Preparation method of polyacrylic ester pressure-sensitive adhesive with high water tolerance
A polyacrylate and pressure-sensitive adhesive technology, applied in the direction of ester copolymer adhesives, adhesive types, etc., can solve the problems of low bonding performance and poor water resistance, and achieve high chemical stability, bonding performance and Improved waterproof performance and excellent water-repellent performance
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example 1
[0020] Take 800g of soybeans and mash them in a mortar, soak the mashed mixture with absolute ethanol for 2 hours, filter, and separate to obtain the filtrate. In parts by weight, weigh 50 parts of butyl acrylate, 15 parts of hydroxyethyl methacrylate Esters, 35 parts of styrene were placed in a beaker, and stirred for 15 minutes to obtain mixed monomers; in parts by weight, 0.5 parts of filtrate and 90 parts of deionized water were weighed, and the mixture in the beaker was mixed with a rotating speed of 200r / min. Add the mixed monomers dropwise to the flask. After the dropwise addition, continue to stir for 10 minutes to obtain a monomer pre-emulsion; in parts by weight, add 4 parts of filtrate and 40 parts of deionized water to a four-necked flask as the reaction bottom. solution; in parts by weight, take 4.5 parts of ammonium persulfate and dissolve it in 25 parts of deionized water to obtain an initiator solution; move the four-neck flask into a water bath at 80°C, and add...
example 2
[0022] Take 900g of soybeans and mash them in a mortar, soak the mashed mixture with absolute ethanol for 2.5h, filter, separate and obtain the filtrate, and weigh 55 parts of butyl acrylate, 10 parts of methacrylate hydroxy Ethyl ester, 35 parts of styrene were placed in a beaker, and stirred for 20 minutes to obtain mixed monomers; in parts by weight, 0.8 parts of filtrate and 95 parts of deionized water were weighed, and in the stirring state of 250r / min, the The mixed monomers were added dropwise into the flask. After the dropwise addition, the stirring was continued for 15 minutes to obtain a monomer pre-emulsion; in parts by weight, another 4.5 parts of filtrate and 45 parts of deionized water were added to a four-necked flask as a reaction Bottom solution; in parts by weight, take 4.5 parts of ammonium persulfate and dissolve in 28 parts of deionized water to obtain an initiator solution; move the four-necked flask into a water bath at 83°C, add one-tenth of the monomer ...
example 3
[0024] Take 1000g of soybeans and mash them in a mortar, soak the mashed mixture in absolute ethanol for 3 hours, filter, and separate to obtain the filtrate. In parts by weight, weigh 60 parts of butyl acrylate, 20 parts of hydroxyethyl methacrylate Esters, 20 parts of styrene were placed in a beaker, and stirred for 25 minutes to obtain mixed monomers; in parts by weight, 1.0 parts of filtrate and 100 parts of deionized water were weighed, and in a stirring state at a speed of 300r / min, the Add the mixed monomers dropwise into the flask. After the dropwise addition, continue to stir for 20 minutes to obtain a monomer pre-emulsion; in parts by weight, add 5 parts of filtrate and 50 parts of deionized water to a four-necked flask as the reaction bottom. solution; in parts by weight, take 5 parts of ammonium persulfate and dissolve in 30 parts of deionized water to obtain an initiator solution; move the four-necked flask into a water bath at 85°C, and add one-tenth of the monome...
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