434272

Polyethylene

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

• Synonym(s): UHMWPE
• Linear Formula: H(CH₂CH₂)_nH
• CAS Number: 9002-88-4
• MDL number: MFCD00084423
• UNSPSC Code: 12162002
• PubChem Substance ID: 24867184
• NACRES: NA.23

Properties

• Quality Level: 100
• form: powder
• mol wt: (Ultra-high molecular weight)
• particle size: 34-50 μm
• mp: 144 °C
• transition temp: T_m (DSC) 144 °C (at peak)
• density: 0.94 g/mL at 25 °C
• SMILES string: C=C
• InChI: 1S/C2H4/c1-2/h1-2H2
• InChI key: VGGSQFUCUMXWEO-UHFFFAOYSA-N

Description

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.

Safety Information

• 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