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PA66 composite material and preparation method thereof

A technology of PA66 and composite materials, applied in the field of polymer materials, can solve the problems of insufficient anti-aging properties of PA66, and achieve the effect of improving anti-aging properties, improving anti-aging properties, and increasing the value of promotion.

Inactive Publication Date: 2018-12-28
ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a PA66 composite material and its preparation method to solve the problem that the anti-aging performance of the existing PA66 cannot meet the requirements of some specific fields

Method used

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  • PA66 composite material and preparation method thereof
  • PA66 composite material and preparation method thereof
  • PA66 composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0035] The preparation steps of anti-aging masterbatch include:

[0036] (1) Weigh a certain amount of nano-TiO2 and silane coupling agent KH550, put the two into a three-necked flask, and react for 30-40min to obtain modified nano-TiO2;

[0037] (2) Weigh a certain amount of PA66 salt, concentrated phosphoric acid, 3,3,4,4-biphenyltetracarboxylic dianhydride, modified nano TiO2 and deionized water;

[0038] (3) PA66 salt, concentrated phosphoric acid, 3,3,4,4-biphenyltetracarboxylic dianhydride and nano-TiO 2 Put it into the reaction kettle, stir evenly, add deionized water, and stir again;

[0039] (4) After sealing the lid of the kettle, start to increase the temperature and pressure. When the temperature in the kettle reaches 220°C and the pressure reaches 2.3MPa, keep the temperature and pressure for 3-5 hours;

[0040] (5) Adjust the pressure and temperature in the kettle, raise the temperature in the kettle to 265° C., reduce the pressure to normal pressure, and keep ...

Embodiment 1

[0051] (1) Weigh 80 parts of PA66, 8 parts of anti-aging masterbatch, 10 parts of POE, 0.1 part of Irganox168 and mix them evenly to obtain a mixture;

[0052] (2) Extrude and granulate the mixture obtained in step (1) to obtain PA66 composite material P1.

[0053] Among them, the temperature and screw speed of each zone of the twin-screw extruder are respectively: the temperature of the first zone is 200°C, the temperature of the second zone is 260°C, the temperature of the third zone is 260°C, the temperature of the fourth zone is 260°C, the temperature of the fifth zone is 260°C, the temperature of the sixth zone is 260°C, The head temperature is 260°C; the screw speed is 200r / min.

Embodiment 2

[0055](1) Weigh 100 parts of PA66, 12 parts of anti-aging masterbatch, 16 parts of POE, 0.1 part of Irganox168, 0.2 part of Irganox1330, 0.2 part of Irganox1010 and mix them evenly to obtain a mixture;

[0056] (2) Extrude and granulate the mixture obtained in step (1) to obtain PA66 composite material P2.

[0057] Among them, the temperature and screw speed of each zone of the twin-screw extruder are respectively: the temperature of the first zone is 220°C, the temperature of the second zone is 280°C, the temperature of the third zone is 280°C, the temperature of the fourth zone is 280°C, the temperature of the fifth zone is 280°C, and the temperature of the sixth zone is 280°C. The head temperature is 280°C; the screw speed is 280r / min.

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Abstract

The invention relates to a PA66 composite material and a preparation method thereof. The PA66 composite material is composed of the following components by weight: 80-100 parts of PA66, 8-12 parts ofanti-aging masterbatch, 10-16 parts of toughening agent and 0.1-0.5 part of antioxidant composition. The anti-aging masterbatch is modified nano-TiO2 coated with PA66 salt and 3,3,4,4-biphenyltetracarboxylic dianhydride. After modified nano-TiO2 particles are coated, amino groups on the surface can be combined with carboxyl groups in a PA66 molecular chain to form the anti-aging masterbatch and improve the anti-aging performance of PA66. The material makes up for the shortcomings of the prior art and has a great promotion value.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, in particular to a PA66 composite material and a preparation method thereof. Background technique [0002] Polyamide 66 (PA66), as a common thermoplastic, is widely used. However, with the development of science and technology, in some specific fields, people have higher and higher requirements for the performance of PA66 materials, especially anti-aging performance, which greatly limits the application of PA66 composite materials in these specific fields. [0003] The inventor innovatively used the anti-aging masterbatch to improve the anti-aging performance of PA66 composite materials. This method has not been reported so far, which has very practical significance for expanding the application range of PA66 composite materials. Contents of the invention [0004] The purpose of the present invention is to provide a PA66 composite material and its preparation method to solve the prob...

Claims

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Application Information

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IPC IPC(8): C08L77/06C08L23/08C08K9/10C08K3/22C08J3/22
CPCC08J3/226C08J2377/06C08J2423/08C08J2477/06C08K9/10C08K2003/2241C08K2201/003C08K2201/011
Inventor 刘凯黄家奇喻春凤
Owner ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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