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High-temperature-resistance flame-retardant glass fiber reinforced PA46/PA66 composite material and preparation method thereof

A flame retardant glass fiber, PA66 technology, applied in the field of polymer composite material preparation, can solve the problems of limited large-scale application, only flame retardant performance, high price, etc., and achieve the effects of convenient production, simple process and broad market prospects.

Inactive Publication Date: 2014-09-03
NINGBO EAGLE NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the flame retardant performance of polyamide 46 material itself is only V-2 level and expensive, which limits its large-scale application in the field of electronic appliances

Method used

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  • High-temperature-resistance flame-retardant glass fiber reinforced PA46/PA66 composite material and preparation method thereof
  • High-temperature-resistance flame-retardant glass fiber reinforced PA46/PA66 composite material and preparation method thereof
  • High-temperature-resistance flame-retardant glass fiber reinforced PA46/PA66 composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Add 5kg of dried nylon 66 resin (relative viscosity 2.5, moisture content 1‰), 44.4kg of PA46 resin, 0.2kg of antioxidant 1098, 0.2kg of antioxidant 168, 2kg of POE-g-MAH, and 0.5kg of oxidized polyethylene wax Stir evenly in the high-speed mixer on the main feeding device, add 12kg of brominated polystyrene, 8kg of organic phosphinate, 6kg of antimony trioxide, and 1.5kg of zinc oxide into the high-speed mixer on the 1# side feeding device Stir well in the middle, add the well-stirred mixture into the main feeder and 1# side feeder of the twin-screw extruder, and add 25kg short glass fibers into the 2# side feeder of the twin-screw extruder , granulated by a twin-screw extruder, the speed of the host is 600-800r / min, the vacuum pressure is controlled at 0.06-0.08Mpa, the speed of the host is 600-800r / min, and the vacuum pressure is controlled at 0.06-0.08MPa.

Embodiment 2

[0028] First dry 8kg of nylon 66 resin (relative viscosity 2.5, moisture content 1‰)), 44.4kg of PA46 resin, 0.2kg of antioxidant 1010, 0.2kg of antioxidant 168, 2kg of EPDM-g-MAH, 0.5kg of ethylene dihard Add fatty acid amide to the high-speed mixer on the main feeding device and stir evenly, add 12kg brominated polystyrene, 8kg tricresyl phosphate, 3kg antimony trioxide, and 1.5kg zinc oxide to the 1# side feeding device Stir well in a high-speed mixer, add the well-stirred mixture to the main feeder and 1# side feeder of the twin-screw extruder, and add 25kg of short glass fibers to the 2# side feeder of the twin-screw extruder In the device, it is granulated by a twin-screw extruder, the speed of the main machine is 600-800r / min, and the vacuum pressure is controlled at 0.06-0.08MPa. Example 3:

Embodiment 3

[0029] First, 10kg of dried nylon 66 resin (relative viscosity 2.5, moisture content 1‰)), 42.4kg PA46 resin, 0.2kg antioxidant 1098, 0.2kg antioxidant 168, 2kgSEBSM-g-MAH, 0.5kg montan wax were added to In the high-speed mixer on the main feeding device, add 12kg of decabromodiphenylethane, 8kg of organic phosphinate, 3kg of antimony trioxide, and 1.5kg of manganese oxide into the high-speed mixer on the 1# side feeding device, Stir evenly and add to the main feeder and 1# side feeder of the twin-screw extruder, add 25kg short glass fibers to the 2# side feeder of the twin-screw extruder, and extrude through the twin-screw extruder Machine granulation, the host speed is 600-800r / min, and the vacuum pressure is controlled at 0.06-0.08MPa.

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Abstract

The invention relates to a high-temperature-resistance flame-retardant glass fiber reinforced PA46 / PA66 composite material. The composite material is prepared from the following raw materials in percentage by mass: 5-15 percent of nylon 66, 19.4-66.8 percent of nylon 46, 8-20 percent of a compound flame retardant, 3-8 percent of a synergist, 15-30 percent of glass fiber, 2-6 percent of a flexibilizer, 0.1-0.6 percent of an antioxidant and 0.1-0.6 percent of a lubricant.According to the preparation method, the mechanical performance and the heat tolerance of the PA46 / PA66 composite material can be greatly improved by means of the compounding effect of each functional adjuvant, the glowing filament ignition temperature can be increased, wherein a sample filament with thickness of 3.0mm can not be ignited when the temperature is over 800 DEG C, so that the product can be used for a long time in a high-temperature high-heat environment. Currently, the products can be successfully applied to production of binding posts, connectors, sockets, switches, electric appliance casings and the like.

Description

【Technical field】 [0001] The invention relates to the technical field of polymer composite material preparation, and more specifically relates to a high temperature resistant flame retardant glass fiber reinforced PA46 / PA66 composite material and a preparation method thereof. 【Background technique】 [0002] Polyamide 46 has the characteristics of excellent electrical properties, heat resistance and high toughness, and has high surface and volume resistance and dielectric strength. It can still maintain high performance level at high temperature and is suitable for electronic and electrical materials. However, the flame retardancy of polyamide 46 material itself is only V-2 level and expensive, which limits its large-scale application in the field of electronic appliances. PA66 resin has the advantages of high mechanical strength, good toughness, fatigue resistance, self-lubrication, small friction coefficient, wear resistance, heat resistance, easy modification and molding,...

Claims

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Application Information

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IPC IPC(8): C08L77/06C08L25/06C08K13/04C08K7/14C08K5/5313C08K3/22C08K5/523C08K3/38C08K5/03C08J5/04B29C47/92B29C48/92
CPCB29B7/7461B29B9/12B29C2947/92619C08L25/18B29C2947/92638B29B7/46C08L77/06B29B9/06B29B9/14B29C47/92B29B7/72C09K21/14C08K2201/003C08K2201/004C08L2201/02C08L2201/08C08L2205/025C08L2205/035C08L51/06C08L23/30C08L25/06C08K13/04C08K7/14C08K5/5313C08K3/2279C08K2003/2296C08K5/20C08K5/523C08L51/006C08K5/03C08K2003/2262C08K5/098C08K3/38B29C48/40B29C48/92B29C2948/92514B29C2948/9259B29C2948/92619B29C2948/92638B29C2948/92704C08K3/016C08K5/0066C08L23/08
Inventor 陆建华蒋东升
Owner NINGBO EAGLE NEW MATERIAL
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