不饱和聚酯增容HDPE/GF复合材料的研究
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摘要
以不饱和聚酯(UP)为增容剂、过氧化二异丙苯(DCP)为引发剂制备了玻璃纤维(GF)增强高密度聚乙烯(HDPE)复合材料,研究了UP以及DCP的用量对该HDPE/UP/GF复合材料力学性能的影响。结果表明:UP的加入明显提高了复合材料的力学性能,当UP用量为7%时,复合材料的力学性能最优;而引发剂DCP的用量亦对复合材料的性能有着显著的影响,随着DCP用量的增加,复合材料的力学性能先升后降,其中当DCP用量为0.15%时,复合材料具有最佳力学性能。另外,扫描电镜(SEM)分析结果显示,UP的加入改善了复合材料的界面黏结,从而提高了复合材料的力学性能。
The glass fiber(GF) reinforced high density polyethylene(HDPE) was prepared with unsaturated polyester(UP) as compatibilizers, dicumyl peroxide(DCP) as initiator agent. The influence of different UP and initiator dicumyl peroxide(DCP) content on properties of the HDPE/UP/ GF composite was studied. The results show that the mechanical properties of the composite increases obviously with the addition of UP, and the composite shows the best mechanical properties when the content of UP is 7%; the initiator content also has a significant influence on the performance of the composite, the mechanical properties of the composite increase at first and then decrease, and the composite has optimal mechanical properties when the content of DCP is 0.15%. Moreover, the scanning electron microscope(SEM) results show the interfacial adhesion of composite improves with the addition of UP, which enhances the mechanical properties of the composite.
The glass fiber(GF) reinforced high density polyethylene(HDPE) was prepared with unsaturated polyester(UP) as compatibilizers, dicumyl peroxide(DCP) as initiator agent. The influence of different UP and initiator dicumyl peroxide(DCP) content on properties of the HDPE/UP/ GF composite was studied. The results show that the mechanical properties of the composite increases obviously with the addition of UP, and the composite shows the best mechanical properties when the content of UP is 7%; the initiator content also has a significant influence on the performance of the composite, the mechanical properties of the composite increase at first and then decrease, and the composite has optimal mechanical properties when the content of DCP is 0.15%. Moreover, the scanning electron microscope(SEM) results show the interfacial adhesion of composite improves with the addition of UP, which enhances the mechanical properties of the composite.
引文
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[17]S Sánchez-Valdes,E Ramírez-Vargas,M C Ibarra-Alonso,et al.Itaconic acid and amino alcohol functionalized polyethylene as compatibilizers for polyethylene nanocomposites[J].Composites Part B,2012,42:497-502.
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[19]高茜斐,赵耀明,阳范文.高密度聚乙烯接枝甲基丙烯酸缩水甘油酯的研究[J].合成材料老化与应用,2001(4):17-19.
[2]李新中,余鼎声,徐日炜,等.HDPE/GF的力学性能及非等温结晶行为研究[J].塑料工业,2005,33(10):44-46.
[3]H Phelps,I Ahmed,A El-Rahman,et al.A model for fiber length attrition in injection-molded long-fiber composites[J].Composites Part A,2013,51:11-21.
[4]张宁,李忠恒,陶宇,等.长纤维增强聚乙烯复合材料的研究[J].工程塑料应用,2007,35(1):21-25.
[5]P Nygard,C G Gustafson.Interface and impregnation relevant tests for continuous glass fibre-polypropylene composites[J].Composites Part A,2003,34:995-1 006.
[6]M Etcheverry,M L Ferreira,N Capiati,et al.Chemical anchorage of polypropylene onto glass fibers:Effect on adhesion and mechanical properties of their composites[J].International Journal of Adhesion&Adhesives,2013,43:26-31.
[7]康永,柴秀娟,艾罡.纤维增强热塑树脂基复合材料界面问题[J].炭素,2011(2):43-46.
[8]SY Fu,B Lauke,E Mader,et al.Tensile properties of short glass fiber and short carbon fiber reinforced polypropylene composites[J].Composites Part A,2000,31:1 117-1 125.
[9]陈现景,岳云龙,于晓杰,等.界面改性方法对玻纤增强聚丙烯复合材料力学性能的影响[J].玻璃钢/复合材料,2008(1):14-16.
[10]J L Li,X M Xie.Reconsideration on the mechanism of free-radical melt grafting of glycidyl methacrylate on polyolefin[J].Polymer,2012,53:2 197-2 204.
[11]C J R Verbeek,S H Hanipah.Grafting itaconic anhydride onto polyethylene using extrusion[J].Journal of Applied Polymer Science,2010,116:3 118-3 126.
[12]J M H Daemen,J Basten.The influence of glass fiber sizing on the properties of GF/PP[J].Engineering Plastics,1991,4(2):82-95.
[13]谭洪生,孙海青,李丽平.连续/长纤维增强热塑性复合材料的浸渍模具:中国,201120144006.8[P].2011-11-16.
[14]祝晚华,刘琦焕,范春娟.不饱和聚酯树脂改性研究新进展[J].绝缘材料,2011,44(2):34-38.
[15]E K Gamstedt,M Skrifvarsb,T K Jacobsenc,et al.Synthesis of unsaturated polyesters for improved interfacial strengthin carbon fibre composites[J].Composites Part A,2002,33:1 239-1 252.
[16]谢婷,薛斌,李荣华,等.不饱和聚酯对PP/GF复合材料性能的影响[J].塑料工业,2010,11(38):66-68.
[17]S Sánchez-Valdes,E Ramírez-Vargas,M C Ibarra-Alonso,et al.Itaconic acid and amino alcohol functionalized polyethylene as compatibilizers for polyethylene nanocomposites[J].Composites Part B,2012,42:497-502.
[18]金慧,盛京,原续波.反应挤出聚烯烃接枝改性研究进展[J].高分子通报,2006(3):37-41.
[19]高茜斐,赵耀明,阳范文.高密度聚乙烯接枝甲基丙烯酸缩水甘油酯的研究[J].合成材料老化与应用,2001(4):17-19.