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Magnetic poly(vinylidene fluoride-hexafluoropropylene) organic-inorganic insulating composite material and preparation method thereof

A technology of hexafluoropropylene and vinylidene fluoride, used in organic insulators, insulators, plastic/resin/wax insulators, etc., can solve the problems of poor insulation effect, low dielectric constant, poor damping characteristics, etc., and achieve excellent chemical corrosion resistance properties, high dielectric constant, and the effect of improving crystallinity

Inactive Publication Date: 2019-11-12
厦门珉瑶贸易有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies in the prior art, the present invention provides a magnetic poly(vinylidene fluoride-hexafluoropropylene) organic-inorganic insulating composite material, which solves the problem of low dielectric constant and damping characteristics of existing fluoroplastic insulation control cables. Poor, leading to poor insulation effect and other problems, and at the same time solve the problem that poly(vinylidene fluoride-hexafluoropropylene) is affected by crystallinity, crystal type and regularity of molecular chain, so that its performance is greatly reduced and other problems

Method used

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preparation example Construction

[0024] In order to achieve the above object, the present invention provides the following technical solution: in order to achieve the above object, the present invention provides the following technical solution: a magnetic poly(vinylidene fluoride-hexafluoropropylene) organic-inorganic insulating composite material and a preparation method thereof, comprising The following raw materials in parts by weight ratio, 60-85 parts of poly(vinylidene fluoride-hexafluoropropylene), 2-5 parts of multi-walled carbon nanotubes, 3-8 parts of glacial acetic acid, 5-10 parts of dilute hydrochloric acid, passed through ice Acetic acid and dilute hydrochloric acid acidified multi-walled nanotubes, and successfully prepared COOH-MWCNTs-HCl functional nanofillers. The interfacial interaction between propylene) promotes the formation of metastable β-crystals of poly(vinylidene fluoride-hexafluoropropylene), so that COOH-MWCNTs-HCl functional nanofillers are uniformly dispersed and attached to the...

Embodiment 1

[0033] (1) Prepare acidified multi-walled carbon nanotubes: take 3 parts of glacial acetic acid and 5 parts of dilute hydrochloric acid successively and put them into N 2 In the three-necked flask, add 2 parts of multi-walled carbon nanotubes, and pass N 2 Place the three-necked bottle in an ultrasonic processor and perform ultrasonic treatment for 1-1.5 hours. After the ultrasonic treatment, heat the three-necked bottle in a water bath to 75-80°C and react for 12-15 hours. After the reaction is complete, perform suction filtration. The material is washed with 2000-3000mL distilled water to remove residual acetic acid and hydrochloric acid until the material is neutral, and the material is placed in an oven and heated to 85-90°C to dry the water to obtain acidified multi-walled carbon nanotubes in black powdery solid , COOH-MWCNTs-HCl nanoparticles 1;

[0034] (2) Weigh 5 parts of magnetic nano-nickel oxide, add it to a 500mL beaker, then add 200ml of distilled water, and the...

Embodiment 2

[0038] (1) Prepare acidified multi-walled carbon nanotubes: take 4 parts of glacial acetic acid and 6 parts of dilute hydrochloric acid successively and put them into N 2 In the three-necked flask, add 3 parts of multi-walled carbon nanotubes, and pass N 2 Place the three-necked bottle in an ultrasonic processor and perform ultrasonic treatment for 1-1.5 hours. After the ultrasonic treatment, heat the three-necked bottle in a water bath to 75-80°C and react for 12-15 hours. After the reaction is complete, perform suction filtration. The material is washed with 2000-3000mL distilled water to remove residual acetic acid and hydrochloric acid until the material is neutral, and the material is placed in an oven and heated to 85-90°C to dry the water to obtain acidified multi-walled carbon nanotubes in black powdery solid , COOH-MWCNTs-HCl nanoparticles 2;

[0039] (2) Weigh 7 parts of magnetic nano-nickel oxide, add it to a 500mL beaker, then add 200ml of distilled water, and the...

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Abstract

The invention relates to the technical field of preparation of magnetic insulating composite materials, and discloses a magnetic poly(vinylidene fluoride-hexafluoropropylene) organic-inorganic insulating composite material and a preparation method thereof. The composite material comprises the following raw materials: poly(vinylidene fluoride-hexafluoropropylene), multi-walled carbon nanotubes, glacial acetic acid, diluted hydrochloric acid, magnetic nano nickel oxide and a titanate coupling agent. The poly(vinylidene fluoride-hexafluoropropylene) monomer is vinylidene fluoride and hexafluoropropylene and has the structural formulas shown in the specification; the multi-walled carbon nanotubes are allotropes of carbon. By adding COOH-MWCNTs-HCl nano particles modified by magnetic NiO into poly(vinylidene fluoride-hexafluoropropylene), the composite material enhances the energy dissipation capacity, thereby enhancing the damping characteristic and dielectric constant, reducing the electric loss, enhancing the breakdown field strength and enhancing the insulativity, and can be better used for manufacturing the insulated control cable sheath.

Description

technical field [0001] The invention relates to the technical field of magnetic insulating composite material preparation, in particular to a magnetic poly(vinylidene fluoride-hexafluoropropylene) organic-inorganic insulating composite material. Background technique [0002] In recent years, with the multi-functionalization, light weight and miniaturization of electrical equipment and electronic equipment, people urgently need control cables with higher insulation to be used in these equipment and equipment, and have high heat resistance, halogen-free and low smoke resistance. Combustibility, oil resistance and softness, etc., and in some places with high and low heat, the traditional PVC and polyvinylidene fluoride insulated control cable sheath can no longer meet the above characteristics. At present, someone has developed a polyvinyl chloride Fluoroplastic insulated control cable sheaths and silicone rubber insulated glass wire braided control cables represented by tetraf...

Claims

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Application Information

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IPC IPC(8): C08L27/16C08K13/06C08K9/12C08K9/02C08K9/04C08K7/24C08K3/22H01B3/44
CPCC08K3/22C08K9/02C08K9/04C08K9/12C08K13/06C08K2003/2293C08K2201/01C08K2201/011C08L2203/202C08L2205/242C08K3/041H01B3/445C08L27/16
Inventor 马海龙郭臣唐阔海
Owner 厦门珉瑶贸易有限公司
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