Aqueous acrylic emulsion, aqueous adhesive for plastic-plastic composite materials and preparation method thereof
A water-based acrylic and water-based adhesive technology, applied in the direction of adhesive types, ester copolymer adhesives, etc., can solve the problems of insufficient bonding strength of plastic films, low peeling strength of composite films, and poor heat resistance, etc. Achieve high shear and green strength, high molecular weight, ease of use
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Embodiment 1
[0018] Embodiment 1 of the present invention provides a water-based acrylic emulsion, which can be used to prepare water-based adhesives for plastic-plastic composite materials. The soft monomer and 3-7wt% of acrylic acid functional monomer are polymerized under the action of water, emulsifier, initiator, buffer and pH regulator; wherein, the amount of the emulsifier is acrylic hard monomer, acrylic soft 0.5-5.0% of the total weight of monomers and acrylic functional monomers; the amount of the initiator is 0.4-1.0% of the total weight of acrylic hard monomers, acrylic soft monomers and acrylic functional monomers; The amount of the buffering agent is 0.1% to 0.6% of the total weight of the acrylic hard monomer, the acrylic soft monomer and the acrylic functional monomer; 0.5-2% of the total weight of the three; the amount of the water is 1-1.5 times of the total weight of the acrylic hard monomer, acrylic soft monomer and acrylic functional monomer.
[0019] The acrylic hard...
Embodiment 2
[0025] The second embodiment provides a water-based acrylic emulsion, which can be used to prepare water-based adhesives for plastic-plastic composite materials. The acrylic emulsion consists of the following components (by weight):
[0026] Methyl acrylate 10
[0027] Methyl methacrylate 26
[0028] Ethyl acrylate 20
[0029] Butyl acrylate 36
[0030] Methacrylic acid 3
[0031] Hydroxyethyl Acrylate 2
[0032] Diethylene glycol diacrylate 2
[0033] Trimethylolpropane Triacrylate 1
[0034]Emulsifier A-103 (Shanghai Zhongcheng Chemical Company) 1.0
[0035] Emulsifier EFS-1310 (Shanghai Zhongcheng Chemical Company) 1.0
[0036] Emulsifier UCAN-1 (Shanghai Zhongcheng Chemical Company) 0.8
[0037] Ammonium persulfate (initiator) 0.6
[0038] Sodium bicarbonate (buffer) 0.2
[0039] Ammonia (PH regulator) 1.6
[0040] Deionized water 145.
[0041] The preparation method of above-mentioned aqueous acrylic acid emulsion specifically comprises:
[0042] Take each ra...
Embodiment 3
[0046] This embodiment three provides a water-based acrylic emulsion, which can be used to prepare water-based adhesives for plastic-plastic composite materials. The acrylic emulsion consists of the following components (by weight):
[0047] Methyl methacrylate 32
[0048] Ethyl acrylate 28
[0049] Isooctyl acrylate 33
[0050] Methacrylic acid 3
[0051] Hydroxyethyl Acrylate 2
[0052] Diethylene glycol diacrylate phthalate 1
[0053] Trimethylolpropane Triacrylate 1
[0054] Emulsifier A-103 (Shanghai Zhongcheng Chemical Company) 1.2
[0055] Emulsifier EFS-1310 (Shanghai Zhongcheng Chemical Company) 1.2
[0056] Emulsifier UCAN-1 (Shanghai Zhongcheng Chemical Company) 0.6
[0057] Sodium persulfate (initiator) 0.8
[0058] Ammonium bicarbonate (buffer) 0.3
[0059] Ammonia (PH regulator) 1.4
[0060] Deionized water 120.
[0061] The preparation method of above-mentioned aqueous acrylic acid emulsion specifically comprises:
[0062] Get each raw material accor...
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