Bismaleimide modified calcium carbonate filler with functions of sound absorption and sound isolation

Abstract

The invention relates to a bismaleimide modified calcium carbonate filler with the functions of sound absorption and sound isolation. The filler is prepared from the following raw materials in parts by weight: 200 parts of calcium carbonate powder, 4 to 5 parts of acrylic ester rubber powder, 1 to 2 parts of quartz powder, 1 to 2 parts of spraying carbon black, 80 to 100 parts of hydrogen peroxide, 8 to 10 parts of peroxidase, 6 to 8 parts of polyethylene glycol octylphenol ether, 200 to 250 parts of dimethylformamide, 1 to 2 parts of 5-hydroxylevulinic acid, 2 to 3 parts of 4,4-diphenylmethane bimaleimide, 2 to 3 parts of ethyl malonate, 0.5 to 1 part of catalysts, 1 to 2 parts of hexadecyl trimethyl ammonium bromide, 1 to 2 parts of titanium dioxide, 2 to 3 parts of dimethyl octyltin mercaptide, 2 to 3 parts of sodium lignin sulfonate, 2 to 3 parts of hydroxyl silicone oil and a proper amount of acetone and de-ionized water. The filler has the advantages that the added acrylic ester rubber powder, the quartz powder and the spraying carbon black are used in a matched way, so that the functions of damping vibration attenuation, sound absorption and sound isolation of calcium carbonate are greatly enhanced.

Description

technical field [0001] The invention relates to a calcium carbonate filler, in particular to a sound-absorbing and sound-insulating bismaleimide-modified calcium carbonate filler. Background technique [0002] Calcium carbonate is an important class of functional inorganic fillers. It has the advantages of low price, abundant reserves, stable performance, easy processing, and non-toxicity. It can significantly improve the processing performance and physical properties of materials and reduce production costs. It is widely used In the fields of plastics, rubber, coatings, papermaking, etc., because calcium carbonate is a hydrophilic compound, there are defects such as insufficient compatibility with polymers and poor dispersion in practical applications, and satisfactory filling and reinforcing effects cannot be achieved. Therefore, Calcium carbonate needs to be modified to improve its dispersion and compatibility in various materials, so as to achieve the effect of improving...

AI Technical Summary

Problems solved by technology

Although the dispersibility of the calcium carbonate filler obtained by this method has been improved, the application performance has not been improved yet.