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Water sucking resin microspheres for water-based coating and preparation method thereof

A technology of resin microspheres and water absorption, which is applied in the direction of microsphere preparation, microcapsule preparation, coating, etc., can solve the problems of low durability and achieve the effects of promoting rapid drying, increasing drying speed, and small expansion ratio

Inactive Publication Date: 2019-02-22
浙江欧路德交通科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Adding this kind of porous silica to water-based paint can improve the drying speed to some extent, but it has the disadvantage of low durability

Method used

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  • Water sucking resin microspheres for water-based coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example 1

[0029] (1) Dissolve the purified acrylic acid in water, place it in a conical flask under an ice-water bath, stir and slowly add NaOH solution dropwise therein to form an acrylic acid solution with a neutralization degree of 55%, cool to room temperature, and Add cross-linking agent N,N-methylenebisacrylamide, initiator ammonium persulfate, acrylamide and vinylpyrrolidone to the final acrylic acid solution, stir well to dissolve, and obtain a mixed solution;

[0030] (2) Add nanoporous silicon dioxide (the particle size of nanoporous silicon dioxide is about 100nm) and dispersant span-60 in cyclohexane, stir fully, heat up to 40°C, keep nitrogen atmosphere, and then (1 ) into the three-necked flask, heated to 75°C and reacted for 2.5 hours, filtered after the reaction, washed with methanol, dried in an oven, slightly ground and vacuum-dried to obtain a white powder superabsorbent resin microspheres.

[0031] In parts by weight, 20 are acrylic acid, 5 are acrylamide, 5 are vin...

preparation example 2

[0033] In parts by weight, it is 15 parts by weight of acrylic acid, 5 parts of acrylamide, 5 parts of vinylpyrrolidone, 1 part of nanoporous silicon dioxide, 1 part of dispersant, 0.05 part of crosslinking agent and 0.05 part of initiator. Others are the same as Preparation Example 1.

preparation example 3

[0035] No vinylpyrrolidone was added, 10 parts of acrylamide was added, and the others were the same as in Preparation Example 1.

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Abstract

The invention relates to water sucking resin microspheres for a water-based coating and a preparation method thereof. The water sucking resin microspheres are prepared by treating cyclohexane as a solvent; treating nano porous silica, a comonomer, a dispersing agent, a crosslinking agent and an initiating agent as main reaction materials; performing reversed phase suspension and polymerizing, wherein the comonomer comprises crylic acid, acrylamide and vinyl pyrrolidone. The microspheres can be greatly combined with coating filming resin and can adsorb water at the inner layer of the coating; in addition, the microspheres are low in expansion rate and can be prepared into micron level and even less level. With the adoption of the water sucking resin microspheres, the coating drying rate isincreased; in addition, a special preparation process is carried out; the water sucking resin microspheres are polymerized in situ in the presence of porous silica, so that the corrosion resistance ofthe water-based coating is further improved.

Description

technical field [0001] The invention relates to a water-absorbing resin microsphere for a water-based road marking paint. Background technique [0002] In order to affect traffic as little as possible, the drying time of pavement marking and marking paint needs to be as short as possible. However, after the traditional water-based paint is applied to the road surface, the surface layer cures quickly. After the surface layer is cured, the moisture in the inner layer is difficult to volatilize , and even stay in the paint for a long time, resulting in incomplete curing of the paint film and deterioration of wear resistance and other properties. [0003] CN100549113C protects a water-based road marking paint, including water, fillers, pigments and auxiliary agents, and the parts by weight of each component are 100-300 parts of water, 200-500 parts of acrylic emulsion, 90-180 parts of silicon dioxide, mica powder 30-60 parts, 180-300 parts of pigment, 15-60 parts of surfactant,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D7/65C09D133/00C09D7/61C09D7/62C09D7/63C08F220/06C08F220/56C08F226/10C08F222/38C08F2/44B01J13/18
CPCB01J13/18C08F2/44C08F220/06C08K2003/2241C08K2003/265C08K2201/011C08L2205/18C09D133/00C09D7/61C09D7/62C09D7/63C09D7/65C09D7/67C09D7/70C08F220/56C08F226/10C08F222/385C08L39/08C08K13/06C08K3/26C08K7/26C08K3/22C08K5/103
Inventor 陈晓东
Owner 浙江欧路德交通科技有限公司
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