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

A functional masterbatch and gel method technology, applied in the field of flame retardants, can solve the problems of high energy consumption, high equipment cost, cumbersome process, etc., and achieve the effect of less equipment investment, low equipment cost and energy consumption, and simple process

Inactive Publication Date: 2018-01-19
CHENDU NEW KELI CHEM SCI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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-s

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0025] Example 1

[0026] A method for preparing flame retardant functional masterbatch by gel method, which is carried out in a reaction kettle with heating function, mechanical stirring and ultrasonic oscillator, firstly preparing microcapsule phosphorus-based flame retardant, and then preparing flame retardant functional masterbatch:

[0027] a, in the case of opening the mechanical stirring of the reaction kettle and the ultrasonic oscillator, the trioctyl phosphate is evenly dispersed in toluene, then KH550 is added, and the weight ratio of it to the trioctyl phosphate is 1:0.5, and then the triethyl phosphate is added. Amine in a weight ratio of 1:2 to KH550. After the reaction at 45°C for 2 hours, mechanical stirring and ultrasonication were stopped, cooled to room temperature, vacuum filtered, and vacuum dried at 0.05Pa and 75°C for 6 hours to obtain a powdered phosphorus-based flame retardant microcapsule flame retardant. .

[0028] b. Under the situation of turning...

Example Embodiment

[0031] Example 2

[0032] The preparation of a flame retardant functional masterbatch prepared by a gel method is carried out in a reaction kettle with a heating function, mechanical stirring and an ultrasonic oscillator, firstly preparing a microcapsule phosphorus-based flame retardant, and then preparing a flame retardant functional masterbatch:

[0033] a, in the case of opening the mechanical stirring of the reactor and the ultrasonic oscillator, ammonium phosphate is uniformly dispersed in toluene, then KH560 is added, and the weight ratio of it and ammonium phosphate is 1:0.5, and then triethylamine is added, which is combined with ammonium phosphate. The weight ratio of KH560 is 1:3. After the reaction at 60°C for 3 hours, mechanical stirring and ultrasonication were stopped, cooled to room temperature, vacuum filtered, and vacuum dried at 0.07Pa and 75°C for 12 hours to obtain a powdered phosphorus-based flame retardant microcapsule flame retardant .

[0034] b. Unde...

Example Embodiment

[0035] Example 3

[0036] The preparation of a flame retardant functional masterbatch prepared by a gel method is carried out in a reaction kettle with a heating function, mechanical stirring and an ultrasonic oscillator, firstly preparing a microcapsule phosphorus-based flame retardant, and then preparing a flame retardant functional masterbatch:

[0037] a, in the case of opening the mechanical stirring of the reaction kettle and the ultrasonic oscillator, the ammonium dihydrogen phosphate is uniformly dispersed in the toluene and the xylene mixed solution, and then KH560 is added, and the weight ratio of it and the ammonium dihydrogen phosphate is 1:1.5 , and then add alkoxypyridine, and its weight ratio to KH570 is 1:4. After 4 hours of reaction at 75°C, mechanical stirring and ultrasonication were stopped, cooled to room temperature, vacuum filtered, and vacuum dried at 0.08Pa and 75°C for 24 hours to obtain a powdered phosphorus-based flame retardant microcapsule flame r...

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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...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08K3/22C08K5/521C08K3/32B01J13/02
Inventor 陈庆昝航
Owner CHENDU NEW KELI CHEM SCI CO LTD
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