期刊
POLYMERS
卷 14, 期 23, 页码 -出版社
MDPI
DOI: 10.3390/polym14235323
关键词
flake zinc powder; epoxy; modification; toughen
资金
- Key R&D Projects in Hubei Province
- [2022BID014]
This paper studied the effects of carboxyl-terminated polybutylene adipate (CTPBA) and zinc powder on the properties of epoxy resin. It found that the use of KH-550 as a modifier for zinc powder showed significant improvement in the mechanical and bonding properties of the epoxy resin. Flake zinc powder (f-Zn) had a better modification effect than spherical zinc powder (s-Zn). The addition of f-Zn in suitable amounts significantly increased the tensile shear strength, peel strength, tensile strength, and impact strength of the composites.
As a typical brittle material, epoxy resin cannot meet its application requirements in specific fields by only considering a single toughening method. In this paper, the effects of carboxyl-terminated polybutylene adipate (CTPBA) and zinc powder on the mechanical properties, adhesion properties, thermodynamic properties and medium resistance of epoxy resin were studied. A silane coupling agent (KH-550) was used to modify zinc powder. It was found that KH-550 could significantly improve the mechanical properties and bonding properties of epoxy resin, and the modification effect of flake zinc powder (f-Zn) was significantly better than that of spherical zinc powder (s-Zn). When the addition amount of f-Zn was 5 phr, the tensile shear strength and peel strength of the composites reached a maximum value of 13.16 MPa and 0.124 kN/m, respectively, which were 15.95% and 55% higher than those without filler. The tensile strength and impact strength reached a maximum value of 43.09 MPa and 7.09 kJ/m(2), respectively, which were 40.54% and 91.11% higher than those without filler. This study provides scientific support for the preparation of f-Zn-modified epoxy resin.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据