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Modified calcium carbonate with oil-resistant and corrosion-resistant effect and preparation method thereof

An anti-corrosion and calcium carbonate technology, which is applied in the treatment of dyed high-molecular organic compounds, dyed low-molecular organic compounds, fibrous fillers, etc., can solve the problem of affecting the appearance, heat resistance and mechanical properties of materials, and the use of nano calcium carbonate temperature Small window, bubbles and other problems, to achieve the effect of strong binding force, low production cost, and increased dispersion performance

Active Publication Date: 2014-10-01
淮南市精兴生物科技股份有限公司
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Problems solved by technology

However, the addition of dispersants and surface modifiers greatly reduces the temperature window of nano-calcium carbonate, because commonly used dispersants and coupling agents are easy to decompose at high temperatures, causing bubbles, cracks, defects, deformation, etc., thus Affect the appearance, heat resistance and mechanical properties of materials

Method used

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  • Modified calcium carbonate with oil-resistant and corrosion-resistant effect and preparation method thereof

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[0012] specific implementation plan

[0013] The present invention will be described in detail below through specific examples.

[0014] A modified calcium carbonate with oil-resistant and anti-corrosion effects, prepared from the following raw materials in parts by weight (kg): calcium carbonate 85, hollow microspheres 3, white carbon black 2, coarse aggregate 2, coumarone 3, Fluorine rubber 5, nitrile rubber 4, accelerator Na-220.8, antioxidant DLTP1, polyurethane 5, sepiolite 2, silicon dioxide 2, modified titanium dioxide 3;

[0015] The modified titanium dioxide is made of the following raw materials in parts by weight (kg): nano-titanium dioxide 50, magnesium hydroxide 2, ethyl cellulose 4, n-butyl acrylate 5, quartz powder 3, polyisobutylene 3, alkyd resin 3 , terpineol 2, water 50; the preparation method is to first add n-butyl acrylate, nano-titanium dioxide, magnesium hydroxide, ethyl cellulose, and water to stir evenly to form a suspension, and dry it at 45-50°C un...

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Abstract

The invention discloses modified calcium carbonate with an oil-resistant and corrosion-resistant effect. Modified calcium carbonate is characterized in that modified calcium carbonate is prepared from the following raw materials in parts by weight: 85-90 parts of calcium carbonate, 3-5 parts of hollow micro-bead, 2-2.5 parts of white carbon black, 2-3 parts of coarse aggregate, 3-5 parts of coumarone, 5-7 parts of fluororubber, 4-6 parts of butadiene-acrylonitrile rubber, 0.8-1.2 parts of promoter Na-22, 1-2 parts of antioxidant DLTP (dilauryl thiodipropionate), 5-7 parts of polyurethane, 2-4 parts of sepiolite, 2-3 parts of silicon deoxide and 3-4 parts of modified titanium dioxide. High-molecular fluororubber is added to coat the surface of modified calcium carbonate; modified calcium carbonate disclosed by the invention is reasonable in formula, oil-resistant and corrosion-resistant, is assisted by white carbon black so as to increase the oil resistance, is added with an antioxidant component and modified titanium dioxide so as to increase the dispersing performance, and has good flowability and relatively strong binding force; a filling material can be used as an auxiliary agent for plastics, rubber and paper-making; modified calcium carbonate is low in cost.

Description

technical field [0001] The invention relates to the field of industrial fillers, in particular to a modified calcium carbonate with oil-resistant and anti-corrosion effects and a preparation method thereof. Background technique [0002] Calcium carbonate is a very important functional inorganic filler, which is widely used in industrial fields such as plastics, rubber, coatings and papermaking. In the application field of calcium carbonate, most products belong to the category of polymers, such as plastics, rubber, adhesives, coatings, etc., and occupy an important market share. Modifiers play an important role in the performance and application of nano calcium carbonate. For example, the addition of dispersant can reduce the agglomeration of nanoparticles and improve the dispersion; the addition of surface modifier can improve the compatibility of nano-calcium carbonate in the polymer system. It can be seen that dispersants and surface modifiers are crucial for the applic...

Claims

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Application Information

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IPC IPC(8): C09C1/02C09C1/36C09C3/10C09C3/08C09C3/04
Inventor 朱蕊许小林
Owner 淮南市精兴生物科技股份有限公司
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