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High-temperature-resistant flame-retardant insulating material and preparation method thereof

A flame-retardant insulating material and high-temperature-resistant technology, which is applied in the field of high-temperature-resistant flame-retardant insulating materials and their preparation, can solve problems such as poor low-temperature impact resistance and low thermal conductivity, and achieve improved insulation performance, improved flame-retardant performance, and increased weight loss. The effect of space charge accumulation

Inactive Publication Date: 2021-06-15
陈 瑞英
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, polypropylene material has strong brittleness and rigidity, poor low-temperature impact resistance, and low thermal conductivity.

Method used

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  • High-temperature-resistant flame-retardant insulating material and preparation method thereof
  • High-temperature-resistant flame-retardant insulating material and preparation method thereof
  • High-temperature-resistant flame-retardant insulating material and preparation method thereof

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preparation example Construction

[0028] In a further embodiment, the activated montmorillonine preparation includes: adding a quantitative montmorillonite in an HCl solution of 1-3 mol / L, wherein the solid-liquid mass ratio is 1: 1: The water bath was maintained at a temperature of 80-90 ° C; after standing, filtered filtrate, calcined in the muffle furnace, and the calcination temperature was 350-400 ° C, and naturally cooled naturally after completion was completed.

[0029] In a further embodiment, the material further comprises 5-9 parts of glass fiber powder, the glass fiber powder having a particle size of 90-100 mesh.

[0030] In a further embodiment, the stabilizer is 2,3-dimethyl 2,3-diphenylbutane, the promoter comprising maleic anhydride grafted polypropylene and / or polyethylene grafting horse Treat anhydride.

[0031] In a further embodiment, the expanded flame retardant comprises one or more of polyphosphate, melamine, and pentaerythritol.

[0032] In a further embodiment, the expanded flame reta...

Embodiment 1

[0036] Example 1 provides a high temperature resistant flame retardant insulating material, and the specific method is as follows:

[0037]First, the polypropylene resin and the polyethylene resin were dried under 85 ° C for 5 hours, 100 parts of the raw material polypropylene resin, 35 parts of polyethylene resin, 20 flame retardants, 8 parts of the flame retardant, 8 parts of the flame retardant, 8 parts of the flame retardant 10 copies, high-speed mixing, fed into the twin screw extruder, molten blending, extruded at a temperature of 185 ° C, cooled to obtain a high temperature resistant flame retardant material;

[0038] Among them, the flame retardant is a composite flame retardant, which is composed of a nanomaterial flame retardant and an expansion flame retardant having a molar ratio of 1: 0.4; the stabilizer is 2,3-dimethyl 2, 3. - Diphenylbutane, the accelerator is a maleic anhydride grafted polypropylene; the expansion flame retardant is composed of a molar ratio of 1: ...

Embodiment 2

[0048] Example 2 provides a high temperature resistant flame retardant insulating material, and the specific method is as follows:

[0049] First, the polypropylene resin and the polyethylene resin were dried under 85 ° C for 5 hours, 100 parts of the raw material polypropylene resin, 35 parts of polyethylene resin, 20 flame retardants, 8 parts of the flame retardant, 8 parts of the flame retardant, 8 parts of the flame retardant 10 copies, high-speed mixing, fed into the twin screw extruder, molten blending, extruded at a temperature of 185 ° C, cooled to obtain a high temperature resistant flame retardant material;

[0050] Among them, the flame retardant is a composite flame retardant, which is composed of a nanomaterial flame retardant and an expansion flame retardant having a molar ratio of 1: 0.4; the stabilizer is 2,3-dimethyl 2, 3. - Diphenylbutane, the accelerator is a maleic anhydride grafted polypropylene; the expansion flame retardant is composed of a molar ratio of 1:...

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Abstract

The invention provides a high-temperature-resistant flame-retardant insulating material. The high-temperature-resistant flame-retardant insulating material comprises, by weight, 80-120 parts of polypropylene resin, 30-40 parts of polyethylene resin, 15-25 parts of a flame retardant, 5-9 parts of glass fiber powder, 5-10 parts of a stabilizer and 8-12 parts of an accelerant, wherein the flame retardant is a composite flame retardant, and specifically comprises a nano material flame retardant and an intumescent flame retardant. A preparation method of the nano material flame retardant comprises the following steps: mixing a titanium dioxide nano material with activated montmorillonite, adding hexadecyl trimethyl ammonium bromide, dispersing in water, stirring for 30-50 minutes, carrying out hydrothermal reaction at the temperature of 500-600 DEG C for 12-24 hours, respectively washing with distilled water and absolute ethyl alcohol after the reaction is completed, and drying to obtain the nano material flame retardant. According to the high-temperature-resistant flame-retardant insulating material provided by the invention, the synergistic effect of a composite flame retardant system of the nano material flame retardant and an intumescent flame retardant is utilized, so that the flame-retardant efficiency of a polymer is improved, and the flame-retardant property is improved.

Description

Technical field [0001] In the field of material synthesis, the present invention relates to a high temperature resistant flame retardant insulating material and a preparation method thereof. Background technique [0002] The demand for environmental protection and high-efficiency flame retardant materials in the field of flame retardant, and polypropylene (PP) is secondary resin, which is secondary, ranging from polyvinyl chloride and polyethylene. Applications in the fields of electronics, buildings, transportation, packaging and other areas. The expansion flame retardant system has the advantages of environmental protection, low smoke, non-toxic, and efficient, has become the main development direction of halogen-free green flame retardant. Some layered nanome silicates, metal oxides, nano-carbon materials and expanded flame retardants are compounded in improving polymer flame retardation efficiency, improving flame retardant performance exhibits a good synergistic effect. [0...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L23/06C08L51/06C08K13/06C08K9/04C08K3/22C08K3/34C08K9/06C08K9/02C08K7/14C08K3/32C08K5/053
CPCC08K2003/2241C08K2003/323C08K2201/011C08L23/12C08L2201/02C08L2201/08C08L23/06C08L51/06C08K13/06C08K9/04C08K3/22C08K3/346C08K9/06C08K9/02C08K7/14C08K3/32C08K5/053
Inventor 不公告发明人
Owner 陈 瑞英
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