Perfluor dioxole-modified fluorine-containing polymer

A dioxole, polymer technology, applied in offensive equipment, explosives, non-explosive/non-thermal agent components, etc., can solve the problems of limited application, inability to meet military industry, low glass transition temperature, etc.
CN104448097AInactive Publication Date: 2015-03-25ZHONGHAO CHENGUANG RES INST OF CHEMICALINDUSTRY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ZHONGHAO CHENGUANG RES INST OF CHEMICALINDUSTRY CO LTD
Publication Date
2015-03-25
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention belongs to the field of organic chemistry and relates to a perfluor dioxole-modified fluorine-containing polymer. A general formula of the perfluor dioxole is as shown in the specification, wherein R and F represent RF or ORF; RF is C1-C5 linear or branched perfluoroalkyl; X1 and X2 are independently used as F or CF3; and a fluorine-containing olefin monomer accounts for 80-99.1% of mass of a copolymerized monomer. According to the polymer disclosed by the invention, the glass-transition temperature is greater than 65 DEG C; the particle size is smaller than 120mum; the intrinsic viscosity is greater than 1.0dl / g; the polymer can be completely dissolved into common esters and other strong polar solvents; the problems that the glass-transition temperature of F23 fluorine polymers at present is relatively low and the like are solved; and the polymer can be widely applied to the military industry, and can be used as a binder for a polymer-bonded explosive and a binder for current collector metal for cells.
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Description

technical field

[0001] The invention belongs to the field of organic polymer compounds, and in particular relates to a vinylidene fluoride copolymer and a preparation method thereof. Background technique

[0002] Fluoropolymers have many excellent properties that hydrocarbon polymers do not have, such as low surface tension and friction coefficient, excellent heat resistance, oxidation resistance, and chemical resistance. Polyvinylidene fluoride chlorotrifluoroethylene (P(VDF-CTFE)) is a kind of fluoropolymer. P(VDF-CTFE) with low CTFE content has high dipole density and energy density, and the formed film has a very fast discharge rate and low loss, which makes the application of P(VDF-CTFE) more realistic significance. P(VDF-CTFE) with high CTFE content is mainly used as a binder for polymer bonded explosives and a binder for battery collector metals, and is widely used in military, national defense, and aerospace system industries.

[0003] Fluorine rubber VDF-CTFE (l:...

Claims

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