Fiber composite material for sport protection and preparation method thereof

Abstract

The invention provides a fiber composite material for sport protection, and relates to the technical field of composite materials. The fiber composite material for the sport protection is prepared by the following raw materials in parts by weight: 20 to 30 parts of polyurethane urea elastic fibers, 8 to 10 parts of carbon fibers, 800 to 1200 parts of unsaturated polyester resins, 2 to 4 parts of sodium carboxymethylcellulose, 3 to 6 parts of casein glue, 1 to 5 parts of stabilizers, 2 to 4 parts of catalysts and 2 to 4 parts of pigments. The preparation method comprises the following steps: 1), weaving, making polyurethane urea elastic fibers and carbon fibers into a threadlike form, and weaving the threadlike polyurethane urea elastic fibers and carbon fibers into a gridding form; 2), melting, heating the unsaturated polyester resins to be 55 to 65 DEG C, softening for 25 to 35 minutes, adding the pigments and the sodium carboxymethylcellulose, mixing and stirring fully, heating and melting an obtained mixture, and controlling the viscosity at 10000 to 20000CPS under a molten state; (3), immersing; 4), squeezing out; 5), cooling. A product produced by the invention has the advantages of high strength, good elasticity, a good protective effect and light weight, is no prone to smash and has no side effect on a human body.

Description

[0001] Technical field: [0002] The invention relates to the technical field of composite materials, in particular to a fiber composite material for sports protection and a preparation method thereof. [0003] Background technique: [0004] Carbon fiber is a new type of fiber material with high strength and high modulus fiber containing more than 95% carbon. It is a microcrystalline graphite material obtained by stacking organic fibers such as flake graphite microcrystals along the axial direction of the fiber, and undergoing carbonization and graphitization. Carbon fiber is "soft on the outside and rigid on the inside", lighter than metal aluminum, but stronger than steel, and has the characteristics of corrosion resistance and high modulus. It is an important material in national defense and civilian applications. It not only has the inherent intrinsic characteristics of carbon materials, but also has the softness and processability of textile fibers. It is a new generation...

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Problems solved by technology

Moreover, it is necessary to meet the requirements that the tool has certain elasticity, is not easy to break, and must maintain the characteristics of light weight. However, these materials in the prior art are generally ordinary plastic materials with high hardness, and it is necessary to increase the thickness of the plastic material. The soft septum is easy to be broken, and once it hits a hard object, it is easier to split into several pieces, and it will cause damage to the human body, and the required thickness is thicker and the weight is heavier.

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