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Modified PET (Polyethylene Terephthalate) base material for heater and preparation method thereof

A heater and modification technology, applied in the field of engineering plastics, can solve the problems of poor insulation of heat dissipation materials, and achieve the effects of improving high temperature resistance and anti-aging ability, good insulation and improving thermal conductivity.

Inactive Publication Date: 2017-01-04
ANHUI NINGGUO TIANCHENG ELECTRICAL APPLIANCES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chinese patent CN105385132A discloses "a PC-PET-based LED heat dissipation material containing modified boron nitride fiber-carbon nanotubes and its preparation method". Although the heat dissipation material has high thermal conductivity, carbon nanotubes have good electrical conductivity Performance, will lead to poor insulation of the prepared heat dissipation material

Method used

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  • Modified PET (Polyethylene Terephthalate) base material for heater and preparation method thereof

Examples

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Effect test

Embodiment 1

[0018] A modified PET base material for a heater, which is composed of the following raw materials in parts by weight: 65 parts of PET, 14 parts of modified nano-rectorite, 10 parts of polytetrafluoroethylene micropowder, 5 parts of glass fiber, 4 parts of aluminum nitride, 17 parts of zinc, 4 parts of nano-silicon nitride, 3 parts of aluminum oxide, 0.8 parts of talcum powder, 3 parts of dihydroxypolydimethylsiloxane, 3 parts of calcium-zinc composite stabilizer, 1.8 parts of barium stearate, ultraviolet absorption 0.4 parts of UV-P agent, 0.8 parts of hindered amine anti-aging agent, and 2 parts of toughening agent.

[0019] The preparation method of the modified nano-rectorite is as follows: adding a titanate coupling agent into the ethanol solution, adjusting the pH until the coupling agent is completely dissolved, then adding the modified nano-rectorite into it, stirring thoroughly and then Ultrasonic dispersion is carried out, and the spray drying method is used to dry i...

Embodiment 2

[0025] A modified PET base material for a heater, which is composed of the following raw materials in parts by weight: 70 parts of PET, 12 parts of modified nano-rectorite, 12 parts of polytetrafluoroethylene micropowder, 4 parts of glass fiber, 6 parts of aluminum nitride, oxide 15 parts of zinc, 5 parts of nano-silicon nitride, 2 parts of aluminum oxide, 01 parts of talc powder, 2 parts of dihydroxypolydimethylsiloxane, 4 parts of calcium zinc composite stabilizer, 1.5 parts of barium stearate, ultraviolet absorption 0.4 parts of UV-9 agent, 0.8 parts of benzophenone anti-aging agent, and 3 parts of toughening agent.

[0026] The preparation method of the modified nano-rectorite is as follows: adding a silane coupling agent to the ethanol solution, adjusting the pH until the coupling agent is completely dissolved, then adding the modified nano-rectorite to it, and then performing ultrasonication after fully stirring. Disperse and dry it by spray drying, so that the surface o...

Embodiment 3

[0033] A modified PET base material for a heater, which is composed of the following raw materials in parts by weight: 60 parts of PET, 16 parts of modified nano-rectorite, 8 parts of polytetrafluoroethylene micropowder, 6 parts of glass fiber, 3 parts of aluminum nitride, oxide 18 parts of zinc, 3 parts of nano-silicon nitride, 4 parts of aluminum oxide, 0.5 parts of talcum powder, 4 parts of dihydroxypolydimethylsiloxane, 2 parts of calcium-zinc composite stabilizer, 2 parts of barium stearate, ultraviolet absorption UV-P 0.3 part, hindered amine anti-aging agent 0.5 part, benzophenone anti-aging agent 0.5 part, toughening agent 1 part.

[0034] The preparation method of the modified nano-rectorite is as follows: adding an aluminate coupling agent into an ethanol solution, adjusting the pH until the coupling agent is completely dissolved, then adding the modified nano-rectorite into it, stirring thoroughly and then Ultrasonic dispersion is carried out, and the spray drying m...

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Abstract

The invention relates to the technical field of engineering plastic and in particular relates to a modified PET (Polyethylene Terephthalate) base material for a heater and a preparation method thereof. The modified PET base material for the heater is prepared from the following raw materials in parts by weight: 60 to 70 parts of PET, 12 to 16 parts of modified nano rectorite, 8 to 12 parts of polytetrafluoroethylene micro-powder, 4 to 6 parts of glass fibers, 3 to 6 parts of aluminum nitride, 15 to 18 parts of zinc oxide, 3 to 5 parts of nano silicon nitride, 2 to 4 parts of aluminum oxide, 0.5 to 1 part of talcum powder, 2 to 4 parts of dihydroxy polydimethyl siloxane, 2 to 4 parts of a calcium-zinc compound stabilizer, 1.5 to 2 parts of barium stearate, 0.3 to 0.5 part of an ultraviolet absorber, 0.5 to 1 part of an anti-ageing agent and 1 to 3 parts of a toughening agent; the preparation method of the modified PET base material for the heater comprises the main steps of premixing, extruding and granulating, and drying and molding; the modified PET base material for the heater, provided by the invention, not only has excellent thermal conductivity and excellent insulativity, but also has relatively good mechanical properties.

Description

technical field [0001] The invention relates to the technical field of engineering plastics, in particular to a modified PET base material for a heater and a preparation method thereof. Background technique [0002] A heater is a device that can generate or produce high temperature. Generally speaking, the maximum temperature is about 70-300°C. It includes three parts: heat generation, heat dissipation and temperature control. Heaters widely exist in electronic and electrical equipment, and their ability to dissipate heat in time becomes an important limiting factor affecting the service life. Therefore, the development of insulating materials with high thermal conductivity has become an urgent problem to be solved. Traditional heat-conducting materials generally use aluminum or ceramic materials, but these materials are difficult to process, expensive, and dense. Plastic is light in weight, easy to process and shape, and easy to design and process into various shapes. At p...

Claims

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Application Information

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IPC IPC(8): C08L67/02C08L27/18C08L83/06C08K13/06C08K9/04C08K9/06C08K3/34C08K7/14C08K3/28C08K3/22C08K5/098
CPCC08L67/02C08K2201/014C08L2201/08C08L2203/20C08L2205/03
Inventor 汪洋陈启志江盈肖美玲
Owner ANHUI NINGGUO TIANCHENG ELECTRICAL APPLIANCES
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