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Conductive TPU film and preparation method thereof

A conductive and thin-film technology, applied in the field of conductive TPU thin film and its preparation, can solve the problems of further improvement of conductive performance, and achieve excellent conductive and mechanical properties, high mechanical properties, and good road performance.

Active Publication Date: 2020-12-22
SUZHOU XIONGLIN NEW MATERIAL SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the elastic modulus of the TPU film prepared by the invention is 38-42MPa, the elongation at break is 550.52-628.25%, the tensile breaking stress is 58.5-65.7MPa, and the mechanical properties are good, but its electrical conductivity needs to be further improved

Method used

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  • Conductive TPU film and preparation method thereof
  • Conductive TPU film and preparation method thereof
  • Conductive TPU film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A kind of conductive TPU film of the present embodiment, by weight, comprises the following components:

[0037]

[0038]Among them, the composite conductive agent is a mixture of carboxylated single-walled carbon nanotubes and 1-naphthoic acid modified graphene doped with rare earth metals, and 1-naphthoic acid modified graphene with carboxylated single-walled carbon nanotubes and doped rare earth metal europium The mass ratio of the graphene is 5:3, and the mass percentage of the rare earth metal to the mass of the 1-naphthoic acid modified graphene doped with the rare earth metal is 4%.

[0039] Wherein, the preparation method of composite conductive agent is:

[0040] a) mix divalent rare earth metal europium ions, ethanol and 1-naphthoic acid modified graphene, and obtain 1-naphthoic acid modified graphene doped with rare earth metal after drying; The percentage of 1-naphthoic acid modified graphene mass is 4%;

[0041] b) mixing carboxylated carbon nanotubes ...

Embodiment 2

[0047] The difference between this embodiment and embodiment 1 is that the mass ratio of carboxylated single-walled carbon nanotubes to 1-naphthoic acid-modified graphene doped with rare earth metal europium is 5:1, and the others are the same as in embodiment 1. .

Embodiment 3

[0049] The difference between this embodiment and embodiment 1 is that the mass ratio of carboxylated single-walled carbon nanotubes to 1-naphthoic acid modified graphene doped with rare earth metal europium is 10:1, and the others are the same as in embodiment 1. .

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Abstract

The invention discloses a conductive TPU film and a preparation method thereof. The conductive TPU film provided by the invention comprises the following components in parts by weight: 70-90 parts ofTPU, 5-15 parts of a composite conductive agent, 1-10 parts of a dispersing agent and 1-5 parts of an antioxidant, wherein the composite conductive agent is a mixture of carboxylated carbon nanotubesand rare earth metal doped 1-naphthoic acid modified graphene. The preparation method provided by the invention is simple in process, and the prepared conductive TPU film has excellent conductivity and mechanical properties at the same time.

Description

technical field [0001] The invention relates to the technical field of TPU materials, in particular to a conductive TPU film and a preparation method thereof. Background technique [0002] TPU (Thermoplastic polyurethanes), thermoplastic polyurethane elastomer rubber, is a new type of organic polymer synthetic material, which can replace rubber or soft polyvinyl chloride materials. Its good wear resistance and resilience are better than ordinary polyurethane, and its resistance The aging performance is better than that of rubber. It can be said that TPU is the most ideal material to replace PVC and PU. It is called a new polymer material internationally. Its molecular structure is composed of rigid blocks obtained by the reaction of diisocyanates and chain extenders and soft segments obtained by the reactions of diisocyanates and macromolecular polyols. TPU has excellent high tension, high tensile strength, toughness and aging resistance, and has been widely used in medical...

Claims

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Application Information

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IPC IPC(8): C08L75/06C08L75/08C08L39/06C08K13/06C08K9/04C08K3/04C08K5/42C08K5/134C08K5/526C08K5/13C08J5/18
CPCC08J5/18C08J2375/08C08J2375/06C08J2439/06C08K13/06C08K9/04C08K3/041C08K3/042C08K5/42C08K5/1345C08K5/526C08K5/13C08K2201/001
Inventor 何建雄杨博
Owner SUZHOU XIONGLIN NEW MATERIAL SCI & TECH CO LTD
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