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Demoulding composition system for preparing polyisocyanate adhesive artificial board and process for preparation thereof

A technology of polyisocyanic acid and composition, which is applied in the direction of lubricating composition, application, petroleum industry, etc., can solve the problem of reducing the adhesive performance of the adhesive, which is not satisfactory, and achieves the effect of excellent adhesive performance

Active Publication Date: 2004-11-17
WANHUA ECOBOARD INTEGRATED EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, adding wax and fatty acid to isocyanate will cause storage stability problems, and fatty acid can react with polyisocyanate, reducing the adhesive performance of the adhesive
[0005] Other methods to improve the release performance of isocyanate adhesives are mostly directly adding internal release agents to polyisocyanates, which inevitably cause storage stability problems, and these methods are not satisfactory.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] 1. The raw material components of the external release agent and internal release agent of the release composition system

[0020] The raw material component of external mold release agent is: (A) wax emulsion, the mixture of one or two in (B) fatty acid esters, phosphoric acid esters and salts thereof, the weight of wax emulsion in release composition is 20%, the weight of one or two mixtures of fatty acid esters, phosphate esters and their salts is 80% in the release composition; the solid content of the external release agent is 2%; the wax in the wax emulsion It is selected from vegetable waxes, potassium lauryl sulfate in anionic emulsifiers is used as the emulsifier, the copolymerization mixture of oleic acid and butyl acrylate is selected as the fatty acid ester, and di-isooctyl is selected as the phosphate ester (salt).

[0021] The raw material component of internal release agent is: (A) wax emulsion, the mixture of one or two in (B) fatty acid esters, phosphor...

Embodiment 2

[0045] 1. The raw material components of the external release agent and internal release agent of the release composition system

[0046] The raw material components of the external mold release agent are: (A) wax emulsion, (B) a mixture of esters or two esters in fatty acid esters, phosphoric acid esters and their salts, the weight of the wax emulsion It is preferably 40% in the mold composition, and the mixture weight of one or both in fatty acid esters, phosphoric acid esters and their salts is preferably 60% in the release composition; the solid content of the external release agent is 19%; the wax in the wax emulsion is selected from synthetic waxes, the emulsifier uses cetyltrimethylammonium chloride as a cationic emulsifier, fatty acid esters are selected from butyl oleate, and phosphate esters (salts) can be selected from two Lauryl Phosphate.

[0047] The raw material components of the internal release agent are: (A) wax emulsion, (B) a mixture of one or two of fatty...

Embodiment 3

[0079] 1. The raw material components of the external release agent and internal release agent of the release composition system

[0080] The raw material components of the external mold release agent are: (A) wax emulsion, (B) a mixture of esters or two esters in fatty acid esters, phosphoric acid esters and their salts, the weight of the wax emulsion It is preferably 30% in the mold composition, and the mixture weight of one or both of fatty acid esters, phosphoric acid esters and their salts is preferably 70% in the mold release composition; the solid content of the external mold release agent 10%; the wax in the wax emulsion is selected from mineral wax, the emulsifier uses non-ionic emulsifier polyoxyethylene carboxylate, fatty acid esters are selected from octyl linoleate, and phosphate esters (salts) can be selected from hexadecyl Phosphate.

[0081] The raw material components of the internal release agent are: (A) wax emulsion, (B) a mixture of one or two of fatty ac...

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Abstract

The invention relates to a demoulding composition system for preparing polyisocyanate adhesive artificial board and process for preparation thereof, wherein the outer releasing agent (or inner releasing agent) comprises (1) wax emulsion, (2) one of fatty acid esters, phosphates and their salts or mixture of two of them, wherein the weight of wax emulsion in the demoulding composition is no greater (less) than 50%, the weigh of one of fatty acid esters, phosphates and their salts or mixture of two of them in the demoulding composition is no less (greater) than 50%. The invention also discloses the process for preparing the outer releasing agent or the inner releasing agent.

Description

1. Technical field [0001] The present invention relates to be used for the release composition system of polyisocyanate glue wood-based panel and preparation technology thereof, more specifically the present invention relates to using polyisocyanate as adhesive to prepare the release agent used in the release composition system of wood-based panel, The external release agent and its preparation process belong to the technical field of chemical preparation products. 2. Background technology [0002] Organic polyisocyanate, as a high-performance and environmentally friendly adhesive, has long been used as an adhesive for lignocellulose-containing materials. It is mainly used in the manufacture of crop straw particleboards such as wheat straw and rice straw, ordinary wood particleboard, oriented strand board, fiberboard and plywood. The adhesive has the characteristics of good bonding performance and no formaldehyde pollution in the product. However, during the pressing proces...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27N3/08C10M137/04
Inventor 杨西红于强孙大琴杨建业朱芸林叶明丁凌
Owner WANHUA ECOBOARD INTEGRATED EQUIP CO LTD
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