Preparation method for graphene oxide modified polypropylene fiber

A graphene modification, polypropylene fiber technology, applied in fiber chemical characteristics, melt spinning, rayon manufacturing and other directions, can solve problems such as poor dispersion of graphene oxide, achieve easy mass production, thermal stability and the effect of improved tensile properties and simple production steps

Inactive Publication Date: 2016-12-07
QINGDAO UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies of the current technology and the poor dispersion of graphene oxide in polypropylene, the invention provides a preparation method of graphene oxide modified polypropylene fiber

Method used

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  • Preparation method for graphene oxide modified polypropylene fiber
  • Preparation method for graphene oxide modified polypropylene fiber
  • Preparation method for graphene oxide modified polypropylene fiber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The transmission electron micrograph of the sample prepared in Example 1 is obtained by the JEOL2011 projection electron microscope detection of JEOL Company of Japan; the scanning electron microscope is obtained by the JSM-6390LV scanning electron microscope detection of JEOL Company of Japan; The test was obtained by the Q50 thermal weight loss instrument; the tensile performance test was obtained by the WDW-20 microcomputer-controlled electronic universal testing machine of Jinan Yinuo Century Experimental Instrument Co., Ltd.

[0027] Example 1

[0028] A preparation method for graphene oxide modified polypropylene fiber, the steps are as follows:

[0029] (1) Dissolve 50 mg of graphene oxide in 100 ml of absolute ethanol under a power of 90 W to prepare a graphene oxide solution.

[0030] (2) Add 5 g of polypropylene into 80 g of xylene, heat and dissolve in a three-necked flask at a stirring rate of 800 r / min at a temperature of 125° C., and prepare a polypropyle...

Embodiment 2

[0034] (1) Graphene oxide is added to ethanol solution, and ultrasonically dissolved to obtain a graphene oxide solution with a concentration of 1.0 mg / mL; the ultrasonic power is 75W, and the ultrasonic time is 0.8h;

[0035] (2) Add polypropylene to xylene at a mass ratio of 1:20, raise the temperature to 115°C; polypropylene is completely dissolved in xylene;

[0036] (3) Slowly add the graphene oxide solution into the polypropylene solution, and mechanically stir at 160°C for 0.5h; place the mixture in an air atmosphere at 45°C and dry for 24h to obtain a graphene oxide-modified polypropylene composite material, The obtained graphene oxide-modified polypropylene composite material is melt-spun to obtain graphene oxide-modified polypropylene fibers.

[0037] The stirring rate described in the step (2)(3) is 600r / min.

Embodiment 3

[0039] (1) Graphene oxide is added to ethanol solution, and ultrasonically dissolved to obtain a graphene oxide solution with a concentration of 0.2mg / mL; the ultrasonic power is 100W, and the ultrasonic time is 0.6h;

[0040] (2) Add polypropylene to xylene at a mass ratio of 1:15, raise the temperature to 135°C; polypropylene is completely dissolved in xylene;

[0041] (3) Slowly add the graphene oxide solution into the polypropylene solution, and mechanically stir at 130°C for 0.5h; place the mixture in an air atmosphere at 55°C and dry for 36h to obtain a graphene oxide-modified polypropylene composite material, The obtained graphene oxide-modified polypropylene composite material is melt-spun to obtain graphene oxide-modified polypropylene fibers.

[0042] The stirring rate described in the step (2) (3) is 1000r / min.

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Abstract

The invention discloses a preparation method for a graphene oxide modified polypropylene fiber. The invention aims to solve the problem that graphene oxide is difficult to disperse in polypropylene group. According to the method provided by the invention, xylene and ethyl alcohol are taken as solvents for effectively dispersing graphene oxide in polypropylene and graphene oxide exists in the polypropylene material in a multilayer form. A compound material acquired by mixing is prepared into a compound material master batch through a pelletizer. The polypropylene fibers are spun through a melt spinning machine. The thermal stability and tensile property of the prepared graphene oxide modified polypropylene fiber are greatly increased. The method has the advantages of easy operation and simple technique.

Description

technical field [0001] The invention relates to a preparation method of graphene oxide modified polypropylene fiber, which belongs to the technical field of polypropylene-based composite fiber. Background technique [0002] Due to the unique structure of graphene and its derivatives, it has excellent properties in electricity, mechanics, and heat. More and more people are working on the application of graphene in composite materials. Compared with graphene, graphite oxide Alkenes have better conditions for compounding with polymer materials. Usually graphene will be used as the reinforcing phase and functional phase of composite materials. The introduction of graphene oxide into composite materials can not only improve its original properties, but also lead to unique properties and applications of composite materials. Carbon nanotubes in the carbon system are often used to improve the mechanical properties of composite materials. In contrast, graphene oxide not only has ex...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F6/46D01F1/10D01D5/08
CPCD01D5/08D01F1/10D01F6/46
Inventor 黄林军王彦欣唐建国侯永超王瑶刘继宪
Owner QINGDAO UNIV
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