High-rigidity high-bonding-strength nylon reinforcing material and preparation method thereof

Abstract

The invention discloses a high-rigidity high-bonding-strength nylon reinforcing material and a preparation method thereof. The high-rigidity high-bonding-strength nylon reinforcing material is prepared from the following components in percentage by weight: 38-59% of PA; 40-60 percent of alkali-free chopped glass fiber; 0.3-1% of an adhesion promoter; and 0.5-1.5% of other auxiliary agents. The high-rigidity high-bonding-strength nylon reinforced material has good mechanical properties and good surface adhesion, and has a wide application prospect in 3C electronic products such as mobile phonesand tablet personal computers.

Description

technical field] [0001] The invention relates to the technical field of polymer materials, a high-rigidity and high-bonding-strength nylon reinforcing material and a preparation method thereof. Background technique] [0002] Rigid components such as front shells and frames of mobile phones, tablets and other products on the market, in order to meet the increasingly thin and full-screen requirements of electronic products, the material modulus, structural strength, dimensional stability, toughness, chemical resistance of the front shell and frame are required. , stress cracking resistance, surface adhesion, etc. have higher requirements, and the structural strength, chemical resistance and stress cracking resistance of ordinary PC fiber-reinforced materials cannot meet the requirements. Nylon glass fiber reinforced materials can meet the requirements of mobile phone front shell and frame on material modulus, structural strength, dimensional stability, chemical resistance, etc...

AI Technical Summary

Problems solved by technology

[0002] Rigid parts such as front shells and frames of mobile phones and tablets on the market, in order to meet the increasingly thin and full-screen requirements of electronic products, the material modulus, structural strength, dimensional stability, toughness, and chemical resistance of the front shells and frames , stress cracking resistance, surface adhesion, etc. have high requirements, and the structural strength, chemical resistance and stress cracking resistance of ordinary PC fiber reinforced materials cannot meet the requirements

Nylon glass fiber reinforced materials can meet the requirements of material modulus, structural strength, dimensional stability, and chemical resistance for the front shell and frame of mobile phones, but the surface adhesion of traditional nylon reinforced materials is insufficient, and the bonding strength with moisture-curing polyurethane hot melt adhesives Not enough to meet increasingly stringent product testing requirements