of their unique ion selectivity. In addition, the ion exchange reactions by HTCs were faster than a commercially available resin. Thus, HTCs are exp

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6

Doederer, K., Z. Ilieva, and J. Keller. "Impact of a severe rain event on C- and N-DBP precursor removal using IEX." Water Supply 18, no. 6 (2018): 2092–99. http://dx.doi.org/10.2166/ws.2018.033.

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Abstract During disinfection, dissolved organic matter (DOM) is the major precursor to form disinfection by-products (DBPs), which may be of potential human health concern. Previous research focused on waters of continental climates and less on subtropical environments. However, water sources in subtropical climates are regularly impacted by major rain events during the summer months. This study evaluated the C- and N-DBP precursor removal capacity of two conventional ion exchange (IEX) resins and one magnetic ion exchange (MIEX) resin with a raw water at normal conditions and impacted by a he

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7

Ortiz, Pablo, Richard Vendamme, and Walter Eevers. "Fully Biobased Epoxy Resins from Fatty Acids and Lignin." Molecules 25, no. 5 (2020): 1158. http://dx.doi.org/10.3390/molecules25051158.

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The use of renewable resources for plastic production is an imperious need for the reduction of the carbon footprint and the transition towards a circular economy. With that goal in mind, fully biobased epoxy resins have been designed and prepared by combining epoxidized linseed oil, lignin, and a biobased diamine derived from fatty acid dimers. The aromatic structures in lignin provide hardness and strength to an otherwise flexible and breakable epoxy resin. The curing of the system was investigated by infrared spectroscopy and differential scanning calorimetry (DSC). The influence of the dif

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8

Verdickt, L., W. Closset, V. D'Haeseleer, and J. Cromphout. "Applicability of ion exchange for NOM removal from a sulfate-rich surface water incorporating full reuse of the brine." Water Supply 12, no. 6 (2012): 878–87. http://dx.doi.org/10.2166/ws.2012.065.

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The raw water of water treatment works ‘the Blankaart’ (Belgium) is characterized by high levels of NOM (Natural Organic Matter), alkalinity and sulfate. From 2006 until present, the possibility of applying fluidized ion exchange for NOM removal has been investigated at the plant. Pilot testing using Miex® (Magnetic Ion Exchange) resin demonstrated that under standard operating conditions, a TOC (Total Organic Carbon) removal efficiency of 40 to 50% can be achieved. Moreover, jar tests demonstrated that the application of ion exchange as a pretreatment for enhanced coagulation would allow the

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9

Voytik, Alexey, Georgiy V. Malkov, Artur T. Kapasharov, and Alexey Yu Kostin. "Organic Aerogels Based on Epoxy Resins: Synthesis and Properties." Key Engineering Materials 869 (October 2020): 240–45. http://dx.doi.org/10.4028/www.scientific.net/kem.869.240.

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The aim of this work was to develop methods for the synthesis of organic aerogels based on epoxy resins and to investigate their properties. Aerogels based on DGEBA-epoxy resin were obtained by CO2-supercritical drying of gel samples prepared from acetone solutions of epoxy resin with different amount of catalyst and solvents. As a result, aerogels of different density were obtained; the dependence of density on the solvent content in the samples was revealed. The aerogels were characterized by infrared spectroscopy to define the degree of conversion of the epoxy groups, by SEM to confirm nano

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10

Yang, Jie, Xin Mao, Lirong Du, et al. "Thermally stabilized bismaleimide–triazine resin composites for 10-GHz level high-frequency application." High Performance Polymers 30, no. 7 (2017): 833–39. http://dx.doi.org/10.1177/0954008317732396.

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A hybrid cured resin with excellent dielectric and thermal properties was prepared with bismaleimide–triazine (BT) resin modified with 2,2′-diallylbisphenol A (DBA). The thermal and dielectric properties of the resin were investigated, and the effect of DBA concentration on the curing reaction was determined. Results indicated that DBA significantly influenced the curing reaction and the properties of the cured product. The modified BT resins exhibited outstanding thermal stability (initial decomposition temperature was over 400°C), although the stability was slightly lower than that of pure B

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11

Lu, Hao, Yaqiang Dong, Xincai Liu, et al. "Enhanced Magnetic Properties of FeSiAl Soft Magnetic Composites Prepared by Utilizing PSA as Resin Insulating Layer." Polymers 13, no. 9 (2021): 1350. http://dx.doi.org/10.3390/polym13091350.

