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A heat-conducting flame-retardant polyester composite material and a heat dissipation device for LED lamps

A technology of flame-retardant polyester and composite materials, which is applied in the field of thermally conductive flame-retardant polyester composite materials and heat-dissipating components for LED lamps, can solve the problem that flame-retardant butylene terephthalate does not have thermal conductivity, and plastics do not have thermal conductivity. Improvement, poor thermal conductivity and other problems, to achieve the effect of low cost of material formula, reduced dosage, and good processing performance

Active Publication Date: 2021-12-03
BENSONG ENG PLASTICS HANGZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the addition of flame retardant phosphate and melamine in parts by weight up to 30 parts, the resulting product has good flame retardancy, and its flame retardancy reaches UL94V0 level; however, due to the added flame retardant, acrylonitrile-styrene copolymer The thermal conductivity of the material is poor, so the thermal conductivity of the plastic is not improved, and the resulting flame-retardant butylene terephthalate does not have thermal conductivity

Method used

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  • A heat-conducting flame-retardant polyester composite material and a heat dissipation device for LED lamps
  • A heat-conducting flame-retardant polyester composite material and a heat dissipation device for LED lamps
  • A heat-conducting flame-retardant polyester composite material and a heat dissipation device for LED lamps

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Experimental program
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Effect test

Embodiment 1～12

[0053] Embodiment 1~12 and comparative example 1~7

[0054] For each raw material in each embodiment and comparative example, refer to the proportions in Table 2 and Table 3 below. Unless otherwise specified, each raw material is calculated by weight percentage.

[0055] The preparation process of composite materials, specifically:

[0056] The polyester resin is pre-dried in an oven at 110-120°C for 2-3 hours to ensure that its moisture content is ≤0.05;

[0057] Produced by melt blending extrusion process, the raw material components except glass fiber are mixed in a high-speed mixing pot at room temperature and high speed for 10-15 minutes, and the obtained mixture is fed into the twin-screw extruder through the main feeding port, and the glass fiber is fed from the side The feed is fed into a twin-screw extruder, melted and blended, cooled, air-dried and granulated to obtain the product. The polyester resin modified extrusion processing temperature parameters are shown i...

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Abstract

The invention discloses a heat-conducting and flame-retardant polyester composite material and a heat dissipation device for an LED lamp. The heat-conducting and flame-retardant polyester composite material comprises 30-60 parts of polyester resin and 10-25 parts of reinforcing filler in parts by weight; 2-6 parts of brominated flame retardant; 2-8 parts of nitrogen-based flame retardant; 15-35 parts of calcium carbonate; the nitrogen-based flame retardant is a derivative of melamine. The heat-conducting and flame-retardant polyester composite material disclosed by the present invention has good heat-conducting, insulating, flame-retardant and mechanical properties, and has low manufacturing cost, and can meet the use requirements of heat-dissipating devices for LED lamps.

Description

technical field [0001] The invention belongs to the technical field of flame-retardant and heat-conducting polymer materials, and in particular relates to a heat-conducting, flame-retardant polyester composite material and a heat dissipation device for LED lamps. Background technique [0002] Thermally conductive plastic replaces metal aluminum as the heat dissipation part of LED lamps, which not only increases the flexibility of LED lamp design and reduces the total weight of lamps, but also has obvious cost advantages. At the same time, it can effectively improve the lighting efficiency of LED lamps and save power consumption. Thermally conductive plastics Based heat sinks are an emerging technology trend in LED lighting today. [0003] According to the use environment of LED lamp cooling parts, based on safety considerations, materials are required to have high thermal conductivity, heat resistance and flame retardancy, such as indoor lighting LED bulbs, the thermal condu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L67/02C08L63/00C08L25/06C08K13/04C08K7/14C08K3/26C08K5/3492C08K5/03
CPCC08L67/02C08L2201/02C08L2203/202C08L2205/025C08L2205/03C08L63/00C08L25/06C08K13/04C08K7/14C08K3/26C08K5/34928C08K5/34924C08K5/03
Inventor 巩玉钊张光辉周永松徐淑芬
Owner BENSONG ENG PLASTICS HANGZHOU
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