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A mesoporous silicone resin flame retardant, preparation method and flame retardant composite material thereof

A technology of flame retardant composite material and mesoporous silicon, which is applied in the field of flame retardant composite material, mesoporous silicone resin flame retardant and preparation, can solve problems such as poor smoke suppression effect, and achieves improved smoke suppression effect and flame retardant performance. Good, high thermal stability effect

Active Publication Date: 2020-10-09
XIAMEN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most flame retardants will produce a lot of smoke during the combustion process, and the smoke suppression effect is not good. Therefore, the preparation of a new type of flame retardant with smoke suppression function is still the focus of research that needs to be explored now.

Method used

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  • A mesoporous silicone resin flame retardant, preparation method and flame retardant composite material thereof
  • A mesoporous silicone resin flame retardant, preparation method and flame retardant composite material thereof
  • A mesoporous silicone resin flame retardant, preparation method and flame retardant composite material thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] 1. Preparation of mesoporous silicon flame retardant:

[0033] (1) Add 4.7g tetraethyl silicate, 2.5g cetyltrimethylammonium bromide, 13.2g ammonia water, 50g water and 60g ethanol to the reaction vessel, stir at room temperature for 2h, then React in the reaction kettle at 105°C for 24h, filter to obtain a white precipitate, dry at 100°C and calcinate at 550°C for 6h to obtain mesoporous silica MCM-41; add 7.2g tetraethyl silicate, 3g polycyclo Ethylene oxide-polypropylene oxide-polyethylene oxide triblock copolymer, 87.5mL 2M hydrochloric acid and 22.5g water were stirred at 40°C for 20h, then reacted in a tetrafluoroethylene reactor at 100°C for 48h, The white precipitate was obtained by filtration, and after drying at 100°C, it was calcined at 550°C for 6h to obtain mesoporous silica SBA-15.

[0034] The pore structure of mesoporous silica MCM-41 and SBA-15 was observed by transmission electron microscopy, and the measured results were as follows figure 1 shown. ...

Embodiment 2

[0043] 1. Preparation of mesoporous silicon flame retardant:

[0044](1) Add 4.7g tetraethyl silicate, 2.5g cetyltrimethylammonium bromide, 13.2g ammonia water, 50g water and 60g ethanol to the reaction vessel, stir at room temperature for 2h, then React in the reaction kettle at 105°C for 24h, filter to obtain a white precipitate, dry at 100°C and calcinate at 550°C for 6h to obtain mesoporous silica MCM-41; add 7.2g tetraethyl silicate, 3g polycyclo Ethylene oxide-polypropylene oxide-polyethylene oxide triblock copolymer, 87.5mL 2M hydrochloric acid and 22.5g water were stirred at 40°C for 20h, then reacted in a tetrafluoroethylene reactor at 100°C for 48h, The white precipitate was obtained by filtration, and after drying at 100°C, it was calcined at 550°C for 6h to obtain mesoporous silica SBA-15.

[0045] (2) Add 1g of mesoporous silica, 1.5g of aminopropyltriethoxysilane, 100g of water and 50g of ethanol into the reaction vessel, stir at 75°C for 24h, then add 0.99g of ...

Embodiment 3

[0051] 1. Preparation of mesoporous silicon flame retardant:

[0052] (1) Add 4.7g tetraethyl silicate, 2.5g cetyltrimethylammonium bromide, 13.2g ammonia water, 50g water and 60g ethanol to the reaction vessel, stir at room temperature for 2h, then React in the reaction kettle at 105°C for 24h, filter to obtain a white precipitate, dry at 100°C and calcinate at 550°C for 6h to obtain mesoporous silica MCM-41; add 7.2g tetraethyl silicate, 3g polycyclo Ethylene oxide-polypropylene oxide-polyethylene oxide triblock copolymer, 87.5mL 2M hydrochloric acid and 22.5g water were stirred at 40°C for 20h, then reacted in a tetrafluoroethylene reactor at 100°C for 48h, The white precipitate was obtained by filtration, and after drying at 100°C, it was calcined at 550°C for 6h to obtain mesoporous silica SBA-15.

[0053] (2) Add 1g of mesoporous silica, 1g of aminopropyltriethoxysilane, 100g of water and 50g of ethanol to the reaction vessel, stir at 75°C for 24h, then add 0.55g of gra...

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Abstract

Disclosed are a mesoporous silicon resin flame retardant, a preparation method therefor and a flame retardant composite material thereof. The flame retardant is prepared by reacting graphene oxide bearing an epoxy group with an amino-modified mesoporous silicon dioxide, and then loading same with zinc hydroxystannate. By utilizing the shielding barrier effect of graphene, the adsorption of a combustible gas by the mesoporous silicon dioxide and the synergistic flame retardation effect of catalytic charring of the zinc hydroxystannate, the smoke suppressant and flame retardant properties of a polymer material can be improved. The preparation method therefor is simple and feasible, and has a broad application prospect in the field of the smoke suppression and flame retardation of polymers.

Description

technical field [0001] The invention belongs to the field of polymer flame retardant, and in particular relates to a mesoporous silicone resin flame retardant, a preparation method and a flame retardant composite material thereof. Background technique [0002] Due to the good mechanical, physical and chemical properties and corrosion resistance of polymer materials, they are widely used in automobiles, aerospace, electronic components and other fields. However, polymer materials are easy to burn, and toxic and harmful gases will be produced during the combustion process, so there is a huge fire hazard, which greatly limits the practical application of polymer materials. Therefore, it is extremely important to improve the smoke suppression and flame retardancy of polymer materials. important. Currently widely used flame retardants include phosphorus-based flame retardants, nitrogen-based flame retardants, silicon-based flame retardants, and inorganic flame retardants. Inorg...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08K9/12C08K7/26C08K3/04C08K3/24C08L63/00C08L77/00C08L55/02
CPCC08K3/24C08K7/26C08K9/12C08K3/042C08L63/00C08L77/00C08L55/02
Inventor 戴李宗王秀杨杰陈婷彭超华洪静申应军鹿振武陈国荣曾碧榕罗伟昂
Owner XIAMEN UNIV
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