불화 폴리비닐리덴

불화 폴리비닐리덴 속성

불화 폴리비닐리덴 C화학적 특성, 용도, 생산

화학적 성질

Polyvinylidene fluoride (PVDF) is one of the most rigid and abrasion resistant of the melt-processible fluoropolymers. It has good chemical resistance, though hot sulfuric acid and hot amines can attack it. Like most fluoropolymers, PVDF is inherently flame retardant. It retains useful mechanical properties until 300 degrees F (149 degrees C).

용도

Coatings, film, filter cloth, instrument linings, filtration membranes, pump parts and linings and valves.

정의

ChEBI: A polymer composed of repeating 1,1-difluoroethyl units.

생산 방법

PVDF, the addition polymer of 1,1,difluoroethene, is prepared by high-pressure free-radical polymerization in aqueous systems. It has applications in electric and electronic devices, as weather-resistant binders for exterior architectural finishes, and in a number of areas of the chemicalprocessing industry. The lack of additives and thus the exceedingly low contamination levels make the polymer useful in ultrapure water systems, for example, where high purity is necessary for construction materials.

일반 설명

Poly(vinylidene fluoride) PVDF is a semi crystalline non-centrosymmetric polymer which exhibits piezo-, pyro- and ferroelectric properties. It is a linear polymer that shows permanent electric dipoles perpendicular to the direction of the molecular chain. These dipoles result from the difference in electronegativity between the atoms of hydrogen and fluorine with respect to carbon. Depending on the processing conditions, PVDF exhibits several different crystalline phases (α,β,γ,δ). The β phase of PVDF is the phase that exhibits the best ferroelectric and piezoelectric properties.

공업 용도

The properties are generally similar to those ofthe other fluorinated resins: relative inertness,low dielectric constant, and thermal stability(up to about 150°C). The resins (PVF2 resins)are, however, stronger and less susceptible tocreep and abrasion than TFE and CTFE resins.
Applications of polyvinylidene fluoride aremainly as electrical insulation, piping, processequipment, and as a protective coating in theform of a liquid dispersion.

불화 폴리비닐리덴 준비 용품 및 원자재

원자재

준비 용품

불화 폴리비닐리덴 공급 업체

공급자	전화	이메일	국가	제품 수	이점
Hebei Mojin Biotechnology Co., Ltd	+8613288715578	sales@hbmojin.com	China	12457	58
Hebei Yanxi Chemical Co., Ltd.	+8617531190177	peter@yan-xi.com	China	5993	58
Shaanxi Haibo Biotechnology Co., Ltd	+undefined18602966907	qinhe02@xaltbio.com	China	1000	58
Hebei Jingbo New Material Technology Co., Ltd	+8619931165850	hbjbtech@163.com	China	1000	58
Henan Fengda Chemical Co., Ltd	+86-371-86557731 +86-13613820652	info@fdachem.com	China	7613	58
Capot Chemical Co.,Ltd.	571-85586718 +8613336195806	sales@capotchem.com	China	29797	60
Henan Tianfu Chemical Co.,Ltd.	+86-0371-55170693 +86-19937530512	info@tianfuchem.com	China	21695	55
Hangzhou FandaChem Co.,Ltd.	008657128800458; +8615858145714	fandachem@gmail.com	China	9348	55
Hefei TNJ Chemical Industry Co.,Ltd.	+86-0551-65418679 +86-18949832763	info@tnjchem.com	China	2989	55
career henan chemical co	+86-0371-86658258	sales@coreychem.com	China	29914	58

불화 폴리비닐리덴 관련 검색: