![Poly[4,5-difluoro-2,2-bis(trifluoromethyl)-1,3-dioxole-co-tetrafluoroethylene] dioxole 87 mol %](/deepweb/assets/sigmaaldrich/product/structures/951/320/21327fcd-4960-402d-8ae1-bf2e379cb2e2/640/21327fcd-4960-402d-8ae1-bf2e379cb2e2.png)
The viscosity of this material is not tested on a lot-to-lot basis. However, historical data indicates a viscosity of approximately 20 cP at 25°C.
665800
Polytetrafluoroethylene preparation
Polytetrafluoroethylene preparation
60 wt % dispersion in H2O
Synonym(s):
PTFE dispersion
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About This Item
Linear Formula:
(CF2CF2)n
CAS Number:
MDL number:
UNSPSC Code:
12162002
PubChem Substance ID:
NACRES:
NA.23
Pricing and availability is not currently available.
Recommended Products
Quality Level
concentration
60 wt % dispersion in H2O
SMILES string
FC(=C(F)F)F
InChI
1S/C2F4/c3-1(4)2(5)6
InChI key
BFKJFAAPBSQJPD-UHFFFAOYSA-N
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General description
PTFE is a synthetic fluropolymer of tetrafluoroethylene. It is a fluorocarbon solid, as it is a high molecular weight compound consisting wholly of carbon and fluorine. PTFE is hydrophobic in nature, it also has the lowest coefficient of friction against any solid.
Application
Owing to its chemical inertness and hydrophobicity, PTFE is widely used in surgical meshes, stents, grafts, and scaffolds for ligament repair. For example, expanded PTFE can be used to prepare vascular grafts.
The invariance of the dielectric constant over a wide frequency range and the high dielectric strength of PTFE makes it a suitable material for cable insulation and high-temperature energy storage application.
It can also be employed as an easy-cleaning, chemically inert, and non-stick coating in food, chemical and pharmaceutical industries.
The invariance of the dielectric constant over a wide frequency range and the high dielectric strength of PTFE makes it a suitable material for cable insulation and high-temperature energy storage application.
It can also be employed as an easy-cleaning, chemically inert, and non-stick coating in food, chemical and pharmaceutical industries.
Features and Benefits
- High chemical resistivity
- Low coefficient of friction
- Flexibility
- High thermal stability
Signal Word
Danger
Hazard Statements
Precautionary Statements
Hazard Classifications
Eye Dam. 1
Storage Class Code
10 - Combustible liquids
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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What is the viscosity of the dispersion?
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How is shipping temperature determined? And how is it related to the product storage temperature?
1 answer-
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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How can I determine the shelf life / expiration / retest date of this product?
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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.pdfHelpful?
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Hi, Can you tell me if this product is AD 309 E PTFE dispersion from AGC?
1 answer-
Unfortunately, the supplier information is considered proprietary. The measured properties are published in the product Certificate of Analysis. Please see the link below to review a sample or lot-specific Certificate:
https://www.sigmaaldrich.com/product/aldrich/665800#product-documentationHelpful?
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What is the boiling point of the product?
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This product is a 60% dispersion of PTFE in water. The boiling point has not been determined. The PTFE particles may settle at temperatures greater than 66°C, but can be redispersed by mild agitation. The melting peak temperature for these particles is 337°C.
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What is the molecular weight of the polymer?
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Unfortunately, the molecular weight of this product is not determined.
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What are the recommended processing conditions for 665800-100ML?
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The product 665800 PTFE dispersion retains its properties after exposure to 260 °C (500 °F). Processing guidelines entail using conventional dip or flow techniques for coating or impregnating high-temperature fabrics, fibers, and other products. Multiple passes can be used to achieve the desired thickness for a smooth, crack-free coating. Each coating layer is typically dried at 120 °C (250 °F) to remove water, baked at 270 °C (518 °F) to eliminate the wetting agent, sometimes calendered, and finally heated above the crystalline melting point of the resin particles, which is approximately 337 °C (639 °F).
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what is the curing temperature? if it used to make thin film for detect oxygen concentration of aqueous
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665800 is PTFE dispersion in water. The curing temperature depends on its further applications. Generally, 80-100 °C should be good. Unfortunately, it hasn't been tested for the application of oxygen concentration detection.
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If we store PTFE at a temperature of approximately 32 degrees Celsius for 8 days, will it cause any problems with the dispersion, such as the formation of irreversible processes or render it unusable?
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Unfortunately, the thermal stability of 665800 hasn't been tested. There is no indication that any irreversible processes will happen to 665800 at 32 °C for 8 days, but it is still recommended to inspect the product afterwards to ensure the performance as expected.
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SIR I HAVE A DOUBT REGARDING THE PRODUCT NAME. I WANT PTFE SOLUTION(LIQUID FORM), BUT IN THE PRODUCT NAME IT IS GIVEN AS 'PTFE PREPARATION'. THAT WORD /PREPARATION' WHAT DOES IT MEAN.
1 answer-
As shown in the synonym, Product 665800 is PTFE dispersion. The word 'preparation' here does not have any specific meaning.
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