Silibase is one of the leading & professional manufacturers specialized in producing all kinds of SILICONE BASED new materials.
Silibase technique team always focus on quality first and insist on developing new products.
Silibase people will serve you the best before and after sale.
Oct 19, 2023
The purpose of the present invention is to solve the problem of uneven toughening phase state and even no phase separation in existing epoxy matrix resin cured products, resulting in poor performance of epoxy matrix resin cured products that cannot meet the performance requirements of composite materials, as well as the complex preparation methods and processes of existing prepregs, imprecise control of resin content in prepregs, and high manufacturing costs of existing devices for preparing prepregs, The present invention provides an epoxy matrix resin, a prepreg, a preparation method thereof, and a device for preparing the prepreg.
The epoxy matrix resin of the present invention is made from 40 parts by weight of phenolic epoxy resin, 60 parts by weight of bisphenol A epoxy resin, 2-10 parts by weight of core-shell polymer, 15-24 parts by weight of curing agent, and 3.0-6.0 parts by weight of curing accelerator. The curing agent is a combination of dicyandiamide and 4,4 '- diaminodiphenyl sulfone, with 4,4' - diaminodiphenyl sulfone and dicyandiamide being 18 and 6 parts by weight, 14 and 7 parts by weight, 10 and 8 parts by weight, or 6 and 9 parts by weight, respectively; The curing accelerator is an organic urea or its derivative.
The prepreg of the present invention is made of epoxy matrix resin and fiber woven fabric, with a controlled volatile content of less than 1%. The epoxy matrix resin has a mass content of 37% to 43%, and the epoxy matrix resin is made of 40 parts of phenolic epoxy resin, 60 parts of bisphenol A epoxy resin, 2-10 parts of core-shell polymer, 15-24 parts of curing agent, and 3.0-6.0 parts of curing accelerator by mass, The curing agent is a complex curing agent of dicyandiamide and 4,4 '- diaminodiphenyl sulfone, wherein the mass fractions of 4,4' - diaminodiphenyl sulfone and dicyandiamide are 18 and 6, 14 and 7, 10 and 8, or 6 and 9, respectively. The curing accelerator is an organic urea or its derivative.
SILIBASE SILICONE is a professional manufacturer producing and selling: Acrylic Modified Silicone Resin Emulsion，Epoxy Modified Silicone Resin Emulsion，Smokeless Silicone Resin，Self-drying Silicone Resin，Highly Active Silicone Resin，Methyl Silicone Resin Intermediate and all kinds of SILICONE-BASED new materials. If you have any questions about silicone oil,Please contact us.