Polymer hollow particles and preparation method and application thereof
A technology of polymer and hollow microspheres, applied in the fields of materials and chemical industry, can solve the problems of difficult mass production, complex processing process, and high requirements for preparation control, and achieve the effect of easy dissolution and simple preparation process.
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Embodiment 1
[0047] In a 500mL four-necked flask equipped with a thermometer, a condenser, a stirrer, and nitrogen gas, 5 grams of hydroxyl polyurethane resin with a molecular weight of 5,000, 55 grams of methyl methacrylate, 10 grams of styrene, and 30 grams of dimethylaminoethyl acrylate The ester was dissolved in a mixed solvent of 70 g of mesitylene and 30 g of methyl ethyl ketone, mixed evenly, stirred and heated to 80-90° C. under the protection of nitrogen, and the radical copolymerization reaction was carried out for 5 hours. Cool down after the polymerization reaction, add an aqueous solution of acetic acid equivalent to the amino group and mix, then add 200 grams of water to dilute to obtain a milky white polymer hollow microsphere dispersion.
Embodiment 2
[0049] In a 500mL four-necked flask equipped with a thermometer, a condenser, a stirrer, and nitrogen gas, 20 grams of chlorinated polypropylene resin with a molecular weight of 100,000, 10 grams of vinyltriethoxysilane, and 20 grams of α-methylstyrene 15 grams of lauryl methacrylate (LMA), 35 grams of propenyl sulfonic acid are added to 20 grams of butyl acetate, 20 grams of xylene in a mixed solvent to dissolve and mix evenly, stir and heat up to 70-80 °C under nitrogen protection , free radical copolymerization reaction for 10 hours. After the polymerization reaction is finished, cool down, add triethylamine equivalent to triple sulfonic acid group and mix, then add 300 grams of water to dilute to obtain milky white polymer hollow microsphere dispersion.
Embodiment 3
[0051] In a 500mL four-necked flask equipped with a thermometer, a condenser, and a stirrer, 10 grams of acrylate resin with a molecular weight of 20,000, 10 grams of phthalic anhydride, 5 grams of pentadecanedioic acid, and 35 grams of 1,6- Add hexanediol and 40 grams of dimethylol butyric acid to a mixed solvent of 30 grams of dimethyl succinate and 100 grams of dimethyl glutarate, and react at 150-180° C. for 10 hours to obtain a polyester resin. After the polymerization reaction finishes, cool down, add 5 times of carboxyl equivalents of N-ethylmorpholine to neutralize the acid in the resin, add 400 grams of water to dilute, add metered deionized water, make the resin solid content 40wt%, at 3000rpm Stir at high speed for 30 minutes at a rotating speed to obtain a milky white polymer hollow microsphere dispersion.
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