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《工程塑料应用》 2019年第12期
DOI:10.3969/j.issn.1001-3539.2019.12.004
r-PE-HD/r-PET纤维复合材料的制备与性能
阮文灵,毛亚鹏,李秋影,吴驰飞
华东理工大学材料科学与工程学院高分子合金研究室,上海 200237 
Preparation and Properties of r-PE-HD/r-PET Fiber Composites
Nguyen Van-linh, Mao Yapeng, Li Qiuying, Wu Chifei
Polymer Alloy Lab, School of Materials Sci.and Tech, East China University of Sci and Tech, Shanghai 200237, China 
摘要:以回收高密度聚乙烯(r-PE-HD)和回收聚对苯二甲酸乙二酯(r-PET)纤维为原料制备复合材料。r-PET纤维通过对回收涤纶织物和回收土工膜进行开松、打碎而制成。为了改善r-PE-HD和r-PET的相容性,添加相容剂马来酸酐接枝PE-HD (PE-HD-g-MAH)改善r-PE-HD和r-PET纤维之间的界面粘合性。使用差示扫描量热仪、热重分析仪、万能试验机和冲击试验机等研究复合材料的热性能和力学性能。结果表明,添加相容剂后,r-PE-HD与r-PET纤维之间的界面结合得到改善。当相容剂含量为10份时,以回收涤纶织物制备出的r-PET (r-PET1)纤维与r-PE-HD进行共混,复合材料界面结合性最好,拉伸强度和冲击强度最高;而当相容剂含量为7份时,用土工膜制备的r-PET (r-PET2)纤维与r-PE-HD进行共混,复合材料界面结合性最好,拉伸强度和冲击强度最高。在r-PE-HD/r-PET1体系中,当相容剂含量较高时,r-PE-HD的熔点和结晶温度均明显下降;而在r-PE-HD/r-PET2体系中,未加相容剂时r-PE-HD的熔点和结晶温度较纯r-PE-HD有明显下降,随后增加相容剂含量,熔点和结晶温度变化不大。 
Abstract:Composite materials were prepared with recycled high density polyethylene (r-PE-HD) and recycled poly(ethylene terephthalate) (r-PET) fibers. The PET fibers were obtained by open-loosen and broken on the recycled fabric wastes and the recycled geomembrane. In order to improve the compatibility of r-PE-HD and r-PET fibers, the addition of PE-HD-g-MAH compatibilizer enhanced the interfacial adhesion between r-PE-HD and r-PET fibers. The thermal and mechanical properties of the composites were investigated by using a differential scanning calorimeter, a thermogravimetric analyzer, a universal testing machine and impact testers and so on. The results show that the interface adhesion between r-PE-HD and r-PET fibers is improved after the addition of the compatibilizer. When the content of the compatibilizer is 10 phr, the r-PET (r-PET1) fibers are prepared by recycled fabric wastes and blended with r-PE-HD, the composite has the best interface adhesion, the highest tensile strength and impact strength. When the compatibilizer content is 7 phr, the r-PET (r-PET2) fibers are prepared by recycled geomembrane and blended with r-PE-HD, the composite has the best interface adhesion, the highest tensile strength and impact strength. When the compatibilizer content increases in the r-PE-HD/r-PET1 system, the melting point and crystallization temperature of r-PE-HD are significantly decreased, while in the r-PE-HD/r-PET2 system without adding the compatibilizer, the melting point and crystallization temperature of r-PE-HD are significantly decreased compared with those of pure r-PE-HD, and then increasing the compatibilizer content, the melting point and crystallization temperature don't change much. 
关键词:回收高密度聚乙烯;回收聚对苯二甲酸乙二酯纤维;相容性 
Keywords:recycled high density polyethylene; recycled poly(ethylene terephthalate) fiber; compatibility 
本文引用格式:
阮文灵,毛亚鹏,李秋影,等. r-PE-HD/r-PET纤维复合材料的制备与性能[J].工程塑料应用,2019,47(12):21-26.
Nguyen Van-linh,Mao Yapeng,Li Qiuying,et al. Preparation and properties of r-PE-HD/r-PET fiber composites[J]. Engineering Plastics Application,2019,47(12):21-26. 

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