Aging in quenched poly(methyl methacrylate) under inelastic tensile strain

被引：0
作者：
Cui, SZ [1 ]
Nanzai, Y [1 ]
机构：
[1] Osaka City Univ, Dept Mech Engn, Osaka 5588585, Japan
来源：
POLYMER JOURNAL | 2001年 / 33卷 / 05期
关键词：
aging; poly(methyl methacrylate); tensile strain; expansive hydrostatic pressure; tensile modulus; yield stress; differential scanning calorimetry (DSC); deformation recovery;
D O I：
暂无
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Aging in quenched poly(methyl methacrylate) (PMMA) under inelastic tensile strain was studied by mechanical test, differential scanning calorimetry (DSC) and thermally stimulated deformation recovery. Evolutions of tensile modulus and yield stress with aging time for PMMA aged under tensile strain were much more significant than those in quenched and physically aged PMMA, giving evidence of aging in quenched PMMA even under negative (expansive) hydrostatic pressure. Experimental data obtained by DSC and the thermally stimulated deformation recovery indicated strain given to the quenched PMMA specimen to be locked into physically aged structure more tightly with aging time.
引用
收藏
页码：444 / 449
页数：6
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