EVA hot melt adhesive film for wall covering and preparation method thereof

A hot-melt adhesive film and hot-melt adhesive technology, used in adhesives, films/sheets without carriers, monocarboxylate copolymer adhesives, etc., can solve the problems of high technical requirements and difficult work for laminating workers , to achieve the effect of improving water vapor transmission rate, improving water blocking performance, and simple process

Pending Publication Date: 2018-12-07
GUANGDONG POLYTECHNIC OF ENVIRONMENTAL PROTECTION ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this situation, it is more difficult to use liquid glue to fit the seamless wall covering and the wall, and the technical requirements for the fitting workers are higher

Method used

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  • EVA hot melt adhesive film for wall covering and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] 40 parts by weight of ethylene-vinyl acetate copolymer with a VA content of 33wt% and a melting peak temperature of 70°C, and 25 parts of maleic anhydride grafted ethylene-vinyl acetate copolymer with a graft rate of 1.1wt% 25 parts of ethylene-acrylic acid copolymer with AA content of 9.5wt% and peak melting temperature of 97°C, 10 parts of polyolefin copolymer with melt index of 30g / 10min (190°C / 2.16kg) and peak melting temperature of 58°C material, 5 parts of terpene resin, 0.5 part of thiodiethylene bis[3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate] mixed with a high-speed mixer, and extruded Extrude and granulate at 110°C. After drying, put the hot-melt rubber granules into the casting machine, melt and plasticize at 95°C, and make a film with a thickness of 0.2mm EVA hot melt adhesive film.

Embodiment 2

[0033] 50 parts by weight of ethylene-vinyl acetate copolymer with a VA content of 33wt% and a melting peak temperature of 70°C, and 30 parts of maleic anhydride grafted ethylene-vinyl acetate copolymer with a graft rate of 1.3wt% 10 parts of ethylene-acrylic acid copolymer with AA content of 9.5wt% and peak melting temperature of 97°C, 10 parts of polyolefin copolymer with melt index of 30g / 10min (190°C / 2.16kg) and peak melting temperature of 58°C , 10 parts of C9 petroleum resin, 0.8 parts of dioctadecyl pentaerythritol bisphosphite are mixed with a high-speed mixer, extruded and granulated with an extruder at 150 ° C, and after drying, the hot melt rubber particles are put into Casting machine, melting and plasticizing under the condition of 120 ℃, through the process of extrusion, stretching, traction and winding, the EVA hot-melt adhesive film with a film thickness of 0.2mm is obtained.

Embodiment 3

[0035] 60 parts by weight of ethylene-vinyl acetate copolymer with a VA content of 33wt% and a melting peak temperature of 70°C, and 20 parts of maleic anhydride grafted ethylene-vinyl acetate copolymer with a graft rate of 2.1wt% 10 parts of ethylene-acrylic acid copolymer with AA content of 9.5wt% and peak melting temperature of 97°C, 10 parts of polyolefin copolymer with melt index of 30g / 10min (190°C / 2.16kg) and peak melting temperature of 58°C , 20 parts of C9 petroleum resin, 0.2 parts of 3,5-di-tert-butyl-4-hydroxybenzyl diethylphosphonate are mixed with a high-speed mixer, extruded and granulated with an extruder at 120°C, and dried After the treatment, put the hot-melt rubber particles into the casting machine, melt and plasticize at 103°C, and go through the processes of extrusion, stretching, traction, and winding to obtain an EVA hot-melt adhesive film with a film thickness of 0.2mm.

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Abstract

The invention discloses an EVA hot melt adhesive film for wall covering and a preparation method thereof. The EVA hot melt adhesive film for wall covering is prepared from 40-70 parts by weight of ethylene-vinyl acetate copolymer, 15-30 parts of maleic anhydride grafted ethylene-vinyl acetate copolymer, 10-25 parts of ethylene-acrylic acid copolymer, 5-20 parts of polyolefin copolymer, 5-30 partsof tackifier, and 0.2-1 part of antioxidant by premixing and tape casting. The EVA hot melt adhesive film prepared by the invention can quickly bond the wall covering to a wall body, has the characteristics of high adhesion, moisture resistance, mildew resistance and no perishability, and does not contain harmful solvents such as benzene, toluene and xylene; the EVA hot melt adhesive film meets environmental requirements and can replace liquid glue applied to the wall covering bonding. The invention also discloses the preparation method of the EVA hot melt adhesive film for wall covering, andthe method has the advantages of simple process, convenient processing and easy operation.

Description

technical field [0001] The invention relates to the field of hot-melt adhesive films for decorative materials, in particular to an EVA hot-melt adhesive film for wall coverings and a preparation method thereof. Background technique [0002] In recent years, the interior decoration industry has developed rapidly, and the concept of green, environmental protection, and healthy life has become more and more popular. Interior decoration is transforming from paint and wallpaper to wall coverings. Traditional wall covering adhesives are usually two types of liquid glue, one is petrochemical glue made from low molecular weight compounds as the main raw material, and the other is starch glue made from natural plant extracts as the main raw material . These two types of liquid glues both have good initial adhesion properties, but there are also defects. For example, petrochemical glues are prone to release low molecular weight chemicals to pollute the environment, and starch glues a...

Claims

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Application Information

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IPC IPC(8): C09J7/10C09J123/08C09J131/04C09J151/06C09J11/08
CPCC09J7/10C09J11/08C09J123/0853C09J131/04C08L2205/035C08L51/06C08L23/0869C08L23/08Y02E10/50
Inventor 吴建东严迎燕蔡云梅张艳林
Owner GUANGDONG POLYTECHNIC OF ENVIRONMENTAL PROTECTION ENG
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