Effect of organoclay loading and electron beam irradiation on the physico-mechanical properties of low-density polyethylene/ethylene-vinyl acetate blend

被引：6
|
作者：
Shojaei, A. [1 ]
Behradfar, A. [1 ]
Sheikh, N. [2 ]
机构：
[1] Sharif Univ Technol, Dept Chem & Petr Engn, Tehran, Iran
[2] Radiat Applicat Res Sch, NSTRI, Tehran, Iran
来源：
POLYMERS FOR ADVANCED TECHNOLOGIES | 2011年 / 22卷 / 12期
关键词：
low-density polyethylene; ethylene-vinyl acetate; organoclay; nanocomposite; electron beam; NANOCOMPOSITES; BEHAVIOR; EVA; MORPHOLOGY; COPOLYMER; MODEL;
D O I：
10.1002/pat.1770
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
The influence of electron beam (EB) irradiation and organoclay (OC) loading on the properties of low-density polyethylene (LDPE)/ethylene-vinyl acetate (EVA) blends was investigated. The samples were subjected to the EB irradiation with the dose values of 50 and 250 kGy. X-ray diffraction (XRD), gel content, mechanical, thermal, and electrical properties were utilized to analyze the characteristics of the LDPE/EVA blends with and without OC at different irradiation dosages. Gel content analysis showed that the OC promotes considerably the insoluble part so that the LDPE/EVA blends filled with OC become fully crosslinked at 250 kGy; possibly through the formation of further crosslinks between OC and polymer chains. The samples irradiated by EB showed enhanced mechanical properties due to the formation of three-dimensional networks. In addition, thermogravimetric analysis indicated that combined OC loading and radiation-induced crosslinking improved thermal stability of LDPE/EVA blends considerably. Copyright (C) 2011 John Wiley & Sons, Ltd.
引用
收藏
页码：2352 / 2359
页数：8
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