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Continuous long carbon fiber-reinforced MXD6 complex and preparation method thereof

A long carbon fiber and composite technology is applied in the field of continuous long carbon fiber reinforced MXD6 composite and its preparation, which can solve the problems of different components and achieve the effects of improving fluidity, good appearance and improving comprehensive performance.

Inactive Publication Date: 2013-12-18
SHANGHAI SUNNY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

MXD6 resin is used in the above-mentioned patents, but the components in the prepared composite materials are different, and there is no report about the continuous long carbon fiber reinforced MXD6 composite of the present invention

Method used

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  • Continuous long carbon fiber-reinforced MXD6 complex and preparation method thereof
  • Continuous long carbon fiber-reinforced MXD6 complex and preparation method thereof
  • Continuous long carbon fiber-reinforced MXD6 complex and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～ Embodiment 4

[0023] Embodiment 1~Example 4 and Comparative Example 1~Comparative Example 4

[0024] MXD6 is homopolymer MXD6, the continuous long carbon fiber is alkali-free long carbon fiber whose surface has been treated with silane coupling agent, the glass fiber is alkali-free glass fiber whose surface has been treated with silane coupling agent, and the compatibilizer is maleic anhydride grafted MXD6, the antioxidant is a high molecular weight hindered phenolic antioxidant, and the lubricant is TAF lubricant. Each raw material was weighed according to the weight percentage shown in Table 1.

[0025] Table 1 Weight percentage (wt%) of each raw material in Example 1-Example 4 and Comparative Example 1-Comparative Example 4

[0026]

[0027] Put MXD6, compatibilizer, antioxidant and lubricant into the high mixer and mix for 5 minutes, and then discharge; add the obtained premix into the twin-screw extruder, and plasticize it through the twin-screw extruder, The temperature of the t...

Embodiment 5

[0035] MXD6 is homopolymer MXD6, the continuous long carbon fiber is alkali-free long carbon fiber whose surface has been treated with silane coupling agent, the compatibilizer is maleic anhydride grafted MXD6, the antioxidant is high molecular weight hindered phenolic antioxidant, lubricant For TAF lubricants. Take each raw material according to the following weight percentages:

[0036] MXD6 67%, continuous long carbon fiber 25%, compatibilizer 6%, antioxidant 1%, lubricant 1%.

[0037] Put MXD6, compatibilizer, antioxidant and lubricant into the high mixer and mix for 5 minutes, and then discharge; add the obtained premix into the twin-screw extruder, and plasticize it through the twin-screw extruder, The temperature of the twin-screw extruder is 270-280°C, the first stage is 270°C, the second stage is 270°C, the third stage is 275°C, the fourth stage is 275°C, the fifth stage is 275°C, the sixth stage is 280°C, the seventh stage is 280°C, and the eighth stage is 270°C ℃,...

Embodiment 6

[0039] MXD6 is homopolymer MXD6, the continuous long carbon fiber is alkali-free long carbon fiber whose surface has been treated with silane coupling agent, the compatibilizer is maleic anhydride grafted MXD6, the antioxidant is high molecular weight hindered phenolic antioxidant, lubricant For TAF lubricants. Take each raw material according to the following weight percentages:

[0040] MXD6 53.9%, continuous long carbon fiber 35%, compatibilizer 10%, antioxidant 0.1%, lubricant 1%.

[0041] Put MXD6, compatibilizer, antioxidant and lubricant into the high mixer and mix for 3 minutes, then discharge; add the obtained premix into the twin-screw extruder, and plasticize it through the twin-screw extruder, The temperature of the twin-screw extruder is 260-280°C, the first stage is 260°C, the second stage is 270°C, the third stage is 275°C, the fourth stage is 275°C, the fifth stage is 275°C, the sixth stage is 280°C, the seventh stage is 280°C, and the eighth stage is 270°C ℃...

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Abstract

The invention discloses a continuous long carbon fiber-reinforced MXD6 complex. The complex is prepared from the following raw material components in percentage by weight: 50%-75% of MXD6, 20%-40% of continuous long carbon fiber, 2%-10% of compatibilizer, 0.1%-1% of antioxidant and 0.1%-1% of lubricant. The invention further discloses a preparation method of the continuous long carbon fiber-reinforced MXD6 complex. The mechanical properties and other physical properties of the product, namely the continuous long carbon fiber-reinforced MXD6 complex, are better than those of a short chopped fiber-reinforced composite material, and the continuous long carbon fiber-reinforced MXD6 complex has the advantages of high mechanical strength and impact resisting strength, good appearance and low warpage, and can be used for industrial or civil products and other fields.

Description

technical field [0001] The invention relates to the technical field of carbon fiber reinforced MXD6 composites, in particular to a continuous long carbon fiber reinforced MXD6 composite and a preparation method thereof. Background technique [0002] MXD6 is a crystalline nylon resin synthesized by polycondensation reaction using m-xylylenediamine and adipic acid as raw materials. At present, the fibers used for MXD6 material reinforcement include glass fibers, stainless steel fibers and so on. Fiber-reinforced MXD6 materials can be divided into two types of reinforcement: chopped fiber reinforcement and continuous long fiber reinforcement. Compared with traditional chopped fiber reinforced pellets, long fiber reinforced thermoplastic composites (LFRTP) have better comprehensive properties. [0003] The average length of fibers in long carbon fiber reinforced thermoplastic composite products is relatively large, and long carbon fibers can form a certain network structure in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/06C08L51/08C08K13/06C08K9/06C08K7/06C08K3/04C08K5/13
Inventor 郭建鹏金幸朱晓龙陈超杨涛孟成铭苏吉英
Owner SHANGHAI SUNNY