Flame-retardant PET heat-conducting material for heater and preparation method thereof

A heat-conducting material and heater technology, applied in the field of engineering plastics, can solve problems such as the lack of heat-conducting fillers, and achieve the effects of increasing high-temperature oxidation resistance, improving strength, and improving thermal stability

Inactive Publication Date: 2016-11-23
ANHUI NINGGUO TIANCHENG ELECTRICAL APPLIANCES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Chinese patent CN 103254577A discloses a "flame-retardant polyethylene terephthalate molding compound". The molding compound has excellent flame-retardant and mechanical properties, but it is not a A good heat-conducting material, so the preparation of PET heat-conducting materials with excellent flame-retardant properties has good development significance

Method used

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  • Flame-retardant PET heat-conducting material for heater and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A flame-retardant PET heat-conducting material for a heater, which is composed of the following raw materials in parts by weight: 70 parts of PET, 18 parts of PBT, 0.5 parts of talc powder, 16 parts of zinc oxide, 5 parts of magnesium oxide, 9 parts of nano-boron nitride, and 9 parts of nano-boron nitride. 3 parts of silicon oxide, 3 parts of hollow glass microspheres, 4 parts of titanate coupling agent, 12 parts of calcium stearate, 1.5 parts of dioctyl phthalate, 4 parts of colloidal antimony pentoxide, silicone resin barrier 6 parts of fuel, 2 parts of polytetrafluoroethylene, 5 parts of stabilizer.

[0020] Preferably, the stabilizer is a mixture of organotin heat stabilizer, ultraviolet absorber UV-P and antioxidant.

[0021] A preparation method for a flame-retardant PET heat-conducting material for a heater, specifically comprising the following steps:

[0022] (1) Weighing and drying: Weigh each raw material according to weight ratio, dry PET at 150°C for 3 hou...

Embodiment 2

[0027] A flame-retardant PET heat-conducting material for a heater, which is composed of the following raw materials in parts by weight: 65 parts of PET, 20 parts of PBT, 0.4 parts of talc powder, 18 parts of zinc oxide, 3 parts of magnesium oxide, 10 parts of nano-boron nitride, and 10 parts of nano-boron nitride. 2 parts of silicon oxide, 4 parts of hollow glass microspheres, 3 parts of titanate coupling agent, 2.5 parts of calcium stearate, 1 part of dioctyl phthalate, 5 parts of colloidal antimony pentoxide, polysiloxane 4 parts of alkane flame retardant, 3 parts of polytetrafluoroethylene, 3 parts of stabilizer.

[0028] Preferably, the stabilizer is a mixture of organotin heat stabilizer, ultraviolet absorber UV-9 and antioxidant.

[0029] A preparation method for a flame-retardant PET heat-conducting material for a heater, specifically comprising the following steps:

[0030] (1) Weighing and drying: Weigh each raw material according to weight ratio, dry PET at 130°C f...

Embodiment 3

[0035] A flame-retardant PET heat-conducting material for a heater, which consists of the following raw materials in parts by weight: 75 parts of PET, 15 parts of PBT, 0.6 parts of talc powder, 15 parts of zinc oxide, 6 parts of magnesium oxide, 8 parts of nano-boron nitride, and 8 parts of nano-boron nitride. 4 parts of silicon oxide, 2 parts of hollow glass microspheres, 6 parts of titanate coupling agent, 1.5 parts of calcium stearate, 2 parts of dioctyl phthalate, 3 parts of colloidal antimony pentoxide, polysiloxane 7 parts of alkane flame retardant, 2 parts of polytetrafluoroethylene, 6 parts of stabilizer.

[0036] Preferably, the stabilizer is a mixture of organotin heat stabilizer, ultraviolet absorber UV-9 and antioxidant.

[0037] The preparation method of flame-retardant PET for heater specifically comprises the following steps:

[0038] (1) Weighing and drying: Weigh each raw material according to weight ratio, dry PET at 140°C for 3 hours, and dry PBT at 115°C f...

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Abstract

The invention relates to the technical field of engineering plastics, in particular to a flame-retardant PET heat-conducting material for a heater and a preparation method thereof. The flame-retardant PET heat-conducting material for a heater consists of the following raw materials in parts by weight: 65-75 parts of PET, 15-75 parts of PBT 20 parts, 0.4-0.6 parts of talcum powder, 15-18 parts of zinc oxide, 3-6 parts of magnesium oxide, 8-10 parts of nano-boron nitride, 2-4 parts of nano-silica, 2-4 parts of hollow glass microspheres , 3‑6 parts of titanate coupling agent, 1.5‑2.5 parts of calcium stearate, 1‑2 parts of dioctyl phthalate, 3‑5 parts of colloidal antimony pentoxide, 4‑5 parts of silicone flame retardant 7 parts, 2-3 parts of polytetrafluoroethylene, 3-6 parts of stabilizer, the main steps of the preparation method of the flame-retardant PET heat-conducting material for the heater include weighing and drying, modification treatment, premixing, extrusion granulation, The flame-retardant PET heat-conducting material for heaters in the present invention has excellent thermal conductivity, good insulation, and good flame retardancy and mechanical properties, making its use in heaters safer and more reliable.

Description

technical field [0001] The invention relates to the technical field of engineering plastics, in particular to a flame-retardant PET heat-conducting material for a heater and a preparation method thereof. Background technique [0002] A heater is a device that can generate or produce high temperatures. 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 v...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L27/18C08L83/04C08L83/14C08K13/06C08K9/10C08K9/04C08K3/22C08K3/38C08K3/36C08K7/28C08K5/098C08K5/12C09K5/14
CPCC08L67/02C08K2201/011C08L2201/02C08L2201/08C08L2205/025C08L2205/035C09K5/14
Inventor 汪洋陈启志李国春肖美玲
Owner ANHUI NINGGUO TIANCHENG ELECTRICAL APPLIANCES
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