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PA6 based hot melt adhesive and preparation method thereof

A hot-melt adhesive and raw material technology, applied in the direction of adhesives, adhesive additives, non-polymer adhesive additives, etc., can solve the problems of use limitation, poor strength and elasticity, high melting point and hardness, and improve the bonding ability, Improved softening point temperature and good fluidity

Inactive Publication Date: 2015-03-04
马鞍山市中澜橡塑制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Embodiment 1: The hot-melt adhesive with PA6 as the main material, the parts by weight (kg) of its raw materials are: PA6 45, polycarbonate 25, metallocene linear low density polyethylene resin 25, sodium diacetate 20, polyethylene Wax 24, wollastonite powder 45, 2,6-di-tert-butyl-4-(dimethylaminomethyl)phenol 2.4, anilinomethyltriethoxysilane 1.5, dioctyl maleate 0.4, mixed Powder 1.4. The mixed powder is prepared by mixing cotton fiber powder, polypropylene fiber powder, iron powder, wood fiber powder and paper pulp powder in equal parts by weight.

[0014] The preparation method of the hot-melt adhesive with PA6 as main material comprises the following steps:

[0015] (1) Mix the raw materials evenly to obtain the mixed materials;

[0016] (2) Put the material into the co-rotating parallel combined twin-screw extruder to extrude and granulate. Set the barrel heating temperature to 178°C, the die temperature to 215°C, the screw speed to 75rpm, and the feeding speed ...

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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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J177/02C09J169/00C09J123/08C09J11/04B29C47/92B29B9/06B29C48/92
CPCB29C47/92B29C48/04B29C48/92B29C2948/9259B29C2948/92704B29C2948/92828B29C2948/92885B29C2948/92895
Inventor 陈贤锋阚蕾申大伟沈根骆敏申丽霞陈玉娟沈春花沈红梅
Owner 马鞍山市中澜橡塑制品有限公司
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