Modified calcium carbonate for wear-resistant rubber shoe soles and preparation method thereof

Abstract

The invention provides a modified calcium carbonate for wear-resistant rubber shoe soles, which is prepared from the following raw materials in parts by weight: 95-100 parts of ground calcium carbonate, 0.2-0.3 part of stearyl alcohol based polyethenoxy ether, 0.3-0.4 part of polyoxyethylene sorbitan fatty acid ester, 0.1-0.4 part of PE (polyethylene) wax, 0.5-0.8 part of triphenyl phosphite, 0.5-1 part of teflon micropowder, 0.1-0.3 part of ananti-aging agent 4020, 1-2 parts of ABS (acrylonitrile-butadiene-styrene) high rubber powder, 0.2-0.5 part of high-wear-resistance carbon black, 0.1-0.2 part of zirconium fluoride, 1-2 parts of dioctyl terephthalate (DOTP), 0.5-0.6 part of polyvinyl alcohol and 1-2 parts of a titanate coupling agent TMC-TTS. The preparation method comprises the following steps: drying calcium carbonate, proportionally and sequentially adding the other raw materials in batches, thoroughly mixing in a high-speed stirrer, drying and grinding. The modified calcium carbonate provided by the invention has the advantages of favorable dispersity and favorable wear resistance, and can lower the cost and enhance the working properties and wear resistance of shoe rubber when being used in shoe sole rubber materials.

Description

technical field [0001] The invention relates to the field of inorganic fillers, in particular to a modified calcium carbonate for wear-resistant rubber soles and a preparation method thereof. Background technique [0002] Ground calcium carbonate is a commonly used inorganic filler. It is widely used in rubber, plastics, coatings and other fields due to its wide source and low price. However, the surface of heavy calcium carbonate is hydrophilic and oleophobic, the specific surface area is large, the surface energy is high, and the particles are easily agglomerated. When directly or in large quantities filled in organic matrix materials, it is not only difficult to disperse evenly, but also has a weak binding force with the matrix. , leading to two-phase interface defects and some performance degradation of composite materials. Therefore, in order to broaden its application field, it is necessary to modify the surface of heavy calcium carbonate to make its surface li...

AI Technical Summary

Problems solved by technology

However, the surface of heavy calcium carbonate is hydrophilic and oleophobic, the specific surface area is large, the surface energy is high, and the particles are easily agglomerated. When directly or in large quantities filled in organic matrix materials, it is not only difficult to disperse evenly, but also has a weak binding force with the matrix. , resulting in defects at the two-phase interface and some performance degradation of the composite

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