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Environment-friendly type white emulsion glue

A white latex, environmentally friendly technology, applied in the direction of adhesive types, monocarboxylic acid ester copolymer adhesives, etc., can solve the problems of environmental and human harm, inevitable harmful substances such as formaldehyde, achieve fast drying speed, Excellent heat resistance and long shelf life

Inactive Publication Date: 2008-09-17
江苏德华兔宝宝装饰新材有限公司
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  • Summary
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  • Description
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AI Technical Summary

Benefits of technology

This new type of paint has better properties than traditional paints made from formaldehydes that are harmful for human health because they release volatile chemicals into air when exposed during production processes such as coating operations. These coatings also lose their effectiveness over time due to damage caused by weather conditions like rainwater hitting them with hard objects on it's surface.

Problems solved by technology

This patented technical problem addressed by this patents relates to finding ways to produce highly effective and nontoxic adhesion agents that can be produced without containing any chemical compounds or other potentially dangerous components like formaldehzene during their manufacturing process.

Method used

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Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0018] Take 832 parts of water, 40 parts of polyvinyl alcohol (20-88), 16 parts of acrylic acid, 480 parts of vinyl acetate, 30 parts of methyl acrylate, 30 parts of butyl acrylate (total monomer 556), 400 parts of EVA emulsion, emulsifier: 4 parts of OP-10 (octylphenol polyoxyethylene ether), 2 parts of sodium lauryl sulfate, initiator: weight concentration is 36 parts of 6% ammonium persulfate, plasticizer: dimethyl phthalate 44 parts of ester, pH regulator: weight concentration is 40 parts of 15% sodium acetate solution, heavy concentration is 50 parts of 10% sodium bicarbonate solution;

[0019] Copolymerization and blending include the following steps:

[0020] (a) Add 832 parts of water to the reactor, heat up to 30°C, add 40 parts of polyvinyl alcohol under stirring, then heat up to 95-98°C, and keep warm at this temperature for 1 hour;

[0021] (b) cooling the material in step (a) to 78-82° C., adding an emulsifier, then adding 20 parts of sodium acetate solution and ...

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PUM

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Abstract

The invention discloses environment-friendly white latex, which is produced by copolymerization and blending of the following raw materials in proportion by weight as follows: 800 to 900 parts of water; 30 to 50 parts of polyvinyl alcohol; monomers: 10 to 20 parts of acrylic acid, 450 to 500 parts of vinyl acetate, 20 to 40 parts of methyl acrylate, 20 to 40 parts of butyl acrylate, 350 to 450 parts of EVA emulsion, 4 to 8 parts of emulsifying agent, 30 to 45 parts of initiating agent and 40 to 50 parts of plasticizing agent; and pH adjustment agents: 30 to 50 parts of sodium acetate solution with 15 percent of weight concentration, and 40 to 60 parts of sodium bicarbonate solution with 10 percent of weight concentration. All the performance indexes of the environment-friendly white latex can achieve or exceed the common aldehyde-containing white latex; the environment-friendly white latex has good water-resistant property and heat-resistant property, and has the advantages of high bonding strength, fast drying speed, easy storage, long preserving period, no pollution, and so on, thereby can be widely used in timber processing industry, paint industry, construction material industry, printing industry, etc.

Description

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Claims

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Application Information

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Owner 江苏德华兔宝宝装饰新材有限公司
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