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427144

Sigma-Aldrich

Poly(vinylidene fluoride)

average Mw ~275,000 by GPC, average Mn ~107,000, pellets

Synonym(s):

PVDF

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About This Item

Linear Formula:
(CH2CF2)n
CAS Number:
MDL number:
UNSPSC Code:
12162002
PubChem Substance ID:
NACRES:
NA.23
Pricing and availability is not currently available.

vapor pressure

15 mmHg ( 32 °C)

Quality Level

form

pellets

melt index

7-20 g/10 min (230°C/12.5kg)

mol wt

average Mn ~107,000
average Mw ~275,000 by GPC

impact strength

2-4 ft-lb/in. (Izod, ASTM D 256, notched)

dielectric constant

8.0-9.5, 100 Hz (ASTM D 150)

hardness

76-80 (Shore D, ASTM D 2240)

refractive index

n20/D 1.42

ASTM D 3835

17,500-21,500 poise(230 °C) (100 sec-1)(lit.)

transition temp

brittleness temperature -62 °C (ASTM D 746)
Tm 166-170 °C (ASTM D 3418)

solubility

some polar solvents such as organic esters and amines: soluble

density

1.78 g/mL at 25 °C

SMILES string

FC(F)=C

InChI

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

InChI key

BQCIDUSAKPWEOX-UHFFFAOYSA-N

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Application

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

Features and Benefits

Crystallizes in at least 3 forms, depending on crystallization conditions. High mechanical strength,abrasion resistance and dielectric strength. Resists most chemicals, UV radiation, weathering and fungi.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Questions

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  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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