PA6 based hot melt adhesive and preparation method thereof

Abstract

The invention discloses a PA6 based hot melt adhesive and a preparation method thereof. The hot melt adhesive comprises the following raw materials by weight part: 40-50 of PA6, 20-30 of polycarbonate, 20-30 of metallocene linear low density polyethylene resin, 18-22 of sodium diacetate, 23-25 of polyethylene wax, 40-50 of wollastonite powder, 2.3-2.5 of 2, 6-di-tert-butyl-4-(dimethylaminomethyl)phenol, 1.0-2.0 of anilinemethyltriethoxysilane, 0.3-0.5 of dioctyl maleate, and 1.3-1.5 of mixed powder. The hot melt adhesive provided in the invention has a reasonable formula, takes PA6 as a main material, and has a low price and good performance. The adding of the polyethylene wax in the raw materials raises the softening point temperature of the prepared hot melt adhesive. Meanwhile, the adding of the wollastonite powder increases the bonding strength of the hot melt adhesive, which can have good fluidity. The hot melt adhesive disclosed in the invention has the advantages of environmental protection, safety, weatherability and low cost.

Description

technical field [0001] The invention relates to the field of polymer material processing, in particular to a hot melt adhesive with PA6 as the main material and a preparation method thereof. Background technique [0002] Hot melt adhesive is a solvent-free solid adhesive with thermoplastic resin as the main component. Because hot melt adhesive has fast bonding speed, non-toxicity, simple bonding process and good bonding strength and flexibility, etc. Advantages, it can bond various materials such as wood, paper, fiber, metal, plastic stools, and has a wide range of applications, especially in the fiber industry, packaging industry and binding industry, but most hot melt adhesives are used Polyester, polyamide and other hot-melt resins, due to the poor strength and elasticity of polyester hot-melt adhesives, can not withstand too much external force, and because of the high melting point and hardness of polyamide hot-melt adhesives, so in use aspects are restricted. Conten...

AI Technical Summary

Problems solved by technology

[0002] Hot melt adhesive is a solvent-free solid adhesive with thermoplastic resin as the main component. Because hot melt adhesive has fast bonding speed, non-toxicity, simple bonding process and good bonding strength and flexibility, etc. Advantages, it can bond various materials such as wood, paper, fiber, metal, plastic stools, and has a wide range of applications, especially in the fiber industry, packaging industry and binding industry, but most hot melt adhesives are used Polyester, polyamide and other hot-melt resins, due to the poor strength and elasticity of polyester hot-melt adhesives, can not withstand too much external force, and because of the high melting point and hardness of polyamide hot-melt adhesives, so in use Restricted