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Aqueous acrylic ester adhesive and preparation method thereof

A water-based acrylate and adhesive technology, which is applied in the direction of ester copolymer adhesives, adhesive types, polymer adhesive additives, etc., can solve problems such as poor storage stability, poor water resistance, and poor emulsification effect, and achieve Good stability and high viscosity effect

Active Publication Date: 2016-10-19
CHIZHOU FANGDA SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the current acrylic adhesive products have poor water resistance, easy aging under light, poor storage stability, poor emulsification effect and insufficient bonding strength, etc., which affect its performance in high-performance and high-demand industries. production application

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Add 10 grams of maleic acid dodecyl alcohol monoester sodium salt and 20 grams of water into the reactor, start stirring, then add 40 grams of n-butyl methacrylate, 15 grams of ethyl acrylate, β-hydroxyethyl acrylate 5 grams of ester, when the temperature rises to 75°C, add 1 gram of peroxyneodecanoic acid-1,1-dimethyl-3-hydroxybutyl ester, 5 grams of 4,4'-dihydroxybenzophenone, Stir until the system turns blue, add 10 grams of hydroxyl-terminated polydimethylsiloxane, stir and keep warm for 1 hour, cool down to 50°C and adjust the pH to about 7 with ammonia water.

[0018] The performance indicators are: emulsion appearance: milky white with blue light; storage stability: stable; cold water and hot water dilution stability: stable; viscosity: 81 / s; coagulation rate: 0.25.

Embodiment 2

[0020] Add 5 grams of maleic acid octanol monoester sodium salt and 20 grams of water into the reactor, start stirring, then add 50 grams of ethyl methacrylate, 10 grams of ethyl acrylate, and 10 grams of β-hydroxyethyl methacrylate. gram, when the temperature rises to 75°C, add 1 gram of peroxyneodecanoic acid-1,1-dimethyl-3-hydroxybutyl ester, 5 grams of 2-methylbenzophenone, stir until the system turns blue Finally, add 10 grams of hydroxyl-terminated polydimethylsiloxane, stir and keep warm for 1 hour, cool down to 50° C. and adjust the pH to about 7 with ammonia water.

[0021] Performance indicators are: emulsion appearance: milky white with blue light; storage stability: stable; cold water and hot water dilution stability: stable; viscosity: 82 / s; coagulation rate: 0.3.

Embodiment 3

[0023] Add 10 grams of cetyl alcohol monoester sodium salt of maleic acid and 20 grams of water into the reactor, start stirring, then add 40 grams of n-butyl methacrylate, 15 grams of ethyl acrylate, β-methacrylic acid 5 grams of hydroxypropyl ester, when the temperature rises to 75°C, add 0.5 grams of tert-butyl peroxyneheptanoate and 10 grams of 4,4'-dihydroxybenzophenone, stir until the system turns blue, then add terminal hydroxyl 10 grams of polydimethylsiloxane, stirred and incubated for 1 hour, cooled to 50°C and adjusted to pH 7 with ammonia water.

[0024] Performance indicators are: emulsion appearance: milky white with blue light; storage stability: stable; cold water and hot water dilution stability: stable; viscosity: 82 / s; coagulation rate: 0.26.

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PUM

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Abstract

The invention discloses an aqueous acrylic ester adhesive and a preparation method thereof. The adhesive is prepared by the following raw materials: a monomer, a reactive emulsifier, a light stabilizer, an initiator, a hydroxyl terminated polydimethylsiloxane organosilicon modifier, and distilled water; the raw materials are prepared by an emulsion polymerisation method. The preparation method comprises the following steps: the reactive emulsifier, distilled water and the monomer are added into a reaction container, stirring is carried out, and the temperature is controlled at 50-100 DEG C; an aqueous solution of the initiator is added dropwisely, when the system becomes blue, the hydroxyl terminated polydimethylsiloxane organosilicon modifier is added, stirring is carried out continuously, a heat reaction is carried out for 1-3 hours, and the adhesive is obtained. The aqueous acrylic ester adhesive has the advantages of good light stability, good emulsification effects, and high bonding strength.

Description

technical field [0001] The invention relates to an adhesive and a preparation method thereof, in particular to a water-based acrylate adhesive and a preparation method thereof. Background technique [0002] At present, acrylic adhesives are better than rubber-based adhesives in terms of hue, heat resistance, and weather resistance. The modification of acrylic adhesives can improve their adhesion to plastics. , is the most widely used plastic adhesive. The water-based acrylate adhesive is the fastest-growing polymer water-based adhesive since the 1980s in my country. Water-based acrylic adhesives are copolymerized by acrylate and methacrylate monomers or other monomers such as vinyl acetate, and have been widely used in glass, ceramics, fibers, cement, wood, rubber, plastics Bonding, sealing and fixing of metal, paper, biological tissue, etc. [0003] However, the current acrylic adhesive products have poor water resistance, easy aging under light, poor storage stability, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J133/10C09J11/06C09J11/08C08F220/18C08F220/28C08F2/24
Inventor 陈方
Owner CHIZHOU FANGDA SCI & TECH CO LTD
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