It carried out the ultraviolet accelerated aging test on the polypropylene woven sack produced and used in Northwest of China, and analyzed and studied the results.
对西北地区生产使用的聚丙烯塑编袋进行了紫外线加速老化试验，并对结果进行了分析研究。
The polypropylene(PP) was modified by self-made sericite-based inorganic UV-screen agent, and the mechanical properties of the PP composites after light aging were tested.
用自制的绢云母质无机紫外屏蔽剂改性聚丙烯（ PP），对光老化后的PP 复合材料进行力学性能测试。
This article describes the aging reasons and phenomena of polypropylene woven sack without adding anti-aging agent.
阐述了未添加抗老化剂的聚丙烯编织袋的老化原因及现象。
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