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Thermosetting organic resins are widely applied as insulating coatings for soft magnetic powder cores (SMPCs) because of their high electrical resistivity. However, their poor thermal stability and thermal decomposition lead to a decrease in electrical resistivity, thus limiting the annealing temperature of SMPCs. The large amount of internal stress generated by soft magnetic composites during pressing must be mitigated at high temperatures; therefore, it is especially important to find organic resins with excellent thermal stabilities. In this study, we prepared SMPCs using poly-silicon-conta

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12

Drikas, M., J. Y. Morran, C. Pelekani, C. Hepplewhite, and D. B. Bursill. "Removal of natural organic matter - a fresh approach." Water Supply 2, no. 1 (2002): 71–79. http://dx.doi.org/10.2166/ws.2002.0009.

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Natural organic matter (NOM) has been shown to be one of the major parameters that affects water quality and treatment processes. NOM reduces the effectiveness of water treatment by interfering with the flocculation process, makes treatment with activated carbon and membrane filtration less efficient and is a precursor to the formation of disinfectant by-products (DBP). Furthermore, NOM acts as a food source for micro-organisms resulting in bacterial regrowth in distribution systems. These concerns have resulted in the removal of NOM from raw water being of prime concern for water authorities.

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13

Ayrilmis, Nadir, and Günay Özbay. "TECHNOLOGICAL PROPERTIES OF PLYWOOD BONDED WITH PHENOL-FORMALDEHYDE RESOL RESIN SYNTHESIZED WITH BIO-OIL." CERNE 23, no. 4 (2017): 493–500. http://dx.doi.org/10.1590/01047760201723042351.

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ABSTRACT In this study, it was aimed to use of bio-oil as an alternative to petroleum-based phenol in the production of phenol-formaldehyde (PF) resin used for making exterior plywood.Bio-oil obtained from pine wood sawdust using a vacuum pyrolysis reactor at 500 °C. The PF resol resins were produced by substituting up to 20 wt% of phenol with bio-oil by modifying the chemical synthesis process. FT-IRanalysis was performed to characterizethe organic functional groups in the bio-oil modified PF resins. In comparison to the commercial and lab-made PF resins, the bio-oil modified PF resins were f

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14

Kızılcan, Nilgun, and Selda Sert. "Novel environmentally friendly tannin-cyclohexanone formaldehyde resin for high performance applications." Pigment & Resin Technology 49, no. 2 (2019): 96–101. http://dx.doi.org/10.1108/prt-08-2019-0071.

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Purpose Cyclohexanone-formaldehyde resin (CFR) was in situ modified with tannin (T) in the presence of sodium hydroxide. The purpose of this study is to produce eco-friendly tannin-modified cyclohexanone resins (TCFR) with a one-step method that has higher decomposition temperature than CFR. The solubility, molecular weight and thermal properties of the product were investigated. Design/methodology/approach Cyclohexanone, formalin (37 per cent aqueous solution) and tannin were mixed and 20 per cent aqueous NaOH solution was added to produce the resin. Tannin has environmentally friendly bio-ba

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15

Sanclimens, Glòria, Laia Crespo, Miquel Pons, Ernest Giralt, Fernando Albericio, and Miriam Royo. "Saturated resins or stress of the resin." Tetrahedron Letters 44, no. 9 (2003): 1751–54. http://dx.doi.org/10.1016/s0040-4039(03)00109-6.

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16

Liu, Xin, Jianming Wang, Changxin Zhou, and Lishe Gan. "Preparative Separation and Enrichment of Syringopicroside fromFolium syringaeLeaves with Macroporous Resins." Journal of Biomedicine and Biotechnology 2010 (2010): 1–10. http://dx.doi.org/10.1155/2010/572570.

