Carbon fiber and glass fiber hybrid-reinforced sheet moulding compound and manufacturing technology thereof

Abstract

The invention provides a carbon fiber and glass fiber hybrid-reinforced sheet moulding compound and is characterized in that the sheet moulding compound mainly comprises resin paste I, resin paste II and thickening agent; the manufacturing technology of the sheet moulding compound comprises the following steps: the preparation of the resin paste I, the resin paste II and the thickening agent; the mixing of the resin paste I and the thickening agent and that of the resin paste II and the thickening agent; and impregnation: the resin paste I and chopped carbon fiber, and the resin paste II and chopped glass fiber are impregnated on an SMC (Sheet Molding Compound) machine set respectively, the impregnated chopped glass fiber is uniformly placed on the impregnated chopped carbon fiber, and then the impregnated chopped glass fiber and the impregnated chopped carbon fiber are composited by pressure through a compacting machine to manufacture a carbon fiber and glass fiber hybrid sheet material which is wound or packaged in a box through the compacting machine and then is subject to slaking treatment; and after the slaking treatment, the carbon fiber and glass fiber hybrid sheet material is made into a finished sheet moulding compound product through mould pressing. The sheet moulding compound has a low cost and a low manufacturing cost, can meet requirements for utilization, is suitable for industrial production and is simple and applicable.

Description

technical field [0001] The invention relates to a composite material, which is a sheet-shaped molding compound reinforced by mixing carbon fiber and glass fiber and a production process thereof. Background technique [0002] Reinforcing fiber is the most important part of composite material, its function is to make the composite material have certain physical strength and toughness, so that the material can withstand mechanical effects such as stretching, shearing, and impact. Although carbon fiber composite materials have the advantages of high elastic modulus, high heat resistance, and low density, carbon fiber is not only expensive, but also the processing cost of carbon fiber composite materials is high. Although alkali-free and untwisted glass fiber has the characteristics of good dispersibility, good clustering, good cutting ability, good impregnation, and low price, its performance is far inferior to carbon fiber composite materials. Therefore, choosing several kinds...

AI Technical Summary

Problems solved by technology

In the current industry, when producing products, there are also methods of mixing carbon fiber prepregs and glass fiber prepregs between layers and within layers, that is, making a single prepreg first, and then laying up hybrid layers. However, this method is subject to The limitation of radial and weft fiber fabrics does not flow in the mold, and only products similar to flat plates can be manufactured

So far, there have been no reports and applications of carbon fiber and glass fiber hybrid reinforced sheet molding compound and its production process.