Specific implementation method 7: The difference between this implementation method and specific implementation method 6 is that in step 1, 40 parts of phenolic epoxy resin, 60 parts of bisphenol A epoxy resin, 3-8 parts of core-shell polymer, 18-22 parts of curing agent, and 4.0-5.0 parts of curing accelerator are weighed by mass. The other parameters are the same as the specific implementation method 6.In this embodiment, it is preferable to weigh 40 parts of phenolic epoxy resin, 60 parts of ...

Specific implementation method 4: The difference between this implementation method and specific implementation methods 1, 2, or 3 is that the epoxy value of the phenolic epoxy resin is 0.42~0.54, and the epoxy value of the bisphenol A epoxy resin is 0.41~0.56. The other parameters are the same as those of specific embodiments 1, 2, or 3.Specific implementation method 5: The difference between this implementation method and specific implementation methods 1 to 4 is that the curing accelerator is ...

The technical solution of the present invention is not limited to the specific implementation methods listed below, but also includes any combination of various specific implementation methods.Specific implementation method 1: The epoxy matrix resin of this implementation method is made of 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 curi ...

The device of the present invention is equipped with a magnetic particle clutch on the product winding roller shaft, single side release paper winding roller shaft, fiber woven fabric winding roller shaft, single side release paper winding feeding roller shaft, and double side release paper winding feeding roller shaft.In the device of the present invention, both the single side release paper winding roller shaft and the double side release paper winding roller shaft are equipped with closed cav ...

The prepreg of epoxy matrix resin is made of epoxy matrix resin and fiber woven fabric, with a controlled volatile content of less than 1%. The mass content of epoxy matrix resin is 37% -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 ...

Prepreg is an intermediate substrate for preparing composite materials, and its quality directly affects the quality of composite components. The production processes of prepreg mainly include solution impregnation method and hot melt method. Compared to the solution method, the hot melt method has the following advantages:1. Accurate control of resin content in the prepreg;2. Low volatile content;3. Environmental protection and pollution-free environmental issues;4. The composite material produ ...

Product Name: Leveling AgentComposition: Polyether siloxane copolymerItem No.: SilibaseCP-1331Technical Data:Appearance: Yellow transparent liquidActive substance content: 100%Viscosity (25oC): 200-600CSTDescription:SilibaseCP-1331 Leveling Agent is an organic silicon leveling agent for solvent-free, solvent-based and water-borne coatings and printing ink. It has the ability of moderately reducing surface tension and improving smoothness. Especially recommended for automotive coatings, architect ...

A device for preparing the prepreg as claimed in claim 6, comprising a single sided release paper winding roller shaft (1), a double sided release paper winding roller shaft (2), a product winding roller shaft (3), a single sided release paper winding roller shaft (4), an intermediate roller shaft (5), a third chain transmission mechanism (6), a first shaft (7), a first chain transmission mechanism (8), a second shaft (9), a second chain transmission mechanism (10), and a first gear transmission ...

Product Name: DefoamerItem No.: SilibaseDF-KS66Chemical composition: Polysiloxane compounds containing hydrophobic particlesActive ingredient: 100%Description:SilibaseDF-KS66 defoamer is a highly-safe, oil compound type, silicone by SILIBASE SILICONE. It offers excellent defoaming properties. It exhibits low surface tension, chemical stability and heat- & chemical resistance. SilibaseDF-KS66 defoamer is recommended for paints, coatings, inks and printing industry.Modified Silicone Defoamer K ...

Preparation of prepreg:a. Hang the single-sided release paper onto the single-sided release paper winding roller shaft 1, middle roller shaft 5, and single-sided release paper winding roller shaft 4 in order to form a transmission connection between the single-sided release paper winding roller shaft 1, middle roller shaft 5, and single-sided release paper winding roller shaft 4. Then, hang the double-sided release paper onto the double-sided release paper winding roller shaft 2, middle roller s ...