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Syringopicroside is the major constituent inFolium syringaeleaves with known pharmacological activities. In this study, a simple method for preparative separation of syringopicroside fromF. syringaeleaves with macroporous resins was developed. Adsorption characteristics of syringopicroside on six types of macroporous resins, including ADS-8, ADS-17, D141, NKA-9, HPD450, and HPD600, have been compared, among which D141 resin showed the best adsorption and desorption capacities for syringopicroside. Adsorption isotherms were used to D141 resin at different temperatures and fitted well to Langmui

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17

Chihai, R., C. Ungureanu, A. Cojan, I. G. Bîrsan, and A. Cîrciumaru. "Organic modified epoxy resin. Tribologic aspects." Proccedings of International Scientific Conference "BALTTRIB 2019" 1 (2019): 7–13. http://dx.doi.org/10.15544/balttrib.2019.03.

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18

Zhu, Bizhong, Yuhong Wu, Herschel H. Reese, Dimitris E. Katsoulis, and Frederick J. McGarry. "Silicone-Organic Resin Hybrid Matrix Composites." Macromolecular Materials and Engineering 291, no. 9 (2006): 1052–60. http://dx.doi.org/10.1002/mame.200600042.

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19

NAKAZATO, Junichi, Kazuo ITOH, and Sadao WAKUMOTO. "Light Activated Resin Containing Organic Dyestuff." Dental Materials Journal 8, no. 2 (1989): 147–54. http://dx.doi.org/10.4012/dmj.8.147.

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20

Cui, Yu Qing, and Zhong Wei Yin. "Carbon-fibre-reinforced modified cyanate ester winding composites and their thermomechanical properties." High Performance Polymers 31, no. 2 (2018): 154–67. http://dx.doi.org/10.1177/0954008317753526.

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Although the extensive research has expanded on the modification of cyanate ester (CE) resins and the mechanical properties of CE composites, very few studies have been conducted on carbon fibre (CF)/modified CE winding composites and the thermomechanical properties of the composites. In this research, epoxy (EP)-modified novolac cyanate ester (NCE) and bismaleimide (BMI)-modified NCE resins were prepared. The CF/modified CE winding composites were manufactured, and their thermomechanical properties were tested. The optimal winding process was determined, and a preheating technique was impleme

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21

Mergen, M. R. D., B. J. Adams, G. M. Vero, et al. "Characterisation of natural organic matter (NOM) removed by magnetic ion exchange resin (MIEX® Resin)." Water Supply 9, no. 2 (2009): 199–205. http://dx.doi.org/10.2166/ws.2009.301.

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The aim of the research presented in this paper was to gain greater insight into the characteristics of NOM removed by MIEX® Resin. Previous studies have shown that MIEX® Resin increases the level of removable DOC when used in combination with coagulation, suggesting that these two processes target a different type of organics. Initially the characteristics of DOC in regenerant solutions from four different MIEX® Resin treatment plants were analysed and compared to DOC in the respective raw water. Following this the raw water and the regenerant solutions were coagulated and the characteristics

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22

Janabi, Mustafa, Catherine M. Pollock, Ann-Marie Chacko, and Duncan H. Hunter. "Resin-supported arylstannanes as precursors for radiolabeling with iodine: benzaldehydes, benzoic acids, benzamides, and NHS esters." Canadian Journal of Chemistry 93, no. 2 (2015): 207–17. http://dx.doi.org/10.1139/cjc-2014-0265.

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A highly cross-linked polystyrene resin bearing a reactive chlorostannane moiety 1 has been used to generate a variety of arylstannane radiopharmaceutical precursors for no-carrier-added radioiodination. The resins were characterized for their solvent compatibility and sensitivity to acid cleavage. Resin-supported arylstannanes synthesized via their aryllithium analogues include 3- and 4-stannylbenzaldehydes, 3- and 4-stannylbenzoic acids, and 3- and 4-N-succinimidyl benzoates. A three-step route to the resin-supported stannylbenzoic acids 12a/b was developed through resin-supported benzaldehy

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23

Biziks, Vladimirs, Marco Fleckenstein, Carsten Mai, and Holger Militz. "Suitability of a lignin-derived mono-phenol mimic to replace phenol in phenol-formaldehyde resin for use in wood treatment." Holzforschung 74, no. 4 (2020): 344–50. http://dx.doi.org/10.1515/hf-2019-0061.

