Thermoplastic elastomer capable of coating and bonding with glass fibre filling reinforced nylon

Abstract

The invention provides a thermoplastic elastomer capable of coating and bonding with a glass fibre filling reinforced nylon, comprising the following raw materials in percentages by weight: 20-40% of matrix resin, 5-45% of softened plasticizer, 15-30% of adhesion promoter, 0-30% of mineral filler, 15-35% of compatilizer, 0-1% of lubricant and 0-2% of stabilizer, wherein the adhesion promoter includes a first adhesion promoter and a second adhesion promoter; the first adhesion promoter is at least one of a polyamide thermosol and a nylon polymer; and the second adhesion promoter is a mixture of a thermoplastic polyurethane elastomer and a polyether block amide copolymer; meanwhile, the invention further provides a method for preparing the elastomer. The elastomer is far higher than contrast products in tensile strength at break, tensile elongation at break and peel strength. The elastomer of the invention has good mechanical property.

Description

technical field [0001] The invention belongs to the field of macromolecular materials, and relates to a thermoplastic elastomer which can be coated and bonded with glass fiber-filled and reinforced nylon and a preparation method thereof. Background technique [0002] Thermoplastic elastomer is a new type of material that combines the excellent properties of thermoplastics and rubber. It can be molded alone, or it can be firmly coated on PP by secondary injection molding or extruder co-extrusion without any binder. , PE, PS, ABS, PC and other plastic materials, so as to make the inner hard polymer skeleton, and the outer layer is a soft elastomer product. Therefore, it is widely used in the handles of households, toys, and various tools to achieve elastic, rigid, and non-slip handles, as well as the functions of heat insulation, shock absorption, damping, and insulation, which can relieve user fatigue. Due to the different raw material formulations and proportions of thermop...

AI Technical Summary

Problems solved by technology

Although the thermoplastic elastomer material is firmly bonded to common nylon, since the tackifier in the elastomer has adopted at least one of nylon polymers and polar resins, if the tackifier adopts nylon polymers, However, there are no other ingredients in the material itself that increase the compatibility of nylon polymers and matrix resins in the formula, resulting in poor physical properties of the final product and a small range of applications; even if polar resins or polar resins and nylon polymers are used The combined technical solution will also lead to the lack of good compatibility of nylon under high glass fiber filling, thereby greatly reducing the bonding effect, or even failing to bond successfully

Images