Nano-diamond alkene-containing polypropylene composite material and preparation method

A nanodiamondene and composite material technology is applied in the field of polypropylene composite materials containing nanodiamondene and its preparation. performance, increase heat conduction and heat dissipation, and reduce the effect of stacking pores

Inactive Publication Date: 2017-06-20
ZHENGZHOU ARTIFICIAL DIAMOND & PROD ENG TECH RES CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Generally, nanoparticles are easy to agglomerate and not easy to disperse. When they are added to polymers, they are easy to form agglomerates in the matrix, which affects the mechanical properties of their composite materials and increases the difficulty of subsequent processing of their materials. At the same time, nanoparticles Agglomeration in the matrix is ​​also easy to cause uneven heat dissipation of the material, which will cause excessive thermal stress caused by uneven thermal expansion

Method used

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  • Nano-diamond alkene-containing polypropylene composite material and preparation method
  • Nano-diamond alkene-containing polypropylene composite material and preparation method
  • Nano-diamond alkene-containing polypropylene composite material and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A polypropylene composite material containing nanodiamondene is composed of the following parts by weight: 100 parts of polypropylene resin, 2 parts of nanodiamondene, 0.5 parts of antioxidant 168, 0.1 parts of antioxidant 1010, and 1 part of talc.

[0036] The melt flow rate of the polypropylene resin is 2-8 g / min; the nanodiamondene is composed of three nanodiamondenes with different particle sizes of 50nm, 75nm, and 100nm, and the mass ratio of the three is 2:4:1.

[0037] The nanodiamondene is sequentially activated and modified with a coupling agent:

[0038] Among them, the activation steps are:

[0039] ①Ultrasonic alkaline cleaning: Pour nanodiamondene into a 10% sodium hydroxide solution, and perform ultrasonic cleaning with an ultrasonic frequency of 35 KHz. The temperature of the solution is controlled between 50°C, the stirring speed is 35rpm, and the ultrasonic cleaning time Is 30min;

[0040] ②Ultrasonic cleaning: Put the diamondene treated in step ① into a deioniz...

Embodiment 2

[0053] A polypropylene composite material containing nanodiamondene is composed of the following parts by weight: 100 parts of polypropylene resin, 8 parts of nanodiamondene, 1681 part of antioxidant, 1010 1 part of antioxidant, and 5 parts of talc.

[0054] The melt flow rate of the polypropylene resin is 8 g / min; the nanodiamondene is composed of three nanodiamondenes with different particle sizes of 50nm, 75nm, and 100nm, and the mass ratio of the three is 3:5:2.

[0055] The nanodiamondene is sequentially activated and modified with a coupling agent:

[0056] Among them, the activation steps are:

[0057] ①Ultrasonic alkali cleaning: pour nanodiamondene into a sodium hydroxide solution with a concentration of 12%, and perform ultrasonic cleaning at an ultrasonic frequency of 45 KHz. The temperature of the solution is controlled between 60°C, the stirring speed is 40 rpm, and the ultrasonic cleaning time 20min;

[0058] ②Ultrasonic cleaning: Put the diamondene treated in step ① into...

Embodiment 3

[0071] A polypropylene composite material containing nanodiamondene is composed of the following parts by weight: 100 parts of polypropylene resin, 8 parts of nanodiamondene, 168 0.8 parts of antioxidant, 0.5 part of antioxidant 1010, and 10 parts of talc.

[0072] The melt flow rate of the polypropylene resin is 2-8 g / min; the nanodiamondene is composed of three nanodiamondenes with different particle sizes of 50nm, 75nm and 100nm, and the mass ratio of the three is 3:4:1.

[0073] The nanodiamondene is sequentially subjected to activation and coupling agent modification treatments. The activation and coupling agent modification steps are the same as in Example 1. The difference is that in the coupling agent modification, the mass of the titanate coupling agent TMC-TTS is nanometer 10% of the quality of diamondene. .

[0074] The preparation method of the polypropylene composite material containing nanodiamondene is the same as in Example 1.

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Abstract

The invention discloses a nano-diamond alkene-containing polypropylene composite material. The nano-diamond alkene-containing polypropylene composite material is prepared from the following substances in parts by weight: 100 parts of polypropylene resin, 2 to 8 parts of nano-diamond alkene, 0.5 to 1 part of antioxidant 168, 0.1 to 1 part of antioxidant 1010 and 1 to 10 parts of talcum powder. The invention also discloses a preparation method of the nano-diamond alkene-containing polypropylene composite material. The preparation method is simple in process and easy to operate. The nano-diamond alkene is taken as a polypropylene heat conducting material, a heat conductivity coefficient of polypropylene can be greatly improved, heat conduction and heat radiation capabilities are improved, and the heat conductivity coefficient is improved by 14 times; and meanwhile, the nano-diamond alkenes with different grain sizes are mixed to fill, the stacking density of the filler can be improved, stacking pores are reduced, highest-degree filling of the filler is realized, and a positive function for improving the heat conduction capability of the polypropylene is realized.

Description

Technical field [0001] The invention belongs to the technical field of polypropylene nanocomposite materials, and specifically relates to a polypropylene composite material containing nanodiamondene and a preparation method. Background technique [0002] Thermal conductive materials are widely used in heat conduction engineering, heating engineering, electronics and information engineering. Due to their excellent thermal conductivity, metal materials are widely used in non-insulating fields, but metal products are not corrosion-resistant, have heavier quality and higher processing costs. Compared with metal materials, macromolecular polymers have the advantages of lighter weight, easy processing and forming, chemical corrosion resistance, and high electrical resistivity. In recent years, thermally conductive polymer composite materials have become the focus of research. At present, thermally conductive polymer composite materials are mainly used in thermally conductive circuit b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08K13/06C08K9/00C08K9/02C08K9/04C08K3/04C08K5/526C08K5/134C08K3/34C09K5/14
CPCC08K3/04C08K3/34C08K5/1345C08K5/526C08K9/00C08K9/02C08K9/04C08K13/06C08K2201/011C09K5/14C08L23/12
Inventor 郭留希赵清国杨晋中李盟武艳强尹维召王聪文炯
Owner ZHENGZHOU ARTIFICIAL DIAMOND & PROD ENG TECH RES CENT
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