GFRPP复合材料“浮纤”改善及结构与性能研究
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摘要
以改善玻纤增强聚丙烯(GFRPP)复合材料注射成型"浮纤"现象为研究目标,加入不同用量的石蜡对GFRPP复合材料进行改性,考察了石蜡对GFRPP复合材料表面形貌、流动性能、力学性能和热力学性能的影响。结果表明,加入石蜡有利于改善GFRPP复合材料的"浮纤"现象,加入超过10份石蜡后,复合材料注塑制品表面基本没有玻纤外露现象。随着石蜡用量的增加,复合材料的流动性能显著提高,力学性能有所下降,结晶温度降低。
In order to improve the"floating fiber"phenomenon of glass fiber reinforced polypropylene(GFRPP) composites by injection molding,GFRPP was blended with different proportions of paraffin wax.The effects of paraffin wax on the surface morphology,flow performance,mechanical properties and thermodynamic performance of GFRPP were investigated.The results show that the"floating fiber"phenomenon of GFRPP is improved by adding paraffin wax,when adding more than 10 phr paraffin wax,the surface of injection molding products has no glass fiber exposure phenomenon.With the increase of paraffin wax content,the flow performance of GFRPP/paraffin wax improved significantly,while the mechanical properties and crystallization temperature decreased.
In order to improve the"floating fiber"phenomenon of glass fiber reinforced polypropylene(GFRPP) composites by injection molding,GFRPP was blended with different proportions of paraffin wax.The effects of paraffin wax on the surface morphology,flow performance,mechanical properties and thermodynamic performance of GFRPP were investigated.The results show that the"floating fiber"phenomenon of GFRPP is improved by adding paraffin wax,when adding more than 10 phr paraffin wax,the surface of injection molding products has no glass fiber exposure phenomenon.With the increase of paraffin wax content,the flow performance of GFRPP/paraffin wax improved significantly,while the mechanical properties and crystallization temperature decreased.
引文
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[3]赵虹.玻璃纤维填充PP在车用通风管中的应用[J].现代塑料加工应用,2010(5):32.Zhao Hong.The application of glass fiber filled PP in vehicle vent pipe[J].Modern Plastics Processing and Applications,2010(5):32.
[4]Morelli C L.Influence of hybridization of glass fiber and talc on the echanical performance of polypropylene composites[J].Journal of Applied Polymer Science,2009,114:3 592–3 601.
[5]倪晓燕,陶杰,钱惠慧.玻璃纤维增强聚丙烯制品翘曲变形的研究[J].工程塑料应用,2006,34(10):32–34.Ni Xiaoyan,Tao Jie,Qian Huihui.Warpage of glass fiber reinforced polypropylene products[J].Engineering Plastics Application,2006,34(10):32–34.
[6]杨军,张汝英,周姣红,等.玻纤增强热塑性塑料制品“浮纤”现象改善措施研究[J].湖南工业职业技术学院学报,2008,8(6):14–18.Yang Jun,Zhang Ruying,Zhou Jiaohong,et al.Research on methods of improving the fiberglass revealed phenomena on the surface of glass fiber reinforced thermoplastics molded parts[J].Journal of Hunan Industry Polytechnic,2008,8(6):14–18.
[7]刘乐文,李聪,陶四平,等.聚丁烯对增强聚丙烯浮纤现象的改善[J].塑料工业,2012,40(4):111–114.Liu Lewen,Li Cong,Tao Siping,et al.Improvement of polybutylene on glass fiber floating phenomenon of reinforced PP[J].China Plastics Industry,2012,40(4):111–114.