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Preparation method of water-resistant high-viscosity biomass wallpaper adhesive

A technology of biomass and wallpaper glue, which is applied in the field of decoration, can solve the problems of loss of bonding effect, easy deterioration and pulverization, oxidative deterioration, etc., and achieve the effect of increasing crosslinking strength, increasing bonding strength, and improving bonding strength

Inactive Publication Date: 2019-12-20
李文凤
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The technical problem mainly solved by the present invention is that the current common biomass-based wallpaper adhesives have poor water resistance and low bonding strength. After the colloid and wallpaper are oxidized in a humid environment for a long time, they are easy to deteriorate and pulverize, thus losing the bonding effect. The organic components contained in some starch-based adhesives will oxidize and deteriorate after water absorption and denaturation, and a method for preparing water-resistant and high-viscosity biomass wallpaper adhesives is provided.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0030]Preparation of starch-based glue: mix starch, acrylamide and water at a mass ratio of 2:1:5 and put them into a four-necked flask, then add cerium ammonium nitrate with 3% starch mass to the four-necked flask, and mix the four-necked flask with Put the flask into a water bath, heat up to 70°C, stir and react for 2 hours, filter and separate to obtain the filter residue;

[0031] Put the filter residue obtained above into a beaker, then add trimethylol phenol with 3% of the filter residue mass, blocked isocyanate with 1% of the filter residue mass and deionized water twice the mass of the filter residue to the beaker, and move the beaker into the water bath , heated to 60°C, stirred and reacted for 40 minutes to obtain starch-based glue;

[0032] Preparation of porous dicalcium silicate powder:

[0033] by CaO / SiO 2 The molar ratio is 2:1, take calcium nitrate tetrahydrate and silica sol, and mix and stir for 1 hour to obtain a mixed solution, and then spray-dry the mix...

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PUM

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Abstract

The invention belongs to the technical field of decoration, and particularly relates to a preparation method of a water-resistant high-viscosity biomass wallpaper adhesive. Firstly, starch is used asa biomass material and is subjected to graft modification with acrylamide; then, trihydroxymethyl phenol and isocyanate are used as cross-linking agents, a starch-based adhesive is synthesized, and the bonding strength of the wallpaper adhesive is improved; in addition, a reaction liquid obtained after mixed reaction of polyvinyl alcohol and 3,4-dihydroxybenzoic acid, porous dicalcium silicate andoxidase are also added, a polyvinyl alcohol solution and a 3,4-dihydroxybenzoic acid solution are firstly subjected to esterification reaction, so that catechol functional groups are introduced, thebonding strength of the wallpaper adhesive is improved, meanwhile, the generated reticular polymer cross-linked structure is good in hydrophobicity, and the added porous dicalcium silicate having hydration performance is combined, so that the water resistance of the wallpaper adhesive is improved.

Description

technical field [0001] The invention belongs to the technical field of decoration, and in particular relates to a preparation method of water-resistant and high-viscosity biomass wallpaper glue. Background technique [0002] Wallpaper, also known as wallpaper, is an interior decoration material used to paste walls, and is widely used in interior decoration of houses, offices, hotels, hotels, etc. The material is not limited to paper, but also includes other materials. Because of its incomparable characteristics such as various colors, rich patterns, luxurious style, safety and environmental protection, convenient construction, and reasonable price, it has been popularized in developed countries and regions such as Europe, America, and Japan. Wallpapers are divided into many categories, such as laminated wallpapers, coated wallpapers, embossed wallpapers, etc. Usually bleached chemical wood pulp is used to produce base paper, and then processed by different processes, such ...

Claims

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Application Information

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IPC IPC(8): C09J151/02C09J129/04C09J11/06C09J11/04
CPCC09J11/04C09J11/06C09J151/02C08L29/04C08K7/26C08K5/13C08K5/29
Inventor 李文凤
Owner 李文凤