Dia 100mm PC Transparent Plastic Rods

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Product details

Dia 100mm PC Transparent Plastic Rods

PC rods (polycarbonate rods) are solid cylindrical plastic rods made from polycarbonate (PC) through extrusion or injection molding. A diameter of 100 mm (approximately 4 inches) is considered a large-size PC rod and is typically used in industrial, optical, or specialized structural applications requiring high strength, transparency, impact resistance, and temperature resistance.

PC (polycarbonate): A high-performance engineering plastic containing carbonate groups (-O-(C=O)-O-) in its molecular chain. It is synthesized through the polycondensation reaction of bisphenol A (BPA) and phosgene (or diphenyl carbonate). Its core properties are "transparent as glass + tough as steel"—combining extremely high impact strength (200 times that of glass), excellent optical clarity (over 90% transmittance), wide temperature stability (-40°C to 120°C), and superior electrical insulation, making it a "high-end representative" of engineering plastics.

Typical applications for the 100mm PC Rod include large optical equipment supports, industrial protective cover frames, load-bearing structures for precision instruments, and transparent soundproofing. These applications require high dimensional stability, high mechanical properties, and specialized functions (such as light transmission and weather resistance).

Basic Physical Properties

Density: 1.20 g/cm³ (slightly heavier than water, about half that of aluminum)

Colors: Clear (most commonly used, optical grade), Black (with added carbon black for UV protection), Light Blue (customizable)

Transparent PC rods have a light transmittance of ≥90% (close to glass), suitable for optical applications; Black PC rods, due to the addition of 2-3% carbon black, offer improved weather resistance (for outdoor protection).

Surface: Smooth cylindrical surface (naturally formed during the extrusion process, can be polished to a mirror finish for optical quality), customizable chamfered/frosted edges

Large-sized rods (100mm) require even greater surface flatness control to avoid ripples or ovality after processing.

Mechanical Properties

Tensile Strength: 65.4 MPa (approximately one-third that of mild steel, but significantly higher than the 30 MPa of common plastics such as PP);

Flexural Strength: 90-110 MPa (can withstand moderate static loads, such as supporting structures or frames);

Notched Impact Strength: 200-300 kJ/m² (unnotched impact strength is even higher, reaching over 500 kJ/m²) (approximately 200 times that of ordinary glass, making it less susceptible to brittle fracture even with slight notches on the edges of large-sized rods);

Shore Hardness: 84;

Elastic Modulus: 2200-2400 MPa (Stronger than PA6/POM, but lower than metal, making it suitable for load-bearing applications requiring a certain degree of flexibility).

Large-Size Adaptability: 100mm diameter PC rods maintain high impact strength while balancing weight and load requirements through wall thickness design (e.g., solid rods or hollow structures). (For example, a solid 100mm PC rod can withstand an axial load of approximately 5-8 tons, depending on length and support conditions).

pc rod

Thermal Performance

Melting Point: Approximately 220-230°C (actual processing temperature may need to be slightly higher, approximately 280-320°C);

Heat Deflection Temperature (HDT): 135°C (under 0.45 MPa load) (Long-term operating temperature 120°C, short-term resistance to 140-150°C);

Low-Temperature Toughness: Maintains high impact strength at -40°C (no embrittlement, suitable for outdoor applications in cold regions).

Note: PC rods are not heat-resistant (softening and deformation will occur above 120°C). 100mm large-size rods should be protected from localized heat exposure (such as near heat sources or direct sunlight) in high-temperature environments.

Optical Performance

Light Transmittance: Optical-grade transparent PC rods have a light transmittance of ≥90% (close to 92% for glass), and a haze of ≤1% (when the surface is smooth and flawless).

Refractive Index: 1.586 (close to glass, suitable for optical lenses or light-guiding components).

Weather Resistance (Transparent): Long-term UV exposure can cause yellowing (without added UV stabilizers). Therefore, for transparent outdoor applications, select PC rods with added UV stabilizers.

Typical Applications: 100mm transparent PC rods can be used for large observation windows, optical fiber protective sleeves, and support frames for optical laboratory equipment (requiring high light transmittance and impact resistance).

polycarbonate rods

Chemical Properties

Chemical Corrosion Resistance: Stable to water, salt water, weak acids (such as dilute acetic acid), and weak bases (such as soapy water); resistant to most non-oxidizing organic solvents (such as ethanol and gasoline); however, susceptible to strong acids (concentrated sulfuric acid/nitric acid), strong bases (long-term immersion in concentrated sodium hydroxide), ketones (acetone), and aromatic hydrocarbons (toluene).

Oil Resistance: Excellent resistance to mineral oils and lubricating oils (volume change rate <5%), suitable for lubricated environments.

Electrical Properties

Insulation: Volume resistivity > 10¹⁵ Ω·cm, dielectric strength 20-25 kV/mm, making it an excellent insulating material (suitable for electronic device support components).

Dielectric Constant: Low and stable 2.9-3.1, suitable for insulation protection of low-frequency electronic components.