文献类型：期刊文献

英文题名：Properties of UHMWPE fiber-reinforced composites

作者：Zhang, Xiaokang[1,2];Wang, Yaoxian[1,2];Cheng, Shujun[1,2]

机构：[1]E China Univ Sci & Technol, Minist Educ, Key Lab Specially Funct Polymer Mat & Related Tec, Shanghai 200237, Peoples R China;[2]E China Univ Sci & Technol, Sch Mat Sci & Engn, Shanghai 200237, Peoples R China

年份：2013

卷号：70

期号：3

起止页码：821

外文期刊名：POLYMER BULLETIN

收录：;EI(收录号：20132416407367);WOS:【SCI-EXPANDED(收录号:WOS:000316226300006)】；

基金：Support by the National Natural Science Foundation of China (Grant No. 50773019) is gratefully acknowledged.

语种：英文

外文关键词：UHMWPE fiber; Composites; Impact resistance; Dynamic mechanical properties; Dielectric properties

摘要：Based on our previous work, a new thermosetting resin system, named PCH, has been developed to be used as the matrix of ultrahigh-molecular-weight polyethylene (UHMWPE) fiber composites in order to get improved interface bond and mechanical properties. In this work, UHMWPE fiber/PCH composites with different ratios of PCH/styrene were prepared and the impact resistance, dynamic mechanical properties, and dielectric properties of UHMWPE fiber/PCH composites were investigated. The interlaminar shear failure characteristic of composites was analyzed by introducing a series of energy indexes indicating the energy absorbed in interlaminar shear failure process, which show good correlation with interlaminar shear strength of samples. UHMWPE fiber/PCH composites have excellent impact property, and the impact strength can reach 140.8 kJ/m(2) as the ratio of PCH/styrene is 60/40. Dynamic mechanical analysis showed that UHMWPE fiber/PCH composites have high storage moduli (E') and low dissipation factor (tan delta) and these properties are influenced by the interfacial adhesion. The dielectric property test demonstrated that UHMWPE fiber/PCH composites have low dielectric constant (2.20 < epsilon' < 2.55) and dielectric loss tangent (1.50 X 10(-3) < tan delta < 1.81 X 10(-2)) and show good stability in a large range of frequency and temperature.