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Preparation method for acrylic copolymer ground calcium carbonate ultrafine powder

A heavy calcium carbonate and copolymer technology, applied in chemical instruments and methods, dyeing physical treatment, dyeing low molecular organic compound treatment and other directions, can solve the problem of no discovery, achieve convenient operation, scientific and reasonable design and low production cost Effect

Inactive Publication Date: 2015-03-11
甘振辉
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Through the search of Chinese published patents, 53 calcium carbonate invention patent applications were found; no solution identical to this patent application was found

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] The preparation method of the superfine powder of acrylic acid copolymer heavy calcium carbonate of the present invention is characterized in that: the heavy calcium carbonate coarse powder is added into the grinding equipment, at 85-95 ° C, calculated by weight percentage of the heavy calcium carbonate coarse powder , adding 10-12% of auxiliary agents, and through high-speed grinding to obtain modified ultrafine calcium carbonate powder with a particle size of 0.1 to 10 microns; 2-3 parts of ethoxy lauramide, 2-3 parts of aluminate coupling agent, 5-8 parts of sodium carbonate, and 5-8 parts of ethylene glycol.

Embodiment 2

[0011] The preparation method of the superfine powder of acrylic acid copolymer heavy calcium carbonate of the present invention is characterized in that: the heavy calcium carbonate coarse powder is added into the grinding equipment, at 85-95 ° C, calculated by weight percentage of the heavy calcium carbonate coarse powder , adding 10-12% of auxiliary agents, and through high-speed grinding to obtain modified ultrafine calcium carbonate powder with a particle size of 0.1 to 10 microns; the auxiliary agent, by weight, is 2 parts of acrylic vinyl pyridine copolymer, It consists of 3 parts of ethoxy lauramide, 2 parts of aluminate coupling agent, 5-8 parts of sodium carbonate, and 5-8 parts of ethylene glycol.

Embodiment 3

[0013] The preparation method of the superfine powder of acrylic acid copolymer heavy calcium carbonate of the present invention is characterized in that: the heavy calcium carbonate coarse powder is added into the grinding equipment, at 85-95 ° C, calculated by weight percentage of the heavy calcium carbonate coarse powder , adding 10-12% of auxiliary agents, and through high-speed grinding to obtain modified ultrafine calcium carbonate powder with a particle size of 0.1 to 10 microns; the auxiliary agent, by weight, is 3 parts of acrylic acid vinylpyridine copolymer, It consists of 2 parts of ethoxy lauramide, 3 parts of aluminate coupling agent, 5-8 parts of sodium carbonate, and 5-8 parts of ethylene glycol.

[0014] The product has been used by customers and the response is very good.

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Abstract

The invention provides a preparation method for acrylic copolymer ground calcium carbonate ultrafine powder. The preparation method is characterized in that ground calcium carbonate coarse powder is added into a grinding device; at a temperature between 85 DEG C to 95 DEG C, 10 to 12 percent of an additive is added according to the weight percentage of the ground calcium carbonate coarse powder, and the modified ultrafine calcium carbonate powder with a particle diameter between 0.1 micron to 10 microns are obtained through high-speed grinding; the additive includes the following components by weight: 2 to 3 parts of an acrylic vinylpyridine copolymer, 2 to 3 parts of ethyoxyl lauramide, 2 to 3 parts of an aluminic acid ester coupling agent, 5 to 8 parts of sodium carbonate, and 5 to 8 parts of glycol. The preparation method has the advantages of being scientific and reasonable in design, simple in technique, safe, reliable, easy to control, convenient to operate, suitable for large-scale production, low in production cost, and the like.

Description

technical field [0001] The invention belongs to a production method of calcium carbonate powder. Background technique [0002] At present, calcium carbonate has been widely used in papermaking, plastics, plastic films, chemical fibers, rubber, adhesives, sealants, daily chemicals, cosmetics, building materials, coatings, paints, inks, putty, sealing wax, putty, felt packaging, medicine , food (such as chewing gum, chocolate), and feed, its functions include: increasing product volume, reducing cost, improving processing performance (such as adjusting viscosity, rheological properties, vulcanization properties), improving dimensional stability, reinforcing or semi-reinforcing , Improve printing performance, improve physical properties (such as heat resistance, extinction, abrasion resistance, flame retardancy, whiteness, gloss) and so on. There are two kinds of production process of heavy calcium carbonate. Dry production process: First, hand-select calcite, limestone, chal...

Claims

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Application Information

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IPC IPC(8): C09C1/02C09C3/10C09C3/08C09C3/06C09C3/04
Inventor 廖煜明廖文成李杰
Owner 甘振辉