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Surface modified calcium carbonate packing and preparation method thereof

A calcium carbonate filler and surface modification technology, which is applied in the field of plastic processing, can solve the problems of easy agglomeration and reduction of calcium carbonate, and achieve the effects of improving mechanical properties, increasing hydrophobicity, and improving toughness

Inactive Publication Date: 2014-12-10
QINGYANG COUNTY YONGCHENG CALCIUM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a surface-modified calcium carbonate filler and a preparation method thereof, which solves the problem that calcium carbonate is prone to agglomeration in PVC products, reduces oil absorption, improves the mechanical properties of PVC, and improves toughness , flexural strength and impact resistance

Method used

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Embodiment Construction

[0014] A surface-modified calcium carbonate filler, made of the following raw materials in parts by weight (kg): paraffin wax 1.5, methyltrichlorosilane 2.2, fly ash 3.5, fumaric acid 0.3, zirconium tetrafluoride 4.5, benzalkonium chloride Ammonium 0.3, Phytate 2.5, Glycerin Rosin Ester 1.5, 1,6 Hexanediol Diacrylate 1.5, Trimethylolpropane Triacrylate 1.2, Ammonium Persulfate 0.1, Sodium Silicate 1.5, Light Calcium Carbonate 83, additive 16, water 130;

[0015] The additives are made of the following raw materials in parts by weight (kg): jojoba oil 0.04, sodium tripolyphosphate 0.03, allyl glycidyl ether 0.3, γ-aminopropyl triethoxysilane 0.2, polytian Particic acid 0.2, hydrolyzed polymaleic anhydride 0.1, ethylene glycol 0.1, potassium oleate 0.03, ABS 0.1, microcrystalline wax 0.1, active zinc oxide 4, needle-like calcium carbonate whiskers 1.5, microporous calcium carbonate 1.5, Alkylene glycol 0.3, water 7.5; the preparation method is: jojoba oil, allyl glycidyl ether,...

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PUM

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Abstract

The invention discloses surface modified calcium carbonate packing which is prepared from the following raw materials in parts by weight: 1-2 parts of paraffin, 2-2.4 parts of methyl trichlorosilane, 3-4 parts of coal ash, 0.3-0.4 part of fumaric acid, 4-5 parts of zirconium tetrafluoride, 0.2-0.4 part of benzalkonium chloride, 2-3 parts of inositol hexaphosphate, 1-2 parts of glycerin abietate, 1-2 parts of 1,6 diethylene glycol diacrylate, 1-1.4 parts of trimethylolpropane triacrylate, 0.1-0.2 part of ammonium persulfate, 1-2 parts of sodium silicate, 80-85 parts of light calcium carbonate, 13-16 parts of additives and 120-140 parts of water. According to the packing, 1,6 diethylene glycol diacrylate, trimethylolpropane triacrylate and methyl trichlorosilane are adopted to react to modify calcium carbonate, so that the problem that calcium carbonate is easy to conglobate in a PVC product is solved, the oil absorption rate is reduced, the mechanical property of PVC is improved, and the toughness, the bending strength and the impact resistance are improved.

Description

technical field [0001] The invention belongs to the field of plastic processing, in particular to a surface-modified calcium carbonate filler and a preparation method thereof. Background technique [0002] Calcium carbonate is a widely used inorganic filler, which can be applied to plastic products, rubber products, coatings, adhesives, etc., especially light calcium carbonate, which has a great effect on the dimensional stability of PVC plastic products, and can Increasing the hardness of the product can also improve the surface gloss and surface smoothness of the product. Adding calcium carbonate to general PVC plastic products can improve the heat resistance. Since the whiteness of calcium carbonate is above 90%, it can also replace expensive white pigments and play a certain role in whitening. However, calcium carbonate has strong hydrophilicity. If the surface is not modified, the compatibility with the polymer matrix is ​​poor during the processing of polymer products...

Claims

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Application Information

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IPC IPC(8): C08K13/06C08K3/26C08K3/16C08K3/32C08K7/08C08K3/22C08L27/06
Inventor 陈永忠
Owner QINGYANG COUNTY YONGCHENG CALCIUM IND
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