Modified calcium carbonate and preparation method thereof

A calcium carbonate and modification technology, applied in chemical instruments and methods, inorganic pigment treatment, dyeing low molecular organic compound treatment, etc. good performance

Inactive Publication Date: 2017-05-31
何淑琼
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the dispersion performance of calcium carbonate in the application still needs to be improved and improved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Embodiment 1: the preparation of modified calcium carbonate

[0018] Raw material weight ratio:

[0019] Calcium carbonate, 100 parts; Diacetone acrylamide, 8 parts; Polybutylene succinate, 9 parts; Methylene succinic acid, 7 parts; Sodium methylene dinaphthalene sulfonate, 3 parts; dibutyltin dichloride, 2 parts; polyaluminum chloride, 3 parts; mica powder, 3 parts; nano titanium dioxide, 5 parts; deionized water, 6 parts; acetyl tributyl citrate and dioctyl terephthalate total 8 Parts, the ratio of acetyl tributyl citrate and dioctyl terephthalate by weight is 7:1.

[0020] Preparation:

[0021] Step S1, calcium carbonate, sodium methylene dinaphthalene sulfonate, methylene succinic acid, diacetone acrylamide, polybutylene succinate, dibutyltin maleate, mica powder, triacetyl citrate Add butyl ester and dioctyl terephthalate into a high-speed kneader, heat up to 70-80°C, keep stirring for half an hour, continue to heat up to 110-130°C, keep warm for 10-20 minutes, ...

Embodiment 2

[0024] Embodiment 2: the preparation of modified calcium carbonate

[0025] Raw material weight ratio:

[0026] Calcium carbonate, 90 parts; Diacetone acrylamide, 6 parts; Polybutylene succinate, 8 parts; Methylene succinic acid, 6 parts; Sodium methylene dinaphthalene sulfonate, 2 parts; dibutyltin dichloride, 1 part; polyaluminum chloride, 2 parts; mica powder, 2 parts; nano-titanium dioxide, 4 parts; deionized water, 5 parts; Parts, the ratio of acetyl tributyl citrate and dioctyl terephthalate by weight is 6:1.

[0027] Preparation:

[0028] Step S1, calcium carbonate, sodium methylene dinaphthalene sulfonate, methylene succinic acid, diacetone acrylamide, polybutylene succinate, dibutyltin maleate, mica powder, triacetyl citrate Add butyl ester and dioctyl terephthalate into a high-speed kneader, heat up to 70-80°C, keep stirring for half an hour, continue to heat up to 110-130°C, keep warm for 10-20 minutes, and then pour it out;

[0029] Step S2, adding deionized wa...

Embodiment 3

[0031] Embodiment 3: the preparation of modified calcium carbonate

[0032] Raw material weight ratio:

[0033] Calcium carbonate, 110 parts; Diacetone acrylamide, 10 parts; Polybutylene succinate, 10 parts; Methylene succinic acid, 8 parts; Sodium methylene dinaphthalene sulfonate, 4 parts; dibutyltin dichloride, 3 parts; polyaluminum chloride, 4 parts; mica powder, 4 parts; nano-titanium dioxide, 6 parts; deionized water, 7 parts; Parts, the ratio of acetyl tributyl citrate and dioctyl terephthalate by weight is 8:1.

[0034] Preparation:

[0035] Step S1, calcium carbonate, sodium methylene dinaphthalene sulfonate, methylene succinic acid, diacetone acrylamide, polybutylene succinate, dibutyltin maleate, mica powder, triacetyl citrate Add butyl ester and dioctyl terephthalate into a high-speed kneader, heat up to 70-80°C, keep stirring for half an hour, continue to heat up to 110-130°C, keep warm for 10-20 minutes, and then pour it out;

[0036] Step S2, adding deionize...

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PUM

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Abstract

The invention discloses modified calcium carbonate and a preparation method thereof. The modified calcium carbonate is prepared from, by weight, 90-110 parts of calcium carbonate, 6-10 parts of diacetone acrylamide, 8-10 parts of poly(butylene succinate), 6-8 parts of methylene succinic acid, 2-4 parts of disodium methylene dinaphthalene sulfonate, 1-3 parts of dibutyltin maleate, 2-4 parts of polyaluminum chloride, 2-4 parts of mica powder, 4-6 parts of nano TiO2, 5-7 parts of deionized water, and 7-9 parts of both acetyl tributyl citrate and dioctyl terephthalate, wherein the weight part ratio of the acetyl tributyl citrate to the dioctyl terephthalate is 6-8:1. The modified calcium carbonate has good dispersibility and is improved in various mechanical performances, which may be related to the weight part ratio of the acetyl tributyl citrate to the dioctyl terephthalate; when the weight part ratio of the acetyl tributyl citrate to the dioctyl terephthalate is 6-8:1, the modified calcium carbonate has optimum performances.

Description

technical field [0001] The invention relates to modification processing of calcium carbonate, in particular to a modified calcium carbonate and a preparation method thereof. Background technique [0002] Calcium carbonate is an inorganic compound, commonly known as limestone, limestone, stone powder, marble, etc. Main ingredient: Calcite, a compound whose chemical formula is CaCO 3 , Neutral, basically insoluble in water, soluble in hydrochloric acid. It is a common substance on the earth and exists in aragonite, calcite, chalk, limestone, marble, travertine and other rocks, and is also the main component of animal bones or shells. Calcium carbonate is an important building material and is widely used in industry. Calcium carbonate is formed by combining calcium ions and carbonate ions, so it is both a calcium salt and a carbonate. [0003] At present, the dispersion performance of calcium carbonate in the application still needs to be improved and improved. Contents o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09C1/02C09C3/06C09C3/08C09C3/10
CPCC09C1/022C09C3/006C09C3/06C09C3/08C09C3/10
Inventor 何淑琼
Owner 何淑琼
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