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Sodium polyacrylate/triethanolamine modified calcium carbonate filler for PVC

A technology of sodium polyacrylate and calcium carbonate fillers, which can be used in fibrous fillers, inorganic pigment treatment, dyed low molecular organic compound treatment and other directions, which can solve the problem of inability to achieve filling and reinforcement effects, insufficient polymer compatibility, and poor dispersion. and other problems, to achieve the effect of improving performance, good filling and reinforcement, and high application value

Active Publication Date: 2016-06-08
安徽雪城超细碳酸钙有限公司
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  • Abstract
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Problems solved by technology

[0002] Calcium carbonate is an important class of functional inorganic fillers. It has the advantages of low price, abundant reserves, stable performance, easy processing, and non-toxicity. It can significantly improve the processing performance and physical properties of materials and reduce production costs. It is widely used In the fields of plastics, rubber, coatings, papermaking, etc., because calcium carbonate is a hydrophilic compound, there are defects such as insufficient compatibility with polymers and poor dispersion in practical applications, and satisfactory filling and reinforcing effects cannot be achieved. Therefore, Calcium carbonate needs to be modified to improve its dispersion and compatibility in various materials, so as to achieve the effect of improving product performance

Method used

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Embodiment

[0012] The modified calcium carbonate filler of the present embodiment is made of the following raw materials in parts by weight: calcium carbonate 200, sodium tripolyphosphate 2, sodium polyacrylate 1, triethanolamine 3, copper oxide 1, lanthanum oxide 1, triethyl citrate 2. Accelerator M2, auxiliary agent 5;

[0013] The above-mentioned additives are made of the following raw materials in parts by weight: methyltriethoxysilane 2, zirconium fluoride 1, nano silicon dioxide 1, basswood ash 2, crosslinking agent TAC1, ascorbic acid 1; its preparation method is to The materials are mixed, ground and dispersed evenly, and the product is obtained.

[0014] The modified calcium carbonate filler is prepared by the following method:

[0015] (1) First mix calcium carbonate and triethyl citrate and grind to 200 mesh;

[0016] (2) Mix the material obtained in step (1) with additives, and grind to 400 mesh;

[0017] (3) Add other remaining ingredients to the material obtained in step...

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Abstract

The invention relates to calcium carbonate filler, in particular to s odium polyacrylate / triethanolamine modified calcium carbonate filler for PVC (polyvinyl chloride). The modified calcium carbonate is prepared from the following raw materials in parts by weight: 200 parts of calcium carbonate, 1 to 2 parts of sodium tripolyphosphate, 1 to 2 parts of sodium polyacrylate, 2 to 3 parts of triethanolamine, 1 to 2 parts of copper oxide, 1 to 2 parts of lanthanum oxide, 1 to 2 parts of triethyl citrate, 1 to 2 parts of promoter M and 4 to 5 parts of additive. According to the modified calcium carbonate powder, surface treating agents such as sodium tripolyphosphate, sodium polyacrylate and triethanolamine are used for modifying the calcium carbonate, the performance indexes such as oil absorption value, viscosity, activating rate and the like are improved, and the modified calcium carbonate powder can be more easily dispersed and dissolved in medium. By adopting the modified calcium carbonate powder, the mechanical performance of the PVC material can be effectively improved, and a good flexibility improving and reinforcing effect can be realized.

Description

technical field [0001] The invention relates to a calcium carbonate filler, in particular to a sodium polyacrylate / triethanolamine modified calcium carbonate filler for PVC. Background technique [0002] Calcium carbonate is an important class of functional inorganic fillers. It has the advantages of low price, abundant reserves, stable performance, easy processing, and non-toxicity. It can significantly improve the processing performance and physical properties of materials and reduce production costs. It is widely used In the fields of plastics, rubber, coatings, papermaking, etc., because calcium carbonate is a hydrophilic compound, there are defects such as insufficient compatibility with polymers and poor dispersion in practical applications, and satisfactory filling and reinforcing effects cannot be achieved. Therefore, Calcium carbonate needs to be modified to improve its dispersion and compatibility in various materials, so as to achieve the effect of improving produ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08K9/04C08K3/26C08L27/06C09C1/02C09C3/10C09C3/08C09C3/06
Inventor 窦念根
Owner 安徽雪城超细碳酸钙有限公司
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