Academic literature on the topic 'Polypropylene expansé'

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Journal articles on the topic "Polypropylene expansé"

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Gulieva, T. M. "COPPER-CONTAINING NANOCOMPOSITES ON THE BASIS OF ISOTACTIC POLYPROPYLENE AND BUTADIENE-NITRILE RUBBER." Azerbaijan Chemical Journal, no. 3 (September 28, 2021): 38–43. http://dx.doi.org/10.32737/0005-2531-2021-3-38-43.

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The influence of additives of nanofillers containing nanoparticles of copper oxides stabilized by a polymer matrix of maleinized high-pressure polyethylene obtained by the mechano-chemical method on the structure and properties features of metal-containing nanocomposites based on isotactic polypropylene and butadiene-nitrile rubber by x-ray phase and differential thermal analyses is studied. The improvement of strength, deformation and rheological parameters, as well as thermal-oxidative stability of the obtained nanocomposites was revealed, that is probably due to the synergistic effect of in
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YANOV, V. V., L. I. GATAULLINA, and L. A. ZENITOVA. "HEVEA-PRODUCTS AND POLYPROPYLENE." Herald of Technological University 27, no. 11 (2024): 56–62. https://doi.org/10.55421/1998-7072_2024_27_11_56.

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The main source of natural rubber is hevea, a genus of evergreen monoecious rubber-bearing trees. Natural rubber belongs to biodegradable polymers and does not accumulate in nature. In this regard, it can be used as a biodegradable additive for polypropylene, which is not biodegradable. Most studies are devoted to the biodegradation of either purified natural rubber or tire samples made of purified natural rubber, but there are few publications on the biodegradation of unrefined natural rubber. During its purification, the protein-lipid layer contained on the surface of rubber globules is larg
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Mr.Pravin, Shankarsing Pardeshi*1 &. Dr. Sanjay Kulkarni2. "EFFECT OF POLYPROPYLENE ON SHEAR STRENGTH PARAMETERS." GLOBAL JOURNAL OF ENGINEERING SCIENCE AND RESEARCHES 5, no. 7 (2018): 452–57. https://doi.org/10.5281/zenodo.1323164.

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In this research the shear strength parameter of Highly cohesive soil is discussed. A Comparison of shear strength parameters and ultimate bearing capacity by direct shear test at various water content is calculated. Most of the engineering design methods and parameters of structure on soil have been developed for ideal soil, such as expansive clay which mostly deviates from the reality by atmospheric changes. Black Cotton soil is collected from Nadhenagarnear Kalewadi, Pune  which are one of the expands during the rainy seasons and shrinks during the summer seasons. In this paper the she
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Liu, Changkun, Jizhen Jia, Ji’an Liu, and Xiaoyan Liang. "Hg selective adsorption on polypropylene-based hollow fiber grafted with polyacrylamide." Adsorption Science & Technology 36, no. 1-2 (2017): 287–99. http://dx.doi.org/10.1177/0263617416689480.

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A novel polypropylene hollow fiber membrane with a new function of selective adsorption of mercury ions in aqueous solutions was successfully prepared. The surface of the polypropylene hollow fiber membrane was initially modified with polydopamine by surface polymerization, and subsequently grafted with polyacrylamide (PAM) polymer brush via the surface initiated atom transfer radical polymerization (SI-ATRP) technique (thereafter named as PP-PAM). This study investigated the adsorption performance of Hg(II) ions by PP-PAM and the effect of various influencing factors on Hg(II) ion adsorption.
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Potapova, Ekaterina, Ekaterina Dmitrieva, Aung Kyaw Nian, and Elena Tsvetkova. "Gypsum Composite Reinforced with Polymer Fibers." Key Engineering Materials 910 (February 15, 2022): 880–86. http://dx.doi.org/10.4028/p-dgyem5.

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Composite gypsum binders harden quickly, gain strength quickly and have positive environmental properties. Moreover, they are characterized by increased moisture resistance, which significantly expands the field of application of such gypsum materials. Dispersed reinforcement of composite gypsum binders with polypropylene fibers makes it possible to obtain composites characterized by high performance properties. On basis of developed compositions of gypsum-cement-pozzolanic and composite gypsum binders with polymer fibers, gypsum composites have been created, characterized by increased strengt
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Barczewski, Mateusz, Danuta Matykiewicz, Olga Mysiukiewicz, and Paweł Maciejewski. "Evaluation of polypropylene hybrid composites containing glass fiber and basalt powder." Journal of Polymer Engineering 38, no. 3 (2018): 281–89. http://dx.doi.org/10.1515/polyeng-2017-0019.

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AbstractPolypropylene composites filled with inorganic fillers are widely used due to their good mechanical and thermal properties. The modification efficiency of filler incorporated into thermoplastic polymer strongly depends on its shape and dimension. Therefore, the development of novel hybrid composites modified with particle and fibrous shaped fillers expands the range of thermoplastic composite applications. This work investigates the influence of glass fiber and basalt powder and their shape on the mechanical properties of polypropylene-based composites. Mechanical properties of hybrid
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Kurbanova, N. I., S. K. Ragimova, N. A. Alimirzoeva, N. Ya Ishenko, and V. V. Medyakov. "Composites based on isotactic polypropylene and high-pressure polyethylene with zink-containing nanofillers." Perspektivnye Materialy 11 (2021): 47–53. http://dx.doi.org/10.30791/1028-978x-2021-11-47-53.

