کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6579338 | 1422932 | 2018 | 30 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Design of nano-starch-reinforced ethyl-co-vinyl acetate elastomers by simultaneously constructing interfacial bonding and novel reversible matrix crosslinking
ترجمه فارسی عنوان
طراحی الاستومرهای اتیل-وینیل استات تقویت شده توسط نانوذرات با ایجاد همزمان اتصال پیوندی و اتصال متقابل ماتریکس برگشت پذیر
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کلمات کلیدی
نشاسته نانو، اتیلن گلیسیدیل متاکریلات وینیل استات، تقویت، سازگاری،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
چکیده انگلیسی
In this work, starch is demonstrated as active filler to reinforce rubber matrixes significantly with non-traditional vulcanizing agents. Nano-sized starch particles (NSt) with a diameter of â¼130â¯nm were prepared via reversed-phase titration. Subsequently, rubber-grade ethylene-glycidyl methacrylate-vinyl acetate/NSt (GMA-EVM/NSt) nanocomposites were prepared using ethylene diamine (EDA) and 3-(2-aminoethylamino) propyl dimethoxy methyl silane (KH602) as a cross-link agent. The tensile strength (Ts) of the KH602-cured GMA-EVM was increased from 3.0 to 17.2â¯MPa when 15â¯phr (per hunderd rubber by weight) of NSt was incorporated, while the storage modulus (e.g., at â40â¯Â°C) was increased by 50%. Moreover, the GMA-EVM/NSt nanocomposites showed a strong increasing trend in strength with higher NSt loadings. Compared to EDA, the KH602 showed stronger reinforcing effect on the GMA-EVM/NSt nanocomposites due to a fine dispersion of NSt and chemical coupling at the interface via amino-silane. In addition, the crosslink density of the GMA-EVM/NSt nanocomposites with the aid of manganese stearate decreased with time, which gives a strong indication on the potential recyclability of the cross-linked nanocomposites. A new curing option offered by GMA-EVM together with a new concept to simultaneously bond nano-starch with EVM rubber and crosslink the rubber matrix were achieved, leading to robust polymeric nanocomposites with natural fillers.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Engineering Journal - Volume 346, 15 August 2018, Pages 497-505
Journal: Chemical Engineering Journal - Volume 346, 15 August 2018, Pages 497-505
نویسندگان
Pengwu Xu, Xiyuan Zhao, Piming Ma, Mingqing Chen, Weifu Dong, Martin Hoch, Pieter Jan Lemstra,