Carbon fiber reinforcement non-bittern flame-proof nylon 66 and preparation method thereof

A technology of flame-retardant nylon and carbon fiber, which is applied in the field of carbon fiber-reinforced halogen-free flame-retardant nylon 66 and its preparation, can solve the problems that environmental protection and performance requirements cannot meet the needs of industrial development, and achieve easy processing, good flame-retardant performance, The effect of high mechanical strength

Inactive Publication Date: 2008-03-12
GUANGDONG HIGH & NEW ENG PLASTICS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the most commonly used nylon reinforced flame retardant on the market is glass fiber reinforced nylon, and most of the flame retardants use halogen flame retardants. The requirements are increasingly unable to meet the needs of industrial development

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0015] A preparation method of carbon fiber reinforced halogen-free flame-retardant nylon 66:

[0016] 1): Weigh the raw materials according to the weight ratio;

[0017] 2): After the surface treatment of the coated red phosphorus flame retardant masterbatch, add the flame retardant synergist and stir and mix evenly in a high-speed mixer;

[0018] 3): after the surface treatment of the dried nylon 66 resin, add the material obtained in step (1), antioxidant, EPDM and processing aid, and then stir and mix evenly in a high-speed blender;

[0019] 4): The material obtained in step (3) is sent into the twin-screw extruder through the feeder, and carbon fiber long fibers are added in the side feeding port of the twin-screw extruder; the feeder speed is 180 ~240r.p.m. In addition, the temperature of each section of the twin-screw extruder from the feeding port to the die head is 250°C, 265°C, 270°C, 270°C, 270°C, 270°C, 265°C, and the speed is 180~280r.p.m, the mixture is sheared...

Embodiment 1

[0024] 1): Weigh the raw materials according to the weight ratio;

[0025] 2): Add 10 parts of Mg(OH) to 20 parts of coated red phosphorus flame retardant masterbatch after surface treatment 3 Whisk in a blender on high to combine well;

[0026] 3): After surface treatment of 50 parts of nylon 66 resin after drying treatment, add the substance obtained through step (1), 0.3 part of antioxidant, 5 parts of POE and 0.2 part of processing aid in a high mixer Stir to mix well;

[0027] 4): The material obtained in step (3) is sent into the twin-screw extruder through a feeder, and 10 parts of polyacrylonitrile carbon fibers are added in the side feeding port of the twin-screw extruder; the feeder The speed is 180r.p.m. In addition, the temperature of each section of the twin-screw extruder from the feed port to the head is 250°C, 265°C, 270°C, 270°C, 270°C, 270°C, and 265°C. It is 180r.p.m.

[0028] 5): The material obtained in step (4) is subjected to stranding, cooling, pell...

Embodiment 2

[0031] 1): Weigh the raw materials according to the weight ratio;

[0032] 2): Add 10 parts of Al(OH) to 20 parts of coated red phosphorus flame retardant masterbatch after surface treatment 3 Whisk in a blender on high to combine well;

[0033] 3): After surface-treating 47 parts of nylon 66 resin after drying treatment, add the material obtained through step (1), 0.3 part of antioxidant, 8 parts of toughening agent and 0.3 part of processing aid in high stirring Stir in the machine to mix evenly;

[0034] 4): The material obtained in step (3) is sent into the twin-screw extruder through a feeder, and 15 parts of polyacrylonitrile carbon fibers are added in the side feeding port of the twin-screw extruder; the feeder The speed is 220r.p.m. In addition, the temperature of each section of the twin-screw extruder from the feed port to the head is 250°C, 265°C, 270°C, 270°C, 270°C, 270°C, and 265°C. It is 220r.p.m.

[0035] 5): The material obtained in step (4) is subjected t...

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Abstract

The invention discloses a carbon-reinforced halogen-free fire-resistant nylon 66, which comprises by weight: nylon 66 resin 30-50 portions, long carbon fiber 10-50 portions, covering red phosphorus substrate 5-20 portions, fire resisting assistant 0-20 portions, flexibilizer 0-10 portions, antioxidant 0.1-1 portions, and processing assistant 0.1-15 portions. The carbon-reinforced halogen-free fire-resistant nylon 66 made by the invention is of high strength, high modulus, small creepage, and permanent anti-static performance, also good fire resistance, high mechanical strength, is resistant to high temperature, light, easy to process, with good fire resistance, and is also environmental friendly. The preparing method of the invention is simple to operate and applicable for industrialized production.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, in particular to a carbon fiber reinforced halogen-free flame-retardant nylon 66 and a preparation method thereof. Background technique [0002] At present, the most commonly used nylon reinforced flame retardant on the market is glass fiber reinforced nylon, and most of the flame retardants use halogen flame retardants. The requirements are increasingly unable to meet the needs of industrial development. The emergence of carbon fiber is a revolution in the history of materials. Carbon fiber is currently the world's preferred high-performance material. It has many excellent properties such as high strength, high modulus, high temperature resistance, fatigue resistance, electrical conductivity, light weight, and easy processing. It is gradually conquering and replace traditional materials. In addition to being widely used in aerospace, aviation and military fields, carbon fiber has beg...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/06C08K9/00B29C47/40C08K3/02C08L51/00
Inventor 王雄刚曾斌郭庆时张积宾刘淳刘述梅赵建青
Owner GUANGDONG HIGH & NEW ENG PLASTICS
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