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A phosphorus-containing composite flame retardant with core-shell structure, its preparation method and application

A composite flame retardant and core-shell structure technology, which is applied in the field of phosphorus-containing composite flame retardants with core-shell structure, can solve the problems of high cost, respective enrichment of flame retardants, complicated formulations, etc., and achieves low cost and preparation process. Simple and easy to implement, enhance the effect of flame retardant effect

Active Publication Date: 2018-02-06
WUXI CHANGHONG MASTERBATCHES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above existing technologies all have the disadvantages of complex formula and high cost, and the flame retardants will be enriched to a certain extent in the actual polymer processing and combustion process, which will affect the balanced flame retardancy and durable flame retardancy of the polymer. Negative impact

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  • A phosphorus-containing composite flame retardant with core-shell structure, its preparation method and application
  • A phosphorus-containing composite flame retardant with core-shell structure, its preparation method and application
  • A phosphorus-containing composite flame retardant with core-shell structure, its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] The preparation method of the phosphorus-containing composite flame retardant of core-shell structure is as follows:

[0048] Disperse 15g of zirconium phosphate with a particle size of 1.0 μm in 300ml of alcohol-water mixed solvent (obtained by mixing ethanol and water at a mass ratio of 1:10), disperse while stirring and ultrasonic treatment, and the mechanical stirring speed is 300r / min, The power of ultrasonic treatment is 100kW, the temperature is controlled at room temperature, and the dispersion time is 120min. Then add 5ml of sucrose glyceride, add ammonia water to adjust the pH to 8, then add 10g of 3-aminopropyltrimethoxysilane, and heat up to 130°C for 5h. Filter and wash with ethanol and deionized water three times, dry to constant weight, then place in a muffle furnace for 5 hours at 300°C in a nitrogen atmosphere, and cool to room temperature to obtain a pale gray powder that is the core-shell structure. Phosphorous compound flame retardant.

[0049] The ...

Embodiment 2

[0054] The preparation method of the phosphorus-containing composite flame retardant of core-shell structure is as follows:

[0055] Disperse 15g of zirconium phosphate with a particle size of 1.0 μm in 300ml of alcohol-water mixed solvent (obtained by mixing ethanol and water at a mass ratio of 1:4), and disperse while stirring and ultrasonic treatment, with a mechanical stirring speed of 300r / min. The power of ultrasonic treatment is 100kW, the temperature is controlled at room temperature, and stirred for 120min. After that, add 5ml of octylphenol polyoxyethylene ether, then add ammonia water to adjust the pH of the solution to 8, and then add 15g of aminopropylmethyldiethoxysilane , raised the temperature to 100°C, reacted for 6h, filtered and washed three times with ethanol and deionized water respectively, dried in an oven to constant weight, then placed in a muffle furnace and treated at 400°C in a nitrogen atmosphere for 4h, cooled to room temperature, the obtained off...

Embodiment 3

[0058] The preparation method of the phosphorus-containing composite flame retardant of core-shell structure is as follows:

[0059] Disperse 15g of zirconium phosphate with a particle size of 1.0 μm in 300ml of alcohol-water mixed solvent (obtained by mixing ethanol and water at a mass ratio of 1:6), and disperse while stirring and ultrasonic treatment, with a mechanical stirring speed of 300r / min. The power of ultrasonic treatment is 100kW, the temperature is controlled at room temperature, and stirred for 120min. After that, add 5ml of sorbitan monostearate, add ammonia water to adjust the pH to 8, and then add 20g of 3-(methacryloyloxy)propyltrimethoxy base silane, raise the temperature to 80°C, and react for 10h. Afterwards, filter and wash with ethanol and deionized water three times respectively, dry in an oven to constant weight, then place in a muffle furnace for high temperature treatment at 500°C and a nitrogen atmosphere for 2 hours, and cool to room temperature. T...

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Abstract

The invention discloses a phosphorus-containing composite flame retardant of a core-shell structure and a preparation method and application thereof. The preparation method comprises the steps that a phosphorus based flame retardant is dispersed in a solvent, a surfactant is added, the pH value of the solution is adjusted to be 8-12, then, a silicon source is added, the temperature is increased to 60-180 DEG C for a reaction for 2-10 h, separation, washing and drying are carried out, then, treatment is carried out at the high temperature of 100-500 DEG C for 1-8 h, and the phosphorus-containing composite flame retardant of the core-shell structure is obtained. The phosphorus based flame retardant is used as the core material, a gel layer containing silicon is used as the shell layer material, and the phosphorus-containing composite flame retardant has the advantages of being good in flame retardance effect, well compatible with a polymer matrix, easy to prepare and low in cost and has the good mechanical performance and flame retardance when used for preparing flame retardant PC / ABC alloy.

Description

technical field [0001] The invention belongs to the technical field of flame retardant material modification, and relates to a phosphorus-containing composite flame retardant with a core-shell structure, a preparation method and an application thereof. technical background [0002] PC / ABS alloy combines the performance advantages of PC and ABS. Its heat resistance, impact strength and tensile strength are superior to those of a single polymer matrix, and its melt viscosity is lower than that of pure PC. The sensitivity of impact strength to product thickness is low, and it is widely used in the automotive industry, electronic appliances, mechanical products and other fields. In order to meet the flame retardant requirements of these fields and expand its application range, the flame retardant properties of PC / ABS alloys are gradually required. improve. [0003] At present, the flame retardants used to prepare flame-retardant PC / ABS alloys are mainly halogen-free and antimon...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L69/00C08L55/02C08K9/10C08K3/32B29C47/92B29C48/92
CPCB29C48/92B29C2948/9258B29C2948/92704C08L69/00C08L2201/02C08L2201/22C08L2205/03C08L55/02C08K9/10C08K2003/321
Inventor 雷彩红徐灵峰徐睿杰张丰
Owner WUXI CHANGHONG MASTERBATCHES
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