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AbstractThe goal of this study was to assess the suitability of a single mono-aromatic for substitution of petroleum-based phenol for phenol-formaldehyde (PF) resin synthesis and the usage of a new resin for wood treatment. After proper thermal decomposition of wood-based lignin, pyrolysis oil can be obtained. Due to the heterogeneity of the lignin macromolecule, oil contains large variety of organic-based compounds, mainly mono-aromatics, which are proposed to be used for replacement of phenol during PF resin synthesis. Therefore, for this purpose, nine of the most abundant mono-aromatic comp

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Huang, Xi, Zhenxiong Ye, Lifeng Chen, et al. "Removal of V(V) From Solution Using a Silica-Supported Primary Amine Resin: Batch Studies, Experimental Analysis, and Mathematical Modeling." Molecules 25, no. 6 (2020): 1448. http://dx.doi.org/10.3390/molecules25061448.

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Every year, a large quantity of vanadium-containing wastewater is discharged from industrial factories, resulting in severe environmental problems. In particular, V(V) is recognized as a potentially hazardous contaminant due to its high mobility and toxicity, and it has received considerable attention. In this study, a silica-supported primary amine resin (SiPAR) was prepared by in-situ polymerization, and the V(V) adsorption from the solution was examined. The as-prepared resin exhibited fast adsorption kinetics, and it could attain an equilibrium within 90 min for the V(V) solution concentra

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Zhou, Xue, Lunhui Xiang, Fenghong Wu, et al. "Comparison of extracts and toxicities of organic compounds in drinking water concentrated by single and composite XAD resins." Journal of Water and Health 11, no. 4 (2013): 692–99. http://dx.doi.org/10.2166/wh.2013.035.

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We compared extracts and toxicities of organic compounds (OCs) in drinking water concentrated by composite XAD-2/8 resin (mixed with an equal volume of XAD-2 and XAD-8 resins) with those extracted by single XAD-2 (non-polar) and XAD-8 (polar) resins. Drinking water was processed from raw water of the Han River and the Yangtze River in Wuhan section, China. The extraction efficiency of all resins was controlled at 30%. The types of extracted OCs were detected by gas chromatography–mass spectrometry, and the cytotoxicity and genotoxicity were assessed by MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-dip

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Ramkisson, Shaveer, Yahaya E. Jad, Anamika Sharma, Beatriz G. de la Torre, and Fernando Albericio. "OctaGel Resin - A New PEG-PS-based Solid Support for Solid-Phase Peptide Synthesis." Letters in Organic Chemistry 16, no. 12 (2019): 935–40. http://dx.doi.org/10.2174/1570178616666190913153605.

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: OctaGel resin is a unique, highly uniformed surface-active resin. Here, we compared the performance of OctaGel with that of known resins on the market, namely polystyrene and ChemMatrix, in Solid-Phase Peptide Synthesis. The synthesis of the ‘difficult’ Aib-ACP (65-74) decapeptide showed that OctaGel has the potential to yield molecules with satisfactory purity. Given its high swelling capacity and large bead size, OctaGel also shows efficient interaction with various solvents, including those mainly used for SPPS (DMF and DCM).

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Mira, Helena, Patricia Leite, Jorge Manuel Ricardo-da-Silva, and António Sérgio Curvelo-Garcia. "Use of ion exchange resins for tartrate wine stabilization." OENO One 40, no. 4 (2006): 223. http://dx.doi.org/10.20870/oeno-one.2006.40.4.865.

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<p style="text-align: justify;">The application of the cation exchange and double cation-anion exchange resins, regarding the wine tartrate stabilization, without previous treatment of wine by cold has been studied as well as their influence in phenolic, mineral and organic acid composition. The R1 resin was used in Mg2+, Na+ and H+ form, the R2 resin was always used in H+ form, and the R3 was used in OH- form. The eluted wine was assembled with untreated wine to obtain stable wine. The R2 resin showed to be more efficient to enhance the tartrate stabilization than R1 in Mg2+ form; howev

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Solórzano Kraemer, Mónica M., Xavier Delclòs, Matthew E. Clapham, et al. "Arthropods in modern resins reveal if amber accurately recorded forest arthropod communities." Proceedings of the National Academy of Sciences 115, no. 26 (2018): 6739–44. http://dx.doi.org/10.1073/pnas.1802138115.

