尼龙及增容剂对聚氯乙烯木塑复合材料性能的影响

发布时间：2018-01-06 17:13

本文关键词：尼龙及增容剂对聚氯乙烯木塑复合材料性能的影响　出处：《东北林业大学学报》2017年06期 　论文类型：期刊论文

【摘要】：PVC木塑复合材料中添加低熔点尼龙,并引入3种增容剂:马来酸酐接枝EVA(EVA-g-MAH)、马来酸酐接枝聚丙烯(PP-g-MAH)和马来酸酐接枝POE(POE-g-MAH),以提高材料的性能。力学性能测试显示:尼龙及增容剂的添加提高了PVC木塑复合材料的力学性能。其中,EVA-g-MAH的使用效果最为明显,复合材料的冲击强度提高了39.02%,弯曲强度提高了16.37%。动态力学性能测试表明:添加低熔点尼龙及增容剂,不同程度地降低了复合材料的储能模量。转矩流变性能测试表明:低熔点尼龙降低了复合材料的平衡转矩。而EVA-gMAH及POE-g-MAH提高了尼龙-PVC复合材料的平衡转矩,对材料的加工性有不利的影响。扫描电镜分析表明:加入增容剂后,复合材料界面不同程度发生钝化,复合材料相容性提高。吸水率测试结果表明:低熔点尼龙的加入提高了PVC复合材料的吸水率,而增容剂对降低材料吸水率有明显作用。
[Abstract]:The addition of low melting nylon PVC composites, and the introduction of 3 kinds of compatibilizer EVA grafted with maleic anhydride (EVA-g-MAH), maleic anhydride grafted polypropylene (PP-g-MAH) and maleic anhydride grafted POE (POE-g-MAH), in order to improve the properties of the material. The mechanical performance test showed that: adding nylon and compatibilizer improve the mechanical properties of PVC wood composite materials. Among them, the use of EVA-g-MAH the most obvious effect, the impact strength of the composite increased by 39.02%, the flexural strength increased the dynamic mechanical properties of 16.37%. test showed that the addition of low melting point polyamide and compatibilizer, reduced the storage modulus of the composites. The torque rheological performance tests showed that the low melting point reducing nylon the balance torque of composite materials. While EVA-gMAH and POE-g-MAH improves the balance torque of nylon -PVC composites, have a negative impact on the processing of materials. Scanning electron microscopy analysis showed that: After adding compatibilizer, the interface of the composites was passivated and the compatibility of the composites increased. The results of water absorption test showed that the water absorption of PVC composites increased with the addition of low melting nylon, and compatibilizer had a significant effect on reducing the water absorption of the composites.

【作者单位】：生物质材料科学与技术教育部重点实验室(东北林业大学);华南农业大学;
【基金】：黑龙江省自然科学基金青年项目(QC2016017) 中央高校基本科研业务费专项资金项目(2572015BX02)
【分类号】：TB332
【正文快照】： 1)黑龙江省自然科学基金青年项目(QC2016017);中央高校基本科研业务费专项资金项目(2572015BX02)。bo_2009@126.com。通信作者:房轶群,生物质材料科学与技术教育部重点实验室(东北林业大学),讲师。E-mail:yqfang@nefu.edu.cn。Effect of Low Melting Point Nylon and Compatib

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