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Adhesive agent preparing method

A technology of adhesives and stabilizers, applied in the direction of adhesive types, ester copolymer adhesives, etc., can solve the problems of mixed liquid loss, complete absorption of mixed liquid, unsatisfactory mechanical strength and waterproof ability of application effect, etc. To achieve a firm bond and increase the dry strength

Inactive Publication Date: 2004-07-07
孙梅 +1
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AI Technical Summary

Problems solved by technology

[0006] Although the mixed solution used as a waterproofing agent in the above binder can improve the waterproofness of the pulp molded cardboard, its mechanical strength is difficult to ensure, and it is difficult to completely absorb the mixed solution on the paper fibers only by polyacrylamide retention. It will inevitably cause the mixed liquid to be lost with the wastewater discharge
[0007] In short, the application effects of the above two adhesives, especially the mechanical strength and waterproof ability, are not ideal.

Method used

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Examples

Experimental program
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Embodiment

[0027] Embodiment: 1 part by weight of this embodiment is calculated as 10 kg.

[0028] Preparation of Adhesive Latex:

[0029] Component 1: Take 50 parts by weight of cationic reactive emulsifier, 110 parts by weight of deionized water, 10 parts by weight of butyl acrylate / isooctyl acrylate, 10 parts by weight of vinyl acetate, 1 part by weight of hydrogen peroxide (27%), OP -10 0.5 parts by weight.

[0030] First, 80 parts by weight of cationic reactive emulsifier and deionized water were added to the reactor, and 0.5 parts by weight of butyl acrylate / isooctyl acrylate and vinyl acetate were respectively added under nitrogen protection, and 0.1 part by weight of hydrogen peroxide was added to trigger During the polymerization reaction, 0.5 parts by weight of nonionic surfactant OP-10 was added simultaneously to prevent the polymer from sticking to the reactor. After 20 minutes, when the reaction temperature is kept at 70°C, 9.5 parts by weight of each of butyl acrylate / iso...

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Abstract

A process for preparing the adhesive used to making die pressed paper board with used paper pulp includes such steps as copolymerization of acrylate, vinyl acetate, cationic emulsifier, deionized water and H2O2 to obtain emulsion, proportionally mixing it with cationic polyamide and epoxy chloropropane to obtain colloid, adding ionic starch and water, heating while stirring and adding the aqueous solution of ammonium sulfate, and diluting.

Description

technical field [0001] The invention belongs to an adhesive, in particular to a preparation method of an adhesive used for manufacturing molded cardboard from waste paper pulp. Background technique [0002] Based on the principle of making full use of renewable resources, there is a related prior art for making molded cardboard from waste paper pulp and then using it in packaging materials. The performance of the adhesives used in the manufacture of pulp molded boards is crucial to achieve the mechanical strength and water resistance required for packaging or decorative materials. [0003] Known adhesives for recycling waste paper to make molded cardboard are made of acid-modified starch (to increase adhesion and dry strength), water-soluble resins (to promote dry mechanical strength) such as polyvinyl acetate, waterproof A mixture of modifiers (to improve the waterproof performance of the board) such as urea-formaldehyde resin and stabilizers (retention additives) such as ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J133/08
Inventor 孙梅华克勤
Owner 孙梅
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