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基本描述
| 规格或纯度 | 平均Mw~534000（按GPC计算），粉末 |
|---|---|
| 英文名称 | Poly(vinylidene fluoride) |
| 产品介绍 |
一般描述 聚偏氟乙烯(PVDF)是一种具有压电、热电、铁电性质的半晶非中心对称聚合物。它是一种线性聚合物，表现出垂直于分子链方向的永久性电偶极子。这些偶极子是由于氢和氟原子对碳的电负性不同而产生的。根据工艺条件，PVDF呈现出不同的结晶相(α,β,γ,δ)。PVDF的β相表现出最佳的铁电和压电性能。 应用 聚偏氟乙烯(PVDF)用于纳米孔电极。它可用于合成嵌有碳纳米管的PVDF超细纤维复合材料。此外，它还可用于传感器、驱动器、储能、血压计、压力传感器、纳米发电机、锂离子电池等。此外，它还可作为聚偏氟乙烯-纳米粘土纳米复合材料和聚偏氟乙烯-丙烯酸橡胶/粘土纳米复合材料的基质。 General Description 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. Application Poly(vinylidene fluoride) (PVDF) is used in nanoporous electrodes. It is used to synthesize composites comprising of ultrafine fibers of PVDF embedded with carbon nanotubes. It can be used in sensors, actuators, for energy storage, sphygmomanometers, pressure sensors and nanogenerators, lithium ion batteries. Additionally, it may find application as matrix for PVDF-nanoclay nanocomposites and PVDF acrylic rubber/clay nanocomposite hybrid. |
名称和标识符
| IUPAC Name | 1,1-difluoroethene |
|---|---|
| INCHI | InChI=1S/C2H2F2/c1-2(3)4/h1H2 |
| InChi Key | BQCIDUSAKPWEOX-UHFFFAOYSA-N |
| Canonical SMILES | C=C(F)F |
| PubChem CID | 6369 |
化学和物理性质
| 密度 | 1.74g/mLat 25°C |
|---|---|
| 熔点 | 173 °C |
产品问答
产品问答
参考文献
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