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Formaldehyde-free adhesive for sheets

A technology of adhesives and formaldehyde, which is applied in the field of formaldehyde-free adhesives for boards, can solve the problems of affecting the use effect, weak adhesion, insufficient strength, etc., and achieve the effect of no damage to the human body, not easy to degumming, and easy to obtain materials

Inactive Publication Date: 2017-03-08
重庆市开州区庆宁木业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, most woodworking adhesives use white latex. In actual use, the strength is not enough. After a long time, it is easy to degumming, the adhesion is not strong, and it is not water-resistant and easy to absorb moisture. If there is water penetration and immersion in furniture, etc. It will be degummed and affect its use effect

Method used

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Examples

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Embodiment Construction

[0011] The present invention will be further described below in conjunction with the examples, but not as a basis for limiting the present invention.

[0012] The formaldehyde-free adhesive is used for the plate of this embodiment, and the adhesive raw material includes the following components by weight: 0-500 parts of epoxy resin, 1-200 parts of paraffin emulsion, 1-300 parts of white latex, and 1 part of curing agent. -200 parts, 0-400 parts of starch mixture, wherein the starch mixture is prepared from starch and water at a ratio of 1:40, and the starch is one or more of corn starch, glutinous rice starch or wheat starch Mixture: Paraffin wax emulsion is used, because the paraffin particles are small in size, it can naturally penetrate into the interior of the wood board, and the waterproof effect can be achieved after drying, so that the wood board has water resistance;

[0013] The adhesive is prepared by dissolving the above-mentioned raw materials in an organic solvent...

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Abstract

The invention discloses a formaldehyde-free adhesive for sheets. The adhesive comprises the following components in parts by weight: 0 to 500 parts of epoxy resin, 1 to 200 parts of paraffin emulsion, 1 to 300 parts of white latex, 1 to 200 parts of curing agent, and 0 to 400 parts of starch mixed solution; wherein the starch mixed solution is prepared from starch and water according to a ratio of parts by weight of 1:40, and the starch is one or more of corn starch, glutinous rice starch, and wheat starch. The adhesive (jelly like substance) is prepared by dissolving abovementioned raw materials into an organic solvent. Through the cooperative gluing effect of epoxy resin and white latex, the bonding strength is enhanced, degumming is difficult to happen for a long term; due to the adhering effect of starch mixture, the adhering effect of epoxy resin and white latex is enhanced, the overall bonding force is further strengthened; moreover, the raw materials are easily available, the cost is low; furthermore, the adhesive strength is strong, no formaldehyde exists, the environment protection effect is good, and the adhesive is harmless to human body.

Description

technical field [0001] The invention relates to the field of adhesives, in particular to a formaldehyde-free adhesive for boards. Background technique [0002] At present, most woodworking adhesives use white latex. In actual use, the strength is not enough. After a long time, it is easy to degumming, the adhesion is not strong, and it is not water-resistant and easy to absorb moisture. If there is water penetration and immersion in furniture, etc. It will be degummed and affect its use effect. [0003] Therefore, it is necessary to improve the adhesive for boards, which not only improves its bonding strength, prevents degumming, but also makes it have better water resistance to achieve a waterproof effect, while ensuring that its volatilization is harmless to the human body. Contents of the invention [0004] In view of this, the present invention provides a formaldehyde-free adhesive for boards, which not only improves its bonding strength, prevents degumming, but also ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J163/00C09J191/06C09J131/04C09J103/02
Inventor 唐武群
Owner 重庆市开州区庆宁木业有限公司
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