Reinforcement of an ionic thermoplastic elastomer based on a zinc-sulfonated ethylene-propylene-diene terpolymer by precipitated silica

被引：9

作者：

Kurian, T ^{[1
]}

Khastgir, D ^{[1
]}

De, PP ^{[1
]}

Tripathy, DK ^{[1
]}

De, SK ^{[1
]}

Peiffer, DG ^{[1
]}

机构：

[1] EXXON RES & ENGN CO,ANNANDALE,NJ 08801

来源：

POLYMER | 1996年 / 37卷 / 25期

关键词：

ionic thermoplastic elastomer; precipitated silica; reinforcement;

D O I：

10.1016/S0032-3861(96)00392-8

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Precipitated silica improves the physical properties of a zinc-sulfonated ethylene-propylene-diene terpolymer (SEPDM) of high (i.e. 75 wt%) ethylene content. The properties studied include hardness, stress-strain characteristics, tear strength, abrasion resistance and hysteresis. Processability studies carried out by using the Monsanto Processability Tester (MPT) show that silica increases the melt viscosity of the zinc-sulfonated EPDM. Results obtained from dynamic mechanical analysis (d.m.a.) show that silica reinforces the backbone chain and weakens the ionic associations. The results obtained from dielectric thermal analysis (d.e.t.a.) confirm the d.m.a. results and suggest that the formation of multiplets and clusters present in the SEPDM are adversely affected by silica. Copyright (C) 1996 Elsevier Science Ltd.

引用

页码：5597 / 5605

页数：9

共 26 条

[1] VISCOELASTIC BEHAVIOR OF SULFONATED POLYMERS - SULFONATED ETHYLENE-PROPYLENE TERPOLYMER [J].