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182702

Sigma-Aldrich

聚偏二氟乙烯

average Mw ~534,000 by GPC, powder

别名:

PVDF

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About This Item

线性分子式:
(CH2CF2)n
CAS号:
24937-79-9
MDL编号:
MFCD00084470
UNSPSC代码:
12162002
PubChem化学物质编号:
24851010
NACRES:
NA.23
价格与库存信息目前不能提供

蒸汽压

15 mmHg ( 32 °C)

表单

powder

分子量

average Mw ~534,000 by GPC

折射率

n20/D 1.42

转变温度

Tg −38 °C
Tm 171 °C

密度

1.74 g/mL at 25 °C

SMILES字符串

FC(F)=C

InChI

1S/C2H2F2/c1-2(3)4/h1H2

InChI key

BQCIDUSAKPWEOX-UHFFFAOYSA-N

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相关类别

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。[1][2][3][4]

应用

聚偏氟乙烯(PVDF)用于纳米孔电极。[5]它可用于合成嵌有碳纳米管的PVDF超细纤维复合材料。[2]此外，它还可用于传感器、驱动器、储能、[1]血压计、压力传感器、纳米发电机、[4]锂离子电池等。[6]此外，它还可作为聚偏氟乙烯-纳米粘土纳米复合材料[7]和聚偏氟乙烯-丙烯酸橡胶/粘土纳米复合材料的基质。[8]

储存分类代码

11 - Combustible Solids

WGK

WGK 3

闪点(°F)

Not applicable

闪点(°C)

Not applicable

个人防护装备

Eyeshields, Gloves, type N95 (US)

历史批次信息供参考:

分析证书(COA)

Lot/Batch Number
0000347337
0000347337
0000419528
0000419528
0000412314

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Slide 1 of 3

1 of 3

Polyvinylidenefluoride (PVDF), film, thickness 0.0045 mm, size 150 × 150 mm, condition biaxially oriented

GF43004854

Polyvinylidenefluoride

1-甲基-2-吡咯烷酮 anhydrous, 99.5%

Sigma-Aldrich

328634

1-甲基-2-吡咯烷酮

Polyvinylidenefluoride (PVDF), granule, 5 mm nominal granule size, weight 1000 g, condition additive free polymer

GF70021886

Polyvinylidenefluoride

Thermal-to-electric energy conversion of a nanoporous carbon
Yu Q, et al
Journal of Power Sources, 183(1), 403-405 (2008)
Shu-Hua Wang et al.
Nanoscale research letters, 9(1), 522-522 (2014-10-08)
Poly(vinylidene fluoride) (PVDF) ultrafine fibers with different proportions of multi-walled carbon nanotube (MWCNT) embedded have been fabricated using a modified electrospinning device with a rotating collector. With the increasing of MWCNT content, the β phase was noticeable enhanced, and the
Hot Plate Annealing at a Low Temperature of a Thin Ferroelectric P(VDF-TrFE) Film with an Improved Crystalline Structure for Sensors and Actuators.
Sensors (Basel, Switzerland), 14(10), 19115-19127 null
Mohammad Mahdi Abolhasani et al.
PloS one, 9(2), e88715-e88715 (2014-02-20)
In this paper, intercalation of nanoclay in the miscible polymer blend of poly(vinylidene fluoride) (PVDF) and acrylic rubber(ACM) was studied. X-ray diffraction was used to investigate the formation of nanoscale polymer blend/clay hybrid. Infrared spectroscopy and X-ray analysis revealed the
Wenzhong Ma et al.
Membranes, 4(2), 243-256 (2014-06-25)
The crystallization behaviors of two copolymers of PVDF were studied, and the effect of copolymerized chains on the crystallization behavior was investigated. The results indicated that both copolymers had a lowered crystallization temperature and crystallinity. The crystallization rate was improved
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Questions

1–9 of 9 Questions  

  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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  3. Can I coat it on top of my sensor as a layer to sense CO2?

    1 answer

    1. Yes, this product can be dispersed in organic solvents, such as 1-Methyl-2-pyrrolidinone (NMP), to form a slurry for coating. However, there is no test on its performance for CO2 sensing.

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  4. is the purity of this product >99%?

    1 answer

    1. The purity of this product is not determined.

      Helpful?

  5. What is the particle size of the PVDF powder?

    1 answer

    1. The particle size of this material is approximately 5 um.

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  6. Enquiry on chemical compatibility of PVDF with TMAH 25%.

    1 answer

    1. PVDF is not compatible with basic solutions such as those prepared using ammonium hydroxide, sodium hydroxide or tetramethylammonium hydroxide.

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  7. Is this material available for nanofibers fabrication to be integrated in textile application And what about its piezoelectric properties?

    1 answer

    1. This product has not been tested for the suitability for piezoelectric material. However, it may be helpful to review the literature below:

      https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7825031/
      https://www.sciencedirect.com/science/article/pii/S0266353817313751

      Helpful?

  8. We need piezoelecteic beta phase pvdf .. Is it available? If not can we know which phase pvdf is available alpha, beta, gamma etc??

    1 answer

    1. Unfortunately, the phase is not determined for the PVDF products currently offered.

      Helpful?

  9. Is this sample modified Poly(Vinylidene Fluoride)(PVDF) or pure homopolymer PVDF?

    1 answer

    1. Poly(Vinylidene Fluoride)(PVDF) sample is a pure homopolymer of Vinylidene Fluoride.

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