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434272

Sigma-Aldrich

Polyethylene

Ultra-high molecular weight, surface-modified, powder, 34-50 μm particle size

Synonym(s):

UHMWPE

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About This Item

Linear Formula:
H(CH2CH2)nH
CAS Number:
MDL number:
UNSPSC Code:
12162002
PubChem Substance ID:
NACRES:
NA.23

form

powder

mol wt

(Ultra-high molecular weight)

particle size

34-50 μm

mp

144 °C

transition temp

Tm (DSC) 144 °C (at peak)

density

0.94 g/mL at 25 °C

InChI

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

InChI key

VGGSQFUCUMXWEO-UHFFFAOYSA-N

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Application

Additive to unsaturated polyesters, epoxides and other polymers to impart the unique properties of UHMWPE. Used in industrial parts, coatings and wear surfaces at 10-40 wt. %.

Features and Benefits

Polar surface groups assist chemical and physical bonding to matrix material. Contributes superior abrasion resistance, reduced coefficient of friction, enhanced tear strength and improved moisture resistance. Easier to process in particle form than molten UHMWPE.

Physical form

Particle surface is modified to contain acid and hydroxy groups.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Andrés Felipe Cruz-Pacheco et al.
Polymers, 12(5) (2020-05-23)
Polyaniline (PANI) has recently gained great attention due to its outstanding electrical properties and ease of processability; these characteristics make it ideal for the manufacturing of polymer blends. In this study, the processing and piezoresistive characterization of polymer composites resulting
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
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
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
Morteza Meftah et al.
The Journal of bone and joint surgery. American volume, 95(13), 1193-1197 (2013-07-05)
Ceramic femoral heads produce less wear of the opposing polyethylene than do metal femoral heads in wear simulation studies. This is a matched-pair analysis of the wear of ceramic and metal femoral heads on conventional polyethylene in uncemented total hip

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