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EVA edge-sealing hot melt adhesive with no adhesive line and low adhesive coating amount and preparation method of EVA edge-sealing hot melt adhesive

A technology of glue coating amount and hot melt adhesive, which is used in adhesives, photovoltaic power generation, adhesive additives, etc., can solve the problems of affecting the appearance of furniture, lowering the grade of furniture, inconsistent color of edge banding, etc., achieving light weight and reducing glue coating. Good quantity and bonding strength

Active Publication Date: 2020-11-17
上海路嘉胶粘剂有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As the domestic and foreign markets have higher and higher requirements for furniture grades, when the furniture is edge-banded, the colors of the edge-banding materials and the veneer materials of the panels are various, such as white, brown, black, yellow, etc. , is inconsistent with the color of the edge banding adhesive, which will cause the color of the adhesive layer of the edge banding adhesive to be inconsistent with the color of the edge banding strip, forming black or white lines, which will seriously affect the appearance of the furniture and reduce the grade of the furniture

Method used

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Examples

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Effect test

preparation example Construction

[0063] Second aspect of the present invention provides the preparation method of the EVA edge-sealing hot-melt adhesive without glue line, low glue amount, and described preparation method comprises the following steps:

[0064] Add viscosity modifier and ethylene-vinyl acetate copolymer into the reaction kettle, heat it, and when the temperature is 80-110°C, turn on the turntable of the reaction kettle until the above raw materials are completely dissolved; put in antioxidant to keep the temperature of the material at 130-160°C ℃, until it dissolves evenly, add tackifying resin, petroleum resin, filler and stir evenly, after the raw materials are completely dissolved, keep it for 30-50min, then cool down to 125-150℃, and the material is ready to use.

[0065] In a preferred embodiment, the preparation method of the EVA edge-sealing hot-melt adhesive without glue line and low amount of glue of the present invention comprises the following steps:

[0066] Add viscosity modifier...

Embodiment 1

[0072] A kind of EVA edge-sealing hot-melt adhesive with no glue line and low amount of glue is provided. In parts by weight, the preparation raw materials include: 36 parts of ethylene-vinyl acetate copolymer, 23 parts of petroleum resin, 6 parts of tackifying resin, viscosity 7 parts of regulator, 30 parts of filler, 0.03 part of antioxidant.

[0073] The ethylene-vinyl acetate copolymer is commercially available, the brand name is DuPont 4455, and the content of vinyl acetate is 25 wt%.

[0074] The petroleum resin is C5 hydrogenated petroleum resin.

[0075] The tackifying resin is rosin resin.

[0076] The viscosity modifier is polyethylene wax, which is commercially available from Ninghai Boer Chemical Co., Ltd., and whose brand name is BR-1.

[0077] The filler is a combination of calcium carbonate and titanium dioxide, wherein the mass ratio of calcium carbonate and titanium dioxide is 3:1.

[0078] The preparation method of the EVA edge-sealing hot-melt adhesive wi...

Embodiment 2

[0081]Provided is an EVA edge-sealing hot-melt adhesive with no glue line and low amount of glue applied. In parts by weight, the preparation raw materials include: 25 parts of ethylene-vinyl acetate copolymer, 15 parts of petroleum resin, 2 parts of tackifying resin, viscosity 5 parts of regulator, 20 parts of filler, 0.01 part of antioxidant.

[0082] The ethylene-vinyl acetate copolymer is commercially available, the brand name is DuPont 4455, and the content of vinyl acetate is 25 wt%.

[0083] The petroleum resin is C5 hydrogenated petroleum resin.

[0084] The tackifying resin is rosin resin.

[0085] The viscosity modifier is polyethylene wax, which is commercially available from Ninghai Boer Chemical Co., Ltd., and whose brand name is BR-1.

[0086] The filler is a combination of calcium carbonate and titanium dioxide, wherein the mass ratio of calcium carbonate and titanium dioxide is 3:1.

[0087] The preparation method of the EVA edge-sealing hot-melt adhesive wi...

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Abstract

The invention relates to the technical field of hot melt adhesives, in particular to an EVA edge-sealing hot melt adhesive with no adhesive line and low adhesive coating amount and a preparation method of the EVA edge-sealing hot melt adhesive. The EVA edge-sealing hot melt adhesive is prepared from, by weight, at least 25-45 parts of ethylene-vinyl acetate copolymer, 15-30 parts of petroleum resin, 2-10 parts of tackifying resin, 5-10 parts of viscosity modifier, 20-55 parts of filler and 0.01-0.05 part of antioxidant. The hot melt adhesive provided by the invention has the advantages of goodstrength, thin adhesive layer, adhesive saving, good flexibility of the adhesive layer, environmental protection, no harmful substances such as formaldehyde and toluene, no phthalate, no heavy metalsand the like, and compared with the color of a plate and a furniture edge banding, the adhesive line cannot be seen, and the effect of no stranded line is achieved.

Description

technical field [0001] The invention relates to the technical field of hot-melt adhesives, in particular to an EVA edge-sealing hot-melt adhesive with no glue line and low glue coating amount and a preparation method thereof. Background technique [0002] With the promotion and implementation of national industrial manufacturing 4.0, China's domestic intelligent manufacturing is developing rapidly. Traditionally, the furniture industry is a labor-intensive industry with a large number of workers, a lot of manual work, and a low degree of automation. Some large domestic furniture factories and wooden door factories Responding to the government's call and keeping up with the development of the world's manufacturing industry, a new factory has been established in accordance with the standards of Industry 4.0, which has greatly improved the production efficiency of the furniture industry and reduced labor costs, thereby reducing the entire furniture manufacturing cost. [0003] ...

Claims

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Application Information

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IPC IPC(8): C09J123/08C09J11/08C09J11/04
CPCC09J123/0853C09J11/08C09J11/04C08L2205/035C08K2003/265C08K2003/2241C08L57/02C08L93/04C08L23/06C08K3/26C08K3/22Y02E10/50
Inventor 凌万青
Owner 上海路嘉胶粘剂有限公司
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