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Method for preparing hot melt adhesive

A hot-melt adhesive, high-speed heating technology, applied in the direction of adhesives, epoxy resin adhesives, adhesive types, etc. The effect of strong relay, fast production speed and small equipment investment

Inactive Publication Date: 2012-09-05
成都鑫三洋科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the existing hot-melt adhesives for cables have weak adhesion, high melt viscosity, large equipment investment, and slow production speed, which cannot meet the needs of bonding cables.

Method used

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Examples

Experimental program
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Embodiment Construction

[0021] According to one embodiment of the present invention, the hot-melt adhesive is formed by mixing the following materials in parts by mass, 5 parts of EVA; 2 parts of rosin resin; 2 parts of wax; 3 parts of low-molecular polyolefin; 0.5 part of phenolic antioxidant; 0.5 parts of DCHP; the EVA contains 30% vinyl acetate monomer; the softening point of the rosin resin is 100° C.; the wax is a microcrystalline wax with a molecular weight of 3000 and a melting point of 65° C.

[0022] According to one embodiment of the present invention, it is formed by mixing the following materials in parts by mass, 8 parts of EVA; 4 parts of rosin resin; 4 parts of wax; 4 parts of low molecular polyolefin; 1.5 parts of phenolic antioxidant; 1.5 parts of DCHP; The EVA contains 35% vinyl acetate monomer; the rosin resin has a temperature of 110°C; the wax is a microcrystalline wax with a molecular weight of 4000 and a melting point of 85°C.

[0023] According to one embodiment of the present...

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Abstract

The invention discloses a method for preparing hot melt adhesive. The method comprises the steps of: mixing EVA (ethylene-vinyl acetate), a tackifier and a diluent according to parts by weight, and then heating, stirring, smelting and cooling the mixture. The hot melt adhesive comprises 5-10 parts of EVA, 2-6 parts of a tackifier, 5-10 parts of a diluent, 0.5-1.5 parts of an antioxidant and 0.5-1.5 parts of a plasticizer; the tackifier is one of abietic resin, petroleum resin, terpene resin, phenolic resin and epoxy resin; the diluent is one or two of wax and micro-molecular polyolefin; and the antioxidant is a phenolic antioxidant; and the plasticizer is DCHP (dicyclohexylphthalate). The stirring speed is 200-750 rpm; the heating temperature is 200-400 DEG C; and the cooling temperature is 10-25 DEG C.

Description

technical field [0001] The embodiment of the invention relates to a hot melt adhesive and a preparation method thereof. Background technique [0002] Hot-melt adhesive is a kind of plastic adhesive. Its physical state changes with temperature within a certain temperature range, but its chemical properties remain unchanged. It is non-toxic and tasteless. It is an environmentally friendly chemical product. Hot-melt adhesives have been used in many domestic industries. Wide application, the cable manufacturing industry also uses hot-melt tape or hot-melt adhesive film to wrap around the parts of the cables that need to be bonded, and melts after heating to play the role of bonding. The existing hot-melt adhesives for cables have weak bonding force, high melt viscosity, large equipment investment, and slow production speed, which cannot meet the needs of bonding cables. Contents of the invention [0003] The present invention aims to solve the above-mentioned defects of the p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J123/08C09J193/04C09J157/02C09J145/00C09J161/06C09J163/00C09J11/06
Inventor 曾维松
Owner 成都鑫三洋科技发展有限公司
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