Novel low-viscosity bio-based epoxy resin composition and carbon fiber composite material

• Main Authors: GUO ZONGWEI, ZHUANG HAILIN, LIU LIU, MA YAN, SHANG LEI, SHI FEI, AO YUHUI, DU WEIFENG
• Format: Patent
• Language: Chinese; English
• Published: 18.02.2020
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS

The invention provides a novel low-viscosity bio-based epoxy resin composition and a carbon fiber composite material, and belongs to the field of epoxy resin compositions. The epoxy resin compositioncomprises the following components in parts by weight: 100 parts of bio-based epoxy resin and 1-70 parts of a curing agent, and the bio-based epoxy resin has a structure as shown in a formula (1). Theinvention also provides a carbon fiber composite material which comprises the following components in parts by weight: 15-30 parts of bio-based epoxy resin, 10-20 parts of a curing agent, 0.1-0.3 part of an accelerant and 25-50 parts of a carbon fiber material, and the bio-based epoxy resin has a structure as shown in a formula (1). The composition has excellent mechanical properties, and when the low-viscosity epoxy resin and the carbon fiber are compounded, the wettability of the low-viscosity epoxy resin and the carbon fiber is improved due to the fact that the low-viscosity epoxy resin and the carbon fiber have lo