نتایج جستجو برای: epdm

تعداد نتایج: 568  

Journal: :Molecules 2009
Fang Wang Juan Xu Heyi Luo Jinggang Wang Qian Wang

Practical adhesion of rubber to aluminum is measured for various aluminum silanization treatments. In this study, 6-(3-triethoxysilylpropylamino)-1,3,5-triazine-2,4-dithiol (TES) was used as the coupling agent for preparing self-assembly monolayers (SAMs) on an aluminum surface. The structure and chemical composition of the SAMs were analyzed using Fourier transform infra-red spectroscopy (FT-I...

2015
L. S. Nasrat A. A. Ibrahim

Polymeric insulators are widely used in newly constructed systems and to replace porcelain and glass insulators in existing power lines due to its improved performance. This paper presents an experimental work, which was carried to evaluate the flashover voltage (kV) of Silicone rubber / Ethylene propylene diene monoemer blends of outdoor insulators. Effect of environmental parameters at desert...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد شاهرود - دانشکده مهندسی شیمی 1393

در تحقیق حاضر آمیزه های pp/epdm با ترکیب درصد مختلف با استفاده از اکسترودر دو مارپیچ غیر همسوگرد در دمای اختلاط 190 درجه سلیسیوستهیه شده و اثر epdm بر مورفولوژی، خواص مکانیکی، پلی پروپیلن بررسی شد. در این مطالعات اثر ترکیب درصد epdm و نوع epdm، از نظر خطی و شاخه ای، تاثیر پخت دینامیکی و نیز درصد های مختلف از مواد پخت بر خواص مکانیکی آلیاژ epdm/pp بررسی شد.نمونه ها با درصد های مختلف از epdm خطی ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان - دانشکده مهندسی شیمی 1392

در این تحقیق از مونومر گلیسیدیل متاکریلات gma) ( که مونومری دو عاملی است برای اصلاح اتیلن-پروپیلن-دی ان رابر( epdm) ،جهت حل مشکل هم پختی و توزیع ناهمگن پرکننده،در آمیزه سه گانه nr/br/epdm به منظور کاربرد در دیواره تایر،و با هدف حذف کامل آنتی ازونانت،استفاده شده است. در این تحقیق ازلاستیک طبیعی اپوکسیدایز(enr )که هم به دلیل طبیعت قطبی حلقه های اپوکسید موجود در ساختارش می تواند با گروه های اپوکسی...

Journal: :Journal of physics 2023

Abstract Due to the excellent insulation performance, ethylene-propylene-diene monomer (EPDM) is used as cable accessories. To obtain EPDM materials with high dielectric breakdown strength (DBS), special polar molecules and chemistry grafting/crosslinking technique are in this paper. In paper, we choose Maleic anhydride (MAH) an additive introduce deep traps, which generates increase strength(D...

Journal: :Journal of composites and compounds 2021

Silicone rubber (SR) and ethylene-propylene-diene monomer (EPDM) are widely-used polymers as housing for high voltage insulators. In this work, SR/EPDM/clay nanocomposites were obtained by two-roll mill mixing outdoor polymeric Morphology, dielectric properties, breakdown strength (DBS), surface volume resistivity of different weight contents nanoclay (Cloisite 15A) incorporated in SR, EPDM, SR...

Ali Sibevei Mohammad Mahdi Mortazavi Saied Ahmadjo, Zahra Naji Azimi

This paper considers the problem of selecting the most appropriate ethylene propylene diene monomer (EPDM), which is a polyolefin with a variety of usages in different areas. The metallocene catalyst, bis(2-phenyl indenyl) zirconium dichloride ((2-PhInd)2ZrCl2) was synthesized by a modified method and applied to the terpolymerization of ethylene, propylene, and 5-ethylidiene-2-norbornene (ENB)....

Journal: :polyolefins journal 2015
fateme khademeh molavi sedigheh soltani ghasem naderi rohollah bagheri

a novel mixing approach for achieving a good dispersion of multi-walled carbon nanotubes (mwcnts) in ethylene- propylene diene monomer (epdm) matrix has been investigated. in this approach epdm was modified with vinyltrimethoxysilane (vtms) during melt mixing. in addition the effect of mwcnt concentration on mechanical and rheological properties of modified epdm has been studied. the formulated...

Journal: :Catalysts 2022

Ethylene-propylene-diene rubbers (EPDM) are one of the most important polyolefin materials widely commercialized and used in various industries recent years. The production EPDM is based solely on catalytic coordination polymerization processes. development new catalysts processes for synthesis has expanded range products their manufacturing terms energy efficiency, processability, environmenta...

Journal: :Polymer Bulletin 2023

Abstract Structure–properties relationship in complex rubber nanocomposites is a key for enlarging the performance window. Herein, halloysite nanotubes (HNTs) are added at variable content to ethylene-propylene diene monomer (EPDM)/nitrile butadiene (NBR) blends compatibilized with maleic anhydride grafted HNTs evaluate cure characteristics, along microstructure, and mechanical swelling behavio...

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