High-heat-resistance and high-CTI (Comparative Tracking Index) inflaming retarding polyamide composite material and production process thereof

A technology of flame retardant polyamide and composite materials, applied in the field of polymer materials, can solve the problems of dependence, low CTI value, lack of heat resistance, etc., and achieve the effect of improving surface tension, good shear resistance, and reducing solubility

Inactive Publication Date: 2012-07-25
横店集团得邦工程塑料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] At present, domestic flame-retardant polyamides for the purpose of improving CTI values ​​are mainly produced by Chenguang Chemical Research Institute and other units, but their CTI values ​​are not high, and their heat resistance is relatively lacking. There is still a big gap between the comprehensive performance level and foreign products. Domestic high-end materials are all dependent on imports

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-6

[0046] See Table 1 for the weight percentage of each raw material in Examples 1-6, see Table 2 for the manufacturer of each raw material, see Table 3 for the physical property test results of each embodiment, and see Table 4 for the physical property test equipment and standards of each embodiment.

[0047] Mix PA66, PA9T resin and interface modifier (white oil, etc.) in a high mixer for 30 seconds, then add antioxidant, lubricant, composite flame retardant, flame retardant synergist, compatibilizer, inorganic filler The high-speed mixer is mixed at high speed for about 60 seconds, and then fed into the twin-screw extruder from the first feeder; the glass fiber is fed into the extruder from the second feeder.

[0048] The temperature distribution of the extruder is as follows: 280°C, 285°C, 280°C, 275°C, 270°C, 270°C, 275°C, 270°C, the die head temperature: 290°C, the material is cooled by water after extrusion, pelletized, and then Packed after inhalation into a high mixer an...

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PUM

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Abstract

The invention provides a high-heat-resistance and high-CTI (Comparative Tracking Index) inflaming retarding polyamide composite material, comprising the following components of a composite flame retardant, an inflaming retarding synergist, a compatilizer, an inorganic filler, an antioxidant, a lubricating agent and glass fibers. The high-heat-resistance and high-CTI inflaming retarding polyamide composite material disclosed by the invention can stably pass through a CTI value of 500 V, and has a higher heat-resistance temperature and better physical performances.

Description

Technical field [0001] The present invention is a high molecular material field, which is specifically a high -heat -resistant high CTI flame -retardant polyamide composite material and its production process. Background technique [0002] With the rapid development of the electronics and electrical industry and the increasing attention of electrical public safety, the strong investment in infrastructure construction has increased to the demand for high -power insulation and flame retainment engineering plastics, such as low -pressure vacuum contactors, circuit breakers, low -voltage switches, thin walls, thin wallsElectronic and electronics components, etc., need to be manufactured with engineering plastics with good comprehensive mechanical performance, flame retardant performance and electrical insulation performance.Among them, the amount of polyamide (PA) is the largest.Nylon has great potential in the electrical and electronics industry, and the demand for nylon in low -vol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/06C08L25/06C08K13/06C08K9/06C08K7/14C08K5/1515C08K3/22C08K3/38C08K3/02B29C47/92B29C48/92
CPCB29C48/40B29C48/92B29C2948/92704B29C2948/92895B29C2948/92904
Inventor 周立辉施向阳宋向前张旭东车仕君金侃
Owner 横店集团得邦工程塑料有限公司
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