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Title:
EPOXY RESIN BATCH FOR COMPOSITE MATERIAL PULTRUSION AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2023/221619
Kind Code:
A1
Abstract:
An epoxy resin batch for composite material pultrusion and a preparation method therefor, relating to the technical field of epoxy resin materials. The resin system can be applied to preparation of structural materials such as a pultruded plate for a wind turbine blade main beam, a pultruded carbon fiber plate for engineering reinforcement, a rib, etc. The epoxy resin batch consists of component A and component B in a weight ratio of 100:(80-120), component A being prepared from bisphenol A epoxy resin, low-viscosity epoxy resin, a wetting dispersant, a defoaming agent and an internal release agent in proportion, and component B being prepared from liquid anhydride, a toughening agent, a general accelerator and a latent accelerator in proportion. The epoxy resin batch is used for a composite material pultrusion process, uses a double-accelerator curing system, and has the characteristics of a long available period, a high curing speed after medium-high temperature initiation, a good mechanical property of a cured product, etc.

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Inventors:
WANG HUI (CN)
LEI CHENGYUN (CN)
SUN BIN (CN)
BAO ZHAODING (CN)
ZHANG LILI (CN)
Application Number:
PCT/CN2023/081486
Publication Date:
November 23, 2023
Filing Date:
March 15, 2023
Export Citation:
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Assignee:
NANJING HITECH COMPOSITES CO LTD (CN)
International Classes:
C08G59/40; C08G59/42; C08G59/50; C08G59/56; C08G59/68
Foreign References:
CN114907548A2022-08-16
CN106432691A2017-02-22
CN106987094A2017-07-28
CN114045007A2022-02-15
CN111393800A2020-07-10
CN111471274A2020-07-31
JP2004307648A2004-11-04
JP2005226014A2005-08-25
JP2007284545A2007-11-01
Attorney, Agent or Firm:
BEIJING ZHONGRUIZHIHENG INTELLECTUAL PROPERTY AGENCY (GENERAL PARTNERSHIP) (CN)
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