Reinforcing and toughening calcium carbonate filler and preparation method thereof

A calcium carbonate filler, strengthening and toughening technology, applied in the field of plastic processing, can solve the problems of inability to change the surface hydrophilic and oleophobic properties, easy agglomeration of calcium carbonate, etc., to achieve enhanced rigidity, uniform surface modification, increased strength and toughness. Effect

Inactive Publication Date: 2014-12-10
CHIZHOU RUIXIANG CALCIUM IND
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Problems solved by technology

However, micronized calcium carbonate is easy to agglomerate, an

Method used

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Embodiment Construction

[0014] A reinforced and toughened calcium carbonate filler, made of the following raw materials in parts by weight (kg): calcium sulfate whisker 6, polyol laurate 2.5, silane coupling agent KH-550 2.5, molybdenum trioxide 1.1, iron oxide 3.5, shea butter 1.2, honey 0.3, amidopropyl betaine 0.6, aluminum potassium sulfate 1, morpholine 2.5, sodium sulfate 0.4, urea 0.4, alkanolamide 0.2, titanium dioxide 3.5, light calcium carbonate 83, auxiliary Agent 14, 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 gl...

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Abstract

The invention discloses a reinforcing and toughening calcium carbonate filler. The reinforcing and toughening calcium carbonate filler is prepared from the following raw materials in parts by weight: 5-7 parts of calcium sulfate whiskers, 2-3 parts of polyol ester laurate, 2-3 parts of a silane coupling agent KH-550, 1-1.3 parts of molybdenum trioxide, 3-4 parts of iron oxide, 1-1.4 parts of shea butter, 0.3-0.4 part of honey, 0.5-0.8 part of amide propyl glycine betaine, 0.8-1.2 parts of aluminum potassium sulfate, 2-3 parts of morpholine, 0.3-0.5 part of sodium sulfate, 0.3-0.5 part of urea, 0.1-0.2 part of alkanolamide, 3-4 parts of titanium dioxide, 80-85 parts of light calcium carbonate, 13-16 parts of auxiliaries and 120-140 parts of water. The reinforcing and toughening calcium carbonate filler is unique in formula process and uniform in calcium carbonate surface modification and is capable of greatly improving the PVC performance, greatly improving the impact toughness of the PVC and strengthening the rigidity, the heat resistance and the processing performance of the PVC material after being used for a PVC (polyvinyl chloride) filler additive; by adding the calcium sulfate whiskers, the strength and the toughness of PVC are greatly increased. And moreover, the auxiliaries can be used for increasing the wettability of calcium carbonate in PVC, so that the defects of PVC are reduced.

Description

technical field [0001] The invention belongs to the field of plastic processing, in particular to a reinforced and toughened 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 ...

Claims

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Application Information

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IPC IPC(8): C08K13/06C08K3/26C08K7/08C08K3/22C08K3/30C08K3/32C08L27/06
Inventor 高尔羊
Owner CHIZHOU RUIXIANG CALCIUM IND
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