A kind of carbon fiber reinforced thermosetting resin matrix composite material and preparation method thereof

Abstract

The invention discloses a carbon fiber reinforced thermosetting resin-based composite material and a preparation method thereof, belonging to the technical field of advanced composite materials. The preparation method of the invention is as follows: firstly, a matrix resin, a low shrinkage agent, a curing agent, a polymerization inhibitor, an internal mold release agent, a thickening agent and a dispersing aid are sampled and mixed uniformly according to the mass ratio to obtain a resin paste; The carbon fiber non-woven fabric is prepared into a sheet-like carbon fiber prepreg by a sheet-like molding compound process; the sheet-like carbon fiber prepreg is laid flat and superimposed, vacuum hot-pressed, and the mold is closed; That is, the carbon fiber reinforced thermosetting resin matrix composite material is obtained. The invention has the characteristics of simple process, short production cycle, low energy consumption, designable strength and modulus, easy large-area molding, and can meet the molding requirements of products with complex shapes and structures, and the like, and the prepared composite material has high strength and modulus. High, light weight, isotropic and other excellent properties.

Description

technical field

[0001] The invention relates to the field of advanced composite materials, in particular to a carbon fiber reinforced thermosetting resin-based composite material and a preparation method thereof. Background technique

[0002] With the rapid development of the automobile industry and the country's gradual emphasis on environmental protection issues, vehicle lightweighting has become the common development goal of the industry. Carbon fiber composite materials combine many excellent properties such as light weight, high strength, high specific modulus, heat resistance, corrosion resistance, and strong designability. Especially in terms of automotive lightweight, resin-based composite materials are 50% lighter than steel materials. , which is 30% lighter than aluminum, and is an ideal automotive lightweight material (Yin Mingxun, Liu Ying, Qiao Xin. Resin-based composite materials and automotive lightweighting [J]. Automotive Engineer, 2019(01): 16-19 .).) ...

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