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Carbon nanotube-doped liquid crystal polymer composite material and preparation method thereof

A liquid crystal polymer and carbon nanotube technology, applied in the field of liquid crystal polymers, can solve the problem that the shape memory properties of liquid crystal polymer materials cannot meet the biomedical field, and achieve the improvement of shape memory properties, mechanical properties, and flexibility. Effect

Pending Publication Date: 2021-11-09
NINGXIA QINGYAN POLYMER MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] With the development of the biomedical field, the requirements for biomaterials are getting higher and higher. In some environments, biomaterials are required to have excellent shape memory properties, that is, when subjected to external stimuli (such as heating, electrification, magnetic field, light, pH changes) etc.) can return to the performance of the original morphology, but the shape memory properties of the existing liquid crystal polymer materials cannot meet the needs of the biomedical field

Method used

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  • Carbon nanotube-doped liquid crystal polymer composite material and preparation method thereof
  • Carbon nanotube-doped liquid crystal polymer composite material and preparation method thereof
  • Carbon nanotube-doped liquid crystal polymer composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] The mass fraction of polyvinyl terephthalate bis(p-butoxyphenyl) ester is 35%, the mass fraction of SBS elastomer is 60%, the mass fraction of carbon nanotube is 2%, the mass fraction of solubilizer The number of copies is 3%.

[0044] Grinding polyvinyl terephthalate bis(p-butoxyphenyl) into powder, mixing with SBS elastomer, dissolving with chloroform to obtain a mixed solution, and then adding carbon nanotubes and The solubilizer is dispersed by ultrasonic, and the ultrasonically mixed solution is evenly spread on a glass dish to obtain a liquid crystal polymer composite material film doped with carbon nanotubes.

Embodiment 2

[0046] The mass fraction of polyvinyl terephthalate bis(p-butoxyphenyl) ester is 40%, the mass fraction of SBS elastomer is 55%, the mass fraction of carbon nanotube is 2%, the mass fraction of solubilizer The number of copies is 3%.

[0047] Grinding polyvinyl terephthalate bis(p-butoxyphenyl) into powder, mixing with SBS elastomer, dissolving with chloroform to obtain a mixed solution, and then adding carbon nanotubes and The solubilizer is dispersed by ultrasonic, and the ultrasonically mixed solution is evenly spread on a glass dish to obtain a liquid crystal polymer composite material film doped with carbon nanotubes.

Embodiment 3

[0049] The mass fraction of polyvinyl terephthalate bis(p-butoxyphenyl) ester is 45%, the mass fraction of SBS elastomer is 50%, the mass fraction of carbon nanotube is 2%, the mass fraction of solubilizer The number of copies is 3%.

[0050] Grinding polyvinyl terephthalate bis(p-butoxyphenyl) into powder, mixing with SBS elastomer, dissolving with chloroform to obtain a mixed solution, and then adding carbon nanotubes and The solubilizer is dispersed by ultrasonic, and the ultrasonically mixed solution is evenly spread on a glass dish to obtain a liquid crystal polymer composite material film doped with carbon nanotubes.

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Abstract

The invention discloses a carbon nanotube-doped liquid crystal polymer composite material and a preparation method thereof, the carbon nanotube-doped liquid crystal polymer composite material comprises a carbon nanotube, a liquid crystal polymer, an SBS elastomer and a solubilizer, and the liquid crystal polymer is a mesogen-jacketed liquid crystal polymer. The carbon nanotube-doped liquid crystal polymer composite material prepared by the method has excellent shape memory performance and better mechanical property, and can meet the requirements of the biomedical field on the shape memory performance of the material.

Description

technical field [0001] The invention relates to the field of liquid crystal polymers, in particular to a liquid crystal polymer composite material doped with carbon nanotubes and a preparation method thereof. Background technique [0002] Liquid crystal polymer is a new type of material with anisotropic structure. Liquid crystal polymer materials have broad development prospects in chemical fields such as nonlinear optoelectronic materials, tunable diffraction gratings, thermal insulation materials and high-performance Kevlar fibers. Among them, crustacean liquid crystals Macromolecules are a type of liquid crystal polymers that are connected to the main chain of the polymer at the center of gravity (or waist) only through a covalent bond or a very short spacer. It can be divided into the following categories: vinyl hydroquinone-based shell-type liquid crystal polymers, vinyl-p-phenylenediamine-based shell-type liquid crystal polymers, vinyl-p-aminophenol-based shell-type li...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L53/02C08L25/18C08K3/04C08J5/18
CPCC08L53/02C08J5/18C08L2201/12C08J2353/02C08J2425/18C08K3/041C08L25/18
Inventor 张东宝于冉徐良
Owner NINGXIA QINGYAN POLYMER MATERIALS CO LTD