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Amber is an organic multicompound derivative from the polymerization of resin of diverse higher plants. Compared with other modes of fossil preservation, amber records the anatomy of and ecological interactions between ancient soft-bodied organisms with exceptional fidelity. However, it is currently suggested that ambers do not accurately record the composition of arthropod forest paleocommunities, due to crucial taphonomic biases. We evaluated the effects of taphonomic processes on arthropod entrapment by resin from the plantHymenaea, one of the most important resin-producing trees and a prod

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Koyama, Tohru, Katuo Sugawara, Chikasi Kanno, Syouichi Maruyama, and Yoshikiyo Kashiwamura. "High-performance heat resistant insulation materials for coils." High Performance Polymers 7, no. 3 (1995): 325–36. http://dx.doi.org/10.1088/0954-0083/7/3/009.

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A new impregnating epoxide resin has been developed by optimizing cross-linking densities. The resin satisfies the thermal index of 210C: this is the first time an epoxide system without a heterocyclic ring has done so. Thermal class 220C insulating systems of traction motor coils are developed by interaction of the impregnating epoxide resin and epoxide binding resin in a new insulating tape. The newly developed epoxide impregnating resin has low viscosity and very good workability. Therefore, electrically insulated coils of various classes of heat resistance, such as class C (> 180C), cla

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Karagiannidis, Emmanouil, Charles Markessini, and Eleftheria Athanassiadou. "Micro-Fibrillated Cellulose in Adhesive Systems for the Production of Wood-Based Panels." Molecules 25, no. 20 (2020): 4846. http://dx.doi.org/10.3390/molecules25204846.

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Micro-Fibrillated Cellulose (MFC) is a new type of bio-based additive, coming from wood cellulose. It can compete and substitute oil derived chemicals in several application fields. In the present work, the use of micro-fibrillated cellulose, in waterborne adhesive systems applied in the manufacture of composite wood-based panels was evaluated. Research was conducted to test the potential of improving the performance of wood-based panel types such as particleboard, waferboard or randomly-oriented strand board and plywood, by the application of MFC and the substitution of conventional and non-r

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Urbanowska, Agnieszka, and Małgorzata Kabsch-Korbutowicz. "Ion exchange with macroporous polystyrene resins for the removal of natural organic matter." Water Quality Research Journal 53, no. 4 (2018): 191–204. http://dx.doi.org/10.2166/wqrj.2018.002.

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Abstract Due to the regulations on drinking water quality becoming stricter, it is important to remove natural organic matter (NOM) from water. The ion exchange process that uses synthetic resins is among the many processes that allow it. The suitability of two macroporous polystyrene resins: A100 and BD400FD for the removal of NOM from water and also the integrated process combining ion exchange with ultrafiltration were evaluated. The impact of process set-up and selected water parameters on the treatment effectiveness was compared. XAD resin fractionation was used to characterize removed NO

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Ning, Yi, Yichi Chen, Mingcun Wang, Kaiyun Zhou, Tao Su, and Zhiqiang Wang. "Calixarene–based cyanate ester resin for high-temperature material." High Performance Polymers 31, no. 3 (2018): 359–66. http://dx.doi.org/10.1177/0954008318772870.

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p-tert-Butylcalix[4]arene-derived cyanate ester resins, both single and binary systems, were synthesized and studied for their thermal properties. The results showed that pure calixarene cyanate ester can be thermally cured at comparatively high temperature, which remains in original powder state after thermally cured. So the pure calixarene cyanate ester resin fails to meet the processing demands of resin-matrixed composite. In this work, p-tert-butylcalix[4]arene cyanate ester was chemically functionalized to have highly decreased thermal cure temperature (by copolymerization with epoxy, bis

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Álvarez Feijoo, Miguel Ángel, María Elena Arce Fariña, Andrés Suárez-García, David González-Peña, and Montserrat Díez-Mediavilla. "Compounds with Epoxy Resins and Phase Change Materials for Storage in Solar Applications." Materials 12, no. 21 (2019): 3522. http://dx.doi.org/10.3390/ma12213522.

