PS Powder

Formula: PS

Form: Powder

Material: Polystyrene (PS)

CAS Number: 9003-53-6

Commodity: Polymers

Max Particle Size: 900μm

Bulk Density: 0.6g/cm³

Type: Expandable Bead

Color: White

PS Powder (Polystyrene Powder) is widely used in materials science, microencapsulation, 3D printing, and composite formulation due to its thermal stability, low density, and versatility. It plays a key role in polymer blends, coatings, and dispersion formulations to modify mechanical and surface properties for industrial, electronic, and diagnostic applications. In research laboratories, polystyrene microstructures aid in precision engineering, nanotechnology innovations, and controlled-release formulations. Additionally, PS powder enhances polymer processing in thermoplastic composites, making it valuable for advanced manufacturing, electronic components, and biomedical lab consumables.

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Technical Data Sheet Safety Data Sheet Tolerance Properties

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Tolerances

Powder

Mean Particle Size		Nominal
Minimum Particle Size		Nominal
Maximum Particle Size		Nominal
Maximum Particle Size		Nominal
Particle Size D10		Nominal
Particle Size D50		Nominal
Particle Size D90		Nominal

Material Properties for Polymers

Physical Properties

Element	Value
Abbe number	30.8
Flammability	HB
Radiation resistance	Good
Refractive index	1.59-1.6
Resistance to Ultra-violet	Poor
Limiting oxygen index( % )	19
Water absorption - over 24 hours( % )	0.4
Density( gcm⁻³ )	1.05

Chemical Resistance

Element	Value
Acids - concentrated	Fair-Poor
Acids - dilute	Good-Fair
Alcohols	Good-Fair
Alkalis	Good-Fair
Aromatic hydrocarbons	Poor
Greases and Oils	Good-Poor
Halogenated Hydrocarbons	Poor
Halogens	Poor
Ketones	Poor

Electrical Properties

Element	Value
Dielectric constant @1MHz	2.4-3.1
Dissipation factor @ 1kHz	0.0002
Dielectric strength( kV mm⁻¹ )	20
Volume resistivity( Ohmcm )	>10¹⁶

Mechanical Properties

Element	Value
Hardness - Rockwell	M60-90
Poisson's ratio	0.35
Elongation at break( % )	1.6
Tensile modulus( GPa )	2.3-4.1
Izod impact strength( J m⁻¹ )	19-24
Tensile strength( MPa )	30-100

Thermal Properties

Element	Value
Heat-deflection temperature - 0.45MPa( C )	90
Heat-deflection temperature - 1.8MPa( C )	80
Upper working temperature( C )	50-95
Specific heat( J K⁻¹ kg⁻¹ )	1200
Thermal conductivity( W m⁻¹ K⁻¹ )	0.1-0.13@23°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ )	30-210

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PS Powder

Tolerances

Material Properties for Polymers