为提升涤纶/锦纶/氨纶等回收材料的利用价值,分别以马来酸酐接枝聚丙烯(PP-g-MAH)、甲基丙烯酸酸水甘油酯接枝乙烯-辛烯共聚物(POE-g-GMA)为相容剂;经平板硫化机预处理、造粒、注塑等加工过程,从力学性能、微观结构两个方面对共混改性效果进行了研究。结果表明:PP-g-MAH对拉伸强度、弯曲轻度、弯曲模量这3项力学性能指标更有利,POE-g-GMA对断裂延伸率及冲击强度这两项力学性能指标更有利;利用扫描电镜对材料的表面及断裂面进行了微观分析,表明上述加工工艺及相容剂对材料起到了很好的分散和增容效果。
In order to enhance the utilization value of recycled materials such as polyester/nylon/spandex,used maleic anhydride grafted polypropylene (PP-g-MAH) and methacrylic acid glyceryl glycol grafted ethylene-octene copolymer (POE-g-GMA) as compatibilizer respectively.After flat vulcanizer pretreatent,granulation,injection and other processing,the effects of mechanical properties and microstructure were studied.The results shown that:(1)PP-g-MAH was more favorable for tensile strength,slight bending and flexural modulus,and POE-g-GMA was more favorable for break and impact strength,When POE-g-GMA was selected as the compatibilizer;(2)Surface and fracture surface of the material were studied by scanning electron microscopy,It shown that the above processing technology and compatibilizer had a good dispersion and compatibilizing effect on the material.
[1] Parvinzadeh M,Ebrahimi I.Atmospheric air-plasma treatment of polyester fiber to improve the performance of nanoemulsion silicone[J].Applied Surface Science,2011,257(9):4062-4068.
[2] 黄银春,沈帆,郭秋月,等.PP-g-(DAP-CO-GMA)的制备及PP/PET相容性研究[J].现代塑料加工应用,2017,29(5):9-12.
[3] 周晓沧.PET工程塑料现状及展望[J].合成技术及应用,2006,21(1):34-38.
[4] MchIntyre J E.Synthetic fibers[M].Beijing:China Textile &Apparel Press,2006,95-157.
[5] 于昊宇,许国志.不同熔融混炼条件下PET的降解行为和结晶行为[J].中国塑料,2013,27(5):39-43.
[6] 彭文勇,李青海,季建仁,等.PET/PP共混改性研究[J].国外塑料,2009,27(7):41-43.
[7] Mendes L C,Mallet I A,Cestari S P,et al.Solid state of polymerization of PET/PC Extruded blend:effect of reaction temperature on thermal,morphological and viscosity properties[J].Polimeros,2014,24(4):422-427.
[8] 王春广,林劲新,章自寿,等.PP-g-MA及其混合相容剂增容r-PET/PP共混物的力学性能[J].中山大学学报(自然科学版),2013,52(1):63-67,73.
[9] Kalfoglon N K,Skafidas D S,Kallitsis J K,et al.Comparison of compatibilizer effectiveness for PET/HDPE blends[J].Polymer,1995,36(23):4453-4462.
[10] Bai Z F,Dou Q.Non-isothermal crystallization kinetics of polypropylene/poly(lactic acid) /maleic anhydride-grafted polypropylene blends[J].Journal of Thermal Analysis and Calorimetry,2016,126:784-794.
[11] 张华集,甘晓平,张雯,等.TPV及PP-g-MAH对回收PET的改性研究[J].塑料科技,2012,40(1):60-64.
[12] 邱丽清,刘杭忠,赵升云,等.相容剂增容聚对苯二甲酸乙二醇酯/聚乳酸共混物的制备及结晶性能与热性能[J].高分子材料科学与工程,2018,34(3):73-80.
[13] 林新土,陈庆华,钱庆荣,等.POE-g-MAH对r-PET/PP共混体系相形态及流变行为的影响[J].中国塑料,2013,27(12):34-40.
[14] Kracalik M,Studenovsky M,Mikešova J,et al.Recycled PET-organoclay nanocomposites with enhanced processing properties and thermal stability[J].Journal of Applied Polymer Science,2007,106(3):2092.
[15] 石素宇,王利娜,赵康,等.再生PET纤维/PP复合材料的结构及力学性能[J].复合材料学报,2017,34(7):1511-1516.
[16] 周楠婷,张锴,蔡青.基于麻纤维板材回收再利用的汽车内饰用短纤维增强复合材料性能的研究[J].塑料工业,2019,47(8):156-159.
[17] 袁新恒,张隐西,张祥福.马来酸酐接枝聚丙烯在纸粉填充聚丙烯体系中偶联作用的研究[J].高分子材料科学与工程,1999,15(6):112-114.
[18] 侯凌云.回收PET增强PP的制备与性能研究[D].上海:上海交通大学,2014.
