Acrylate emulsion for waterborne metal paint and preparation method thereof
A water-based metallic paint, acrylate technology, applied in the direction of coating, can solve problems such as insufficient water resistance, and achieve the effect of enhancing water resistance, improving poor water resistance and small monomer amount
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Embodiment 1
[0025] (1) Preparation of composite emulsifier: Take sodium dodecylbenzenesulfonate: 10g, OP-10: 10g, sodium p-styrenesulfonate: 20g, mix well.
[0026] (2) Preparation of nuclear monomer pre-emulsion: get styrene: 100g, methyl methacrylate: 100g, butyl acrylate: 50g, isooctyl acrylate: 50g, deionized water: 170g, composite emulsifier: 20g, Initiator: 0.5 g is placed in a reaction kettle at a rotational speed of 600 r / min, and dispersed for 20 min to prepare a nuclear monomer pre-emulsion.
[0027] (3) Preparation of shell monomer pre-emulsion: styrene: 50g, methyl methacrylate: 50g, isooctyl acrylate: 50g, hydroxyethyl methacrylate: 10g, methacrylic acid: 10g, acetyl methacrylate Acetoxyethyl ester: 10g, vinyltrimethoxysilane: 10g, deionized water, 170g; complex emulsifier, 20g; initiator: 0.5g was placed in a reaction kettle at a speed of 600r / min, and dispersed for 20min to obtain a shell Monomer pre-emulsion.
[0028] (4) Weigh deionized water: 150g, initiator: 0.5g; pH ...
Embodiment 2
[0030] (1) Preparation of composite emulsifier: Take sodium dodecylbenzenesulfonate: 10g, OP-10: 10g, sodium p-styrenesulfonate: 20g, mix well.
[0031] (2) Preparation of nuclear monomer pre-emulsion: take styrene: 50g, methyl methacrylate: 100g, butyl acrylate: 50g, deionized water: 170g, composite emulsifier: 20g, initiator: 0.5g in In the reaction kettle, the rotation speed is 600r / min, and the nucleus monomer pre-emulsion is prepared by dispersing for 20min.
[0032] (3) Preparation of shell monomer pre-emulsion: styrene: 50g, methyl methacrylate: 50g, butyl acrylate: 30g, isooctyl acrylate: 50g, hydroxyethyl methacrylate: 20g, methacrylic acid: 10g, acetoacetoxyethyl methacrylate: 20g, vinyltriethoxysilane: 20g, deionized water, 170g; composite emulsifier, 20g; initiator: 0.5g is placed in the reaction kettle, and the rotation speed is 600r / min, dispersed for 20 minutes to prepare the shell monomer pre-emulsion.
[0033] (4) Weigh deionized water: 150g, initiator: 0.5...
Embodiment 3
[0035] (1) Preparation of composite emulsifier: Take sodium dodecylbenzenesulfonate: 10g, OP-10: 10g, sodium p-styrenesulfonate: 20g, mix well.
[0036] (2) Preparation of nuclear monomer pre-emulsion: take styrene: 50g, methyl methacrylate: 100g, butyl acrylate: 50g, deionized water: 170g, composite emulsifier: 20g, initiator: 0.5g in In the reaction kettle, the rotation speed is 600r / min, and the nucleus monomer pre-emulsion is prepared by dispersing for 20min.
[0037](3) Preparation of shell monomer pre-emulsion: styrene: 50g, methyl methacrylate: 65g, isooctyl acrylate: 50g, hydroxyethyl methacrylate: 30g, acrylic acid: 15g, acetoacetoxymethacrylate Ethyl ester: 15g, methacryloxypropyl trimethoxysilane: 15g, deionized water, 170g; complex emulsifier, 20g; The shell monomer pre-emulsion was prepared in 20 minutes.
[0038] (4) Weigh deionized water: 150g, initiator: 0.5g; pH buffer: 0.5g in the reaction kettle, stir at 200r / min, heat up to 75°C, start to add the nuclear ...
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