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Hot melt adhesive membrane for reaction type wall cloth and preparation method thereof

A hot melt adhesive film, reactive technology, used in adhesives, films/sheets without carriers, non-polymer adhesive additives, etc. and other problems, to achieve the effect of fast bonding, lasting and stable bonding, and easy construction

Inactive Publication Date: 2018-10-19
GUANGDONG POLYTECHNIC OF ENVIRONMENTAL PROTECTION ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the traditional hot melt adhesive mainly relies on van der Waals force to bond with the substrate, the bonding strength is insufficient, and it is easily affected by temperature. Especially under high temperature conditions, the bond with the substrate is easy to fail, and the heat resistance is not good.

Method used

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  • Hot melt adhesive membrane for reaction type wall cloth and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] 30 parts by weight of maleic anhydride grafted ethylene-vinyl acetate copolymer with a graft rate of 1.1wt%, 40 parts of ethylene-vinyl acetate copolymer with a VA content of 33wt% and a melting peak temperature of 70°C 30 parts of ethylene-acrylic acid copolymer with AA content of 15wt% and melting peak temperature of 90°C, 1.1 parts of tert-butylperoxy-3,5,5-trimethylhexyl ester, 0.5 parts of tetraallyloxy Ethane, 0.8 parts of maleic anhydride with a purity of 99.5% and a melting point of 53°C, and 0.8 parts of dioctadecylpentaerythritol bisphosphite were put into a high-speed mixer for mixing, and extruded at 95°C with an extruder to produce After drying, put the hot-melt rubber granules into the casting machine, melt and plasticize at 98°C, and make a hot-melt adhesive with a film thickness of 0.2mm through the processes of extrusion, stretching, traction, and winding. membrane.

Embodiment 2

[0037] 40 parts by weight of maleic anhydride grafted ethylene-vinyl acetate copolymer with a graft rate of 1.5wt%, 40 parts of ethylene-vinyl acetate copolymer with a VA content of 33wt% and a melting peak temperature of 70°C 20 parts of ethylene-acrylic acid copolymer with AA content of 15wt% and peak melting temperature of 90°C, 0.9 parts of 1,1-di-tert-butylperoxycyclohexane, 0.8 parts of vinyltrimethoxyethoxysilane , 0.4 parts of maleic anhydride with a purity of 99.5% and a melting point of 53°C, 0.2 parts of 3,5-di-tert-butyl-4-hydroxybenzyl diethyl phosphonate, put them into a high-speed mixer for mixing, and extruded The extruder is extruded and granulated at 97°C. After drying, the hot-melt rubber granules are put into the casting machine, melted and plasticized at 101°C, and the film is obtained through the processes of extrusion, stretching, traction, and winding. Hot melt adhesive film with a thickness of 0.2mm.

Embodiment 3

[0039] 20 parts by weight of maleic anhydride grafted ethylene-vinyl acetate copolymer with a graft rate of 2.2wt%, 50 parts of ethylene-vinyl acetate copolymer with a VA content of 33wt% and a melting peak temperature of 70°C 30 parts of ethylene-acrylic acid copolymer with AA content of 15wt% and melting peak temperature of 90°C, 0.6 parts of 1,1-di-tert-butylperoxycyclohexane, 1.2 parts of diallyl maleate, 0.7 Parts of maleic anhydride with a purity of 99.5% and a melting point of 53°C, 0.7 parts of 3,5-di-tert-butyl-4-hydroxybenzyl diethylphosphonate, put into a high-speed mixer for mixing, and use an extruder Extrude and granulate at 99°C. After drying, put the hot-melt rubber granules into the casting machine, melt and plasticize at 105°C, and make a film with a thickness of 0.2mm hot melt adhesive film.

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Abstract

The invention discloses a hot melt adhesive membrane for reaction type wall cloth and a preparation method thereof. The hot melt adhesive membrane is prepared from the following components in parts byweight: 20 to 40 parts of a maleic anhydride grafted ethylene-vinyl acetate copolymer, 40 to 60 parts of an ethylene-vinyl acetate copolymer, 20 to 40 parts of an ethylene-acrylic acid copolymer, 0.2to 1.1 parts of a free radical thermal initiator, 0.5 to 1.5 parts of a crosslinking agent, 0.2 to 0.8 part of maleic anhydride and 0.2 to 1 part of an antioxidant; the components are extruded and granulated and then is further subjected to tape casting. After the hot melt adhesive membrane for the reaction type wall cloth, disclosed by the invention, is heated, gel is melted and is subjected tocrosslinking reaction; on the basis of original physical adhesion, an adhesion force is further improved, so that the adhesion between the wall cloth and a wall body is lasting and stable; the hot melt adhesive membrane for the reaction type wall cloth has the advantages of uniform thickness, simple adhesion technology, greenness and environment protection, no pollution and the like.

Description

technical field [0001] The invention relates to the field of hot-melt adhesive films for decorative materials, in particular to a reactive hot-melt adhesive film for wall coverings and a preparation method thereof. Background technique [0002] Wall cloth is a kind of indoor wall decoration material. With the change of people's life philosophy, wall coverings are gradually replacing the paint and wallpaper used in traditional interior decoration. [0003] The traditional wall covering bonding process needs to use "cold glue" to bond the wall. "Cold glue" refers to glue used at room temperature, while "cold glue" for wall coverings is generally prepared from ready-made liquid glue or natural plant extracts prepared by chemical reagents. "Cold glue" for wall coverings has excellent bonding performance and flexible applicability, but there are also defects. For example, when "cold glue" is applied to seamless wall coverings, due to the overall construction, there will be leak...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/10C09J4/06C09J11/06
CPCC09J4/06C09J7/10C09J11/06
Inventor 吴建东蔡云梅严迎燕张艳林
Owner GUANGDONG POLYTECHNIC OF ENVIRONMENTAL PROTECTION ENG
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