填充及增强ABS/PBT合金的性能比较与机理研究
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摘要
以丙烯腈-丁二烯-苯乙烯共聚物(ABS)/聚对苯二甲酸丁二醇酯(PBT)合金为研究对象,研究了碳酸钙、滑石粉、硅灰石和玻纤对合金力学强度、流动性和缺口冲击强度的影响。为了研究合金体系与单一组分体系的区别,对相同类型填充的ABS与ABS/PBT合金的力学性能进行对比,讨论了二者之间的联系。最后,通过电镜对不同填料填充的合金相形态进行了观察并分析了机理。结果表明,不同填料对合金的性能贡献均有不同,对于强度属性体现了协调作用。20%滑石粉填充ABS和PBT的弯曲强度分别为65. 9 MPa和100. 8 MPa,而相同填充下ABS/PBT合金的弯曲强度为83. 6 MPa。如果按两者的混合比例计算,合金的弯曲强度应为62. 3 MPa。
In this paper, the effects of calcium carbonate, talc, wollastonite and glass fiber on mechanical strength,fluidity and notched impact strength of the acrylonitrile butadiene styrene( ABS)/poly( butylene terephthalate)( PBT) alloy were studied. In order to study the difference between alloy system and single component polymer,the mechanical properties of the filled and glass fiber reinforced ABS and ABS/PBT alloy were investigated and discussed. Finally, the phase morphology of the alloys filled with different fillers was observed by electron microscopy and the mechanism was analyzed. The results show that different fillers could contribute differently to the properties of the ABS/PBT alloy. And the strength properties indicate the coordination effect. For example,the flexural strength of 20%talc-filled ABS and PBT are 65. 9 MPa and 100. 8 MPa,respectively. The flexural strength of ABS/PBT alloy with the same talc content is83. 6 MPa. If the flexural strength could be calculated by the ratios of ABS and PBT,the results could be62. 3 MPa.
In this paper, the effects of calcium carbonate, talc, wollastonite and glass fiber on mechanical strength,fluidity and notched impact strength of the acrylonitrile butadiene styrene( ABS)/poly( butylene terephthalate)( PBT) alloy were studied. In order to study the difference between alloy system and single component polymer,the mechanical properties of the filled and glass fiber reinforced ABS and ABS/PBT alloy were investigated and discussed. Finally, the phase morphology of the alloys filled with different fillers was observed by electron microscopy and the mechanism was analyzed. The results show that different fillers could contribute differently to the properties of the ABS/PBT alloy. And the strength properties indicate the coordination effect. For example,the flexural strength of 20%talc-filled ABS and PBT are 65. 9 MPa and 100. 8 MPa,respectively. The flexural strength of ABS/PBT alloy with the same talc content is83. 6 MPa. If the flexural strength could be calculated by the ratios of ABS and PBT,the results could be62. 3 MPa.
引文
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[2]HALE W,KESKKULA H,PAUL D R.Compatibilization of PBT/ABS blends by methyl methacrylate-glycidyl methacrylate-ethyl acrylate terpolymers[J].Polymer,1999,40(2):365-377.
[3]SUN S L,XU X Y,YANG H D,et al.Toughening of poly(butylene terephthalate)with epoxy-functionalized acrylonitrile-butadiene-styrene[J].Polymer,2005,46(18):7632-7643.
[4]付锦锋,麦堪成,程庆,等.ABS/PBT合金的制备与性能研究[J].塑料工业,2015,43(11):35-38.
[5]FRIEDRICH K.Polymer composites for tribological applications[J].Adv Indust Eng Polym Res,2018,1(1):3-39.
[6]LEE P C,KUO W F,CHANG F C.In situ compatibilization of PBT/ABS blends through reactive copolymers[J].Polymer,1994,35(26):5641-5650.
[7]TANG L,WANG L L,CHEN P X,et al.Toughness of ABS/PBT blends:The relationship between composition,morphology,and fracture behavior[J].J Appl Polym Sci,2017,135(13):46051.