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Composite materials have great potential for growth due to their excellent properties and their multiple applications. The study of the thermal properties of the new composites resulting from the combination of epoxy resin and phase change materials (PCM), as well as thickening agents and thermally conductive compounds, was the objective of this work. For this purpose, different samples were manufactured by combining epoxy resins, organic PCMs (paraffins), and aluminum particles. Several properties were analyzed: thermal behavior (by differential scanning calorimetry technique), hardness, etc.

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Xiao, Ling, Yanhua Sun, Chunhua Ding, Lihua Yang, and Lie Yu. "Annealing effects on magnetic properties and strength of organic-silicon epoxy resin-coated soft magnetic composites." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 228, no. 12 (2013): 2049–58. http://dx.doi.org/10.1177/0954406213515112.

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Soft magnetic composites (SMCs) can be described as soft magnetic powders covered by electrically insulating layers. In this work, iron powders with high purity and organic-silicon epoxy resin were chosen for good magnetic properties, thermal stability, and mechanical properties, respectively. The effect of amount of resin, different annealing temperatures on the microstructure, and performance of SMCs was investigated. Results show that organic-silicon epoxy resin has excellent properties as dielectric coating materials for coating iron powders and maximum heat-resistant temperature is about

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Tschirner, Sarah, Eric Weingart, Linda Teevs, and Ulf Prüße. "Catalytic Dehydration of Fructose to 5-Hydroxymethylfurfural (HMF) in Low-Boiling Solvent Hexafluoroisopropanol (HFIP)." Molecules 23, no. 8 (2018): 1866. http://dx.doi.org/10.3390/molecules23081866.

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A mixture of hexafluoroisopropanol (HFIP) and water was used as a new and unknown monophasic reaction solvent for fructose dehydration in order to produce HMF. HFIP is a low-boiling fluorous alcohol (b.p. 58 °C). Hence, HFIP can be recovered cost efficiently by distillation. Different ion-exchange resins were screened for the HFIP/water system in batch experiments. The best results were obtained for acidic macroporous ion-exchange resins, and high HMF yields up to 70% were achieved. The effects of various reaction conditions like initial fructose concentration, catalyst concentration, water co

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Su, Tao, Weiwei Men, Zhiqiang Wang, Lixin Xuan, and Weiwei Zhao. "POSS-benzocyclobutene (POSS-BCB) resin." High Performance Polymers 30, no. 9 (2017): 1123–29. http://dx.doi.org/10.1177/0954008317740194.

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Organic-inorganic hybrid materials with a high thermal stability and a low dielectric constant show great potential in the microelectronics industry. In this work, polyhedral oligomeric silsesquioxane-benzocyclobutenes (POSS-BCBs) were synthesized by a hydrosilylation reaction of octavinyloctasilasesquioxane (OVPOSS) and 4-(1,1-dimethyl-1-hydro)-silyl-benzocyclobutene with H2PtCl6 as a catalyst. The ring-opening reaction of BCB on POSS-BCBs resulted in POSS-BCB resins with a highly cross-linked network structure. This resin exhibited good thermal stability (T5% is 495°C in N2), low dielectric

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Kuntal, Vikas Singh, M. Chellapandian, S. Suriya Prakash, and Akanshu Sharma. "Experimental Study on the Effectiveness of Inorganic Bonding Materials for Near-Surface Mounting Shear Strengthening of Prestressed Concrete Beams." Fibers 8, no. 6 (2020): 40. http://dx.doi.org/10.3390/fib8060040.

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Use of organic resins such as epoxy and vinyl esters as bonding materials in fibre reinforced polymer (FRP) strengthening of concrete members is widely accepted. However, the performance of organic resins is compromised when exposed to high temperature and extreme weather conditions leading to reduced durability of the strengthened systems. The present study attempts to evaluate the effectiveness of inorganic (cement mortar and geopolymer mortar) bonding materials for shear strengthening of prestressed concrete (PSC) beams using the near-surface mounting (NSM) technique. Different types of bon

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Yang, Li, Miao Yin, Xiu Yun Li, and Han Bing Ma. "Thermal and Dielectric Properties of Inorganic-Organic Nanocomposites Involving Epoxy Resin and Polyhedral Oligomeric Silsesquioxanes." Advanced Materials Research 476-478 (February 2012): 665–69. http://dx.doi.org/10.4028/www.scientific.net/amr.476-478.665.

