Nano hybrid P(VDF-TrFE)(polyvinylidene fluoride copolymer) composite film as well as preparation method and application thereof

A technology of polyvinylidene fluoride and copolymer, which is applied in the field of nano-hybrid polyvinylidene fluoride copolymer composite film and its preparation and application, can solve the problems that polyvinylidene fluoride is easily corroded by atomic oxygen, etc., and achieve performance improvement, Good compatibility and high modulus effect

Inactive Publication Date: 2018-11-16
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The present invention solves the technical problem that the existing polyvinylidene fluoride is easily corroded by atomic oxygen, and provides a nano-hybrid polyvinylidene fluoride copolymer composite film and its preparation method and application

Method used

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  • Nano hybrid P(VDF-TrFE)(polyvinylidene fluoride copolymer) composite film as well as preparation method and application thereof

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Experimental program
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Effect test

specific Embodiment approach 1

[0026] Specific Embodiment 1: In this embodiment, a nano-hybrid polyvinylidene fluoride copolymer composite film contains 92% to 98% of polyvinylidene fluoride copolymer P (VDF-TrFE) in terms of mass percent Siloxane 2-8%.

specific Embodiment approach 2

[0027] Specific embodiment 2: The difference between this embodiment and specific embodiment 1 is that the nano-hybrid polyvinylidene fluoride copolymer composite membrane contains polyvinylidene fluoride copolymer P(VDF-TrFE) 95-97% by mass percentage %, polyhedral oligomeric silsesquioxane 3-5%. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0028] Embodiment 3: This embodiment differs from Embodiment 1 or Embodiment 2 in that: the polyhedral oligomeric silsesquioxane is a polyhedral oligomeric silsesquioxane whose functional group is fluorinated propyl. Others are the same as in the first or second embodiment.

[0029] Polyhedral oligomeric silsesquioxane POSS is a class of structural formula (RSiO 1.5 ) n The cage structure, the structural formula is:

[0030] where R is - CF 3 , n=8, 10, 12..., the molecule is based on the inorganic structure Si-O-Si as the core, and the organic functional group is connected to the Si atom, which can chemically react with the resin monomer and become a part of the polymer main chain. POSS is The real chemical nanostructure has a molecular size of about 1.5nm.

[0031] POSS also has a variety of POSS along with the difference of the R group that connects the cage type silicon oxygen, what is used in the present invention is that the R group is fluorinated propyl group (flu...

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Abstract

The invention discloses a nano hybrid P(VDF-TrFE)(polyvinylidene fluoride copolymer) composite film as well as a preparation method and an application thereof and belongs to the technical field of high-compatibility, AO (atomic oxygen) scouring resistant, high-hydrophobicity and piezoelectric high-polymer hybrid composites to solve the technical problem that existing polyvinylidene fluoride is easily corroded by AO. The nano hybrid P(VDF-TrFE) composite film contains, in percentage by mass, 92%-98% of P(VDF-TrFE) and 2%-8% of polyhedral oligomeric silsesquioxane. The method comprises steps asfollows: 1) P(VDF-TrFE) and polyhedral oligomeric silsesquioxane are dissolved in an organic solvent; 2) a pre-prepared solution is prepared; 3) the pre-prepared solution is drained and poured into aculture dish, left to stand and dried. The method is simple and easy to implement, the piezoelectric property of a substrate is kept, the modulus and the hardness of an original substrate material canbe notably improved, the hydrophobic property and the AO corrosion resistance are enhanced, the properites of the composite are relatively comprehensively improved, and requirements of part of special fields can be better met.

Description

technical field [0001] The invention belongs to the technical field of high compatibility, anti-atomic oxygen scouring, high hydrophobicity and piezoelectric polymer hybrid composite materials, and specifically relates to a reinforced piezoelectric polymer polyvinylidene fluoride containing organic-inorganic nanometer functional monomer POSS Copolymer technology. Background technique [0002] The aerospace industry is a strategic industry that marks a country's national defense strength, cutting-edge technology level and comprehensive national strength. In recent years, my country's aerospace industry has developed rapidly. In order to promote the development of my country's aerospace industry in a faster and stronger direction, it is an important task for aerospace personnel to use more advanced technology to reduce the weight of spacecraft and improve the performance of spacecraft. At the same time, the introduction of intelligent structural systems into various artifici...

Claims

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Application Information

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IPC IPC(8): C08L27/16C08L83/04C08J5/18
CPCC08J5/18C08J2327/16C08J2483/04
Inventor 刘一志孙毅曾凡林
Owner HARBIN INST OF TECH
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