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Aging in Fully Annealed and Subsequently Strained Poly(methyl methacrylate)
被引：0
作者：
Yukuo Nanzai
Akihiro Miwa
Shan Zi Cui
机构：
[1] Osaka City University,Department of Mechanical Engineering
来源：
Polymer Journal
|
2000年
/
32卷
关键词：
Aging;
Poly(methyl methacrylate);
Compressive Strain;
Yield Stress;
Strain Energy;
Differential Scanning Calorimetry;
Deformation Recovery;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Aging in fully annealed and subsequently strained poly(methyl methacrylate) (PMMA) was studied by mechanical compression, DSC and thermally stimulated deformation recovery. Evolution of yield stress with aging was observed for compressively strained and aged PMMA specimens. Evolution of yield stress was much more significant than in quenched and physically aged PMMA. Experimental data obtained by DSC and the thermally stimulated deformation recovery indicated strain energy given to the annealed PMMA specimen to be locked into physically aged structure more tightly with aging time. Thus, the evolution of yield stress of annealed and strained PMMA is probably due to the physically aged structure locking the strain energy tightly in itself.
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页码：51 / 56
页数：5
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