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In this paper, a type of nanoporous polyhedral oligomeric silisesquioxanes (POSS) containing eight functional groups have been synthesized and mixed with diglycidyl ether of bisphenol A (DGEBA) to form epoxy resin networks with nanostructures. The cured octa(aminophenyl) silsesquioxane (1c-POSS) and DGEBA system inherently possesses higher thermal stability and higher char yield than the control epoxy resins. Furthermore, the dielectric constant of the 1c-POSS/DGEBA material (4.36) is substantially lower than that of the neat epoxy resins (4.64) as a consequence the presence of nanoporous POSS

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Li, Xiaodan, Shikun Wu, Chunlei Kan, et al. "Application of Ion Exchange Resin in the Advanced Treatment of Condensate Water." E3S Web of Conferences 272 (2021): 01005. http://dx.doi.org/10.1051/e3sconf/202127201005.

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The advanced treatment of condensate water is important for efficient reuse of water resources, especially in confined space. In this work, a novel integrated process of ion exchange resins and activated carbon is proposed to remove various pollutants in condensate water. A fixed bed column of pre-treated basic anion exchange resin, acidic cation exchange resin, mixed ion exchange resins and modified activated carbon was applied to remove ionic pollutants, organic pollutants and adjust the pH value of output water. The effects of the types, amount ratios and the sequence of ion exchange resins

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40

Kubecki, M., M. Holtzer, and S. Żymankowska-Kumon. "Investigations of the Temperature Influence on Formation of Compounds from the BTEX Group During the Thermal Decomposition of Furan Resin / Badania wpływu temperatury na powstawanie związków z grupy BTEX podczas termicznego rozkładu żywicy furanowej." Archives of Foundry Engineering 13, no. 2 (2013): 85–90. http://dx.doi.org/10.2478/afe-2013-0042.

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Abstract Organic binders applied in foundry plants based on synthetic resins, from the one side influence obtaining the required technological properties by the moulding sand and - in consequence - obtaining good quality castings, and on the other side are the source of volatile organic compounds (VOC). Together with synthetic resins their hardeners, which although added in very small amounts emit during their thermal decomposition substances negatively influencing the natural environment, are also used. Both, resins and hardeners only at the influence of high temperatures accompanying moulds

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MOROTOMI, Naoaki. "Characteristics of Binder Resin for Organic Photoconductor." Kobunshi 48, no. 11 (1999): 858. http://dx.doi.org/10.1295/kobunshi.48.858.

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RUBAEK, G. H., and E. SIBBESEN. "Resin extraction of labile, soil organic phosphorus." Journal of Soil Science 44, no. 3 (1993): 467–78. http://dx.doi.org/10.1111/j.1365-2389.1993.tb00469.x.

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Yuan, Li, Xiao-Yan Ma, Guo-Zheng Liang, and Yun Huang. "Organic Rectorite-modified Unsaturated Polyester Resin Composites." Journal of Composite Materials 41, no. 9 (2006): 1051–65. http://dx.doi.org/10.1177/0021998306067274.

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Liu, Jun, Yao Li, Xu Ming Wang, and Run Qing Liu. "Organic Pretreatment of Recycled Aggregates of Rural Construction Waste." Applied Mechanics and Materials 161 (March 2012): 1–5. http://dx.doi.org/10.4028/www.scientific.net/amm.161.1.

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Through using acetic acid resin, asphalt and urea resin organic pretreatment methods to pretreat the surface of rural construction waste, and testing of crush index and water absorption rate of recycled coarse aggregate after pretreatment, the research for the influence of organic pretreatment technology on physical and mechanical performance of recycled coarse aggregate. The results prove that organic infiltrating pretreatment technology can effectively enhance the density of the coarse aggregate and decrease the crush of recycled coarse aggregate index, in a certain extent. The crush index o

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Geurtsen, W. "Biocompatibility of Resin-Modified Filling Materials." Critical Reviews in Oral Biology & Medicine 11, no. 3 (2000): 333–55. http://dx.doi.org/10.1177/10454411000110030401.