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The effect of nanofiller (NF) additives containing zink oxide nanoparticles stabilized by a polymer matrix of high pressure polyethylene obtained by the mechanochemical method on the structure and properties of metal-containing nanocomposites based on isotactic polypropylene (PP) and high pressure polyethylene (PE) using differential thermal (DTA) and X-ray phase (XRF) analyzes. The improvement of strength, deformation and rheological parameters, as well as thermal-oxidative stability of the obtained nanocomposites was revealed, which, apparently, is associated with the synergistic effect of i
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Kurbanova, N. I., S. K. Ragimova, and T. M. Guliyeva. "Composites based on isotactic polypropylene and high pressure polyethylene with nichel-containing nanofillers." Perspektivnye Materialy 2 (2024): 51–57. http://dx.doi.org/10.30791/1028-978x-2024-2-51-57.

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The effect of nanofiller (NF) additives containing nickel oxide nanoparticles stabilized by a polymer matrix of high pressure polyethylene (PE) obtained by the mechanochemical method on the structure and properties of metal-containing nanocomposites based on isotactic polypropylene (PP) and high pressure polyethylene(PE) using differential thermal (DTA) and X-ray phase (XRF) and SEM analyzes. The improvement of strength, deformation and rheological parameters, as well as thermal-oxidative stability of the obtained nanocomposites was revealed, which, apparently, is associated with the synergist
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Kurbanova, N. I., T. M. Gulieva, and N. Ya Ischenko. "Properties of nanocomposites based on isotactic polypropylene and high-pressure polyethylene with metal-containing nanofillers." Perspektivnye Materialy, no. 9 (2020): 59–64. http://dx.doi.org/10.30791/1028-978x-2020-9-59-64.

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The effect of additives of nanofillers (NF) containing nanoparticles (NP) of copper oxide, stabilized by a polymer matrix of maleized polyethylene (MPE), obtained by the mechanochemical method, on the properties of composites based on isotactic polypropylene (PP) and high-pressure polyethylene (PE) was studied by X-ray phase (XRD) and thermogravimetric (TGA) analyzes. The enhancement of strength, deformation, and rheological parameters, as well as the thermo-oxidative stability of the obtained nanocomposites was revealed, which, apparently, is due to the synergistic effect of the interaction o
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Kurbanova, N. I., S. K. Ragimova, N. A. Alimirzoeva, and N. Ya Ishenko. "Copper-containing nanocomposites on the basis of isotactic polypropylene and butadiene-nitrile rubber." Perspektivnye Materialy 5 (2021): 76–81. http://dx.doi.org/10.30791/1028-978x-2021-5-76-81.

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The influence of additives of nanofillers (NF) containing nanoparticles of copper oxides stabilized by a polymer matrix of high-pressure polyethylene (PE) obtained by the mechanochemical method on the structure and properties features of metal-containing nanocomposites based on isotactic polypropylene (PP) and butadiene-nitrile rubber (BNK) is studied by X-ray phase (XRD) and differential thermal analyses(DTA). The improvement of strength, deformation and rheological parameters, as well as thermal-oxidative stability of the obtained nanocomposites was revealed, which, apparently, is associated
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Dissertations / Theses on the topic "Polypropylene expansé"

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Dilger, Melvin. "Flame retardant expanded polypropylene for applications in electric vehicles : design and mechanism of action." Electronic Thesis or Diss., Université de Lille (2022-....), 2023. http://www.theses.fr/2023ULILR066.

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Aujourd'hui, le secteur des transports est en pleine mutation avec la transition des véhicules thermiques vers les véhicules électriques. Par conséquent, les matériaux largement utilisés dans les véhicules, tels que le PPE, doivent également évoluer en raison d'exigences plus strictes en matière de propriétés ignifuges.Dans cette thèse, trois approches ont été envisagées pour améliorer les propriétés ignifuges du PPE et atteindre une classification V0 lors du test vertical UL-94, selon les trois différentes étapes de fabrication du PPE. Ces étapes sont : (1) le mélange du polypropylène (PP) av
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Conference papers on the topic "Polypropylene expansé"

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Fan, Digang, Ruixin Wu, Yimin Hu, and Xintao Li. "An Expand Polypropylene Based High-performance Electromagnetic Wave Absorber." In 2019 International Applied Computational Electromagnetics Society Symposium - China (ACES). IEEE, 2019. http://dx.doi.org/10.23919/aces48530.2019.9060712.

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Kurup, G. Surya Narayana, Sona P. S., Luthfa U, Varsha Manu, and Amal Azad Sahib. "Undrained Strength Characteristics of Fibre Reinforced Expansive Soils." In International Web Conference in Civil Engineering for a Sustainable Planet. AIJR Publisher, 2021. http://dx.doi.org/10.21467/proceedings.112.19.

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Expansive soils are those whose volume changes take place while it comes in contact with water. It expands during rainy season due to intake of water and shrinks during summer season. Expansive soils owe their characteristics due to the presence of swelling clay minerals. Expansive soils cover nearly 20% of landmass in India and include almost the entire Deccan plateau, western Madhya Pradesh, parts of Gujarat, Uttar Pradesh, Andhra Pradesh, Karnataka and Maharashtra. The properties that describe the expansive behaviour of soils are free swell index, swell potential and swell pressure. This be
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