Modified VAE emulsion formaldehyde-free adhesive and using method thereof
An aldehyde adhesive and emulsion technology, applied in the directions of adhesive additives, chemical instruments and methods, chemical modification of natural resins, etc., can solve the problems of carcinogenic viscosity and poor waterproof performance, and achieve high bonding strength and high bonding degree. , good viscosity
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Embodiment 1
[0023] Preparation of Rosin Ester Emulsion:
[0024] The preparation of stabilizer solution: take 22g polyvinyl alcohol (PVA), put into 350g distilled water, stir and dissolve evenly, set aside;
[0025] Take g as the unit, weigh the required raw materials of each component: rosin glyceride 200g, dimethyl carbonate (DMC) 150g, emulsifier alkylphenol polyoxyethylene ether 28g, dibutyl phthalate 17.5g, Prepare 375 g of the stabilizer solution obtained above; mix rosin glyceride with dimethyl carbonate (DMC), heat and dissolve to obtain rosin ester liquid, then naturally cool the obtained rosin ester liquid to room temperature, and put it into a reaction kettle with a stirring device In the middle, start stirring, the stirring speed is 100~300r / min, add dibutyl phthalate (DBP), emulsifier alkylphenol polyoxyethylene ether, stir for 10min, adjust the stirring speed to 1800r / min, within 10min Add the stabilizer solution, continue to stir for 25 minutes, discharge, seal, the solid ...
Embodiment 2
[0031] Preparation of Rosin Ester Emulsion:
[0032] Preparation of stabilizer solution: Weigh 22g of polyacrylamide (PAM), put it into 280g of distilled water, stir and dissolve evenly, and set aside;
[0033] Take g as the unit, weigh the required raw materials of each component: hydrogenated rosin glyceride 150g, dimethyl carbonate (DMC) 112.5g, emulsifier alkylphenol polyoxyethylene ether 24g, dibutyl phthalate 15g , 302g of the above-mentioned prepared stabilizer solution, hydrogenated rosin glyceride and dimethyl carbonate (DMC) are mixed, heated and dissolved to obtain the rosin ester liquid, then the gained rosin ester liquid is naturally cooled to room temperature, and put into a In the reaction kettle, start stirring, the stirring speed is 100-300r / min, add dibutyl phthalate (DBP), emulsifier alkylphenol polyoxyethylene ether, stir for 10min, adjust the stirring speed to 1500r / min, Add the stabilizer solution within 10 minutes, continue to stir for 20 minutes, disch...
Embodiment 3
[0039] Preparation of Rosin Ester Emulsion:
[0040] The preparation of stabilizer solution: take 4g polyvinyl alcohol (PVA), put into 55g distilled water, stir and dissolve evenly, set aside;
[0041] Take g as the unit, weigh the required raw materials of each component: rosin glyceride 28g, dimethyl carbonate (DMC) 21g, emulsifier alkylphenol polyoxyethylene ether 5g, dibutyl phthalate 2g, the above Prepare 59 g of the resulting stabilizer solution, mix rosin glyceride with dimethyl carbonate (DMC), heat and dissolve to obtain the rosin ester liquid, then naturally cool the gained rosin ester liquid to room temperature, and put it into a reaction kettle with a stirring device , start stirring, the stirring speed is 100~300r / min, add dibutyl phthalate (DBP), emulsifier alkylphenol polyoxyethylene ether, stir for 10min, adjust the stirring speed to 1600r / min, add in 10min Stabilizer solution, continue to stir for 20 minutes, discharge, seal, the solid content of the prepared r...
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