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Antiflaming glass fiber reinforced PA46 (polytetramethyleneadiamide) resin and preparation method thereof

A technology of resin and glass fiber, which is applied in the field of flame retardant glass fiber reinforced PA46 resin and its preparation, can solve the problems of insufficient mechanical properties and flame retardant properties, and achieve the effect of good mechanical properties and good flame retardant properties

Inactive Publication Date: 2013-03-20
SHENZHEN KEJU NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the PA46 modified materials in the prior art are not enough in terms of mechanical properties and flame retardancy

Method used

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  • Antiflaming glass fiber reinforced PA46 (polytetramethyleneadiamide) resin and preparation method thereof
  • Antiflaming glass fiber reinforced PA46 (polytetramethyleneadiamide) resin and preparation method thereof
  • Antiflaming glass fiber reinforced PA46 (polytetramethyleneadiamide) resin and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The flame-retardant glass fiber reinforced PA46 resin of this embodiment, by weight percentage, is made up of following components:

[0024] PA46 resin 66%; compatibilizer 5%; main flame retardant 13%; auxiliary flame retardant 5%; alkali-free long fiber 10%; auxiliary agent 1%.

[0025] Its preparation method is as follows:

[0026] Step 1, each component is weighed by the above-mentioned percentage by weight, and each component that weighs is dried;

[0027] Step 2. Put the dried PA46 resin, compatibilizer, main flame retardant, auxiliary flame retardant and auxiliary agent in a high-speed mixer or mixer and mix for 10 minutes;

[0028] Step 3. Add the mixed material in step 2 into the hopper of the twin-screw extruder, add alkali-free long fibers in the middle, and extrude and granulate through melting reaction; the process conditions of the twin-screw extruder are: screw length-to-diameter ratio 40, the temperature of the front section is 290°C, the temperature of...

Embodiment 2

[0030] The flame-retardant glass fiber reinforced PA46 resin of this embodiment, by weight percentage, is made up of following components:

[0031] PA46 resin 50%; compatibilizer 4%; main flame retardant 11%; auxiliary flame retardant 3%; alkali-free long fiber 30%; auxiliary agent 2%.

[0032] Its preparation method is as follows:

[0033] Step 1, each component is weighed by the above-mentioned percentage by weight, and each component that weighs is dried;

[0034] Step 2. Put the dried PA46 resin, compatibilizer, main flame retardant, auxiliary flame retardant and auxiliary agent in a high-speed mixer or mixer and mix for 20 minutes;

[0035] Step 3. Add the mixed material in step 2 into the hopper of the twin-screw extruder, add alkali-free long fibers in the middle, and extrude and granulate through melting reaction; the process conditions of the twin-screw extruder are: screw length-to-diameter ratio 40, the temperature of the front section is 305°C, the temperature of...

Embodiment 3

[0037] The flame-retardant glass fiber reinforced PA46 resin of this embodiment, by weight percentage, is made up of following components:

[0038] PA46 resin 45%; compatibilizer 3%; main flame retardant 9%; auxiliary flame retardant 5%; alkali-free long fiber 35%; auxiliary agent 3%.

[0039] Its preparation method is as follows:

[0040] Step 1, each component is weighed by the above-mentioned percentage by weight, and each component that weighs is dried;

[0041] Step 2. Put the dried PA46 resin, compatibilizer, main flame retardant, auxiliary flame retardant and auxiliary agent in a high-speed mixer or mixer and mix for 15 minutes;

[0042] Step 3. Add the mixed material in step 2 into the hopper of the twin-screw extruder, add alkali-free long fibers in the middle, and extrude and granulate through melting reaction; the process conditions of the twin-screw extruder are: screw length-to-diameter ratio 40, the temperature of the front section is 300°C, the temperature of ...

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Abstract

The invention discloses an antiflaming glass fiber reinforced PA46 (polytetramethyleneadiamide) resin and a preparation method thereof. The antiflaming glass fiber reinforced PA46 resin comprises the following components in percentage by weight: 45-70% of PA46 resin, 3-5% of compatilizer, 9-13% of main fire retardant, 3-5% of auxiliary fire retardant, 10-35% of non-alkali filament and 1-3% of accessory ingredient. The preparation method comprises the following steps of: weighing each component in percentage by weight; drying each weighed component; mixing the dried PA46 resin, the compatilizer, the main fire retardant, the auxiliary fire retardant and the accessory ingredient in a high-speed mixer or stirrer for 10-20 minutes; adding the mixed materials into the hopper of a double-screw extruder; adding the non-alkali filament into the middle section; and after a fusion reaction, extruding and pelleting. The antiflaming glass fiber reinforced PA46 resin prepared with the preparation method has the advantages of good antiflaming property and good mechanical properties, such as tensile strength, flexural modulus, impact strength and the like.

Description

[technical field] [0001] The invention relates to the field of polymer materials, in particular to a flame-retardant glass fiber reinforced PA46 resin and a preparation method thereof. [Background technique] [0002] PA46 (polybutylene adipamide) is a new type of polyesteramide with high melting point and high crystallinity. Dutch Royal Enterprise DSM (Disman) Engineering Plastics Company was the first in the world to successfully establish the method of industrial production of PA46, the trade name is Stanyl. [0003] PA46 is an aliphatic polyamide formed by polycondensation of butanediamine and adipic acid. Although it has a similar molecular structure to PA66, PA46 has more amide groups per chain of a given length and a more symmetrical chain structure; and The highly symmetrical chain structure leads to high crystallinity (about 70%) and fast crystallization speed, so the melting point is higher (295°C), the heat distortion temperature is also high, and the long-term us...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L77/06C08L51/06C08K13/04C08K7/14C08K5/20C08K3/22C08F255/02
Inventor 徐东徐永文胜
Owner SHENZHEN KEJU NEW MATERIAL