A kind of aramid fiber reinforced carbon fiber resin prepreg and preparation method thereof
An aramid fiber and carbon fiber technology is applied in the field of aramid fiber reinforced carbon fiber resin prepreg and its preparation. Low cost, improved resin brittleness, and improved toughness
Active Publication Date: 2022-04-12
浙江宝旌炭材料有限公司
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Problems solved by technology
Since the CFRP material is prepared by a multi-layer prepreg through a hot-pressing process, there is a brittle pure epoxy resin connection layer in its structure, resulting in a low interlayer bonding strength and easy delamination of the CFRP structure. Defects such as damage seriously affect the stability and safety of the overall structure
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Embodiment 1
[0040] Preparation of aramid pulp reinforced unidirectional carbon fiber resin prepreg.
[0041] Raw materials: The carbon fiber used is 12K T700 industrial-grade unidirectional carbon fiber filament produced by Toray, Japan. The carbon fiber spreading width is 1m, and the fiber distribution surface density is 150g / m 2 The epoxy resin used is MT3 type epoxy resin produced by Jinggong (Shaoxing) Composite Materials Co., Ltd., the curing temperature is 130°C, and the designed resin distribution surface density is about 80g / m 2 ;The aramid fiber used is Kevlar aramid pulp produced by Dupont in the United States, the fiber length is ≤1mm, and the fiber diameter is ≤1μm; the mass ratio of the components of the prepreg is designed to be: aramid Fiber: 1.25 parts; Epoxy resin: 100 parts; Carbon fiber: 200 parts.
[0042] Preparation method: Take 10wt% epoxy resin component A, mix the same amount of acetone and stir until the resin is completely dissolved, then pour the solution into...
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Abstract
The invention relates to an aramid fiber reinforced carbon fiber resin prepreg and a preparation method thereof. The main components of this product are carbon fiber, epoxy resin, and aramid fiber. First, use acetone as an organic solvent to evenly disperse the aramid fiber in the epoxy resin, and then use a prepreg machine to add the epoxy resin with aramid fiber. Combining with carbon fiber, aramid fiber reinforced carbon fiber resin prepreg is prepared by roll forming process. Compared with ordinary carbon fiber prepregs, the strength, modulus and other mechanical properties of the carbon fiber reinforced resin matrix composite (CFRP) products formed after product lamination and curing have been greatly improved. Enhancing the structural stability and impact resistance of CFRP is of great significance to improve the brittleness of the interlayer resin of CFRP materials and the shortcomings of easy delamination fracture damage.
Description
technical field [0001] The invention relates to the technical field of carbon fiber composites, in particular to an aramid fiber reinforced carbon fiber resin prepreg and a preparation method thereof. Background technique [0002] Carbon fiber reinforced resin matrix composites (CFRP) is a layered composite material prepared by a suitable molding process with carbon fiber or carbon fiber fabric as reinforcement, thermosetting or thermoplastic resin as matrix. It combines the high strength of carbon fiber and the low specific gravity of resin, thus showing excellent comprehensive performance, and is currently one of the most advanced composite materials in the world. [0003] Under the same quality conditions, the strength of CFRP is 10 times that of steel, but its density is 50% lower than steel and 30% lower than aluminum, so its lightweight effect is very obvious. In addition, compared with traditional metal materials, CFRP composite materials also have the advantages of ...
Claims
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IPC IPC(8): C08L63/00C08L77/10C08K7/06C08J5/24C08J5/04
CPCC08J5/24C08J5/047C08J5/046C08J5/042C08J2363/00C08J2477/10C08K7/06
Inventor 胡晓智谭波孙兴祥夏建明杨小兵
Owner 浙江宝旌炭材料有限公司