Plastic-used high-flowability modified calcium carbonate and preparation method thereof

Abstract

Plastic-used high-flowability modified calcium carbonate comprises the following raw materials by weight: 0.3 to 0.4 part of sodium bicarbonate, 0.5 to 0.8 part of stannous chloride, 1 to 1.3 parts of sodium polyacrylate, 2 to 3 parts of nano iron-ore slag, 1 to 2 parts of isopropyl palmitate, 0.5 to 0.8 part of pre-gelatinized starch, 0.7 to 1 part of magnesium stearate, 0.5 to 0.8 part of cerium dioxide, 200 to 220 parts of heavy calcium carbonate, 5 to 9 parts of additives, and 20 to 30 parts of water. The modified calcium carbonate is simple in modification method, and is uniformly modified, and is higher in flowability and compressibility due to the addition of stannous chloride, isopropyl palmitate, pre-gelatinized starch, white dextrin and magnesium stearate, thereby ensuring uniform piece weight during a tabletting step and reducing the size of tablets under the same condition; due to the addition of cerium dioxide, the oxidation resistance and the abrasion resistance of plastic adopting the high-flowability modified calcium carbonate can be enhanced.

Description

technical field [0001] The invention belongs to the field of plastics, in particular to a high-fluidity modified calcium carbonate for plastics and a preparation method thereof. Background technique [0002] Plastics are widely used and are indispensable components in home appliances, automobiles, mobile phones, PCs, medical devices, and lighting appliances. In recent years, my country's economy has achieved sustained and stable growth. Industries such as home appliances, automobiles, mobile phones, PCs, and medical equipment have benefited from a favorable external environment and have also achieved rapid development. The development of downstream industries has further stimulated the demand for plastics. Compared with the advanced level, there is still a certain gap in my country's synthetic resin industry. The quantity of some domestic high-end products cannot meet the market demand, and the quality needs to be improved and improved. At present, the performance defects of...

AI Technical Summary

Problems solved by technology

In recent years, my country's economy has achieved sustained and stable growth. Industries such as home appliances, automobiles, mobile phones, PCs, and medical equipment have benefited from a favorable external environment and have also achieved rapid development. The development of downstream industries has further stimulated the demand for plastics. Compared with the advanced level, there is still a certain gap in my country's synthetic resin industry. The quantity of some domestic high-end products cannot meet the market demand, and the quality needs to be improved and improved.

At present, the performance defects of plastics are manifested in wear resistance, aging resistance, oil resistance, high temperature resistance, strength, chemical stability, bending strength, creep performance, etc., which need continuous improvement