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Preparation method of graphene-elastic polyester in-situ polymerized compound functional fibers

An in-situ polymerization and elastic polyester technology, applied in the field of fiber materials, can solve problems such as solvent residues, and achieve the effects of improved elongation at break, good effect and good adaptability

Inactive Publication Date: 2017-08-22
NANTONG QIANGSHENG GRAPHENE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, a variety of organic solvents participated in the reaction during the preparation of polymers, and there are certain solvent residues, which limit its use in many fields

Method used

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  • Preparation method of graphene-elastic polyester in-situ polymerized compound functional fibers
  • Preparation method of graphene-elastic polyester in-situ polymerized compound functional fibers
  • Preparation method of graphene-elastic polyester in-situ polymerized compound functional fibers

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Embodiment 1～12

[0035] This example provides a method for in-situ polymerization and compounding of graphene and new polyester to obtain graphene-polyester composite chips, and then melt spinning to prepare functional fibers. The present invention adopts the in-situ polymerization and compounding process to prepare graphene-polyester composite slices and obtains graphene composite functional fibers by melt spinning, compared with the traditional compounding method in which polyester slices and graphene are directly mixed by mechanical grinding and stirring. In terms of the method, the composite method of the present invention has reached the molecular level, and has an obvious reinforcing effect on the material, and the prepared composite chips are generally applicable to almost all melt spinning platforms.

[0036] The preparation method is as follows:

[0037] Composite chip preparation method 1: the preparation scheme of the transesterification-polycondensation method of graphene / PTT (such...

Embodiment 1

[0050] Example 1, the graphene-polyester composite high elastic functional fiber obtained according to the preparation method 1 is recorded as Example 1.

Embodiment 2

[0051] Embodiment 2, the difference with embodiment 1 is: take 0.0346g graphene and add in 152g 1,3-propanediol (PDO), mix by solution, at 170~220 ℃, under inert gas protection, with 194g p-benzene Dimethyl dicarboxylate (DMT) undergoes a transesterification reaction to form the polyester oligomer trimethylene terephthalate.

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Abstract

The invention discloses a preparation method of graphene-elastic polyester in-situ polymerized compound functional fibers. The method comprises the following steps: adding graphene into a polyester polymer system in an in-situ polymerization process and compounding the graphene into a polyester matrix through polymerization; carrying out strip casting and dicing to obtain graphene-polyester in-situ polymerized compound slices; carrying out drying treatment on the graphene-polyester in-situ polymerized compound slices; then melting and spinning to obtain the graphene-elastic polyester in-situ polymerized compound functional fibers. According to the preparation method, excellent enhancing and functional properties of the graphene are utilized; the graphene is used as filling and the graphene-polyester compound slices are obtained by means of realizing compounding through polyester molecule in-situ polymerization; then melting and spinning are performed to prepare PTT (Polytrimethylene Terephthalate) and PBT (Polybutylene Terephthalate) functional fibers. According to an in-situ polymerization compounding method, the strength of PTT and PBT polyester fibers is effectively enhanced and good resilience and elongation at break are certainly improved; meanwhile, various functional properties are given to the polyester fibers.

Description

technical field [0001] The invention relates to the field of fiber materials, in particular to a method for preparing graphene-elastic polyester in-situ polymerization composite functional fibers. Background technique [0002] Graphene is a monoatomic layer film that was successfully separated from graphite by micromechanical exfoliation by physicists Andre Geim and Konstantin Novoselov of the University of Manchester in 2004. It is composed of sp2 A two-dimensional honeycomb substance composed of hybridized carbon atoms. Through research, it is found that graphene material has very outstanding mechanical properties, its Young's modulus reaches 1100GPa, and its fracture strength is 130GPa, which has broad application prospects in materials. [0003] PTT fiber is the abbreviation of polytrimethylene terephthalate fiber, and PBT fiber is the abbreviation of polybutylene terephthalate fiber. There are three methylene groups in the chain link of PTT fiber linear polymer chain,...

Claims

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Application Information

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IPC IPC(8): D01F6/92D01F1/10D01F1/09C08G63/183
CPCC08G63/183D01F1/09D01F1/103D01F1/106D01F6/92
Inventor 拜永孝沙嫣沙晓林鲁越
Owner NANTONG QIANGSHENG GRAPHENE TECH CO LTD
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