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| 聚酰胺及其改性材料自然老化行为研究及预测 | |
| 引用本文： | 李闽,林安,朱华,汪的华,甘复兴,林安,彭坚,揭敢新.聚酰胺及其改性材料自然老化行为研究及预测[J].环境技术,2011,34(3):40-43. |
| 作者姓名： | 李闽 林安 朱华 汪的华 甘复兴 林安 彭坚 揭敢新 |
| 作者单位： | 1. 武汉大学资源与环境科学学院 2. 金属腐蚀与防护国家重点实验室 3. 广州(中国)电器科学研究院工业产品环境适应性国家重点实验室 |
| 摘 要： | 在自然环境(武汉)下进行了两年半的老化曝晒实验,随着老化时间的增长,聚酰胺材料的吸水率逐渐增加,力学性能下降,表面出现了不同程度的裂纹.通过吸水率测试和力学性能的比较,发现环境湿度影响聚酰胺老化过程中力学性能变化,湿度越大,材料力学性能下降越快;改性后,即添加了玻璃纤维后的聚酰胺,能够在一定程度下减缓材料老化行为.对材... |
| 关 键 词： | 聚酰胺 玻璃纤维 环境湿度 力学性能 灰预测 |
Study on Natral Aging Property and Prediction of PA66 and Glass Fiber Composite Materials |
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| LI Min,LIN An,PENG Jian,JIE Gan-xin.Study on Natral Aging Property and Prediction of PA66 and Glass Fiber Composite Materials[J].Environmental Technology,2011,34(3):40-43. | |
| Authors: | LI Min LIN An PENG Jian JIE Gan-xin |
| Institution: | ZHU Hua WANG De-hua GAN Fu-xing |
| Abstract: | We had performed the experiments of natural aging of PA66 and PA66/GF in Wuhan for two and a half years.As the aging time growth,the water absorption of polyamide materials is increasing,while mechanical properties are decreasing with varying degrees of surface cracks.By comparison of the tests,we found that humidity had an effect on the mechanical properties of polyamide changes.The greater the humidity,the faster the decline in mechanical properties;After adding glass fiber into polyamide,the aging behavior of materials can be slowed down.The prediction of mechanical properties of natural aging is of importance to the improvement of plastic products. |
| Keywords: | polyamide glass fiber humidity mechanical property grey prediction |
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