Modified calcium carbonate for uvioresistant cable material and preparation method thereof

Abstract

The invention discloses modified calcium carbonate for an uvioresistant cable material and a preparation method thereof. The modified calcium carbonate is characterized by being prepared from, by weight, 100-150 parts of calcium carbonate, 30-50 parts of sodium oleate, 0.3-0.7 part of sodium dodecyl benzene sulfonate, 1-3 parts of sodium bicarbonate, 4-8 parts of styrene, 0.02-0.05 part of potassium persulfate, 3-5 parts of gas phase silica, 2-3 parts of organic bentonite, 2-4 parts of emulsified paraffin, 2-4 parts of carbon nano powder, 2-3 parts of sodium lignosulphonate and an appropriate amount of deionized water. The added carbon nano powder, the added sodium lignosulphonate and the added emulsified paraffin improve the dispersibility of calcium carbonate powder, and the modified calcium carbonate is good in fluidity and excellent in uvioresistant performance and can prolong the service life of the cable material when serving as the packing of the cable material. The preparation method is simple, raw material sources are wide, the cost is low, and the modified calcium carbonate has very good strengthening effect when serving as the packing of the cable material, and is worthy of popularization.

Description

technical field [0001] The invention relates to the field of industrial fillers, in particular to a modified calcium carbonate for anti-ultraviolet cable materials and a preparation method thereof. Background technique [0002] As a filler for rubber and plastic products, calcium carbonate can improve the heat resistance, wear resistance, dimensional stability, rigidity and processability of the product, and reduce the cost of the product, but its surface has hydroxyl groups with strong hydrophilicity. It presents a strong alkalinity. This hydrophilic and oleophobic property makes the affinity between calcium carbonate and organic polymers poor, and it is easy to form aggregates, resulting in uneven dispersion in the polymer, resulting in two materials. The effect of direct application is not good, and calcium carbonate is used as a filler, and its acid resistance, smoothness, whiteness and other properties need to be further improved. Therefore, in order to improve the rein...

AI Technical Summary

Problems solved by technology

[0002] As a filler for rubber and plastic products, calcium carbonate can improve the heat resistance, wear resistance, dimensional stability, rigidity and processability of the product, and reduce the cost of the product, but its surface has hydroxyl groups with strong hydrophilicity. It presents a strong alkalinity. This hydrophilic and oleophobic property makes the affinity between calcium carbonate and organic polymers poor, and it is easy to form aggregates, resulting in uneven dispersion in the polymer, resulting in two materials. The effect of direct application is not good, and calcium carbonate is used as a filler, and its acid resistance, smoothness, whiteness and other properties need to be further improved. Therefore, in order to improve the reinforcing effect of calcium carbonate and the dispersion performance in composite materials And the physical properties of modified calcium carbonate filled composite materials, it is necessary to use different surface modifiers and treatment methods to modify the surface of calcium carbonate powder, thereby broadening the application field of calcium carbonate