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Preparation method of graphene-polyester nano-composite fiber

A nano-composite fiber, graphene technology, applied in fiber processing, conductive/antistatic filament manufacturing, single-component polyester rayon, etc., can solve practical limitations, low efficiency, low polyester monofilament strength, etc. problems, to achieve the effect of improving production efficiency and volume, reducing capital investment, and improving breaking strength

Active Publication Date: 2015-12-30
NANTONG QIANGSHENG GRAPHENE TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Liu Shanhe of Anhui Guoxing Biochemical Co., Ltd. invented a PET composite material containing attapulgite (Chinese invention patent CN103756265A), but the disadvantage of this method is that it is difficult to completely and evenly disperse the attapulgite Into the PET matrix, the performance and subsequent use of PET composites are greatly limited
Yu Tianshi of Jiangnan University and others invented an antistatic nano-titanium dioxide composite polyester monofilament (Chinese invention patent CN104278350A), but this method has low efficiency and is not suitable for large-scale production, and the prepared polyester monofilament has low strength and limited practicability
Therefore, the current methods for preparing polyester nanocomposite fibers are mostly concentrated in the stage of basic research and small-scale exploration. The overall performance of nanocomposite fibers is not high, and they do not have the prospect of industrial production and practical application value.

Method used

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  • Preparation method of graphene-polyester nano-composite fiber
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  • Preparation method of graphene-polyester nano-composite fiber

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Embodiment 1

[0045] The present embodiment provides a kind of preparation method of graphene-polyester nanocomposite fiber, comprises the following steps: the preparation step of graphene-polyester polyester composite masterbatch and the preparation step of described composite masterbatch into graphene-polyester nanocomposite fiber step;

[0046] Step 1, the preparation steps of graphene-polyester polyester composite masterbatch (see figure 1 ) comprising: mixing polyester polyester chips with graphene (the mass ratio of the two is 100:0.1) at high speed, twin-screw extruding, and granulating to obtain:

[0047] Wherein, the type of the graphene is selected from graphene oxide exfoliated by chemical oxidation, and then organically modified and modified by hexadecane bromide;

[0048] The polyester polyester chip needs to be dried before use; the moisture content in the dried polyester polyester chip is below 50ppm;

[0049] In the implementation of the above steps, the polyester polyest...

Embodiment 2

[0056] This embodiment is a modification of Embodiment 1, and also provides a method for preparing graphene-polyester nanocomposite fibers, the only difference being that the type of graphene is selected from reduced graphene oxide that expands at low temperature.

Embodiment 3

[0058] This embodiment is a modification of Embodiment 1, and also provides a method for preparing graphene-polyester nanocomposite fibers. The only change is that the ratio of the mass of polyester polyester chips to graphene during the preparation of the composite masterbatch The ratio is 100:20; the high-speed mixing method is 25000 rpm stirring for 0.5 min. Then the composite masterbatch is mixed with pure polyester polyester chips and then spun, so that the content of graphene in the final graphene-polyester nanocomposite fiber is completely consistent with that of Example 1.

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Abstract

The invention discloses a preparation method of graphene-polyester nano-composite fiber. The preparation method comprises the step of preparing graphene-terylene polyester composite master batch and the step of preparing the graphene-polyester nano-composite fiber from the composite master batch. Compared with other conventional methods, the preparation method has the advantages that the technology is extremely simple, the reinforcing material is excellent in performance and low in cost; besides, excellent mechanical property and functional characteristics of graphene self endow the nano-composite fiber with functionalities like high strength and antistatic property, surface-modified and modified graphene has good dispersity and perfect interfacial compatibility in terylene polyester polymer matrix, which enables graphene to be effectively and uniformly compounded with a terylene polyester chip base material.

Description

technical field [0001] The invention relates to a preparation method of graphene-polyester nano composite fiber. Background technique [0002] Graphene is the thinnest two-dimensional nanomaterial known so far. Its crystal lattice is a hexagon surrounded by six carbon atoms, with a thickness of one atomic layer. The carbon atoms are connected by s bonds, and the bonding method is sp 2 Hybridization, these s bonds endow graphene with extremely excellent mechanical properties and structural rigidity, and the strength of graphene is 100 times stronger than the best steel. Graphene has high conductivity and is the material with the smallest resistivity in the world; graphene is also a very good antibacterial material. Based on the mechanical properties of graphene, graphene can be added to the polymer matrix, which can improve the mechanical properties of the material, such as tensile strength, modulus, hardness, etc.; based on the excellent electrical properties of graphene, i...

Claims

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Application Information

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IPC IPC(8): D01F6/62D01F1/09D01D5/088B29C47/92B29C48/92
CPCD01F6/62B29C48/92D01D5/088D01F1/09
Inventor 拜永孝沙晓林沙嫣颜晓捷
Owner NANTONG QIANGSHENG GRAPHENE TECH CO LTD
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