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Grade: Impact Modified
Composition: PMMA, Acrylic
Form: Coil
Material: Polymethyl methacrylate (PMMA)
CAS Number: 9011-14-7
Commodity: Polymers
Thickness:
0.05mm
Coil Width:
610mm
Production Method:
Extruded
Transparency:
Clear/Transparent
Impact-modified PMMA Coil is a polymeric film material engineered for improved toughness while maintaining the high transparency, UV stability, and weather resistance of standard polymethyl methacrylate. By incorporating core–shell particle structures and tailored copolymer blends, its fracture resistance is significantly enhanced without sacrificing optical clarity, making it highly suitable for demanding environments. Industries such as automotive, construction, and electronics utilize impact-modified PMMA coils in glazing, protective films, and optical components where both durability and aesthetics are critical. Specific applications include high-strength transparent windows, protective display layers, and coatings for outdoor architectural panels. Research emphasizes the importance of precise refractive index matching in the polymer phases to achieve both toughness and high optical transmission, as well as coextrusion processes to optimize adhesion and weathering resistance. In both scientific and industrial contexts, Impact-modified PMMA Coil provides a valuable balance of strength, clarity, and stability, supporting advanced designs in optics, protective materials, and high-performance polymer systems.
Tolerances
Coil
| Thickness | ±20% |
|---|
Material Properties for Polymers
Physical Properties
| Element | Value |
|---|---|
| Abbe number | 57.2 |
| Flammability | HB |
| Radiation resistance | Fair |
| Refractive index | 1.49 |
| Resistance to Ultra-violet | Good |
| Limiting oxygen index( % ) | 17-20 |
| Water absorption - over 24 hours( % ) | 0.2 |
| Density( gcm⁻³ ) | 1.19 |
Chemical Resistance
| Element | Value |
|---|---|
| Acids - concentrated | Good-Poor |
| Acids - dilute | Good-Poor |
| Alcohols | Good-Poor |
| Alkalis | Good |
| Aromatic hydrocarbons | Poor |
| Greases and Oils | Good |
| Halogenated Hydrocarbons | Poor |
| Halogens | Poor |
| Ketones | Poor |
Electrical Properties
| Element | Value |
|---|---|
| Dielectric constant @1MHz | 2.6 |
| Dissipation factor @ 1MHz | 0.014 |
| Dielectric strength( kV mm⁻¹ ) | 15 |
| Surface resistivity( Ohm/sq ) | 10¹⁴ |
| Volume resistivity( Ohmcm ) | 2-14 x 10¹⁵ |
Mechanical Properties
| Element | Value |
|---|---|
| Hardness - Rockwell | M92-100 |
| Poisson's ratio | 0.35-0.4 |
| Elongation at break( % ) | 2.5-4 |
| Tensile modulus( GPa ) | 2.4-3.3 |
| Izod impact strength( J m⁻¹ ) | 16-32 |
| Tensile strength( MPa ) | 80 |
Thermal Properties
| Element | Value |
|---|---|
| Heat-deflection temperature - 0.45MPa( C ) | 105 |
| Heat-deflection temperature - 1.8MPa( C ) | 95 |
| Lower working temperature( C ) | -40 |
| Upper working temperature( C ) | 50-90 |
| Specific heat( J K⁻¹ kg⁻¹ ) | 1400-1500 |
| Thermal conductivity( W m⁻¹ K⁻¹ ) | 0.17-0.19@23°C |
| Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) | 70-77 |
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