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Composite modifier for calcium carbonate surface modification

A composite modifier and surface modification technology, which is applied in the treatment of dyed high molecular organic compounds, dyed low molecular organic compounds, chemical instruments and methods, etc. High cost, complex components and other problems, to achieve excellent modification effect, simple composition, good modification effect

Active Publication Date: 2021-04-13
广西贺州市科隆粉体有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a composite modifier for calcium carbonate surface modification, to solve the complex composition and high preparation cost of existing multi-component (more than two) composite modifiers; Problems such as poor modification effect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A method for preparing calcium carbonate special for artificial stones, comprising the following steps: after the ore is washed, it is crushed until the particles are smaller than 30mm, and a titanate coupling agent with 1% of the mass of the ore and polypropylene with a mass of 0.6% of the ore are added to a screw conveyor The amide is made into a paste and put into the grinding equipment for grinding. During grinding, the oil pressure of the grinding roller is 5MPa. After being classified by the speed classifier, the speed of the speed classifier is 360-380r / min. The collected particle size distribution is suitable for artificial stone special calcium carbonate. The calcium carbonate is used in the preparation of artificial stone.

Embodiment 2

[0036] A method for preparing calcium carbonate special for artificial stones, comprising the following steps: after the ore is cleaned, it is crushed until the particles are smaller than 28mm, and a titanate coupling agent with an ore mass of 0.8% and an ore mass of 0.5% polypropylene are added to a screw conveyor The amide is made into a paste and enters the grinding equipment for grinding. During grinding, the oil pressure of the grinding roller is 7MPa. After being classified by the speed classifier, the speed of the speed classifier is 420-430r / min. The collected particle size distribution is suitable for artificial stone special calcium carbonate. The calcium carbonate is used in the preparation of artificial stone.

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Abstract

The invention discloses a composite modifier for modifying the surface of calcium carbonate, which comprises modifier A and modifier B prepared with a mass ratio of 8-10:5-7. Composite modifier of the present invention compares its modifying effect better with existing single-component modifier, and its composition is simple compared with existing multi-component (more than two) composite modifiers, It is not complicated, has excellent modification effect, and can also reduce costs.

Description

technical field [0001] The invention belongs to the technical field of calcium carbonate modifier preparation, and in particular relates to a composite modifier for calcium carbonate surface modification. Background technique [0002] Untreated ground calcium carbonate is difficult to disperse in composite materials due to its hydrophilic and oleophobic surface and poor compatibility with polymers. The poorly dispersed ground calcium carbonate not only seriously affects the appearance of the product, but also the large aggregates are easy to form internal defects of the material, which cannot achieve the ideal reinforcement effect on the polymer material. In order to solve these problems, surface modification is an inevitable choice to realize the functional filling of heavy calcium carbonate to polymer materials, and it is an important operating unit that determines product quality in the preparation of heavy calcium carbonate. The surface modification effect is the main a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09C1/02C09C3/08C09C3/10C04B20/02C04B14/28
CPCC01P2006/19C04B20/023C04B20/026C09C1/021C09C3/006C09C3/08C09C3/10C04B14/28
Inventor 李奇洪黄华彬贝进国唐洋喜叶有谢献娥谢云韦富强
Owner 广西贺州市科隆粉体有限公司
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