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 pre ...

Epoxy/glass fiber composite materials have the characteristics of light weight, high strength, large modulus, good corrosion resistance, excellent electrical properties, wide range of raw materials, good processability, simple processing and molding, high production efficiency, and strong material designability and special functionalities such as shielding electromagnetic waves and noise reduction. They have now become irreplaceable important materials in the national economy, national defense c ...

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 ...

The preparation method of the prepreg as claimed in claim 6, characterized in that the preparation method of the prepreg is achieved by the following steps: 1. preparing an epoxy matrix resin: a weighing 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, wherein the curing agent is a complex curing agent of dicyandiamide and ...

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 pre ...

technical fieldThe present invention relates to an epoxy matrix resin, a prepreg, a preparation method thereof, and a device for preparing the prepreg.Background technologyEpoxy/glass fiber composite materials have the characteristics of light weight, high strength, high modulus, good corrosion resistance, excellent electrical properties, wide range of raw materials, good processability, simple processing and molding, high production efficiency, and strong material designability and special func ...

National Day is established to celebrate the establishment of the People's Republic of China, and the date is October 1st every year. This is a solemn national holiday that embodies the spirit of national independence, unity, and progress, and is also a time for people to express love and blessings for their motherland.Mid-Autumn Festival is on the 15th day of the eighth lunar month. It is also known as the festival of sacrificing to the moon, and it is a traditional folk festival in China. Mid- ...

Methylsiliconates (PMS)SilibasePMS-1652 is an aqueous solution of potassium methyl siliconate and SilibasePMS-1652 PMS water repellent is used in diluted form for the hydrophobic impregnation of mineral construction materials to make them water-repellent.SilibasePMS-1652 develops its water-repellent properties by reaction with atmospheric carbon dioxide (CO2). The active substance formed from the silicone masonry water repellent is polymethylsilicic acid.As with all siliconates, however, Silibas ...

Product Name: Silicone ResinItem No.: SilibaseSR-9862CCharacteristics• Ready-to-use, solvent-free• Addition-curing, one-component phenyl silicone resin• Very low content of volatile organic compounds (VOC)• Physiologically inert• Should be processed at max 80°C and is usually cured between 170°C – 200°C• Cures without byproducts• Long-lasting and thermally stable• Once completely cured, fulfills all insulation class H and C requirementsApplicationsSilibaseSR-9862C is used for impregn ...

Product Name: Release AgentItem No.: SilibaseRA-4855Main technical parametersExterior:milkyDensity, (25℃)g/cm3:0.97~0.98Ionicity:NonionicSolid content:53%~55%Adapt to mold temperature:87~185℃Solvent:Deionized watertype:Synthetic esters and resinsDemoulding force, N/100cm2:≤35Recommended dilution ratio:8~18 times (Ionized water is recommended if conditions permit, the specific dilution ratio varies with different products)Description:SilibaseRA-4855 release agent for car headliner and other in ...