A kind of EVA edge-sealing hot-melt adhesive with no glue line and low glue amount and preparation method thereof

A technology of glue application and hot melt adhesive, applied in adhesives, non-polymer adhesive additives, photovoltaic power generation, etc., can solve the problems of inconsistent color of edge banding, affect the appearance of furniture, reduce the grade of furniture, etc., and achieve the goal of reducing coating The effect of glue volume, light specific gravity, and saving glue volume

Active Publication Date: 2022-06-07
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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preparation example Construction

[0063] A second aspect of the present invention provides a method for preparing an EVA edge-sealing hot-melt adhesive with no glue line and low amount of glue, the preparation method comprising the following steps:

[0064] Add viscosity modifier and ethylene-vinyl acetate copolymer into the reaction kettle, heat, when the temperature is 80-110 ℃, 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 ℃ ℃, until the dissolution is uniform, 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 discharge the material.

[0065] In a preferred embodiment, the preparation method of the EVA edge-sealing hot-melt adhesive with no glue line and low glue coating amount according to the present invention comprises the following steps:

[0066] Add viscosity modi...

Embodiment 1

[0072] Provided is an EVA edge-sealing hot-melt adhesive with no glue line and low glue coating amount. 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 conditioner, 30 parts of filler, 0.03 part of antioxidant.

[0073] The ethylene-vinyl acetate copolymer can be obtained commercially under the brand name of DuPont 4455 in the United States, and the content of vinyl acetate is 25% by weight.

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

[0075] The tackifying resin is rosin resin.

[0076] The viscosity modifier is polyethylene wax, which can be obtained commercially. The manufacturer is Ninghai Boer Chemical Co., Ltd., and the 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 preparatio...

Embodiment 2

[0081]Provided is an EVA edge-sealing hot-melt adhesive with no glue line and low glue coating amount. 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 conditioner, 20 parts of filler, 0.01 part of antioxidant.

[0082] The ethylene-vinyl acetate copolymer can be obtained commercially under the brand name of DuPont 4455 in the United States, and the content of vinyl acetate is 25% by weight.

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

[0084] The tackifying resin is rosin resin.

[0085] The viscosity modifier is polyethylene wax, which can be obtained commercially. The manufacturer is Ninghai Boer Chemical Co., Ltd., and the 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...

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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 glue lines and low glue application and a preparation method thereof. In parts by weight, the preparation raw materials at least include: ethylene-vinyl acetate copolymer 25 -45 parts, 15-30 parts of petroleum resin, 2-10 parts of tackifying resin, 5-10 parts of viscosity regulator, 20-55 parts of filler, 0.01-0.05 parts of antioxidant, the hot melt adhesive provided by the invention has strength Good, thin adhesive layer, saving glue, good adhesive softness, hot melt adhesive environmental protection, no formaldehyde, toluene and other harmful substances, no phthalate, no heavy metals, etc., and the color of the board and furniture edge banding In contrast, no glue lines can be seen, and no twisted wires are 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 has developed rapidly. The traditional 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 In response to the government's call and keeping up with the development of the world's manufacturing industry, new factories have been established in full accordance with the standards of Industry 4.0, which has greatly improved the production efficiency of the furniture industry, reduced labor costs, and thus reduced the entire furniture manufacturing cost. [0003]...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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