发明名称 |
Method and device for determining the environmental stress cracking resistance of plastic articles |
摘要 |
A method and device are disclosed for the determination of the environmental stress crack resistance (ESCR) of polymer articles made from polymers such as acrylonitrile-butadiene-styrene copolymers, polycarbonate, polystyrene and blends thereof. The method and device involve the external application of stress to an unstressed test article which has been exposed to a stress cracking agent. The stress is induced by means of a weight located below the horizontal plane of the plastic article. The time between the application of stress and the cracking of the test article is measured to compute a characteristic ESCR parameter and thereby evaluate the environmental stress crack resistance of the article.
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申请公布号 |
US4750369(A) |
申请公布日期 |
1988.06.14 |
申请号 |
US19860895892 |
申请日期 |
1986.08.12 |
申请人 |
AMOCO CORPORATION |
发明人 |
FISHER, JAMES H.;JACOBY, PHILIP |
分类号 |
G01N3/00;G01N3/02;G01N3/06;G01N3/14;G01N33/44;(IPC1-7):G01N3/14 |
主分类号 |
G01N3/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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