430102

Polystyrene

average M_w ~192,000

• Synonym(e): PS
• Lineare Formel: [CH₂CH(C₆H₅)]_n
• CAS-Nummer: 9003-53-6
• UNSPSC Code: 12162002
• PubChem Substance ID: 24866910
• NACRES: NA.23
• MDL number: MFCD00084450

Eigenschaften

• form: beads or pellets
• Quality Segment: 100
• melt index: 6.0-9.0 g/10 min (200°C/5kg)
• mol wt: average M_w ~192,000
• feature: hydrophobic
• refractive index: n20/D 1.59
• transition temp: softening point 107 °C (Vicat, ASTM D 1525)
• SMILES string: c1(ccccc1)C=C
• InChI: 1S/C8H8/c1-2-8-6-4-3-5-7-8/h2-7H,1H2
• InChI key: PPBRXRYQALVLMV-UHFFFAOYSA-N

Beschreibung

General description

Hard, clear moderately strong polymer, biologically inert, good dimensional stability. Susceptible to exterior (UV) degradation.

Application

Extrusion molded foamed packaging, dinnerware, bottles and toys. Injection molded packaging containers, toys and disposable cutlery.

Features and Benefits

• Medium molecular weight (~192,000 Mw) balancing excellent mechanical strength and processability, making it suitable for varied applications.
• Beads or pellets form allows for easy handling, processing, and uniform melting in manufacturing processes.
• Melt index of 6.0–9.0 g/10 min (200°C/5kg) provides good flow characteristics, enabling efficient molding and extrusion.

Physical form

Thermoplastic amorphous polymer.

Sicherheitshinweise

• Lagerklasse: 11 - Combustible Solids
• Flammpunkt (°F): Not applicable
• Flammpunkt (°C): Not applicable
• PSA (Persönliche Schutzausrüstung): Eyeshields, Gloves, type N95 (US)