A halogen-free flame retardant low-voltage electric heating film and preparation method thereof

An electric heating film and low-voltage technology, which is applied in the field of halogen-free flame-retardant low-voltage electric heating film and its preparation, can solve problems that threaten human life safety and economic losses.

Active Publication Date: 2020-10-27
UNIV OF SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Once burned, it will seriously threaten the safety of human life and cause huge economic losses

Method used

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  • A halogen-free flame retardant low-voltage electric heating film and preparation method thereof
  • A halogen-free flame retardant low-voltage electric heating film and preparation method thereof
  • A halogen-free flame retardant low-voltage electric heating film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The halogen-free flame-retardant low-voltage electric heating film synthesized in this example is based on a polymer material, and the conductive filler and the halogen-free flame retardant wrapped by the conductive filler are used synergistically, and finally the halogen-free flame-retardant low-voltage electric heating film prepared by mechanical processing membrane. Among them, ethylene-vinyl acetate is used as the polymer matrix, ammonium polyphosphate is used as the halogen-free flame retardant, and carbon nanotubes are used as the conductive filler for wrapping the halogen-free flame retardant. The halogen-free flame-retardant low-voltage electric heating film is prepared according to the following steps:

[0031] 1. At 45°C, add 4.75g of ammonium polyphosphate to a three-necked flask equipped with a stirrer, reflux condenser and dry nitrogen, and disperse it into a mixed solvent of 300ml of water and ethanol (wherein water and ethanol The volume ratio is 1:2), th...

Embodiment 2

[0041] The halogen-free flame-retardant low-voltage electric heating film synthesized in this example is based on a polymer material, and the conductive filler and the halogen-free flame retardant wrapped by the conductive filler are used synergistically, and finally the halogen-free flame-retardant low-voltage electric heating film prepared by mechanical processing membrane. Among them, polyethylene octene copolymer is used as the polymer matrix, inorganic aluminum hypophosphite is used as the halogen-free flame retardant, and graphene nanosheets are used as the conductive filler for wrapping the halogen-free flame retardant. The halogen-free flame-retardant low-voltage electric heater is prepared according to the following steps membrane:

[0042] 1. At 60°C, add 4.75g of inorganic aluminum hypophosphite to a three-necked flask equipped with a stirrer, reflux condenser and dry nitrogen, and disperse it into a mixed solvent of 300ml of water and ethanol (wherein water and eth...

Embodiment 3

[0051] The halogen-free flame-retardant low-voltage electric heating film synthesized in this example is based on a polymer material, and the conductive filler and the halogen-free flame retardant wrapped by the conductive filler are used synergistically, and finally the halogen-free flame-retardant low-voltage electric heating film prepared by mechanical processing membrane. Among them, low-density polyethylene is selected as the polymer matrix, aluminum hydroxide is selected as the halogen-free flame retardant, and titanium carbide is selected as the conductive filler for wrapping the halogen-free flame retardant. The halogen-free flame-retardant low-voltage electric heating film is prepared according to the following steps:

[0052] 1. At 45°C, add 9.5g of aluminum hydroxide to a three-necked flask equipped with a stirrer, a reflux condenser, and dry nitrogen, and disperse it into a mixed solvent of 300ml of water and ethanol (wherein water and ethanol The volume ratio is 1...

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PUM

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Abstract

The invention discloses a halogen-free flame-retardant low-voltage electrothermal film and a preparation method thereof. The halogen-free flame-retardant low-voltage electrothermal film is prepared with macromolecules as a matrix and conductive filler and a halogen-free flame retardant wrapped by the conductive filler as raw materials. The preparation method of the electrothermal film is simple; compared with a traditional electrothermal film, the electrothermal film has good electrothermal performance under low voltage below 36V, solves the potential safety hazard of fire hazard when the electrothermal film works at high temperature for a long time, reduces the production cost, and can be widely applied to the fields of physical therapy and health care, building insulation, household heating and the like.

Description

technical field [0001] The invention relates to a halogen-free flame-retardant low-voltage electric heating film and a preparation method thereof. On the one hand, it can improve the heating performance of the electric heating film under low pressure, and on the other hand, it can reduce the fire safety hazard of the electric heating film when it works for a long time. It belongs to electric heating and Halogen-free flame retardant in two fields. Background technique [0002] In recent years, the excellent performance of flexible electrothermal films in modern semiconductor industry, physical therapy and health care, wearable electronic devices and defogging and defrosting has attracted more and more attention. In the past, indium tin oxide (ITO) electrothermal films were widely used as thin film heaters due to their excellent optical transparency and high electrical conductivity. However, the price of ITO has been increasing in recent years. To make matters worse, the inh...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/08C08L23/06C08L23/12C08K13/06C08K9/10C08K3/04C08K3/32C08K3/22C08K5/3492C08J5/18
CPCC08J5/18C08J2323/06C08J2323/08C08J2323/12C08K3/04C08K5/34922C08K9/10C08K13/06C08K2003/2227C08K2003/321C08K2003/323
Inventor 汪碧波田文祥王鑫宋磊胡源
Owner UNIV OF SCI & TECH OF CHINA
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