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Waterproof hot melt adhesive and preparation method thereof

A hot-melt adhesive and water-resistant technology, which is applied in the direction of adhesives, monocarboxylate copolymer adhesives, adhesive types, etc., can solve problems such as high melting point and hardness, limited use, poor strength and elasticity, etc., to achieve Good fluidity, enhanced bonding ability, and improved softening point temperature

Inactive Publication Date: 2013-07-24
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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Embodiment 1

[0013] Embodiment 1: Water-resistant hot melt adhesive, the parts by weight (kg) of its constituent raw materials are: ethylene-vinyl acetate copolymer 55, microcrystalline wax 25, LDPE low-density polyethylene 12, polyvinyl acetate emulsion 28, petroleum wax 15 , mixed powder 30, antioxidant 168 0.8, vinyl tris(β-methoxyethoxy) silane 1.4, sodium lauryl sulfate 1.0, dipropylethanolamine 3.0. 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 water-resistant hot-melt adhesive 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 168°C, the die temperature to 192°C, the screw speed to 52rpm, and the feeding speed to 45rpm. After...

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Abstract

The invention discloses a waterproof hot melt adhesive and a preparation method thereof. The waterproof hot melt adhesive is composed of the following raw materials by weight part: 50-60 of an ethylene-vinyl acetate copolymer, 20-30 of microcrystalline wax, 10-15 of low density polyethylene (LDPE), 25-30 of a polyvinyl acetate emulsion, 14-16 of petroleum wax, 28-32 of mixed powder, 0.7-0.9 of an antioxidant 168, 1.2-1.5 of vinyltris(beta-methoxyethoxy)silane, 0.8-1.2 of sodium lauryl sulfate, and 2.5-3.5 of dipropyl ethanolamine. The hot melt adhesive provided in the invention has a reasonable formula and a simple preparation method. The adding of the petroleum wax and microcrystalline wax in the raw materials raises the softening point temperature of the hot melt adhesive. At the same time, the mixed powder and the polyvinyl acetate emulsion are added to make the hot melt adhesive have increased bonding strength and good fluidity. The waterproof 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 water-resistant hot melt adhesive 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. Contents of the inve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J123/08C09J191/06C09J123/06C09J131/04C09J11/04C09J11/06C09J11/08B29B9/06B29C47/92B29C48/92
CPCB29C48/04B29C48/40B29C48/92B29C2948/9259B29C2948/92885B29C2948/92895
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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