Impregnated calcium carbonate, method for producing same, polymer composition, and polymer precursor composition

一种碳酸钙、聚合物的技术，应用在碳酸钙/锶/钡、用于材料和表面科学的纳米技术、纤维状填料等方向，能够解决操作困难、碳酸钙易飞散等问题，达到分散性优异、不易飞散、操作容易的效果

Inactive Publication Date: 2014-02-26
SHIRAISHI KOGYO KAISHA LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, when the particle size of calcium carbonate is small, calcium carbonate tends to scatter, and there is a problem that handling is difficult.
In addition, there is also the problem that calcium carbonate after surface treatment with fatty acid etc. is easy to scatter

Method used

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  • Impregnated calcium carbonate, method for producing same, polymer composition, and polymer precursor composition
  • Impregnated calcium carbonate, method for producing same, polymer composition, and polymer precursor composition
  • Impregnated calcium carbonate, method for producing same, polymer composition, and polymer precursor composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1）

[0111] To BET specific surface area is 20m 2 2 kg of synthetic calcium carbonate / g was heated with water so that the solid content was 10% by weight, and a calcium carbonate slurry liquid was prepared using a stirring type disperser. While stirring the slurry liquid with a disperser, 60 g of sodium stearate was added, and the mixture was further stirred for 5 minutes. Next, the obtained slurry was dehydrated with a filter press, and then dried and powdered with a box dryer to obtain about 2 kg of surface-treated calcium carbonate surface-treated with sodium stearate.

[0112] Next, 200 g of the obtained surface-treated calcium carbonate was put into a mixer (flow mixer SMP-2 manufactured by Kawata Co., Ltd.), and stirred. Next, 10 g of Diana Process Oil NP-24 (trade name) produced by Idemitsu Kosan Co., Ltd., which is a naphthenic mineral oil, was sprayed into the mixer and stirred to obtain impregnated calcium carbonate. The treatment amount of Diana Process Oil NP-24 was a...

Embodiment 2）

[0123] An impregnation-treated calcium carbonate was obtained in the same manner as in Example 1, except that the amount of Diana Process Oil NP-24 (trade name) was 10 parts by weight with respect to 100 parts by weight of the surface-treated calcium carbonate. Next, similarly to Example 1, the scattering property (dispersion degree) of the impregnated calcium carbonate obtained in Example 2 was evaluated. The results are shown in Table 1 below. Next, in the same manner as in Example 1, the impregnated calcium carbonate obtained in Example 2 and the resin were mixed to prepare a resin paste, and the dispersibility of the impregnated calcium carbonate in the obtained resin paste was evaluated. The ratio of the compounding quantity of each component contained in the resin paste to which the impregnation-treated calcium carbonate was added is shown in Table 2. The evaluation results of dispersibility are shown in Table 4, figure 2 and image 3 middle.

Embodiment 3）

[0125] An impregnation-treated calcium carbonate was obtained in the same manner as in Example 1, except that the amount of Diana Process Oil NP-24 (trade name) was 14 parts by weight relative to 100 parts by weight of the surface-treated calcium carbonate. Next, similarly to Example 1, the scattering property (dispersion degree) of the impregnated calcium carbonate obtained in Example 3 was evaluated. The results are shown in Table 1 below. Next, in the same manner as in Example 1, the impregnated calcium carbonate obtained in Example 3 and the resin were mixed to prepare a resin paste, and the dispersibility of the impregnated calcium carbonate in the resin paste was evaluated. The ratio of the compounding quantity of each component contained in the resin paste to which the impregnation-treated calcium carbonate was added is shown in Table 2. The evaluation results of dispersibility are shown in Table 4, figure 2 and image 3 middle.

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Abstract

Provided are an impregnated calcium carbonate that is dustless and has excellent dispersibility in a polymer composition; a method for producing the same; and a polymer composition comprising the impregnated calcium carbonate. The impregnated calcium carbonate is obtained by surface treatment of calcium carbonate using at least one selected from fatty acids, resin acids, and derivatives thereof and by subjecting the resulting surface-treated calcium carbonate to impregnation at a normal temperature using a liquid organic compound in an amount between 3 to 22 parts by weight per 100 parts by weight of the surface-treated calcium carbonate.

Description

technical field [0001] The present invention relates to an impregnated calcium carbonate, a method for producing the same, a polymer composition containing the impregnated calcium carbonate, and a polymer precursor composition. Background technique [0002] Currently, a technique of blending calcium carbonate with a polymer is being carried out for the purpose of imparting various properties to polymer compositions such as resins and rubbers. When calcium carbonate is blended for the purpose of improving properties such as strength of the polymer composition, for example, the value of the BET specific surface area of ​​10 to 40 m may be used. 2 / g of fine calcium carbonate. [0003] For example, Patent Document 1 discloses that the BET specific surface area after surface treatment with a fatty acid salt in resin or the like is 10 m. 2 / g or more calcium carbonate scheme. [0004] However, when the particle size of the calcium carbonate is small, the calcium carbonate easi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01F11/18C08K9/04C08L101/00
CPCC01P2006/12C01P2004/64C01P2004/62C09C1/021C08K9/04B82Y30/00C08K3/26C08K5/0016C08K5/09C08L101/00C01F11/18C08L71/02
Inventor 酒井悠萱野善贞筬部周浩
Owner SHIRAISHI KOGYO KAISHA LTD
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