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Preparation technology of modified calcium carbonate for plastic

A preparation process and calcium carbonate technology, applied in the field of modified calcium carbonate preparation, can solve the problems of calcium carbonate hydrophilic and oleophobic, poor dispersibility, poor plastic compatibility, etc., and achieve good modification effect, good dispersibility, The effect of improving mechanical properties

Inactive Publication Date: 2017-12-22
广西汇智生产力促进中心有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a preparation process of modified calcium carbonate for plastics, so as to solve the existing problems of calcium carbonate such as hydrophilic and oleophobic, poor dispersibility, poor compatibility with plastics, etc.

Method used

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  • Preparation technology of modified calcium carbonate for plastic
  • Preparation technology of modified calcium carbonate for plastic

Examples

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preparation example Construction

[0027] The preparation technology of described modified calcium carbonate, comprises the following steps:

[0028] S1: Grinding the calcium carbonate, passing through a 1000-1500 mesh sieve, and drying at a temperature of 85-90°C until the water content is ≤0.5%, to obtain a calcium carbonate pulverized product;

[0029] S2: Add the crushed calcium carbonate obtained in step S1 into a high-speed mixer, and then add triethanolamine oleic acid soap, dicyclohexyl peroxydicarbonate, trimethylolpropane tris(3-aziridinylpropane) Ester), aluminum triacetylacetonate, molecular sieve catalyst, heated up to 53-68 ° C, and stirred at a high speed of 1300-1500r / min for 40-60min to prepare mixture A;

[0030] S3: Add potassium diethylenetriaminepentacarboxylate, acrylate regulator, diisodecyl phthalate, and hexenyl bisstearamide to the mixture A prepared in step S2, and control the temperature at 70-86 °C, stirring at a high speed of 1000-1200r / min for 30-40min to prepare mixture B;

[0...

Embodiment 1

[0036] A high-performance plastic prepared by using modified calcium carbonate, which includes the following raw materials in parts by weight: 70 parts of polyvinyl chloride, 32 parts of modified calcium carbonate, 3 parts of nylon, 4 parts of chlorinated paraffin, 5 parts of borax, 2 parts of antistatic agent, 3 parts of mineral oil;

[0037] The modified calcium carbonate, in parts by weight, comprises the following raw materials: 172 parts of calcium carbonate, 5.6 parts of triethanolamine oleic acid soap, 0.1 part of dicyclohexyl peroxydicarbonate, trimethylolpropane three (3- Aziridinyl propionate) 0.7 parts, aluminum triacetylacetonate 0.2 parts, molecular sieve catalyst 0.1 parts, potassium diethylene triamine pentacarboxylate 0.8 parts, acrylate regulator 0.3 parts, diisodecyl phthalate 2 parts, 0.6 parts of hexenyl bis stearamide, 0.6 parts of 2-(2'-hydroxy-3',5'-di-tert-phenyl)-5-chlorinated benzotriazole, N-ethyl-5 - 0.5 part of methyl-2-(1-methylethyl) cyclohexane...

Embodiment 2

[0046] A high-performance plastic prepared by using modified calcium carbonate, comprising the following raw materials in parts by weight: 56 parts of polyvinyl chloride, 28 parts of modified calcium carbonate, 2 parts of nylon, 3 parts of chlorinated paraffin, 4 parts of borax, 1.2 parts of antistatic agent, 2.5 parts of mineral oil;

[0047] The modified calcium carbonate, in parts by weight, comprises the following raw materials: 143 parts of calcium carbonate, 4.4 parts of triethanolamine oleic acid soap, 0.1 part of dicyclohexyl peroxydicarbonate, trimethylolpropane three (3- Aziridinyl propionate) 0.5 parts, aluminum triacetylacetonate 0.2 parts, molecular sieve catalyst 0.1 parts, potassium diethylene triamine pentacarboxylate 0.6 parts, acrylate regulator 0.2 parts, diisodecyl phthalate 1.5 parts, 0.4 parts of hexenyl bis stearamide, 0.4 parts of 2-(2'-hydroxy-3',5'-di-tert-phenyl)-5-chlorinated benzotriazole, N-ethyl-5 - 0.3 part of methyl-2-(1-methylethyl) cyclohexa...

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Abstract

The invention discloses a preparation technology of modified calcium carbonate for plastic. The modified calcium carbonate for the plastic is prepared from raw materials as follows: calcium carbonate, triethanolamine oleic soap, dicyclohexyl peroxydicarbonate, trimethylolpropanetris(3-aziridinylpropanoate), aluminum acetylacetonate, a catalyst, diethylenetriamine potassium pentacarboxylate, a modifier, di-iso-decylphthalate, hexenyl distearamide, 2-(2'-hydroxy-3',5-di-tert-phenyl)-5-benzotriazole chloride, N-ethyl-5-methyl-2-(1-methyl ethyl)cyclohexanecarboxamide and a stabilizer, and the modified calcium carbonate for the plastic is prepared through steps of surface modification, performance adjustment, crushing, drying and the like. The loose bulk density of modified calcium carbonate is significantly reduced, and modified calcium carbonate powder for the plastic is fully dispersed and has slight aggregation and good dispersity after being added to the plastic.

Description

【Technical field】 [0001] The invention belongs to the technical field of preparation of modified calcium carbonate, and in particular relates to a preparation process of modified calcium carbonate for plastics. 【Background technique】 [0002] Calcium carbonate is a commonly used inorganic filler. It is widely used in rubber, plastics, coatings and other fields due to its wide source and low price. However, the surface of calcium carbonate is hydrophilic and oleophobic, the specific surface area is large, the surface energy is high, and the particles are easily agglomerated. When directly or in large quantities filled in organic matrix materials, it is not only difficult to disperse evenly, but also has a weak binding force with the matrix, resulting in Defects at the two-phase interface, some performance degradation of the composite. Therefore, in order to broaden its application field, it is necessary to modify the surface of calcium carbonate to make its surface lipophili...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08L77/00C08L91/06C08L91/00C08K13/06C08K9/04C08K3/26C08K3/38
CPCC08L27/06C08K3/26C08K9/04C08K2003/265C08K2003/387C08L2205/02C08L2205/035C08L77/00C08L91/06C08L91/00C08K13/06C08K3/38
Inventor 梁胜仁
Owner 广西汇智生产力促进中心有限公司
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