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Flame-retardant glass fiber reinforced PA66 composite material

A technology of PA66 and composite materials, applied in the field of flame retardant glass fiber reinforced PA66 composite materials, can solve the problems of difficulty in popularization, corrosion, poor fire resistance of glass fiber PA66 composite materials, etc., to eliminate the wick effect and improve the flame retardancy. performance, excellent mechanical properties and the effect of flame retardant properties

Inactive Publication Date: 2017-06-09
惠州卫生职业技术学院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing PA66 and glass fiber products add bromine, chlorine and other halogen flame retardants to their raw materials in order to achieve better flame retardant effect. Although the flame retardant effect is excellent, it will produce smoky and toxic halogenated Hydrogen and other halogen-containing organic substances, and dioxins will be produced when burned, which is extremely harmful to the human body
As we all know, halogen-based flame retardant materials will produce a large amount of toxic and corrosive smoke when burned, which will pollute and corrode the environment and molds, and have been banned in many developed countries; most halogen-free flame-retardant Although the effect of the drug is good, it is difficult to promote its use in China due to the high cost
In addition, these flame retardants have no substantial mitigation effect on the "wick effect" of glass fiber, and are not resistant to high temperature, and are easy to decompose and fail at high temperature, which cannot fundamentally solve the problem of poor fire resistance of glass fiber PA66 composite materials. question

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Present embodiment provides a kind of flame-retardant glass fiber reinforced PA66 composite material, and its raw material comprises by weight:

[0017] 12 parts of glass fiber;

[0018] PA66 93 copies;

[0019] 2 parts of flame retardant;

[0020] The raw materials of the flame retardant include 10 parts of magnesium acetate and 2.31 parts of ferric ammonium citrate by weight.

[0021] In this embodiment, 0.3 parts by weight of a thermoplastic stabilizer is also included; the thermoplastic stabilizer includes 4 parts by weight of sodium sulfate, 0.1 part of sodium diacetate and 5 parts of nitric acid at a concentration of 3 wt%.

[0022] It can be prepared by the blending method of the prior art.

Embodiment 2

[0024] Present embodiment provides a kind of flame-retardant glass fiber reinforced PA66 composite material, and its raw material comprises by weight:

[0025] 15 parts of glass fiber;

[0026] PA66 90 copies;

[0027] Flame retardant 2-5 parts;

[0028] The raw materials of the flame retardant include 10 parts of magnesium acetate and 2.31 parts of ferric ammonium citrate by weight.

[0029] In this embodiment, 0.3 parts by weight of a thermoplastic stabilizer is also included; the thermoplastic stabilizer includes 4 parts by weight of sodium sulfate, 0.1 part of sodium diacetate and 5 parts of nitric acid at a concentration of 3 wt%.

[0030] It can be prepared by the blending method of the prior art.

Embodiment 3

[0032] Present embodiment provides a kind of flame-retardant glass fiber reinforced PA66 composite material, and its raw material comprises by weight:

[0033] 10 parts of glass fiber;

[0034] PA66 100 copies;

[0035] 1.3 parts of flame retardant;

[0036] The raw materials of the flame retardant include 10 parts of magnesium acetate and 2.31 parts of ferric ammonium citrate by weight.

[0037] In this embodiment, 0.3 parts by weight of a thermoplastic stabilizer is also included; the thermoplastic stabilizer includes 4 parts by weight of sodium sulfate, 0.1 part of sodium diacetate and 5 parts of nitric acid at a concentration of 3 wt%.

[0038] It can be prepared by the blending method of the prior art.

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PUM

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Abstract

The invention discloses a flame-retardant glass fiber reinforced PA66 composite material. The invention specifically designs a glass fiber PA66 composite material added with a flame retardant. The composite material comprises proper amounts of magnesium acetate and ammonium ferric citrate, can effectively improve flame retardant performance of a product, does not generate combustion and dripping at a high temperature, and effectively eliminate the wick effect of glass fiber. The glass fiber PA66 composite material provided by the invention has excellent mechanical properties and flame retardant performance, thereby being especially applicable to preparation of automobile parts, electronic product elements, etc.

Description

technical field [0001] The invention relates to the technical field of composite materials, in particular to a flame-retardant glass fiber reinforced PA66 composite material. Background technique [0002] Glass fiber reinforced nylon 66 (PA66) material has high strength, high impact resistance, and good dimensional stability. It is a "strong and tough" material. After adding glass fiber reinforcement to PA66, its mechanical properties and heat resistance are greatly improved. and dimensional stability. In practical applications, plastic can replace steel and reinforced engineering plastics to meet the requirements of light weapon packaging boxes, automotive fields, home appliances and other fields. Existing PA66 polymers usually have poor flame retardancy and low safety, which limits their application in many fields; for example, in the application of lighting equipment / automotive construction, PA66 polymers must meet very stringent fire protection standards. The flame ret...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/06C08K13/04C08K7/14C08K5/098C08K3/30C08K3/28
CPCC08K13/04C08K3/28C08K3/30C08K5/098C08K7/14C08K2003/3045C08K2201/014C08L2201/02C08L77/06
Inventor 李莉玲
Owner 惠州卫生职业技术学院