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Increasing numbers of resin-based dental restorations have been placed over the past decade. During this same period, the public interest in the local and especially systemic adverse effects caused by dental materials has increased significantly It has been found that each resin-based material releases several components into the oral environment. In particular, the comonomer triethyleneglycol di-methacrylate (TEGDMA), and the 'hydrophilic' monomer, 2-hydroxy-ethyl-methacrylate (HEMA), are leached out from various composite resins and 'adhesive' materials (e.g., resin-modified glass-ionomer ce

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Kim, Jung Gon, Kyoung Hoon Shin, Ho Seok Ryu, and Jae Wook Lee. "Monitoring the Change of Viscosity during Cure Reaction of Epoxy Resins with Resin Position Sensor." Journal of Reinforced Plastics and Composites 21, no. 2 (2002): 139–52. http://dx.doi.org/10.1177/0731684402021002353.

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It was required that the fundamental understanding of the resin’s rheological properties, such as viscosity, gel point and degree of cure are known during the processing of epoxy resin. In order to monitor these properties in-situ, a sensor system that can measure the viscosity changes during cure is needed. The resin position sensor (RPS) based on DC conductometry has been able to measure the ionic contents and electrical conductivity of most organic resins. Complex viscosity and electrical resistance were measured simultaneously during the cure of diglycidyl ether of bisphenol-A (DGEBA) epox

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Tang, Gong Wen, Zhi Shan Yan, and Xin Huang. "Preparation and Organic Solvent Resistance of Water Soluble Hydantoin Epoxy/Organic Titanium Chelate Composite Coatings." Materials Science Forum 852 (April 2016): 639–45. http://dx.doi.org/10.4028/www.scientific.net/msf.852.639.

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As worldwide environmental and ecological regulations become strict, water soluble system presents great potential in the new VOC-compliant, high-performance anticorrosive coating systems. In this study, hydantoin epoxy resin (HE) was first synthesized. Then HE/titanium bis (triethanolamine) diisopropoxide (TE) composite resin was obtained by mixing HE and TE at a certain temperature. The structure was characterized by 1H nuclear magnetic resonance (NMR) and fourier transform infrared spectroscopy (FTIR). The curing behavior and thermal stability were assessed with differential scanning calori

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Kajiwara, M. "Synthesis and properties of inorganic-organic resins with di-aminotetraorganocyclotriphosphazenes and epoxy resin." Journal of Materials Science Letters 13, no. 11 (1994): 842–45. http://dx.doi.org/10.1007/bf00271337.

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Ferreira, Danilo Augusto de Holanda, Carolina Patrícia Aires, Regina Célia Bressan Queiroz De Figueiredo, and Frederico Barbosa de Sousa. "High Amount of Organic Matter during Caries Formation Reduces Remineralization and Resin Infiltration of Enamel Caries." Caries Research 52, no. 6 (2018): 580–87. http://dx.doi.org/10.1159/000488211.

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The amount of organic material in the cariogenic environment correlates with the amount of organic material incorporated in carious enamel. The incorporated organic material may be expected to reduce the pore volumes available for remineralization and resin infiltration, but these expected outcomes have not yet been quantified. We tested the effect of the amount of organic content in the cariogenic agent on remineralization and the resin-occluded pore volume in artificial subsurface enamel caries. An acid gel (organic-rich; G1) and an aqueous solution (organic-poor; G2) were used to induce sub

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Li, Hongfeng, Jiyou Gu, Changwei Liu, Dezhi Wang, and Chunyan Qu. "Thermal and mechanical properties of cyanate ester resin modified with acid-treated multiwalled carbon nanotubes." High Performance Polymers 30, no. 1 (2016): 38–46. http://dx.doi.org/10.1177/0954008316675208.

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Multiwalled carbon nanotubes (MWCNTs) that were treated with mixed acids were used to reinforce the cyanate ester resin. Meanwhile, the relationship among structure, morphology, and property of the modified resin was investigated. The treated MWCNTs were characterized by Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis, and X-ray photoelectron spectroscopy (XPS). The XPS results showed that the oxygen content in the treated MWCNTs was higher than that of untreated MWCNTs and the FTIR results indicated the presence of oxygen-containing functional groups on the treated

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