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Halogen-free flame retardant high-temperature nylon

A high-temperature, nylon technology, used in liquid crystal materials, chemical instruments and methods, etc., can solve the problems affecting the production of complex electronic components, serious corrosion, and reduced product flow properties, and achieve good dimensional stability, chemical resistance and size. The effect of excellent stability and good ductility

Inactive Publication Date: 2019-11-05
东莞拓步特高分子材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, dialkylphosphinates are corrosive, and their corrosiveness is particularly severe at high temperatures
In addition, aluminum dialkylphosphinate is solid at the processing temperature of high-temperature nylon, which will cause a decrease in the fluidity of the product and affect the production of complex electronic components.

Method used

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  • Halogen-free flame retardant high-temperature nylon
  • Halogen-free flame retardant high-temperature nylon
  • Halogen-free flame retardant high-temperature nylon

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Halogen-free flame-retardant high-temperature nylon, the liquid crystal polymer is composed of multiple components, and the components are set according to the following mass fractions:

[0050] High temperature nylon resin 45% ~60%

[0051] Halogen-free flame retardant 10% ~20%

[0052] Chopped glass fiber 20%~40%

[0053] Anti-glass fiber exposure agent 0.15%~0.45%

[0054] Stabilizer 0.2%~0.9%

[0055] Antioxidant 0.09%~0.35%.

[0056] The preparation process of the halogen-free flame-retardant high-temperature nylon is as follows:

[0057] (1) First bake the high-temperature nylon particles at a temperature of 100 degrees for 4-5 hours, then mix them with a halogen-free flame retardant in proportion and place them at a constant temperature of 50 degrees for 12 hours;

[0058] (2) Timely mix with stabilizer, antioxidant, and anti-glass fiber exposure agent according to the proportion and mix in the mixer at low speed for 10 minutes;

[0059] (3) In time, the tw...

Embodiment 2

[0061] The liquid crystal polymer is composed of multiple components, and the components are set according to the following mass fractions:

[0062] High temperature nylon resin 45% ~58%

[0063] Halogen-free flame retardant 12% ~20%

[0064] Chopped glass fiber 20%~35%

[0065] Anti-glass fiber exposure agent 0.15%~0.40%

[0066] Stabilizer 0.2%~0.8%

[0067] Antioxidant 0.1%~0.35%.

[0068] The preparation process of the halogen-free flame-retardant high-temperature nylon is as follows:

[0069] (1) First bake the high-temperature nylon particles at a temperature of 100 degrees for 4-5 hours, then mix them with a halogen-free flame retardant in proportion and place them at a constant temperature of 50 degrees for 12 hours;

[0070] (2) Timely mix with stabilizer, antioxidant, and anti-glass fiber exposure agent according to the proportion and mix in the mixer at low speed for 10 minutes;

[0071] (3) In time, the twin-screw extruder is combined with medium-strength she...

Embodiment 3

[0073] The liquid crystal polymer is composed of multiple components, and the components are set according to the following mass fractions:

[0074] High temperature nylon resin 48% ~58%

[0075] Halogen-free flame retardant 12% ~18%

[0076] Chopped glass fiber 25%~35%

[0077]Anti-glass fiber exposure agent 0.15%~0.38%

[0078] Stabilizer 0.3%~0.8%

[0079] Antioxidant 0.1%~0.35%.

[0080] The preparation process of the halogen-free flame-retardant high-temperature nylon is as follows:

[0081] (1) First bake the high-temperature nylon particles at a temperature of 100 degrees for 4-5 hours, then mix them with a halogen-free flame retardant in proportion and place them at a constant temperature of 50 degrees for 12 hours;

[0082] (2) Timely mix with stabilizer, antioxidant, and anti-glass fiber exposure agent according to the proportion and mix in the mixer at low speed for 10 minutes;

[0083] (3) In time, the twin-screw extruder is combined with medium-strength shea...

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Abstract

The invention discloses halogen-free flame retardant high-temperature nylon. The liquid crystal polymer is prepared from, by mass, multiple kinds of components comprising 45%-60% of high-temperature nylon resin, 10%-20% of a halogen-free flame retardant, 20%-40% of chopped glass fibers, 0.15%-0.45% of a glass fiber rich surface resistance agent, 0.2%-0.9% of a stabilizer and 0.09%-0.35% of an antioxidant; the halogen-free flame retardant high-temperature nylon integrates high fire resistance, high intensity and a high melting point, can resist the continuous high temperature of 200 DEG C, canalso keep good size stability, has good ductility, is low in warpage and capable of being applied to almost all application fields with different sizes and strict requirements, has high mechanical andelectrical properties, further has the advantages of easy processing, attractive appearance, laser marking and the like, and achieves the same strength and toughness, excellent chemical resistance and size stability and excellent electrical characteristics in a wet environment.

Description

technical field [0001] The invention relates to a halogen-free flame-retardant high-temperature nylon. Background technique [0002] The miniaturization and multifunctionalization of electronic appliances has prompted the manufacturing industry to accelerate the adoption of surface mount technology (SMT) to achieve high density of electronic components. Since the SMT process requires the use of high-temperature infrared reflow furnaces to solder surface mount components (SMD), SMD materials are required to have outstanding thermal stability, chemical stability and mechanical properties, and semi-aromatic high-temperature nylon is thus extremely used in SMD. big application. However, due to the flammability of general semi-aromatic high-temperature nylon, it is necessary to add flame retardants in actual use to meet fire safety requirements. Traditionally, brominated flame retardants are usually used in semi-aromatic high-temperature nylon to achieve flame retardancy. Howe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/00C08K13/04C08K7/14C09K19/38
CPCC08K7/14C08K13/04C08L2201/02C08L2201/08C08L2201/22C09K19/3809C08L77/00
Inventor 曹红兴肖格华
Owner 东莞拓步特高分子材料有限公司