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340502

Sigma-Aldrich

聚(乙烯-co-乙酸乙烯酯)

vinyl acetate 40 wt. %, melt index (41-63 dg/min (190°C/2.16kg)), contains 190-910 ppm inhibitor

别名:

PEVA

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250 G
$225.00

$225.00

国内现货，预计发货时间2025年4月25日详情

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250 G
$225.00

About This Item

线性分子式:
(CH2CH2)m[CH2CH(OCOCH3)]n
CAS号:
24937-78-8
MDL编号:
MFCD00133996
UNSPSC代码:
12162002
PubChem化学物质编号:
24860820
NACRES:
NA.23

$225.00

国内现货，预计发货时间2025年4月25日详情

获取大包装报价

表单

beads

质量水平

100

自燃温度

500 °F

熔融指数

(41-63 dg/min (190°C/2.16kg))

包含

190-910 ppm inhibitor

组成

vinyl acetate, 40 wt. %

硬度

40 (Shore A-2, ASTM D 2240)

转变温度

Tg −40-−30 °C
Tm 110-120 °C

溶解性

toluene, THF, and MEK: soluble

SMILES字符串

C=C.CC(=O)OC=C

InChI

1S/C4H6O2.C2H4/c1-2-3-4(5)6;1-2/h2H,1,3H2,(H,5,6);1-2H2

InChI key

DQXBYHZEEUGOBF-UHFFFAOYSA-N

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相关类别

一般描述

乙烯-醋酸乙烯共聚物(PEVA)是具有良好机械和物理性能的阻燃材料，主要用作线缆行业的绝缘材料。[1][2]

应用

  • 内聚能密度、自由体积分数与气体输运性质的关系：本研究探讨了EVA材料影响其透气性的特性，这对于包装和屏障材料等应用很重要（Kubica & Wolinska-Grabczyk, 2015）。
  • EVA及其交联类似物的热力学性能研究：本研究探讨了交联如何影响EVA的热性能和机械性能，对研究聚合物的材料科学家可能很有吸引力（Wang & Deng, 2019）。
  • 环烯烃共聚物/EVA共混膜的形态、流变学和力学性能研究：本研究重点关注EVA与其他聚合物的共混特性，为学术界和材料科学提供了有用的见解（Durmus et al., 2018）。
  • EVA/磁铁矿纳米复合材料的制备、表征及性能研究：本研究面向材料科学家，讨论了将磁铁矿纳米颗粒掺入EVA以增强性能的方法（Ramesan, 2014）。

储存分类代码

11 - Combustible Solids

WGK

nwg

闪点(°F)

Not applicable

闪点(°C)

Not applicable

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
MKCX5227
MKCW1700
MKCT7610
MKCR4481
MKCM5048

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Poly (ethylene-co-vinyl acetate)/clay nanocomposites: Effect of clay nature and organic modifiers on morphology, mechanical and thermal properties
Peeterbroeck S, et al.
Polymer Degradation and Stability, 90(2), 288-294 (2005)
Preparation and flammability of a novel intumescent flame-retardant poly (ethylene-co-vinyl acetate) system
Wang D, et al.
Polymer Degradation and Stability, 93(12), 2186-2192 (2008)
A Almeida et al.
European journal of pharmaceutics and biopharmaceutics : official journal of Arbeitsgemeinschaft fur Pharmazeutische Verfahrenstechnik e.V, 82(3), 526-533 (2012-09-19)
The aim of the present study was to evaluate the importance of matrix flexibility of hot-melt extruded (HME) ethylene vinyl acetate (EVA) matrices (with vinyl acetate (VA) contents of 9%, 15%, 28% and 40%), through the addition of hydrophilic polymers
Taiji Ogawa et al.
International journal of oral science, 4(1), 14-18 (2012-03-17)
Bacterial infection associated with the use of medical or dental devices is a serious concern. Although devices made of ethylene vinyl acetate (EVA) are often used in the oral cavity, there are no established standards for their storage. We investigated
Lili Wang et al.
PloS one, 7(6), e37781-e37781 (2012-06-14)
The study on the rare earth (RE)-doped layered double hydroxides (LDHs) has received considerable attention due to their potential applications in catalysts. However, the use of RE-doped LDHs as polymer halogen-free flame retardants was seldom investigated. Furthermore, the effect of
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  1. How can I determine the shelf life / expiration / retest date of this product?

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    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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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

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    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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