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耐低温、高韧性复合材料的制备及性能研究
Preparation and Performance Study of a Low Temperature Resistant and High Toughness Composite Material
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- DOI:
- 作者:
- 吴佩军1，刘国瑞1，白敏1，蔡继峰1，赵中国2
Wu Peijun 1, Liu Guorui 1, Bai Min 1, Cai Jifeng 1, Zhang Zhongguo 2
- 作者单位:
- （1. 咸阳宝石钢管钢绳有限公司，陕西咸阳712000；2. 陕西理工大学，陕西汉中723000）
(1. Xianyang Bo
- 关键词:
- 聚丙烯；钢丝绳；复合
polypropylene; wire rope; composite
- 摘要:
- 摘要：采用熔融共混工艺，制备了聚丙烯（PP）/ 热塑性弹性体（TPE）/ 线性低密度聚乙烯
（LLDPE）/纳米CaCO3复合材料。用扫描电镜、熔融指数仪、万能拉力试验机和冲击试验机等
仪器研究了LLDPE、BIA 和纳米CaCO3对复合材料的力学性能和微观形貌的影响。结果显示，
BIA、LLDPE 和CaCO3的加入对复合材料的熔体流动性、断裂伸长率和冲击强度均有显著的改
善，其中，熔融指数从2.31 g（/ 10 min）提高到4.11 g（/ 10 min），断裂伸长率从524.2%提高到
857.1%。利用扫描电子显微镜观察不同体系的形态，发现LLDPE 的加入能够有效改善复合
材料的界面相容性。根据质量磨耗仪的测试数据发现，CaCO3的加入能够在一定程度上提高
复合材料的耐磨性能；LLDPE 和CaCO3的同时引入也能够提高复合材料的低温冲击性能。此
实验为制备耐低温、高韧性的钢丝绳填包覆材料提供了指导。
Abstract: One composite materials melt and mixed with Polypropylene (PP) / thermoplastic elastomer (TPE) / linear low-density
polyethylene (LLDPE) /nano CaCO3 were prepared. The effects of LLDPE, BIA, and nano CaCO3 on the mechanical properties and
microstructure of composite materials were studied in detail using scanning electron microscopy, melt index analyzer, universal
tensile testing machine, and impact testing machine.The results showed that the addition of BIA, LLDPE, and CaCO3 significantly
improved the melt flow, fracture elongation, and impact strength of the composite material,Among them, the melt flow rate increased
from 2.31 g/(10 min) to 4.11 g/(10 min); The elongation at break has increased from 524.2% to 857.1%. By using scanning electron
microscopy to observe the morphology of different systems, it was found that the addition of LLDPE can effectively improve the
interfacial compatibility of composite materials. According to the test data by the quality abrasion tester, it was found that the
addition of CaCO3 can improve the wear resistance of the composite material to a certain extent; The addition of LLDPE and CaCO3
at the same time can improve the low-temperature impact performance of composite materials. This experiment provides guidance
for the preparation of low temperature resistant and high toughness composite materials which were filled steel wire rope .