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427160

Sigma-Aldrich

聚(偏二氟乙烯- co -六氟丙烯)

average Mw ~400,000, average Mn ~130,000, pellets

同義詞:

PVDF-HFP

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About This Item

線性公式:
(-CH2CF2-)x[-CF2CF(CF3)-]y
CAS號碼:
MDL號碼:
分類程式碼代碼:
12162002
PubChem物質ID:
NACRES:
NA.23
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形狀

pellets

品質等級

熔體指數

3.5-7.5 g/10 min (230°C/12.5kg)

分子量

average Mn ~130,000
average Mw ~400,000

衝擊強度

12-20 ft-lb/in. (Izod, ASTM D 256, notched)

介電常數

9.4-10.6, 100 Hz (ASTM D 150)

硬度

65-70 (Shore D, ASTM D 2240)

折射率

n20/D 1.41

黏度

23,000-27,000 poise(230 °C) (100 sec-1; typical)(lit.)

轉變溫度

brittleness temperature -62 °C (ASTM 2800)
Tm 140-145 °C (ASTM D 3418)

密度

1.77 g/mL at 25 °C

SMILES 字串

FC(F)=C.FC(F)=C(F)C(F)(F)F

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一般說明

聚(偏二氟乙烯- co -六氟丙烯)(PVDF-HFP)是一种疏水性结晶聚合物,具有良好的特性,如良好的热稳定性、高极性、离子电导性和良好的耐溶剂性。

應用

由于其高极性、有机溶剂润湿性和较高的离子电导性,PVDF-HFP被广泛用作聚合物基质,用于合成能量储存应用中的凝胶聚合物电解质。例如,它可用于改善柔性固态超级电容器的性能。

它可用于制备超疏水聚合物纳米复合材料。例如,PVDF-HFP- SiO2复合材料可用于改善区域规则性聚3-己基噻吩(P3HT)的热变色现象。

它也可用于制备纳米发电机中的无铅压电柔性聚合物复合材料。PVDF-HFP优于其它聚合物基质,因为它溶解性高、自由体积更大、机械强度更好。
电线电缆涂料、耐腐蚀软管以及管道和罐槽的内衬。

特點和優勢

绝佳的热稳定性、耐化学性和耐磨性,抗紫外线降解,自熄性材料,并且老化时可保持各种特性。温度在零下时具有改善的柔韧性、耐应力开裂性,并且断裂伸长超过聚(偏二氟乙烯)。

外觀

晶体,热塑性共聚物。

儲存類別代碼

11 - Combustible Solids

水污染物質分類(WGK)

WGK 2

閃點(°F)

Not applicable

閃點(°C)

Not applicable

個人防護裝備

Eyeshields, Gloves, type N95 (US)


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分析證明 (COA)

Lot/Batch Number

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Questions

1–2 of 2 Questions  
  1. 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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  2. 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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