16-Year Creep of Polyethylene and PVC,

16-Year Creep of Polyethylene and PVC,
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聚乙烯和PVC的16年蠕变，

DOI：
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发表时间：
1974
期刊：
影响因子：
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通讯作者：
J. F. Tracy
J. F. Tracy
中科院分区：
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文献类型：
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作者：
W. Findley;J. F. Tracy

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摘要：对两种热塑性塑料在恒定应力、温度和相对湿度下进行了约 132 000 小时的蠕变测试。前 2000 小时的应变由方程描述。该方程可预测 PVC 的蠕变时间约为 132 000 小时。具有合理的准确性。聚乙烯的预测应变有点低。 90 000 小时后卸载和重新装载期间的应变。玻尔兹曼叠加原理可以很好地预测蠕变。 （作者，修改-PL）
Abstract : Creep tests at constant stress, temperature and relative humidity for two thermoplastics were conducted for approximately 132 000 hr. The strains for the first 2000 hrs were described by an equation. This equation was found to predict the creep of PVC for approx-imately 132 000 hr. with reasonable accuracy. The predicted strains for polyethylene were somewhat low. Strains during unloading and reloading after 90 000 hr. of creep were pre-dicted reasonably well by the Boltzmann superposition principle. (Author, modified-PL)