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Carbon nanotube-titanium dioxide filling modified wear-resistant anti-ageing type composition material and preparation method thereof

A titanium dioxide and carbon nanotube technology, applied in the field of composite materials, can solve the problems of low notch impact strength, large molding shrinkage, easy to produce cracks, etc., to improve mechanical properties, delay material aging, improve thermal stability and heat resistance. sexual effect

Inactive Publication Date: 2018-03-23
ANHUI HONGSHI OPTOELECTRONICS HIGH TECH CO LTD
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

Polypropylene has a regular structure and is easy to crystallize, and the resulting spherulites are large, making it prone to cracks. At the same time, polypropylene also has the problems of large molding shrinkage, high brittleness, and low notched impact strength, which greatly limits further applications.

Method used

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Examples

Experimental program
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Effect test

Embodiment

[0019] A method for preparing a carbon nanotube-titanium dioxide filled and modified wear-resistant and anti-aging composite material, characterized in that the steps are as follows:

[0020] a. Dry 6kg of titanium dioxide powder in an electric blast drying oven at 80-90°C for 3 hours, put it in a high-speed mixer at 60-70°C and stir it for 35 minutes, mix 0.2kg of coupling agent and acetone at a ratio of 1:3 and divide Spray on the powder several times and modify it for 15 minutes;

[0021] b. Add aqua regia to 2kg of carbon nanotubes at a ratio of 1:15, heat in an oil bath to 45-55°C, reflux with low-speed electromagnetic stirring for 1 hour, add an equal volume of distilled water to dilute after cooling, then cool, filter under reduced pressure, and wash with water until neutral. Dry in an oven at 110-120°C to obtain oxidized carbon nanotubes;

[0022] c. Coupling modification process of filler powder:

[0023] Dry 9kg of microcrystalline muscovite powder and 8kg of nano ...

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PUM

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Abstract

The invention discloses a carbon nanotube-titanium dioxide filling modified wear-resistant anti-ageing type composition material. The carbon nanotube-titanium dioxide filling modified wear-resistant anti-ageing type composition material is characterized by being prepared by the following steps: drying titanium dioxide powder, putting the dried powder into a high-speed mixing machine to stir uniformly, mixing a coupling agent and acetone, spraying the mixture on the powder for many times and performing modification treatment; adding aqua regia into a carbon nantotube, heating by oil bath, electromagnetically stirring at low speed and refluxing, cooling, adding distilled water with the same volume to dilute, filtering under reduced pressure and drying to obtain an oxidized carbon nano-tube;drying microcrystalline white mica powder and nano-silicon dioxide; mixing distilled water and absolute ethanol to obtain a diluent; mixing KH550 and the diluent to obtain a modifier; putting the dried powder and the modifier into a high-speed mixing machine, and mixing and modifying to obtain modified powder; and uniformly mixing polypropylene resin, PA6, maleic anhydride grated polyethylene andthe obtained materials, mixing on a double-roller mixing machine, performing extruding and mixing on an extruding machine, and performing preheating and hot-pressing forming on a plate vulcanizing machine to obtain the composite material.

Description

technical field [0001] The invention relates to the field of composite materials, in particular to a method for preparing a carbon nanotube-titanium dioxide filled and modified wear-resistant and anti-aging composite material. Background technique [0002] As a widely used general-purpose plastic, polypropylene has abundant sources of raw materials and low price. Compared with other general-purpose plastics, polypropylene has better comprehensive properties. Polypropylene has a regular structure and is easy to crystallize, and the resulting spherulites are large, making it prone to cracks. At the same time, polypropylene also has the problems of large molding shrinkage, high brittleness, and low notched impact strength, which greatly limits further applications. Therefore, it is particularly important to toughen and strengthen polypropylene. Contents of the invention [0003] The technical problem mainly solved by the invention is to provide a method for preparing a c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L77/02C08L51/06C08K13/06C08K9/06C08K9/04C08K3/22C08K7/24C08K7/10C08K3/36
Inventor 徐道际张建波张成文邓书醒肖杰
Owner ANHUI HONGSHI OPTOELECTRONICS HIGH TECH CO LTD
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