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Phosphorus-containing composite flame retardant of core-shell structure and preparation method and application thereof

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

Active Publication Date: 2016-09-28
WUXI CHANGHONG MASTERBATCHES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Benefits of technology

This patented technology describes an improved method for coating fire protection materials onto plastic surfaces without adding expensive chemical agents like halogenated compounds (HBC). Silicone containing oxygen atoms creates strong hydrophilicity along its edges, making it easier to mix them together easily evenly overcomes any issues such as uneven distribution caused by gravity flow. Additionally, this new composition improves resistance against burning compared to existing compositions due to increased levels of silane groups within the outermost part of the particle's surface layer. Overall, these technical improvements improve efficiency and quality control properties of fire preventive products.

Problems solved by technology

This patented technical problem addressed by this patents relates to finding better ways for making flammability resisting (FR) or shock reinforced plastic compositions containing polycarbonamide resin without adding harmful chemical substance like chlorine compounds into their composition.

Method used

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  • Phosphorus-containing composite flame retardant of core-shell structure and preparation method and application thereof
  • Phosphorus-containing composite flame retardant of core-shell structure and preparation method and application thereof
  • Phosphorus-containing composite flame retardant of core-shell structure and preparation method and application thereof

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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

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Claims

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Application Information

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Owner WUXI CHANGHONG MASTERBATCHES