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Flame-proof polyamide composition with improved electricity insulating property

A technology of flame retardant polyamide and composition, applied in the field of flame retardant polyamide composition and polyamide modified material, to achieve excellent electrical insulation performance and flame retardant performance, meet performance requirements, and improve the effect of electrical insulation performance

Inactive Publication Date: 2007-07-04
SHANGHAI SUNNY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, with the implementation of EU ROHS and WEEE directives, traditional brominated flame retardant systems can no longer meet this requirement

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] specific implementation

[0026] Below in conjunction with embodiment, the present invention is described in further detail:

[0027] Examples 1 and 2: nylon 66 was used as the matrix resin, red phosphorus masterbatch was used as the flame retardant, PP-g-MAH was used as the compatibilizer, and the alkaline earth metal oxide was calcium oxide.

[0028] raw material name

Proportion 1

Matching 2

Nylon 66

45

60

Red Phosphorus Masterbatch

18

15

PP-g-MAH

5

4

E-glass fiber

30

20

Antioxidant is 1010 / 168 (1:1)

1

0.5

Calcium Oxide

1

0.5

[0029] Put the above components except glass fiber into a high-speed mixer in proportion to mix for 4 minutes, then add glass fiber and extrude and granulate with a screw extruder. The processing temperature is 270 ° C, and the screw speed is 450 rpm.

[0030] The properties of the flame retardant polyamid...

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Abstract

The invention relates to a flame retardant combiantaion polyamide with modified electrical insulating property. It comprises a mixture, and the detail components and the proportion by weight of them are as follows: nylon66 40- 75%, red phosphorus agglomerate 10- 20%, compatibilizer 1- 10%, glass fiber 10- 35%, anti-oxidation agent 0- 1% and metallic oxidant 0- 1%. The grade of flame retardance of said polyamide can reach to VO grade of UL94 standard, and the electrical insulating property can reach to 400 V evaluated with relative leakage current index.The product is also characterized by good rigidity, high thermal resistance and stable size. It is suitable to be used to inject and shape various low voltage electrical equipment and domestic appliance with requirement for flame retardance and insulating property.

Description

technical field [0001] The invention relates to a flame retardant polyamide composition with improved electrical insulation properties, in particular to an engineering material product suitable for injection molding with high electrical insulation performance requirements and flame retardant enhancement requirements, suitable for low-voltage vacuum contactors, circuit breakers The invention relates to polyamide modified materials for appliances, low-voltage switches, thin-walled electronic and electrical components, etc., and belongs to the technical field of modified polyamides. technical background [0002] Nylon 66 is a homogeneous thermoplastic polymer with 6 symmetrical methylene groups in its molecular structure. It has the advantages of high strength, wear resistance, solvent resistance, good self-lubrication and wide operating temperature range. It is the most widely used. One of the engineering plastics, widely used in various electronic and electrical equipment and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/00C08K7/14H01B3/30C08K3/32C08K3/22B29B9/12B29C47/36
Inventor 陈晓东王永和杨涛吴小龙孟成铭
Owner SHANGHAI SUNNY
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