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Flame-retardant nylon resin composition and preparation method thereof

A technology of nylon resin and composition, which is applied in the field of flame-retardant nylon resin composition and its preparation, and can solve the problems of poor heat resistance, limited application, and easy combustion

Active Publication Date: 2011-11-09
SHENZHEN XINGSHENGDI NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the traditionally prepared nylon resin composition has poor heat resistance and is easy to burn, which limits its further application

Method used

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  • Flame-retardant nylon resin composition and preparation method thereof
  • Flame-retardant nylon resin composition and preparation method thereof
  • Flame-retardant nylon resin composition and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0039] A preparation method of the above-mentioned flame-retardant nylon resin composition, comprising the steps of:

[0040] Each component of following parts by weight is provided:

[0041]

[0042]

[0043] Pour the above components into a mixer and stir evenly, and place them in a twin-screw extruder with a screw speed of 42Hz. The temperature settings in each zone of the twin-screw extruder are: 260°C for the first zone, 260°C for the second zone, and 270°C for the third zone. ℃, zone 4 270℃, zone 5 270℃;

[0044] extruding, adding glass fibers in proportion to the weight at the fiber-filling hole of the twin-screw extruder, and pelletizing to obtain a flame-retardant nylon resin composition.

[0045] The preparation method has the advantages of simple principle, low cost and low requirements on equipment, and the prepared flame-retardant nylon resin composition has good performance and can be widely popularized and applied.

Embodiment 1

[0052] The composition ratio of the following table is prepared (1 part=100 grams):

[0053] PA66

100 copies

GMA-G-EMA

1 copy

Fiberglass (Big Rock 988A)

50 copies

brominated polystyrene

45 copies

Antimony trioxide

10 copies

Anti-dripping agent PTFE

0.1 part

Antioxidant 4,4'-thiobis(6-tert-butyl-3-methylphenol)

0.3 parts

Lubricant EBS

0.2 parts

[0054] Pour all the prepared materials except glass fiber into the mixer and stir evenly, and place them in the twin-screw extruder, the screw speed is 42Hz, and the set temperature is: 260°C for the first zone, 260°C for the second zone, and 270°C for the third zone. ℃, 270 ℃ in the fourth zone, 270 ℃ in the fifth zone, extrude, and at the same time add 50 parts of glass fiber in proportion to the weight of the fiber hole of the screw, and granulate to obtain a flame-retardant nylon resin composition.

[0055] Performance test results:

...

Embodiment 2

[0058] The composition ratio of the following table is prepared (1 part=100 grams):

[0059] PA66

100 copies

MAH-G-POE

5 copies

Fiberglass (Big Rock 988A)

60 copies

brominated epoxy resin

42 copies

Antimony trioxide

11 copies

Anti-dripping agent PTFE

0.3 parts

Antioxidant 4,4'-thiobis(6-tert-butyl-3-methylphenol)

0.3 parts

Lubricant EBS

0.2 parts

[0060] Pour all the prepared materials except glass fiber into the mixer and stir evenly, and place them in the twin-screw extruder, the screw speed is 42Hz, and the set temperature is: 260°C for the first zone, 260°C for the second zone, and 270°C for the third zone. ℃, 270 ℃ in the fourth zone, 270 ℃ in the fifth zone, extrude, and at the same time add 60 parts of glass fiber in proportion to the weight of the fiber hole of the screw, and granulate to obtain a flame-retardant nylon resin composition.

[0061] Performance test results: ...

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Abstract

The invention relates to a flame-retardant nylon resin composition which comprises the following components in parts by weight: 100 parts of nylon resin, 0.5-5 parts of compatibilizer, 1-80 parts of glass fiber, 20-60 parts of flame retardant, 0.1-0.5 part of anti-dripping agent and 0.1-2 parts of antioxidant and lubricant. Due to the addition of the flame retardant, the flame-retardant nylon resin composition has excellent flame-retardant performance; at the same time, the components in the formula have better compatibility, and the synergy of the lubricant and antioxidant can improve the processing flow properties of the nylon resin and improve the dispersion of the flame retardant in the composition; and the prepared flame-retardant nylon resin composition has the advantages of good outdoor weathering resistance, high impact strength, bending strength and tensile strength, good flame retardancy and high mobility. In addition, the invention also relates to a preparation method of the flame-retardant nylon resin composition.

Description

【Technical field】 [0001] The invention relates to the field of polymer materials, in particular to a flame-retardant nylon resin composition and a preparation method thereof. 【Background technique】 [0002] Nylon resin, that is, polyamide, has excellent mechanical strength, wear resistance, self-lubricating property, corrosion resistance and good processing and molding properties. Base resin with excellent comprehensive properties. However, the traditionally prepared nylon resin composition has poor heat resistance and is easy to burn, which limits its further application. 【Content of invention】 [0003] Based on this, it is necessary to provide a flame-retardant nylon resin composition with better flame-retardant effect. [0004] A flame-retardant nylon resin composition, comprising the following components in parts by weight: [0005] [0006] In a preferred embodiment, a flame retardant synergist is also included in parts by weight of 7-15 parts. [0007] In a pr...

Claims

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Application Information

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IPC IPC(8): C08L77/02C08L77/06C08L25/06C08L63/00C08K13/04C08K7/14C08K5/03C08K5/3492C08K3/22B29C47/92B29C48/92
CPCB29C48/40B29C48/875B29C48/92B29C2948/92704B29C2948/92895
Inventor 许第修段海斌
Owner SHENZHEN XINGSHENGDI NEW MATERIALS
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