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Improved plywood adhesive

An adhesive and plywood technology, applied in the direction of adhesives, adhesive types, polyether adhesives, etc., can solve the problems of low bonding strength, easy to mildew in case of moisture, and achieve excellent environmental performance, low volatile organic compounds, and technology. High stability effect

Inactive Publication Date: 2015-04-01
QINGDAO LAOXIANG TEA PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, starch adhesives have disadvantages such as low bonding strength and easy mildew when exposed to moisture, which limits the application in the bonding of wood products.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] The invention is an improved plywood adhesive, which is made of the following raw materials in parts by weight:

[0011] 2.5 parts of talcum powder, 4.5 parts of high molecular weight thermoplastic resin, 1.5 parts of branched alcohol polyoxyethylene ether, 2.5 parts of starch, 2.3 parts of polyether polyol, 0.3 part of propyl starch ether, 2 parts of sodium metaborate and modified tree ash 0.5 servings.

Embodiment 2

[0013] The invention is an improved plywood adhesive, which is made of the following raw materials in parts by weight:

[0014] 4 parts of talcum powder, 8 parts of high molecular weight thermoplastic resin, 2.7 parts of branched alcohol polyoxyethylene ether, 6 parts of starch, 4.2 parts of polyether polyol, 1.2 parts of propyl starch ether, 3.5 parts of sodium metaborate and modified tree ash 0.9 servings.

Embodiment 3

[0016] The invention is an improved plywood adhesive, which is made of the following raw materials in parts by weight:

[0017] 3.2 parts of talcum powder, 5.2 parts of high molecular weight thermoplastic resin, 2.4 parts of branched alcohol polyoxyethylene ether, 5.2 parts of starch, 3.3 parts of polyether polyol, 0.7 part of propyl starch ether, 2.4 parts of sodium metaborate and modified tree ash 0.6 parts.

[0018] Compared with the existing adhesives, the present invention can be implemented on conventional adhesive production equipment without additional investment in processing equipment; the preparation process of the present invention is simple, the reaction conditions are mild, and the process stability is high; the main raw materials used are cheap Moreover, renewable starch does not release toxic and harmful gases, and has good environmental coordination; compared with ordinary white latex, this adhesive has lower total volatile organic compounds and better environ...

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Abstract

The invention discloses an improved plywood adhesive. The adhesive is prepared from the following raw materials in parts by weight: 2.5-4 parts of talcum powder, 4.5-8 parts of high molecular weight thermoplastic resin, 1.5-2.7 parts of branched alcohol ethoxylates, 2.5-6 parts of starch, 2.3-4.2 parts of polyether polyol, 0.3-1.2 parts of propyl starch ether, 2-3.5 parts of sodium metaborate and 0.5-0.9 part of modified tree ash. The improved plywood adhesive has the beneficial effects that compared with existing adhesives, the adhesive can be implemented on conventional adhesive production equipment, without extra processing equipment; a method has the advantages of simple preparation process, mild reaction conditions and high process stability; as cheap and renewable starch is adopted as the main raw material, the adhesive does not release toxic and harmful gases and has good environmental harmonization; relative to common white latex, the adhesive has lower content of total volatile organic compounds and better environment-friendliness.

Description

technical field [0001] The invention relates to an improved plywood adhesive, which belongs to the field of building materials. Background technique [0002] As a kind of natural adhesive, starch adhesive has the advantages of light weight, no corrosion, no pollution, easy to obtain raw materials, low price, and convenient use. It is widely used for bonding paper, cotton fabrics, trademarks, etc. However, starch adhesives have disadvantages such as low bonding strength and easy mildew when exposed to moisture, which limits the application in the bonding of wood products. Contents of the invention [0003] Aiming at the deficiencies in the prior art, the technical problem to be solved by the present invention is to provide an improved adhesive for plywood, which has high bonding strength, is not prone to mildew when exposed to moisture, is relatively low in cost, and is environmentally friendly. [0004] In order to solve the above-mentioned technical problems, the technic...

Claims

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Application Information

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IPC IPC(8): C09J201/00C09J171/00C09J103/08C09J11/04C09J11/08
Inventor 王艳丽李洋
Owner QINGDAO LAOXIANG TEA PROD
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