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Flame-retardant polyamide composite material and preparation method thereof

A technology of flame-retardant polyamide and composite materials, which is applied in the field of flame-retardant polyamide composite materials, can solve the problems of the influence of physical and mechanical properties of materials, the limitation of strong corrosiveness on wide application, the influence of mechanical properties, etc., so as to expand the scope of use and application fields , Excellent non-combustibility, high oxygen index effect

Inactive Publication Date: 2012-07-11
SHANGHAI KINGFA SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the addition of a large amount of inorganic substances has a great influence and damage on the physical and mechanical properties of the material.
Phosphorus-based flame retardants are highly corrosive to molds, which greatly limits their wide application
Nitrogen-containing flame retardants, such as melamine cyanurate (MCA) and melamine derivatives, also have good flame retardant effects on polyamide resins, but the mechanical properties of the system will be affected to a certain extent

Method used

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  • Flame-retardant polyamide composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Put 68 kg of PA6, 25 kg of phenoxy polyphosphazene, 2 kg of magnesium oxide, 3 kg of XB-1000, 0.6 kg of Irganox 168, 0.8 kg of zinc stearate, 0.6 kg of Irganox 1010 in an aspect ratio of 38:1 Melt, mix and disperse in a twin-screw extruder at an extrusion temperature of 220°C for extrusion and granulation.

[0032]

Embodiment 2

[0034] Put 68 kg of PA66, 25 kg of phenoxy polyphosphazene, 2 kg of magnesium oxide, 3 kg of XB-1000, 0.6 kg of Irganox 168, 0.8 kg of zinc stearate, 0.6 kg of Irganox 1010 in an aspect ratio of 38:1 Melting, mixing and dispersing in a twin-screw extruder, the extrusion temperature is 230°C, extrusion granulation.

[0035]

Embodiment 3

[0037] 50 kg of PA6, 15 kg of glass fiber, 5 kg of talc, 20 kg of N-(dichlorophosphoryl) trichlorophosphazene, 4 kg of aluminum hydroxide, 4 kg of XB-1000, 0.6 kg of Irganox 1010, 0.8 kg of hard Zinc fatty acid and 0.6 kg of Irganox 1098 were melt-mixed and dispersed in a twin-screw extruder with an aspect ratio of 38:1, and the extrusion temperature was 220° C. to extrude and granulate.

[0038]

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Abstract

The invention discloses a flame-retardant polyamide composite material and a method for preparing the flame-retardant polyamide composite material. The flame-retardant polyamide composite material is characterized by comprising 40-80wt% (weight percent) of polyamide resin, 0-30wt% of reinforcing material, 10-25wt% of flame retardant, 2-4wt% of synergistic flame retardant, 2-5wt% of compatibilizer, 0.5-1wt% of heat stabilizer and 0.5-1wt% of processing aid. The method for preparing the flame-retardant polyamide composite material comprises the following steps: adding the polyamide resin, the reinforcing material, the flame retardant, the synergistic flame retardant, the compatibilizer, the heat stabilizer and the processing aid into a twin-screw extruder, melting, mixing, extruding and granulating. The flame-retardant polyamide composite material disclosed by the invention has stable thermal stability and flame-retardant effect, good comprehensive mechanical performance and processing and forming performance and wider application range and field and can be applied to the fields of automotive industry, electronic industry and furniture industry.

Description

technical field [0001] The invention relates to a flame-retardant polyamide composite material, which belongs to the technical field of polymer materials. Background technique [0002] Polyamide resin is a thermoplastic general-purpose engineering plastic with excellent comprehensive properties. It has excellent temperature resistance, and its thermal decomposition temperature is usually greater than 350°C. It can be used continuously at 80-120°C and has good tensile strength. Strength, is the preferred material for mechanical parts, and also has excellent impact toughness, corrosion resistance to acids, alkalis, most inorganic salt solutions, halogenated alkanes, hydrocarbons, esters, ketones, etc., excellent wear resistance, self-lubricating It can be widely used in functional components in the fields of electronics, automobiles, chemicals and electronic devices, such as gears, rollers, pulleys, roller shafts, impellers in pump bodies, fan blades, high-pressure sealing enc...

Claims

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Application Information

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IPC IPC(8): C08L77/00C08L77/02C08L77/06C08K13/04C08K7/14C08K3/34C08K3/26C08K5/5399C08K3/22B29B9/06B29C47/92B29C48/92
CPCB29C48/04B29C48/40B29C48/625B29C48/92B29C2948/92704B29C2948/92895
Inventor 张现军吉继亮张永
Owner SHANGHAI KINGFA SCI & TECH
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