Description

Polystyrene (CAS NO 9003-53-6) is a versatile synthetic aromatic polymer derived from the monomer styrene, valued for its excellent clarity, rigidity, and ease of processing. This thermoplastic polymer is a cornerstone material for manufacturers requiring a cost-effective, lightweight, and moldable plastic with good electrical insulation properties. It is essential for industries producing disposable consumer goods, protective packaging, and specialized components for electronics and construction.

Application

• Packaging: Production of clear food containers, disposable cups, lids, and clamshells, as well as protective foam packaging (Expanded Polystyrene - EPS) for cushioning.
• Consumer Goods: Manufacturing of toys, model kits, cosmetic cases, and household appliance housings.
• Electronics: Used in housings for televisions, computers, and office equipment, and for internal components like capacitor films due to its dielectric properties.
• Construction & Building: Fabrication of insulation boards (XPS - Extruded Polystyrene), light diffusers, and decorative moldings.
• Medical & Laboratory: Utilized for disposable petri dishes, test tubes, and diagnostic components where clarity and sterility are key.
• Automotive: Components for interior trim, knobs, and instrument panels.

Basic Information

Product Name	Polystyrene
CAS No.	9003-53-6
Molecular Formula	(C8H8)n
Molecular Weight	104.15 (monomer unit)
Synonyms	Polystyrene resin; PS; GPPS (General Purpose Polystyrene); Crystal Polystyrene; Atactic Polystyrene; Styron; Styrofoam (brand name for EPS); Poly(1-phenylethylene); Poly(styrene); EINECS 202-851-5
EINECS	202-851-5

Quality Control

Our Polystyrene is produced under stringent quality management systems to ensure batch-to-batch consistency and performance. Quality is verified through comprehensive testing of key parameters including molecular weight distribution, melt flow index (MFI), residual monomer content, and optical properties. Certificates of Analysis (COA) detailing these specifications are provided with every shipment to guarantee compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from heat sources, open flames, and strong oxidizing agents. For expanded polystyrene (EPS) beads, ensure storage areas are free from static electricity ignition sources.

Specification

Item	Specification
Appearance	Clear, colorless beads or pellets
Identification (IR)	Conforms to standard
Melt Flow Rate (MFR)	1.5 - 30 g/10 min (Grade Dependent)
Vicat Softening Temperature	80 - 105 °C
Tensile Strength	30 - 60 MPa
Residual Styrene Monomer	< 1000 ppm
Volatile Matter	< 0.5 %

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.