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Preparation method of mercapto-alkene polymer flame-retardant system

A technology of polymer and mercapto group, which is applied in the field of preparation of mercapto-ene polymer flame retardant system, can solve the problems of flame retardancy and heat resistance defects, and achieve the effect of environmental friendliness, harmlessness and stable structure

Inactive Publication Date: 2015-08-26
NINGBO UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The Chinese invention patent application with application publication number CN103602037A "An Environmentally Friendly ABS Flame Retardant Alloy Material" (Application Number: 201310560727.0), and the Chinese Invention Patent Application with application publication number CN103540095A "A ABS Flame Retardant Modified Alloy Material" ( Application No.: 201310448713.X) discloses a flame retardant material respectively, but in some application fields with high flame retardant requirements, such as electrical equipment substrate or outer coating with high heat resistance, the above materials There are still defects in the flame retardancy and heat resistance

Method used

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  • Preparation method of mercapto-alkene polymer flame-retardant system

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Embodiment 1

[0033] The preparation method of mercapto-ene polymer flame retardant system in the present embodiment comprises the following steps:

[0034] (1) Preparation of polysiloxane

[0035] Measure 15mL of ethanol and 5mL of deionized water, add 0.2g of aminopropyltriethoxysilane, 0.2g of vinyltrimethoxysilane, and 2g of phenyltrimethoxysilane, and stir well; slowly add four Methylammonium hydroxide, control the pH value of the reaction solution to 8, stir and react at room temperature for 4h; after the reaction is completed, collect the product through a rotary evaporator, and finally dry it in vacuum at room temperature to obtain polysiloxane containing amino, vinyl, and phenyl alkyl;

[0036] (2) Carbon nanotube grafted polysiloxane

[0037] Mix 200 mg of carboxylated multi-walled carbon nanotubes with 20 mL of thionyl chloride and 1 mL of DMF, and perform ultrasonic treatment to fully disperse the carbon nanotubes into the solution, and react for 24 hours under magnetic stirri...

Embodiment 2

[0043] The preparation method of mercapto-ene polymer flame retardant system in the present embodiment comprises the following steps:

[0044] (1) Preparation of polysiloxane

[0045] Measure 30mL of ethanol and 10mL of deionized water, add 0.5g of aminopropyltrimethoxysilane, 0.2g of vinylmethyldimethoxysilane, and 1g of phenyltrimethoxysilane, and stir well; Add tetraethylammonium hydroxide, control the pH value of the reaction solution to 10, and stir the reaction at room temperature for 6 hours; after the reaction is completed, the product is collected by a rotary evaporator, and finally vacuum-dried at room temperature to obtain a polyamide containing amino groups, vinyl groups, and phenyl groups. Silicone;

[0046] (2) Carbon nanotube grafted polysiloxane

[0047] Mix 200 mg of carboxylated multi-walled carbon nanotubes with 20 mL of thionyl chloride and 1 mL of DMF and perform ultrasonic treatment to fully disperse the carbon nanotubes into the solution, and react for 3...

Embodiment 3

[0052] The preparation method of mercapto-ene polymer flame retardant system in the present embodiment comprises the following steps:

[0053] (1) Preparation of polysiloxane

[0054] Measure 30mL of ethanol and 10mL of deionized water, add 0.5g of aminopropyltrimethoxysilane, 0.2g of vinylmethyldimethoxysilane, and 1g of phenyltrimethoxysilane, and stir well; Add tetrabutylammonium hydroxide, control the pH value of the reaction solution to 10, and stir the reaction at room temperature for 6 hours; after the reaction is completed, collect the product through a rotary evaporator, and finally dry it in vacuum at room temperature to obtain polysiloxane containing amino, vinyl, and phenyl groups. alkyl;

[0055] (2) Carbon nanotube grafted polysiloxane

[0056] Mix 200 mg of carboxylated multi-walled carbon nanotubes with 20 mL of thionyl chloride and 1 mL of DMF and perform ultrasonic treatment to fully disperse the carbon nanotubes into the solution, and react for 30 h under ...

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Abstract

The invention relates to a preparation method of a mercapto-alkene polymer flame-retardant system. Polysiloxane and a carbon nano tube belong to fire retardants, and have flame retardant property; according to the preparation method provided by the invention, the polysiloxane is grafted on the carbon nano tube through a chemical bond; the flame retardant properties of the polysiloxane and the carbon nano tube are put into a full play due to the synergistic effect generated between the polysiloxane and the carbon nano tube; meanwhile, ethylene on the polysiloxane is also formed in the polysiloxane-grafted carbon nano tube, and then can participate in copolymerization of mercapto-alkene, so as to form a flame-retardant system; the char-forming property and the flame-retardant property of the polymer can be improved by phenyl in the polysiloxane in a combustion process, so that the flame-retardant property of the flame-retardant system is further improved; the prepared flame-retardant system has the advantages of being stable in structure, migration-resistant, friendly to environment and harmless; the overall structure of the flame-retardant system can be regulated and controlled by adjusting the proportions of various reactants, so as to adjust the flame-retardant property of the product according to the requirements.

Description

technical field [0001] The invention relates to a preparation method of a mercapto-ene polymer flame retardant system. Background technique [0002] Compared with the traditional acrylate photopolymerization, mercapto-ene photopolymerization has the advantages of no oxygen inhibition, small shrinkage rate, and small shrinkage stress, and has unique advantages in the preparation of cross-linked network polymer materials with various functions. The formed polymer has excellent properties such as adhesion, heat insulation, high refractive index, oxidation inertness, biodegradability and hydrolysis resistance, and has broad applications in high-performance adhesives, electronic optical materials, biomedical materials, etc. Application prospect. [0003] The Chinese invention patent application with application publication number CN103602037A "An Environmentally Friendly ABS Flame Retardant Alloy Material" (Application Number: 201310560727.0), and the Chinese Invention Patent Ap...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G75/04C08K9/06C08K7/24C08G77/26C08L83/08
Inventor 王江波黄梦娇方佳琳李永优
Owner NINGBO UNIVERSITY OF TECHNOLOGY
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