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429015

Sigma-Aldrich

Polyethylene

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

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Synonym(s):
PE
Linear Formula:
H(CH2CH2)nH
CAS Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.23

description

coefficient of friction: 0.20 - 0.25

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

Quality Level

form

powder

mol wt

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

hardness

52 (Rockwell R, ASTM D 785)

transition temp

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

density

0.94 g/mL at 25 °C

InChI

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

InChI key

VGGSQFUCUMXWEO-UHFFFAOYSA-N

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This Item
428043427772414093
Polyethylene Ultra-high molecular weight, average Mw 3,000,000-6,000,000

Sigma-Aldrich

429015

Polyethylene

Polyethylene low density, melt index 25 g/10 min (190°C/2.16kg)

Sigma-Aldrich

428043

Polyethylene

Polyethylene average Mw ~4,000 by GPC, average Mn ~1,700 by GPC

Sigma-Aldrich

427772

Polyethylene

transition temp

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

transition temp

softening point 93 °C (Vicat, ASTM D 1525)

transition temp

softening point 106 °C (ring and ball)

transition temp

Tm 183 °C (DSC peak), Tg 69 °C

density

0.94 g/mL at 25 °C

density

0.925 g/mL at 25 °C

density

0.92 g/mL at 25 °C

density

1.19 g/mL at 25 °C

description

coefficient of friction: 0.20 - 0.25

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

description

-

description

-

description

-

mol wt

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

mol wt

-

mol wt

average Mn ~1,700 by GPC, average Mw ~4,000 by GPC

mol wt

-

hardness

52 (Rockwell R, ASTM D 785)

hardness

-

hardness

-

hardness

100 (Rockwell M, ASTM D 785)

Application

Bearings, gears, bushings and other moving parts.

Features and Benefits

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

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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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
Ingvild Bostadløkken et al.
Ugeskrift for laeger, 175(13), 891-892 (2013-04-16)
We present a case of a 66-year-old woman who had a total knee arthroplasty. Shortly after surgery a 90° rotation of her polyethylene liner took place. The complication was undiagnosed for 1.5 years. To know this problem and be able
Eliandra Mirlei Rossi et al.
Journal of infection in developing countries, 7(3), 229-234 (2013-03-16)
Contaminated sponges might lead to cross-contamination in kitchens since they can transfer microorganisms to surfaces where microorganisms can survive for hours or days and contaminate food. The main objective of this study was to evaluate the transfer and the survival
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
Kelly M Seymour et al.
Journal of biomechanical engineering, 135(2), 021017-021017 (2013-03-01)
Ultra high molecular weight polyethylene (UHMWPE, or ultra high), a frequently used material in orthopedic joint replacements, is often the cause of joint failure due to wear, fatigue, or fracture. These mechanical failures have been related to ultra high's strength

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