Method for preparing flame-retarding functional master batch by gel method

Abstract

The invention belongs to the field of flame retardants and in particular relates to a method for preparing a flame-retarding functional master batch by a gel method. The method is characterized by comprising the following steps: firstly, preparing a microcapsule phosphorus-based flame retardant; then adding an aluminum nitrate solution, tetrabutyl titanate and ammonia water into a high-speed mixer; then adding aluminum oxide filling and the microcapsule phosphorus-based flame retardant and the like and mixing at a high speed to form a gel mixture; uniformly dispersing the microcapsule phosphorus-based flame retardant into the gel and firmly adsorbing; finally, drying the obtained mixed gel and crushing to obtain the flame-retarding functional master batch. The method provided by the invention has simple steps; the gel is rapidly prepared and can be effectively dispersed; the master batch can be prepared without the need of melting, extruding and granulating; the method has the advantages of low equipment cost and low energy consumption and is suitable for large-scale production.

Description

technical field [0001] The invention belongs to the field of flame retardants, and in particular relates to a method for preparing a flame retardant functional masterbatch by a gel method. Background technique [0002] With the advancement of science and technology and the improvement of living standards, polymer materials, especially synthetic polymers: such as plastics and rubber, are becoming more and more important in people's lives, and their applications are showing a trend of expanding year by year. However, most organic polymer materials have different degrees of flammability in the air. In order to realize their applications in many industries such as military, aerospace, transportation, electric power and civil use, their flame-retardant modification has become a new topic. At present, the ideal method of flame retardant modification of plastics is often to improve the fire resistance of plastics by adding products such as flame retardants or flame retardant master...

AI Technical Summary

Problems solved by technology

[0005] The traditional flame retardant masterbatch technology is mature, but its production process requires the use of high-speed kneaders and screw extruders, which is not only cumbersome, but also has high equipment costs and high energy consumption.