نتایج جستجو برای: لاستیک epdm

تعداد نتایج: 1498  

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...

ژورنال: :فصلنامه علمی- ترویجی بسپارش 2012
علی سیبویه سعید احمدجو سید محمد مهدی مرتضوی

کاتالیزور­های متالوسن به علت کومونومر پذیری زیاد نسبت به کاتالیزور­های زیگلر ناتا برتری دارند، تحلیل مناسب پارامترهای تاثیرپذیر از شرایط پلیمریزشدن بر محصول نهایی بسیاراهمیت دارد. در این مقاله پارامترهای هزینه، کیفیت، محصول دهی و زمان پخت توسط متخصصان معین و با استفاده از روش ahp وزن دهی شده اند سپس 16 محصول نهایی توسط روش topsis رتبه بندی گردید که پلیمر a10 بدست آمده در نسبت خوراک 67/33 و دمای...

Journal: :Polymer Engineering and Science 2021

Temperature scanning stress relaxation (TSSR) measurement of peroxide vulcanized polymer blends polypropylene (PP) and ultrahigh molecular-EPDM (UHM-EPDM) rubber has been performed to study the thermomechanical behavior thermoplastic vulcanizates (TPVs). Co-agents play crucial roles in enhancement properties TPVs. Different types co-agents (Triallyl cyanurate-TAC; N, N-m-phenylene-dimaleimide-H...

Journal: :High voltage 2021

To study the effect of nano-silica particles on conductivity characteristics ethylene propylene diene monomer (EPDM) insulation, EPDM nanocomposites with different mass fractions nano silica were prepared via melt-blending method. Scanning electron microscopy was used to analyze dispersion nanoparticles in EPDM. Based Fourier-transform infrared spectrum, bonding properties between and analyzed....

Journal: :Research, Society and Development 2021

Neste trabalho, a poliamida 6 (PA6) foi tenacificada com o terpolímero de acrilonitrila-EPDM-estireno (AES), utilizando etileno-propileno-dieno enxertado anidrido maleico (EPDM-MA), como agente compatibilizante. As blendas foram preparadas em uma extrusora rosca dupla corrotacional e, posteriormente, moldadas por injeção. propriedades resistência ao impacto, à tração e morfologia avaliadas. Os ...

Journal: Polyolefins Journal 2016

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: :Journal of physics 2023

Abstract The performance change of Ethylene propylene diene monomer (EPDM) was studied by the accelerated aging experimental method, and its lifespan predicted. results showed that thermal oxidation EPDM is dominated crosslinking reaction. With extension time, total density tensile permanent deformation gradually decrease, while strength hardness increase gradually. life prediction formula unde...

Journal: :Journal of applied research and technology 2022

This study was to develop a radiation sterilized polypropylene/ethylene-propylene diene monomer (PP/EPDM) binary blends using melt blending and the mechanical properties of were studied. The PP/EPDM prepared in ratios 80:20, 60:40, 50:50, 40:60 20:80. then compressed for 12 minutes Hot Cold Press machine cut into 1mm, 3mm 6mm thickness tensile test, impact hardness test Fourier Transform Infrar...

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