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Flame-retardant and antistatic EVA (ethyl vinyl acetate) foam composite material and preparation method thereof

A flame-retardant, anti-static, composite material technology, applied in the field of flame-retardant and anti-static EVA foam composite material and its preparation, can solve the problems of flammability and intensified combustion degree, achieve excellent smoke suppression effect, small compression deformation, protection effects of the environment

Active Publication Date: 2018-12-11
FUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The most deadly thing is that the flammability and burning degree of EVA foam material are further aggravated due to the existence of its porous structure.

Method used

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  • Flame-retardant and antistatic EVA (ethyl vinyl acetate) foam composite material and preparation method thereof
  • Flame-retardant and antistatic EVA (ethyl vinyl acetate) foam composite material and preparation method thereof
  • Flame-retardant and antistatic EVA (ethyl vinyl acetate) foam composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A method for preparing flame retardant and antistatic EVA foam composite material, the concrete steps are:

[0038] 1) Add 50 mg of graphene oxide (GO) and 15 mg of polyvinylpyrrolidone (PVP) into 50 mL of deionized water, stir for 30 min, add 50 mg of zinc hexahydroxystannate, stir evenly, and then transfer to a high-pressure reactor , the reaction was stirred at 160 °C for 6 h, suction filtered, and lyophilized;

[0039]2) Preparation of polystyrene nanosphere (PS) template: remove 20mL styrene with 5% sodium hydroxide solution to remove polymerization inhibitor, add 2mL acrylic acid to 125mL deionized water and mix evenly; then Add 0.145g of ammonium persulfate (APS) into the above mixed solution, stir vigorously, under nitrogen protection, heat to 75°C and continue to react for 24h, wash the product with deionized water and absolute ethanol and dry it, and use the dried powder Concentrated sulfuric acid was spheroidized at 45°C for 24 hours, the product was washed ...

Embodiment 2

[0047] A method for preparing flame-retardant and antistatic EVA foam composite material, the specific steps are:

[0048] 1) Add 50 mg of graphene oxide (GO) and 15 mg of polyvinylpyrrolidone (PVP) into 50 mL of deionized water, stir for 30 minutes, then add 50 mg of zinc hexahydroxystannate, stir well and then transfer to the autoclave , stirred and reacted at 160°C for 6h, filtered with suction, and freeze-dried;

[0049] 2) Preparation of polystyrene nanosphere (PS) template: remove 20mL styrene with 5% sodium hydroxide solution to remove polymerization inhibitor, add 2mL acrylic acid to 125mL deionized water and mix evenly; then Add 0.145g of ammonium persulfate (APS) into the above mixed solution, stir vigorously, under nitrogen protection, heat to 75°C and continue to react for 24h, wash the product with deionized water and absolute ethanol and dry it, and use the dried powder Concentrated sulfuric acid was spheroidized at 45°C for 24 hours, the product was washed with...

Embodiment 3

[0057] A method for preparing flame-retardant and antistatic EVA foam composite material, the specific steps are:

[0058] 1) Add 50 mg of graphene oxide (GO) and 15 mg of polyvinylpyrrolidone (PVP) into 50 mL of deionized water, stir for 30 minutes, then add 50 mg of zinc hexahydroxystannate, stir well and then transfer to the autoclave , stirred and reacted at 160°C for 6h, filtered with suction, and freeze-dried;

[0059] 2) Preparation of polystyrene nanosphere (PS) template: remove 20mL styrene with 5% sodium hydroxide solution to remove polymerization inhibitor, add 2mL acrylic acid to 125mL deionized water and mix evenly; then Add 0.145g of ammonium persulfate (APS) into the above mixed solution, stir vigorously, under nitrogen protection, heat to 75°C and continue to react for 24h, wash the product with deionized water and absolute ethanol and dry it, and use the dried powder Concentrated sulfuric acid was spheroidized at 45°C for 24 hours, the product was washed with...

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Abstract

The invention discloses a flame-retardant and antistatic EVA (ethyl vinyl acetate) foam composite material and a preparation method thereof, and belongs to the field of macromolecular composite foam materials. The flame-retardant and antistatic EVA foam composite material comprises the following components of vinyl-vinyl acetate copolymer, a composite flame retardant agent, an antistatic agent, afoaming agent AC, stearic acid, zinc stearate, zinc oxide, and dicumyl peroxide, wherein the composite flame retardant agent is graphene-coated zinc hexahydroxystannate; the antistatic agent is a nitrogen-doped graphene nanometer hollow spehre. The flame-retardant and antistatic EVA foam composite material has the advantages that by adopting the novel composite flame retardant agent and the novelantistatic agent, the excellent flame-retardant property and antistatic property are simultaneously realized; the formula is scientific and reasonable, the certain innovativeness is realized, and thetechnology process is simple and practical.

Description

technical field [0001] The invention belongs to the field of polymer composite foam materials, in particular to a flame-retardant and antistatic EVA foam composite material and a preparation method thereof. Background technique [0002] EVA foam composite material is widely used in shoe materials, construction, packaging and other fields due to its advantages of low density, strong cushioning and shock absorption ability, and low temperature resistance. Since EVA material has electrical insulation like most polymer plastics, the volume resistivity can reach 10 14 Ω or more. Such a high volume resistivity will seriously restrict its application in the packaging of some special products, such as military weapons, electronic components, instrumentation and other products. Due to static electricity, fire may occur in severe cases. Therefore, the study of antistatic EVA foam will make it have important application value in the fields of packaging and transportation. EVA is ve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08K13/06C08K9/10C08K7/24C08K5/09C08K5/098C08K3/22C08K5/14C08J9/10
CPCC08J9/0023C08J9/0061C08J9/0066C08J9/0071C08J9/103C08J2203/04C08J2323/08C08K3/042C08K5/09C08K5/098C08K5/14C08K7/24C08K9/10C08K13/06C08K2003/2296C08K2201/011
Inventor 郑玉婴丘永兴
Owner FUZHOU UNIV
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