High glow-wire and fiber halogen-free flame-retardant nylon 66 material and preparation method thereof

A technology of high glow wire and flame-retardant nylon, which is applied in the field of high-glow wire, high-performance fiber-added, halogen-free and environmentally friendly flame-retardant nylon 66 materials and its preparation, can solve the problems of high glow wire performance that cannot meet the requirements of halogen-free environmental protection at the same time, Achieve the effect of smooth production process, low cost and large market competitiveness

Inactive Publication Date: 2012-04-25
SHENZHEN KEJU NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, Chinese enterprises cannot meet the requirements of halogen-free environmental protection and high glow wire performance at the same time.

Method used

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  • High glow-wire and fiber halogen-free flame-retardant nylon 66 material and preparation method thereof
  • High glow-wire and fiber halogen-free flame-retardant nylon 66 material and preparation method thereof
  • High glow-wire and fiber halogen-free flame-retardant nylon 66 material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Dry the PA66 resin at 100°C for 2-3 hours, and dry the composite halogen-free flame retardant at 80°C for 2-3 hours, and control the moisture content below 0.02%. After drying, 100 parts of PA66 resin, 12 parts of halogen-free flame retardant, 0.15 parts of nucleating agent, 0.3 parts of antioxidant, and 0.45 parts of lubricant are placed in a mixing tank and stirred for 10 minutes, and then extruded through a twin-screw extruder For granulation, in the middle section of the extruder, 25 parts by weight of glass fibers are added. The processing temperature is 240-260℃ in the first zone, 240-270℃ in the second zone, 250-270℃ in the third zone, 250-275℃ in the fourth zone, 240-265℃ in the fifth zone, 240-260℃ in the sixth zone, and 250℃ in the seventh zone. -280°C; the extrusion treatment time is 1-3 minutes. The pellets were dried in a blast drying oven at 120°C for 3 hours, and then prepared into standard test specimens through an injection molding machine.

Embodiment 2

[0026] Dry the PA66 resin at 100°C for 2-3 hours, and dry the composite halogen-free flame retardant at 80°C for 2-3 hours, and control the moisture content below 0.02%. After drying, 100 parts of PA66 resin, 15 parts of halogen-free flame retardant, 0.3 part of nucleating agent, 0.4 part of antioxidant, and 0.6 part of lubricant are placed in a mixing bucket and stirred for 10 minutes, and then extruded through a twin-screw extruder For granulation, in the middle section of the extruder, 26 parts by weight of glass fibers are added. The processing temperature is 240-260℃ in the first zone, 240-270℃ in the second zone, 250-270℃ in the third zone, 250-275℃ in the fourth zone, 240-265℃ in the fifth zone, 240-260℃ in the sixth zone, and 250℃ in the seventh zone. -280°C; the extrusion treatment time is 1-3 minutes. The pellets were dried in a blast drying oven at 120°C for 3 hours, and then prepared into standard test specimens through an injection molding machine.

Embodiment 3

[0028] Dry the PA66 resin at 100°C for 2-3 hours, and dry the composite halogen-free flame retardant at 80°C for 2-3 hours, and control the moisture content below 0.02%. After drying, 100 parts of PA66 resin, 18 parts of halogen-free flame retardant, 0.4 part of nucleating agent, 0.5 part of antioxidant, and 0.75 part of lubricant are placed in a mixing tank and stirred for 10 minutes, and then extruded through a twin-screw extruder For granulation, in the middle section of the extruder, 27 parts by weight of glass fibers are added. The processing temperature is 240-260℃ in the first zone, 240-270℃ in the second zone, 250-270℃ in the third zone, 250-275℃ in the fourth zone, 240-265℃ in the fifth zone, 240-260℃ in the sixth zone, and 250℃ in the seventh zone. -280°C; the extrusion treatment time is 1-3 minutes. The pellets were dried in a blast drying oven at 120°C for 3 hours, and then prepared into standard test specimens through an injection molding machine.

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Abstract

The invention discloses a high glow-wire and fiber halogen-free flame-retardant nylon 66 material and a preparation method thereof. The high glow-wire and fiber halogen-free flame-retardant nylon 66 material comprises the following components in parts by weight: 100 parts of PA 66 resin, 12-24 parts of halogen-free fire retardant, 0.15-0.6 parts of nucleating agent, 0.3-0.6 parts of antioxidant, 0.45-1.2 parts of lubricant and 25-30 parts of glass fibre. The high glow-wire and high-performance fiber halogen-free flame-retardant nylon 66 material provided by the invention is excellent in mechanical property, halogen-free, environment friendly and flame-retardant, and the glow-wire does not inflame at 750 DEG C within 30s; and the used raw materials are wide in source and low in cost, therefore, the high glow-wire and fiber halogen-free flame-retardant nylon 66 material is very suitable for industrial production. The prepared high glow-wire and fiber halogen-free flame-retardant nylon 66 material and the preparation method thereof can be widely applied to the field of electronic appliances such as a breaker shell, a motor shell, a connector, a light touch switch and the like.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to a high-glow wire, high-performance fiber-added, halogen-free, environment-friendly and flame-retardant nylon 66 material and a preparation method thereof. Background technique [0002] Nylon 66 (PA66) is the earliest synthetic fiber and the most important product among polyamides. It can be used as both fiber and engineering plastic. PA66 is widely used in industry, clothing and engineering plastics because of its good comprehensive properties, such as high strength, good rigidity, impact resistance, oil and chemical resistance, wear resistance and self-lubricating properties, etc., and the raw materials are easily available and low cost. and other fields. The nylon material modified by glass fiber reinforcement and flame retardancy has higher mechanical strength and better flame retardancy, and can replace some metals and other thermoplastic engineering plastics in electronic a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/06C08K13/04C08K7/14C08K5/098C08K3/34C08K3/36B29C47/92B29C48/92
CPCB29C48/875B29C48/92B29C2948/92704B29C2948/92895
Inventor 徐东徐永胡玉洁
Owner SHENZHEN KEJU NEW MATERIAL
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