| 光敏材料添加量对聚乙烯力学性能的影响研究 |
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| 引用本文： | 张玉霞,梁青,刘博,彭彦泽,白彦坤,李小英.光敏材料添加量对聚乙烯力学性能的影响研究[J].标准科学,2017(3). |
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| 作者姓名： | 张玉霞 梁青 刘博 彭彦泽 白彦坤 李小英 |
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| 作者单位： | 1. 国家环保产品质量监督检验中心;河北省环保产品质量监督检验院;2. 国家环保产品质量监督检验中心;3. 河北省环保产品质量监督检验院 |
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| 基金项目： | 河北省科技计划项目(15275515) |
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| 摘 要： | 本文介绍了国内产品标准对光降解塑料力学性能的要求,并运用实验室氙弧灯光源暴露试验方法对添加不同配比降解母料的聚乙烯塑料袋进行降解试验,研究了降解前后力学性能的变化.结果发现,随降解母料添加量的增加,降解前后拉伸强度、断裂伸长率均降低.降解母料添加量为60%时,光降解后断裂伸长率保留率能达到标准规定的要求,同时能保证具有良好的使用性能.
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| 关 键 词： | 光降解 聚乙烯 力学性能 断裂伸长率保留率 |
Effect of the Amount of Photosensitive Material Added on the Mechanical Properties ofPolyethylene |
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| Authors: | ZHANG Yu-xia LIANG Qing LIU Bo PENG Yan-ze BAI Yan-kun LI Xiao-ying |
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| Abstract: | This paper introduces the requirements on mechanical properties of photodegradable plastics in domestic product standards, and carries out the degradation experiment by using the xenon-arc light sources exposure test method. It studies the degradation of the polyethylene plastic bags with different ratio of degradable masterbatch and the mechanical properties of the degradation products. The results show that the tensile strength and the elongation at break are decreased with the increase of the content of the degradation masterbatch. When the addition amount of biodegradable masterbatch is 60%, the breaking elongation retention rate after photodegradation can meet the requirements of the standard and ensure good performance. |
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| Keywords: | photodegradation polyethylene mechanical properties retention of elongation at break |
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