LGF/PP复合材料的制备工艺及性能研究
Development and Application of Materials(2020)
Abstract
采用连续玻璃纤维(GF)增强高流动性聚丙烯(PP),通过共混挤出和二次预热模压,制备了LGF/PP复合材料标准样板,研究了不同共混挤出工艺对LGF/PP模压成型标准样条性能的影响.研究结果表明,随着纤维进纱数量和主螺杆转速的增加,LGF/PP标样的拉伸和弯曲弹性模量及玻璃纤维含量逐渐增加,而其弯曲强度、冲击强度、拉伸强度逐渐减小;随着主喂料速度的增加,LGF/PP标样的拉伸和弯曲弹性模量及玻璃纤维含量逐渐减小,弯曲强度、冲击强度、拉伸强度逐渐增加.
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