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429015

Sigma-Aldrich

聚乙烯

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

同義詞:

PE

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About This Item

線性公式:
H(CH2CH2)nH
CAS號碼:
9002-88-4
MDL號碼:
MFCD00084423
分類程式碼代碼:
12162002
PubChem物質ID:
24866830
NACRES:
NA.23
暫時無法取得訂價和供貨情況

描述

coefficient of friction: 0.20 - 0.25

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

品質等級

100

形狀

powder

分子量

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

硬度

52 (Rockwell R, ASTM D 785)

轉變溫度

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

密度

0.94 g/mL at 25 °C

SMILES 字串

C=C

InChI

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

InChI 密鑰

VGGSQFUCUMXWEO-UHFFFAOYSA-N

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相關類別

應用

用于制备轴承、齿轮、轴衬和其他活动部件。

特點和優勢

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。

儲存類別代碼

11 - Combustible Solids

水污染物質分類（WGK）

WGK 3

個人防護裝備

Eyeshields, Gloves, type N95 (US)

從最近期的版本中選擇一個：

分析證明 (COA)

Lot/Batch Number
MKCQ1749
MKCQ1553
MKCH3289
MKCC9507
MKBZ3694V

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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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