Flame retardant reinforced nylon material with high glow wire ignition temperature and preparation method thereof

A technology of high glow wire and nylon, which is applied in the field of flame retardant reinforced nylon materials with high glow wire ignition temperature and its preparation, can solve the problems of low mechanical strength, low thermal deformation temperature, low notched impact strength, etc., and achieve good toughness , high strength, cost-effective effect

Active Publication Date: 2012-02-15
GUANGDONG WAYLAM ENG PLASTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, pure nylon resin also has disadvantages such as poor flame retardancy (only up to UL-94V2 level), low mechanical strength, low notched impact strength, and low heat distortion temperature, which limit its application in certain fields.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] First bake 40% by weight of PA6 resin at 120°C for 3 hours to control the moisture below 0.1%; then mix with 18% by weight of brominated polystyrene, 6% by weight of antimony trioxide and 5% by weight of zinc borate, 0.1% by weight of primary antioxidant tetrakis(β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate) pentaerythritol ester (1010) and 0.2% secondary antioxidant tris(2,4-di tert-butylphenyl) phosphite (168), other processing aids of 0.7% by weight are mixed by a high-speed mixer for 2 minutes and then enter the twin-screw extruder from the metering feeder to be plasticized and melted. 30% by weight of alkali-free glass fiber is added into the extruder, and then the product is obtained through extrusion, cooling, magnetization and packaging.

Embodiment 2

[0017] First bake 35% by weight of PA6 resin at 120°C for 3 hours to control the moisture below 0.1%; then mix with 15% by weight of brominated polystyrene, 5% by weight of antimony trioxide, 9% by weight of zinc borate, 0.1% by weight of primary antioxidant tetrakis(β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate) pentaerythritol ester (1010) and 0.2% secondary antioxidant tris(2,4-di tert-butylphenyl) phosphite (168), 0.7% by weight of other additives are mixed by a high-speed mixer for 2 minutes, and then enter the twin-screw extruder from the metering feeder to be plasticized and melted. 35% by weight of alkali-free glass fiber is added into the machine, and then the product is obtained through extrusion, cooling, magnetic passing and packaging.

[0018] The performance of the flame retardant reinforced PBT material obtained in embodiment 1 and embodiment 2 is as follows

[0019] Test items standard test Test Conditions Example 1 Example 2 Ash conten...

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PUM

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Abstract

The invention relates to the technical field of high-molecular material, and more specifically relates to a flame retardant reinforced nylon material with a high glow wire ignition temperature and a preparation method thereof. The flame retardant reinforced nylon material with a high glow wire ignition temperature of the invention comprises nylon 6 resin, brominated flame retardant system, anti-oxidant alkali-free glass fibre and processing auxiliary agent. The material of the invention has an increased glow wire ignition temperature of 850 DEG C compared with 750 DEG C specified in European Union IEC60695 standard, so as to expand usage scope of an unwatched electric appliance; the flame retardant reinforced nylon material has advantages of high strength, high toughness, rapid moulding and good cost performance, and can satisfy requirements of electron electric appliances and household electrical appliances, such as microswitch, socket connector and fuse.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a flame-retardant reinforced nylon material with high glow wire ignition temperature and a preparation method thereof. Background technique [0002] Polyamide 6 (nylon 6 or PA6) is a translucent or opaque milky white semi-crystalline polymer, which is characterized by excellent thermodynamic properties, light weight, good toughness, good chemical resistance and durability, and also has good wear resistance and Self-lubricating properties are widely used in the manufacturing of automobiles and electronic appliances. They are used to manufacture parts with high mechanical strength requirements and heat-resistant, impact-resistant, and abrasion-resistant parts. It has become an important member of the five major engineering plastics. . However, pure nylon resin also has disadvantages such as poor flame retardancy (only up to UL-94V2 level), low mechanical strength, low ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/02C08K13/04C08K7/14B29C47/92B29C48/92
Inventor 刘广闻皮正亮徐建辉刘雪丽胡琛葛嘉宝
Owner GUANGDONG WAYLAM ENG PLASTICS
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