Copper Foil

Main Highlights

• Bulk Density: ~ 8.96 g/cm³
• Molecular Weight: 63.55
• Density: 8.96 g/cm³
• Electronic Configuration: Copper [Ar] 3d⁹ 4s²
• Chemical Composition: 100% Copper
• Molar Mass: 63.55 g/mol.
• Melting Point: 1083.4 °C
• Boiling Point: 2567 °C
• Colour: Coppery-red
• Form: Thin Sheet
• Solubility in H₂O: N/A
• Electrical Resistivity: 1.678 microhm-cm @ 20 °C
• Electronegativity: 1.9 Paulings
• Heat of Fusion: 3.11 Cal/gm mole
• Heat of Vaporization: 72.8 K-cal/gm atom at 2567 °C
• Poisson’s Ratio: 0.34
• Specific Heat: 0.092 Cal/g/K @ 25 °C
• Tensile Strength: N/A
• Thermal Conductivity: 4.01 W/cm/K @ 298.2 K
• Thermal Expansion: (25 °C) 16.5 µm·m-1·K-1
• Vickers Hardness: 369 MPa
• Young’s Modulus: 110–128 GPa

Description and Specification

Copper foil is a thin, flexible sheet made of copper. It is crucial to the manufacturing of electrical components. Its thickness ranges from incredibly small millimeter fractions to many millimeters. It connects circuits and components on printed circuit boards (PCBs). It also improves solar panel energy conversion and battery energy storage. Because of its exceptional electrical conductivity, flexibility, and corrosion resistance, it is essential to many cutting-edge technologies.

Melted copper is first poured into broad blocks for production and repeatedly pressed for the necessary thinness. Annealing is used to increase the foil’s flexibility and lower its stress. Atoms are free to move throughout the heating and cooling cycles during annealing, which reduces internal tensions and improves the material’s bendability. Depending on the application, finishing stages apply particular surface textures, such as glossy, semi-matte, or matte finishes. The completed foil is rolled into spools of different lengths and thicknesses to prepare it for various applications. Copper is a good conductor of electricity; thus, its foil is used in applications requiring high electrical conductivity. Additionally, well-made copper foil enhances solar panel energy conversion and aids battery energy storage.

There are a few main types of copper foil:

• Electrodeposited copper foil offers uniform thickness and conductivity for electronics.
• Rolled annealed foil provides good flexibility for bendable PCBs.
• High-temperature rolled annealed withstands more heat.
• Ultra-thin copper foil serves space-limited uses.

Features Of Copper Foil

• Thickness: Copper foil comes in a range of thicknesses, typically expressed in ounces per square foot (oz/ft) or micrometers.
• Flexibility: Compared to electrolytic copper foil, rolled copper foil is more flexible.
• Durable and Non-Toxic: It is orderless and doesn’t affect our health. It is a safe material.
• Very Tough: It is appropriate for applications requiring resilience and wear resistance because of its toughness.
• High Purity: Copper foil is ideal for various applications due to its high purity.
• High Heat Resistance:High heat resistance and melting point ensure stability at harsh temperatures.
• Fine Powder Composition: The fine powder’s striking copper tone compliments a variety of mixes and uses.
• Large Surface Area: The vast surface area allows for significant interactions across various processes.
• Smaller Particles: Smaller particles (20-600 nanometers) enable fine modifications for various purposes.
• Different Structural Forms: Structural forms can vary according to circumstances, such as sheet-like, rod-shaped, or needle-like.
• Eco-Friendly: The environmentally friendly material ensures minimal impact on the environment.
• Antibacterial: Its antibacterial nature makes it an excellent choice for medicine.

Copper Foil’s Applications

Electronics companies manufacture PCBs and electronic components because of their exceptional conductivity. In order to insulate wires from interference, the foil also acts as an electromagnetic shield. Beyond its practical applications, it gives ornamental arts like sculptures and artwork a unique metallic touch. The construction of solar panels, which use their conductivity and corrosion resistance, assists the sustainable energy sector. It is used in the automobile industry’s flexible circuits and electrical systems. It is used in construction for cladding and roofing. Its superior thermal conductivity makes effective heat transfer possible in heat exchangers. Artificial jewelry can also be finished with copper foil for a cost-effective metallic look. Its antibacterial qualities make it useful in medical equipment.

• Outstanding electrical conductivity with very low resistivity
• Excellent thermal conductivity for heat-transfer applications
• Ideal for PCB, flexible circuit and electronic manufacturing
• Widely used as an anode current collector in lithium-ion batteries
• Excellent EMI and RFI shielding capability
• Easy to solder, cut, form and fabricate
• Available in electrodeposited and rolled-annealed configurations
• Suitable for research, electronics, photovoltaic and energy-storage applications

How To Use copper foil?

• Apply the foil carefully to the designated surface using adhesive.
• Use an appropriate cleaner to clean the foil after soldering for a polished look.
• For accurate cutting, use instruments such as scissors.
• Place and align the cut copper foil on the adhesive-coated surface accurately.
• To encourage the copper foil’s adhesion to the surface, gently press it.
• Use a burnishing tool to eliminate air bubbles and create a strong connection.
• When working on stained glass crafts, fold the foil’s edges to form a sturdy border.
• For crucial structural integrity, use flux and uniformly spread solder along seams using a soldering iron.
• To guarantee that the foil sticks properly, thoroughly clean the work surface.
• Strictly follow the manufacturer’s directions for best results in various applications, including electronics, stained glass, and other crafts.

Safety Guidelines

• When handling, use masks, gloves, face shields, and goggles resistant to chemicals.
• Rinse eyes well with fresh water. Before washing eyes, make sure the hands are clean.
• Breathe rapidly, go to a well-ventilated environment, and provide artificial respiration if necessary. Give oxygen to people who are having trouble breathing.
• Seek medical advice if inflammation develops.
• After being dissolved in a flammable solvent, the remaining goods should be burned in a chemical incinerator. Stay away from drains.
• When cleaning up spills, use a moist cloth to prevent the creation of dust and aerosols. Keep the foil in a cool, dry location out of direct sunlight. Make sure the lid closes all the way.

Why Select us?

As a leading producer and supplier of copper foil, Techinstro specializes in innovative products. We take pride in producing reasonably priced copper fossils of the highest caliber. As its provider, we offer powdered and scattered copper to give customers more purchasing options. We prioritize efficient production to meet delivery deadlines and facilitate prompt, dependable customer shipments. Prominent companies rely on us to deliver outstanding copper foil tailored to their manufacturing requirements. As a creative manufacturer, we value both price and quality. We provide all specified forms of high-quality, reasonably priced copper foil. Techinstro is the leading supplier of copper foil solutions for key industries due to our effective manufacturing and prompt delivery.