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Graphene flame-retardant elastic composite, composite film and preparing method of composite film

An elastic composite material and graphene technology, applied in the direction of coating, etc., can solve the problems of poor bending resistance, spontaneous combustion, etc., and achieve the effect of overcoming poor bending resistance, simple process, and mature and stable construction technology

Inactive Publication Date: 2018-07-31
中金态和(武汉)石墨烯科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to overcome the problems of poor bending resistance of existing electrothermal film products and potential safety hazards such as spontaneous combustion due to local overheating

Method used

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  • Graphene flame-retardant elastic composite, composite film and preparing method of composite film

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The present embodiment provides a kind of preparation method of graphene flame retardant elastic composite film, specifically comprises the following steps:

[0029] (1) 20g thermoplastic polyolefin elastomer TPO, 200g solvent N-methylpyrrolidone, 25g flame retardant Mg 2 Al-TCP (magnesium aluminum tetrachlorophthalate) was mixed and stirred, dissolved and homogeneously dispersed for 0.5 h at a rotational speed of 10,000 rpm and a temperature of 60° C., to prepare a flame-retardant elastic resin slurry.

[0030] (2) Take 5g of graphene microchips and add them to 95g of N-methylpyrrolidone as a solvent and 1g of sodium dodecylbenzenesulfonate as a dispersant, mix and stir, then put them into an ultrasonic machine with a set power of 80w and a time of 30min Ultrasonic dispersion is carried out to obtain a graphene microsheet dispersion.

[0031] Wherein, the graphene microflakes are prepared by the compression ignition method, and the specific process is as follows:

[...

Embodiment 2

[0037] The present embodiment provides a kind of preparation method of graphene flame retardant elastic composite film, specifically comprises the following steps:

[0038] (1) Mix and stir 20g thermoplastic polyurethane elastomer TPU, 200g solvent N,N-dimethylformamide, 30g composite flame retardant zinc borate and aluminum hydroxide (mass ratio 2:1), at a speed of 12000rpm, The temperature was 60° C. for 0.5 h to dissolve and disperse homogeneously to prepare a flame retardant elastic resin slurry.

[0039] (2) Take 10g of graphene microchips and add them to 90g of N,N-dimethylformamide as a solvent and 2g of dispersant polyvinylpyrrolidone, mix and stir, then put them into an ultrasonic machine with a set power of 80w and a time of 60min. Ultrasonic dispersion to obtain a graphene microplatelet dispersion.

[0040] Wherein, the graphene microchips are prepared by compression ignition method, and the specific process is consistent with that of Example 1.

[0041] (3) Mix a...

Embodiment 3

[0045] The present embodiment provides a kind of preparation method of graphene flame retardant elastic composite film, specifically comprises the following steps:

[0046] (1) Mix and stir 20g thermoplastic styrene elastomer TPS, 200g solvent propylene glycol methyl ether acetate, 20g composite flame retardant triphenyl phosphate and red phosphorus (mass ratio 1:1), at a speed of 13000rpm, temperature Dissolving and dispersing homogeneously for 0.5 h at 80° C. to prepare flame retardant elastic resin slurry.

[0047] (2) Take 15g of graphene microchips and add them to 85g of dimethyl sulfoxide as a solvent and 2g of dispersant sodium dodecylbenzenesulfonate, mix and stir, then put them into an ultrasonic machine with a set power of 80w and a time of 60min Ultrasonic dispersion is carried out to obtain a graphene microsheet dispersion.

[0048] Wherein, the graphene microchips are prepared by compression ignition method, and the specific process is consistent with that of Exa...

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Abstract

The invention provides a graphene flame-retardant elastic composite. The composite is characterized by being prepared from, by mass, 0.5-10% of graphene microchips, 20-35% of fire retardant, 10-30% ofthermoplastic elastomer, 30-60% of solvent and 0.1-1.5% of auxiliaries. In addition, the invention further provides a composite film containing the graphene flame-retardant elastic composite and a preparing method of the composite film. The composite obtained with the thermoplastic elastomer, the fire retardant and the solvent with different elasticity moduli as the film forming materials and thegraphene microchips as the conductive filler has the advantages of flame retardance, high conductivity, bendability, high adhesiveness and the like, and therefore the composite film prepared from thecomposite also has the advantages of flame retardance, high conductivity, bendability, high adhesiveness and the like, and the composite film can be applied in the fields of electromagnetic shielding, far infrared electric heating products, flexible conductive electrodes and the like, is wide in application range, and effectively overcome the problems that an existing electric heating film product is poor in bending resistance and potential safety hazards such as spontaneous combustion are caused by local overheating.

Description

technical field [0001] The invention belongs to the technical field of graphene composite materials, and in particular relates to a graphene flame-retardant elastic composite material, a composite film and a preparation method thereof. Background technique [0002] Electric heating heating technology has the advantages of no water consumption, energy saving, land saving, material saving, environmental protection, arbitrary switch adjustment, convenient household metering, etc., and is in line with the low-carbon direction. Electric heating technology usually uses electric heating film, which is a semi-permeable polyester film that can generate heat after being energized. It is processed by conductive special ink and metal current-carrying strips, and hot-pressed between insulating polyester films. It is widely used in modern building heating engineering, home improvement floor heating engineering and other fields. [0003] At present, the common electric heating products ar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/02C08L75/04C08L25/04C08K13/02C08K3/04C08K3/38C08K3/22C08K5/098C08K3/02C08K5/523C08J7/04C08L67/02
CPCC08J7/0427C08J2367/02C08J2423/02C08J2425/04C08J2475/04C08K3/02C08K3/04C08K3/22C08K3/38C08K5/098C08K5/523C08K13/02C08K2003/026C08K2003/2227C08K2003/387C08K2201/003C08L23/02C08L75/04C08L25/04
Inventor 甘鹏飞
Owner 中金态和(武汉)石墨烯科技股份有限公司
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