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Flame-retardant glass fiber enhanced PA (polyamide)12/PA1010 alloy composition and preparation method thereof

A technology of PA1220 and composition, applied in the field of alloy composition and its preparation, can solve the problems of limited use of flame retardants, reduced mechanical properties of materials, electrical insulation properties, required lag, etc., and achieves short residence time and improved anti-oxidation performance. , the effect of reducing the coefficient of friction

Inactive Publication Date: 2012-11-14
SHANGHAI SUNNY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because the development of flame retardants is relatively lagging behind the industry's increasing requirements for materials, the addition of many kinds of flame retardants to materials will greatly reduce the mechanical properties and electrical insulation properties of materials.
For example, compared with the tracking index (CTI) dropped from 600V to 200V or even lower, in addition, with the implementation of EU RoHs and WEEE directives, the traditional brominated flame retardant system can no longer meet this requirement, while some flame retardant The use of drugs will also be restricted

Method used

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  • Flame-retardant glass fiber enhanced PA (polyamide)12/PA1010 alloy composition and preparation method thereof
  • Flame-retardant glass fiber enhanced PA (polyamide)12/PA1010 alloy composition and preparation method thereof
  • Flame-retardant glass fiber enhanced PA (polyamide)12/PA1010 alloy composition and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0017] This example relates to a flame-retardant glass fiber reinforced PA12 / PA1010 alloy composition and its preparation method;

[0018] Each component of the alloy composition and the weight percentage content of each component are: PA12 41%, PA1010 20%, compound flame retardant masterbatch 9.9%, glass fiber 28%, antioxidant 1.0%, lubricating dispersant 0.1% %.

[0019] The preparation method of the alloy composition includes the following steps: weighing each component according to the following components and their weight percentages: PA12 41%, PA1010 20%, compound flame-retardant masterbatch 9.9%, glass fiber 28%, Antioxidant 1.0%, lubricating and dispersing agent 0.1%; put it into a high-mixer and mix for 2 minutes, discharge, and then extrude and granulate with a twin-screw extruder. The processing temperature is 165-200°C, and the screw speed is 30Hz. The temperature of each section of the twin-screw extruder is shown in Table 2.

[0020] The compound flame retardan...

Embodiment 2

[0022] This example relates to a flame-retardant glass fiber reinforced PA12 / PA1010 alloy composition and its preparation method;

[0023] Each component of the alloy composition and the weight percentage content of each component are: PA12 30%, PA1010 34%, compound flame retardant masterbatch 15%, glass fiber 20%, antioxidant 0.7%, lubricating dispersant 0.3% %.

[0024] The preparation method of the alloy composition includes the following steps: weighing each component according to the following components and their weight percentages: PA12 30%, PA1010 34%, compound flame-retardant masterbatch 15%, glass fiber 20%, Antioxidant 0.7%, lubricating and dispersing agent 0.3%; put it into a high-mixer and mix for 3 minutes, discharge, and then extrude and granulate with a twin-screw extruder. The processing temperature is 165-200°C, and the screw speed is 33Hz. The temperature of each section of the twin-screw extruder is shown in Table 2.

[0025] The compound flame retardant ...

Embodiment 3

[0027] This example relates to a flame-retardant glass fiber reinforced PA12 / PA1010 alloy composition and its preparation method;

[0028] Each component of the alloy composition and the weight percentage content of each component are: PA12 20%, PA1010 41%, compound flame retardant masterbatch 4%, glass fiber 34%, antioxidant 0.3%, lubricating dispersant 0.7% %.

[0029] The preparation method of the alloy composition includes the following steps: weighing each component according to the following components and their weight percentages: PA12 20%, PA1010 41%, compound flame retardant masterbatch 4%, glass fiber 34%, Antioxidant 0.3%, lubricating and dispersing agent 0.7%; put it into a high-mixer and mix for 4 minutes, discharge, and then extrude and granulate with a twin-screw extruder. The processing temperature is 165-200°C, and the screw speed is 36Hz. The temperature of each section of the twin-screw extruder is shown in Table 2.

[0030] The compound flame retardant ma...

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Abstract

The invention relates to a flame-retardant glass fiber enhanced PA (polyamide)12 / PA1010 alloy composition and a preparation method of the flame-retardant glass fiber enhanced PA (polyamide)12 / PA1010 alloy composition. The alloy composition comprises the following components in weight: 20-41% of PA12, 20-41% of PA1010, 0-15% of complex flame retarding master batch, 20-40% of glass fiber, 0.1-1% of anti-oxygen agent and 0.1-1% of lubricant dispersant. The preparation method of the alloy composition comprises the following steps of: weighing the components according to the proportion; putting the components into a high mixing machine to mix for 2-5 minutes; discharging the materials; then, extruding the materials by a double-screw extruder; and pelletizing, wherein the processing temperature is 165-200 DEG C, and the rotational frequency of the screw is 30-40Hz. The composition disclosed by the invention has the advantages that the CTI (Comparative Tracking Index) value is high, the flame retardant precipitating property is low, halogen is free, environmental-protection is realized, and the overall performance is balanced, and can be widely applied to the field of electronic products such as contactors, leakage protectors, breaker shells, and the like.

Description

technical field [0001] The invention relates to an alloy composition and a preparation method thereof, in particular to a flame-retardant glass fiber reinforced PA12 / PA1010 alloy composition and a preparation method thereof. Background technique [0002] In recent years, my country's electrical and electronic industry has developed rapidly, and the demand for high-electrical insulation and flame-retardant reinforced engineering plastics is increasing, such as low-voltage vacuum contactors, circuit breakers, leakage protectors, connectors, low-voltage switches, thin-walled electrical and electronic components, etc. It is necessary to use engineering plastic materials with good comprehensive mechanical properties, flame retardant properties and electrical insulation properties. In this product area, polyamide (PA) is used in the largest amount. However, because the development of flame retardants is relatively lagging behind the industry's increasing requirements for materials...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/02C08L77/06C08L83/04C08K9/06C08K7/14C08K3/02C08J3/22
Inventor 郭建鹏张强杨涛陈晓东
Owner SHANGHAI SUNNY