نتایج جستجو برای: treated epdm
تعداد نتایج: 461623 فیلتر نتایج به سال:
PP/EPDM Thermoplastic Vulcanizate (TPV) filled with carbon black (CB) has been prepared and the localization of filler in blend was observed to be dependent on crosslinking chemistry: rubber phase when EPDM crosslinked phenolic resin (resol) at interface dicumyl peroxide (DCP). It proved, based model reactions that mimicked what could happen during process high temperature, DCP led polymer chai...
In order to preserve structure and also achieve the desired thrust rocket motor, engine Case temperature should be prevented increase excess.This operation the can be done by Insulation. EPDM rubber because of advantages such as low specific weight, improve aging properties, as long as thermal insulation for solid propellant motors case bond Introduced and its properties are investigated in thi...
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...
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...
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 ...
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...
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...
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...
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)....
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