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429015

Sigma-Aldrich

聚乙烯

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

别名:

PE

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250 G
$107.00
1 KG
$210.00

$107.00

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250 G
$107.00
1 KG
$210.00

About This Item

线性分子式:
H(CH2CH2)nH
CAS号:
9002-88-4
MDL编号:
MFCD00084423
UNSPSC代码:
12162002
PubChem化学物质编号:
24866830
NACRES:
NA.23

$107.00

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描述

coefficient of friction: 0.20 - 0.25

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

表单

powder

分子量

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

硬度

52 (Rockwell R, ASTM D 785)

转变温度

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

密度

0.94 g/mL at 25 °C

SMILES字符串

C=C

InChI

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

InChI key

VGGSQFUCUMXWEO-UHFFFAOYSA-N

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相关类别

应用

用于制备轴承、齿轮、轴衬和其他活动部件。

特点和优势

具有非凡的自润滑、抗磨损性。
杰出的耐表面磨损、耐锈蚀和抗冲击性能超越诸多传统材料，包括钢、贵金属和合金。

储存分类代码

11 - Combustible Solids

WGK

WGK 3

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
MKCQ1749
MKCQ1553
MKCH3289
MKCC9507
MKBZ3694V

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聚乙烯 (LDPE) ERM®, certified reference material

ERMEC590

聚乙烯 (LDPE)

Mahtab Memarpour et al.
The journal of adhesive dentistry, 15(1), 85-91 (2013-03-28)
To evaluate the clinical performance of polyethylene fiber for anterior primary teeth restorations in children after 2.5 years, according to modified Ryge criteria. Fifty-five maxillary incisors with extensive caries in 24 Iranian patients (mean age 4.2 years) were restored. All
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
[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)
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
Alicia E Leadford et al.
Pediatrics, 132(1), e128-e134 (2013-06-05)
Hypothermia contributes to neonatal mortality and morbidity, especially in preterm and low birth weight infants in developing countries. Plastic bags covering the trunk and extremities of very low birth weight infants reduces hypothermia. This technique has not been studied in
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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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