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429015

Sigma-Aldrich

Polyethylene

Ultra-high molecular weight, average Mw 3,000,000-6,000,000

Sinónimos:

PE

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250 G
US$ 68,80
1 KG
US$ 190,00

US$ 68,80

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250 G
US$ 68,80
1 KG
US$ 190,00

About This Item

Fórmula lineal:
H(CH2CH2)nH
Número de CAS:
9002-88-4
Número MDL:
MFCD00084423
Código UNSPSC:
12162002
ID de la sustancia en PubChem:
24866830
NACRES:
NA.23

US$ 68,80

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descripción

coefficient of friction: 0.20 - 0.25

(Cr-plated steel, 23°C, static, ASTM D 1894)

Formulario

powder

mol peso

average Mw 3,000,000-6,000,000

dureza

52 (Rockwell R, ASTM D 785)

temperatura de transición

softening point 136 °C (Vicat, ASTM D 1525B)
Tm 138 °C (DSC)

densidad

0.94 g/mL at 25 °C

cadena SMILES

C=C

InChI

1S/C2H4/c1-2/h1-2H2

Clave InChI

VGGSQFUCUMXWEO-UHFFFAOYSA-N

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Categorías relacionadas

Aplicación

Bearings, gears, bushings and other moving parts.

Características y beneficios

Self-lubricating extraordinary wear properties.
Abrasion, corrosion and impact resistance exceeds many conventional materials, including steel and expensive metals and alloys.

Código de clase de almacenamiento

11 - Combustible Solids

Clase de riesgo para el agua (WGK)

WGK 3

Equipo de protección personal

Eyeshields, Gloves, type N95 (US)

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Certificados de análisis (COA)

Lot/Batch Number
MKCQ1749
MKCQ1553
MKCH3289
MKCC9507
MKBZ3694V

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Si necesita una versión concreta, puede buscar un certificado específico por el número de lote.

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Lisa K McCarthy et al.
Pediatrics, 132(1), e135-e141 (2013-06-19)
Hypothermia on admission to the NICU is associated with increased mortality in preterm infants. Many newborns are hypothermic on admission despite using polyethylene bags (PBs). Using exothermic mattresses (EMs) in addition to PBs may reduce hypothermia but increase hyperthermia. We
Katharine S Woods et al.
American journal of veterinary research, 74(4), 523-529 (2013-03-28)
To compare the diagnostic quality of bronchoalveolar lavage (BAL) fluid acquired from healthy dogs by manual aspiration via polyethylene tubing (MAPT) and via suction pump aspiration (SPA) with a suction trap connection. 12 healthy adult Beagles. BAL was performed with
Matteo Gumiero et al.
Food chemistry, 138(2-3), 1633-1640 (2013-02-16)
A high density polyethylene (HDPE)/calcium carbonate (CaCO(3)) film containing TiO(2) was prepared via blown film extrusion process. The photocatalytic properties of this film were evaluated by voltammetric, UV-Vis spectrophotometric and gas chromatographic measurements following the decomposition rate of suitably selected
[Technologies for manufacturing ultra-high molecular polyethylene-based porous structures for bone implants].
A V Maksimkin et al.
Meditsinskaia tekhnika, (2)(2), 16-20 (2013-06-26)
Łukasz Krakowxzyk et al.
Medical science monitor basic research, 19, 210-213 (2013-08-22)
The search for new surgical flap techniques and modifications of already existing ones is gaining increasing popularity. Progress in flap designing and harvesting have improved the functional and aesthetic results, especially in head and neck reconstruction. Ten pigs were used
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Questions

1–4 of 4 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. What is the technique used to derive the polymer’s molecular weight of the product 429015?

    1 answer

    1. According to the supplier, the molecular weight for 429015 Polyethylene is determined by viscometry.

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  4. What is the particle size for this product

    1 answer

    1. The particle size of this item is not determined.

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