Title:
EPOXY RESIN COMPOSITION HAVING TWO-PHASE SEA-ISLAND STRUCTURE, COMPOSITE MATERIAL, AND PREPARATION METHODS THEREFOR
Document Type and Number:
WIPO Patent Application WO/2024/037194
Kind Code:
A1
Abstract:
Provided are an epoxy resin composition having a two-phase sea-island structure, a composite material, and preparation methods therefor. The epoxy resin composition having a two-phase sea-island structure comprises the following components in parts by mass: 50-120 parts of bisphenol glycidyl ether epoxy resin, 5-30 parts of low-viscosity aliphatic glycidyl ether epoxy resin, 50-120 parts of anhydride curing agent, 5-30 parts of polyether toughening agent, and 0-5 parts of accelerator. The epoxy resin composition and the epoxy resin-based composite material have a typical two-phase sea-island structure, such that the toughening effect is obvious; the impact toughness of the prepared composite material is greatly improved, such that the bending strength and the bending modulus are improved; and after the two-phase sea-island structure is formed for toughening the epoxy resin, the toughening agent has less effect on the tensile strength and the tensile modulus of the material, and has little effect on the glass transition temperature.
More Like This:
Inventors:
ZHANG WEIJUN (CN)
WANG SHUXIA (CN)
ZHAI JUNMING (CN)
CHEN FENG (CN)
MAO YASAI (CN)
ZHANG MINGHUI (CN)
YAO YALIN (CN)
JIA CHENHUI (CN)
WANG SHUXIA (CN)
ZHAI JUNMING (CN)
CHEN FENG (CN)
MAO YASAI (CN)
ZHANG MINGHUI (CN)
YAO YALIN (CN)
JIA CHENHUI (CN)
Application Number:
PCT/CN2023/103005
Publication Date:
February 22, 2024
Filing Date:
June 28, 2023
Export Citation:
Assignee:
BEIJING COMPOSITE MAT CO LTD (CN)
BEIJING COMPOSITE MAT TENGZHOU CO LTD (CN)
CHINA NAT BUILDING MATERIAL GROUP CO LTD CNBM (CN)
BEIJING COMPOSITE MAT TENGZHOU CO LTD (CN)
CHINA NAT BUILDING MATERIAL GROUP CO LTD CNBM (CN)
International Classes:
C08L63/00; C08J3/00; C08J5/04; C08K7/14; C08L71/02
Foreign References:
| CN115058099A | 2022-09-16 | |||
| CN110511536A | 2019-11-29 | |||
| CN105906814A | 2016-08-31 | |||
| CN113292819A | 2021-08-24 | |||
| JP2018035210A | 2018-03-08 | |||
| US20210277174A1 | 2021-09-09 |
Attorney, Agent or Firm:
BEIJING EAST IP LTD. (CN)
Download PDF: