玻璃纤维增强聚丙烯的力学性能研究.pdf

玻璃纤维增强聚丙烯的力学性能研究
《上海塑料》2014年第1期(总第165期)
新产品新技术
玻璃纤维増蝨聚丙烯的力学性能研究
刘太闯,新玲,徐冬梅,王忠光,王艳秋
(徐州工业职业技术学院,江苏徐州221140)
摘要研究了玻璃纤维(GF)和马来酸酐接枝聚丙烯(PP-gMAH)对聚两烯力学性能的影响。结果表
明:随着GF与PP的质量比増加,玻璃纤维增强聚丙烯的拉仲强度增加,冲击强度总体呈下降趋勢。
当PP与GF的质量比为55:45时,拉伸强度最高,达到45MPa。当PP与GF的质量比一定时,在玻
璃纤维増强聚丙烯复合村料中添加增容剂马来酸酐接枝聚两烯(PP-g-MAH),可使其拉伸强度得到很
大的提高,但是冲击性能却下降。当PP与GF的质量比为75:25时,随PP-gMAH与PP/GF复合
材料的质量比増加,其拉伸强度先增大后减小,其冲击性能总体呈下降趋势。当PP-g-MAH,PP和
GF的质量比为15:75:25时,其综合性能最优,拉伸强度为50.5MPa,沖击强度为4.3kJ/n2。
关键词玻璃纤维;P-g-MAH;聚丙烯;力学性能
中图分类号:TQ320.6
文献标志码:A
文章编号:1009-5993(2014)01-002604
Study on Mechanical Properties of Glass Fiber Reinforced Polypropylene
L1U Tai-chwang, IN Ling, XU Dong-mei, WANG Zhong-guang, WANG Yan-qiu
(Xuzhou College of Industrial Technology, Xuzhou 221140, China)
Abstract: The effect of glass fiber (GF) and maleic anhydride grafted polypropylene (PP-G-MAH) on the
mechanical properties of polypropylene are investigated. The results show that with the increase of the
mass ratio of GF to PP, the tensile strength of glass fiber reinforced polypropylene increases, impact
strength decreases as a whole. When the mass ratio of PP to GF is 55: 45, the highest tensile strength
s up to 45 Mpa. When the mass ratio of PP to GF is constant, adding solubilizing agent PP-G-MAFI in
glass fiber reinforced polypropylene composites, the tensile strength has greatly improved, but the im
pact strength decreases. When the mass ratio of PP to GF is 75: 25, with the increase of the mass ratio
maleic anhydride grafted polypropylene to PP/GF composite, the tensile strength increases first and
then decreases, the impact property of the overall is downward. When the mass ratio of maleic an
hydride grafted polypropylene, polypropylene and glass fiber is 15: 75: 25, there is the optimal com-
prehensive pcrformance: tensile strength is 50.5 Mpa, impact strength is 4.3 KJ/m
Key words: glass fiber; PP-G-MAH; po
Mechanical
ties
0前言
比高,化学稳定性好,易于加工成型和回收利用。
然而,PP成型收缩率大,对缺口敏感,低温时易开
聚丙烯(PP)密度小,产量大,价格低廉,性价裂,冲击性能差。随着纤维增强塑料复合材料
(FRP)的出现,玻璃纤维(GF)增强PP复合材料被
收稿日期:2014-03-02
大量应用于工程领域。但由于玻璃纤维的引人,将
作者简介:刘太阿(1978-),男,硕士,研究方向:塑料改性技术及对原有基体材料的各项性能产生很大影响山。随
注塑成型技术
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