Polyamide composition, and preparation method and application thereof

A polyamide composition and a polyamide technology, applied in the field of polyamide compositions, can solve the problems of application limitation, low GWIT, etc., and achieve the effects of good flame retardant performance, improved light-off temperature, good tensile performance and toughness

Active Publication Date: 2013-05-01
TIANJIN KINGFA NEW MATERIAL +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although the halogen-free flame-retardant modified polyamide is less toxic and environmentally friendly than the bromine-antimony flame-retardant system, it also has the disadvantage of low GWIT, and its application is limited in low-voltage electrical and other fields that require high GWIT.

Method used

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  • Polyamide composition, and preparation method and application thereof
  • Polyamide composition, and preparation method and application thereof
  • Polyamide composition, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] Add nylon 6, tris(diethylphosphinate) aluminum, melamine polyphosphate, zinc borate and polyoxymethylene into the twin-screw extruder through the main feed port of the twin-screw extruder according to the weight parts in Table 1 The polyamide composition is obtained after extrusion granulation, cooling, and drying; wherein, the process conditions of the extruder are: the temperature of the first and second stages of the twin-screw extruder is 230~250°C, and the temperature of the third and fourth stages is 250~270°C, the temperature of the fifth and sixth stages is 260~280°C, the temperature of the seventh and eighth stages is 240~270°C, the temperature of the head is 230~270°C, and the screw speed is 150~350 rpm.

Embodiment 2

[0060] Nylon 66, bis(diethylphosphinate) zinc, melamine polyphosphate and zinc borate are added into the twin-screw extruder through the main feed port of the twin-screw extruder according to the weight parts in Table 1 and extruded to produce After pelleting, cooling, and drying, the polyamide composition is obtained; wherein, the process conditions of the extruder are: the temperature of the first and second stages of the twin-screw extruder is 230~250°C, and the temperature of the third and fourth stages is 250~270°C °C, the temperature of the fifth and sixth stages is 260~280°C, the temperature of the seventh and eighth stages is 240~270°C, the temperature of the head is 230~270°C, and the screw speed is 150~350 rpm.

Embodiment 3

[0062] Nylon 6, tris(diethylphosphinate)aluminum, melamine polyphosphate, borax and polyoxymethylene were added into the twin-screw extruder through the main feed port of the twin-screw extruder according to the weight parts in Table 1 and extruded After granulation, cooling, and drying, the polyamide composition is obtained; wherein, the process conditions of the extruder are: the temperature of the first and second stages of the twin-screw extruder is 230~250°C, and the temperature of the third and fourth stages is 250°C. ~270°C, the temperature of the fifth and sixth stages is 260~280°C, the temperature of the seventh and eighth stages is 240~270°C, the temperature of the head is 230~270°C, and the screw speed is 150~350 rpm.

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PUM

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Abstract

The invention discloses a polyamide composition with high glow-wire ignition temperature, and a preparation method and application thereof. The composition comprises the following components by weight: (a) polyamide; (b) a phosphorus flame retardant; (c) a flame retardant synergistic agent; and (d) a flame retardant assistant of borate and / or polyformaldehyde. The invention also provides a preparation method and application of the polyamide composition. The polyamide composition provided by the invention has good flame retardant performance, good mechanical performance and high glow-wire ignition temperature.

Description

technical field [0001] The present invention relates to a composition, in particular to a polyamide composition with a high glow-wire ignition temperature (glow-wire ingnition temperature, abbreviated as GWIT), a preparation method and an application thereof. Background technique [0002] Polyamide resin has excellent properties such as wear resistance, oil resistance, impact resistance, fatigue resistance, corrosion resistance, excellent self-lubrication performance, and small friction coefficient, and is widely used. Flame-retardant modified polyamide is widely used in the fields of electronics, electricity, transportation, electric tools and mechanical parts due to its outstanding mechanical properties and excellent flame-retardant properties. Bromine-antimony flame retardant modification technology has been a common technology for flame retardant modified polyamides due to the small amount of flame retardant added and high flame retardant efficiency. However, bromine-ant...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/00C08L77/02C08L77/06C08L59/04C08K3/38C08K5/3492C08K5/5313B29C47/92B29C48/92
CPCB29C48/911B29C48/04B29C48/875B29C48/92B29C2948/9259B29C2948/92704B29C2948/92885B29C2948/92895
Inventor 谭麟梁惠强金雪峰孙东海陈国雄李东
Owner TIANJIN KINGFA NEW MATERIAL
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