Manufacturing method of carbon fiber reinforced damping and buffering material based on microcellular foaming technology

Abstract

The invention discloses a manufacturing method of a carbon fiber reinforced damping and buffering material based on a microcellular foaming technology. The damping and buffering material comprises a PET film and a foaming material arranged on a base material. The foaming material comprises the following raw materials: a waterborne polyurethane emulsion, waterborne polyacrylate, carbon fibers, a foam stabilizer, a foaming agent, sodium polyacrylate, polyethylene glycol, ammonia water, isopropanolamine, a catalyst, a cross-linking agent and a thickening agent. The waterborne polyurethane emulsion and the waterborne polyacrylate are limited as main raw materials, the other components and the foaming ratio of the foaming material are limited, so that uniformly distributed bubbles are formed inthe foaming material, the closed-cell rate of the bubbles reaches 80% or above, the prepared material has good shock absorption and shock avoidance functions, and can be used for dust prevention sealing, shock absorption buffering, elastic supporting and the like of electronic products.

Description

technical field [0001] The invention belongs to the field of preparation of shock-absorbing buffer materials, and in particular relates to a method for manufacturing carbon fiber-reinforced shock-absorbing buffer materials based on microcellular foaming technology. Background technique [0002] Polyurethane foam is usually obtained by polymerizing isocyanate and polyol, and the prepared foam material usually forms multiple cells of different sizes because of its small compression residual deformation, high energy absorption and extremely With good cushioning performance, it is often used as cushioning material, sound-absorbing material, etc., and is widely used in technical fields such as electronics, electricity, digital and communication. [0003] When polyurethane foam is used as the base material of foam tape for shock-absorbing and buffering materials, the density is often used to measure the performance of polyurethane foam. In general, the greater the cell density, th...

AI Technical Summary

Problems solved by technology

The existing polyurethane foam is formed by the polymerization of isocyanate and polyol. During the polymerization of isocyanate and polyol, due to the unreasonable control of stirring uniformity, temperature and time, etc., the internal structure of the material is defective, so that the polyurethane foam often appears The phenomenon of low density or uneven density leads to poor resilience, which will affect the shock absorption and buffer performance of the foam tape prepared with polyurethane foam as the base material, and will also lead to problems such as poor thermal conductivity and insufficient friction resistance. needs to be further improved