Heat-conducting nylon composite material, preparation method and application thereof

A nylon composite material and thermally conductive filler technology are applied in the field of thermally conductive nylon composite materials and their preparation, which can solve the problems of restricting the replacement of LED products, high PPS price, and high processing temperature, and achieve increased mechanical properties, processability, and good mechanics. performance, the effect of improving thermal conductivity

Inactive Publication Date: 2013-04-24
BENSONG ENG PLASTICS HANGZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, my country's engineering plastics companies are also actively working to develop thermally conductive engineering plastics. It is understood that my country's development is mainly oriented by similar foreign products, and the focus is on PPS thermally conductive plastics, and PPS has high prices during use. characteristics, and the processing temperature is high, as a long-term engineering material, there is a disadvantage of high cost
At present, similar thermal conductive materials in foreign countries are not only extremely expensive, but also only for certain customers, which seriously limits the timely replacement of LED products in my country.

Method used

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  • Heat-conducting nylon composite material, preparation method and application thereof
  • Heat-conducting nylon composite material, preparation method and application thereof
  • Heat-conducting nylon composite material, preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0048] Put 900g of alumina with a D50 of 0.5um into a blast oven, set the temperature at 100°C, dry for 5 hours, take it out and put it in an aluminum-plastic bag, vacuumize it and pack it for later use.

[0049] Put 1800g of nylon 66 (EPR27) into a dehumidification drying oven, set the temperature at 120°C, and after drying for 4 hours, take it out and put it into a high-speed mixer, add 15g of coupling agent KH550 (commercially available), 9g of lubricant calcium stearate ( Commercially available), low speed 500 r / min, stirring for 1 min, adding alumina, high speed stirring 1500 r / min, discharging after 2 min, adding 300g flame retardant XDP (commercially available) at the main feeding port of the extruder It is added in weight loss metering at the side feeding port, extruded, pelletized and set aside. Temperature settings for each zone of the extruder: Zone 1: 260 °C, Zone 2: 260 °C, Zone 3: 260 °C, Zone 4: 260 °C, Zone 5: 250 °C, Zone 6: 220 °C, Zone 7: 220 °C, Zone 8 Zon...

Embodiment 2

[0051] Put 300 g and 1200 g of alumina with a D50 of 0.5um and 15um respectively into a blast oven, set the temperature at 100 °C, and after drying for 5 hours, take it out and put it in an aluminum-plastic packaging bag, and vacuumize and seal it for later use.

[0052] Put 1200 g of nylon 66 (EPR27) into a vacuum oven, set the temperature at 120 °C, and after drying for 4 h, take it out and put it into a high-speed mixer, add 15 g of titanate coupling agent NDZ-105 (commercially available), and lubricate Calcium stearate 9g (commercially available), low speed 500 r / min, stirring for 1 min, adding alumina filler, high speed stirring 1500 r / min, discharging after 2 min, adding at the main feeding port of the extruder, 300 g resistance The fuel OP (commercially available) is added in weight loss metering at the side feeding port, and then extruded, pelletized and ready for use. Temperature settings in each zone of the extruder: Zone 1: Zone 1: 260°C, Zone 2: 260°C, Zone 3: 260°...

Embodiment 3

[0054] Put 2191.6 g of aluminum nitride with a D50 of 5um into a blast oven, set the temperature at 100 °C, dry for 5 hours, take it out and put it in an aluminum-plastic packaging bag, and vacuumize it for later use.

[0055] Put 300g of nylon 66 and 308.4g of nylon 6 (M2400) into a blast oven, set the temperature at 100°C, dry for 4 hours, take them out and put them in a high-speed mixer, add 15g of aluminate coupling agent DL-411-A, 15g lubricant PETS, low speed 500 r / min, stirring for 0.5min, then change to high speed stirring 1500 r / min, discharge after 2min, add in the main feeding port of the extruder, filler aluminum nitride, 200g flame retardant MCA (Commercially available) Add in weight loss metering at the side feeding port, extrude, pelletize, and set aside. Temperature settings for each zone of the extruder: Zone 1: 260 °C, Zone 2: 260 °C, Zone 3: 260 °C, Zone 4: 260 °C, Zone 5: 250 °C, Zone 6: 220 °C, Zone 7: 220 °C, Zone 8 Zone: 220°C, Zone 9: 220°C, Machine he...

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Abstract

The invention provides a heat-conducting nylon composite material, a preparation method and application thereof. The formula comprises the components in parts by weight of 20.0-80.0 parts of PA66 and/or PA6, and 15.0-75.0 parts of thermal conductive filler, wherein the heat-conducting coefficient of the thermal conductive filler is 5W/m.k-900W/m.k. The preparation method comprises the steps of a) stirring and mixing the thermal conductive filler and carrying out surface modification; b) mixing and extruding the mixed material on an extruder, wherein the temperature is 220-265 DEG C; and c) obtaining the heat-conducting nylon composite material from the material by extruding, pelletizing and drying. The material is applied to the fields of a radiating material of a light-emitting diode (LED) lamp housing, or a low-voltage apparatus and an electronic radiating element.

Description

technical field [0001] The invention relates to the technical field of heat-conducting materials, in particular to a heat-conducting nylon composite material and its preparation method and application. Background technique [0002] Semiconductor Light Emitting Diode (LED) is a new type of light source, which has many advantages such as small size, low power consumption, long life, non-toxic and environmental protection, and the conversion of luminous power is close to more than 98%. 60%-80% above huge advantages, and flexible and convenient installation, durable and reliable, service life can reach 30,000 to 50,000 hours, 30 times that of ordinary light bulbs, equivalent to three years of uninterrupted lighting. Its disadvantages are high luminous efficiency and large heat release, and the PN semiconductor structure, which is the core component of the LED, will greatly reduce the efficiency of converting electrical energy into light energy during the process of heat accumula...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/06C08L77/02C08K13/06C08K9/06C08K9/04C08K3/38C08K3/28C08K3/34C08K3/08C08K7/00C08K3/04C08K7/06C08K3/22B29C47/92B29C48/92
CPCB29C48/04B29C48/92B29C2948/92704B29C2948/92895
Inventor 王延军陈光辉
Owner BENSONG ENG PLASTICS HANGZHOU
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