FR4 G10 Fiberglass Epoxy Sheets

FR4 Fiberglass Epoxy Sheets

FR4 is a common composite material widely used in the manufacture of electronic circuit boards. It consists of a layer of glass fiber and a layer of epoxy resin. The glass fiber cloth, as a reinforcement material, provides good mechanical properties for FR4. Epoxy resin, as a matrix material, is bonded with the glass fiber cloth to form a strong composite material.

Characteristics

Electrical properties: FR4 has extremely high insulation resistance and breakdown voltage, which can effectively prevent current leakage and breakdown. Its dielectric constant and dielectric loss factor are low, which can reduce signal attenuation and loss when used in high-frequency circuits.

Mechanical properties: FR4 has good mechanical strength and rigidity, and can withstand certain pressure, tension and bending force. At the same time, it also has a certain toughness and is not easy to break and deform.

Heat resistance: FR4 has a high heat deformation temperature and glass transition temperature, and can maintain stable performance in high temperature environments.

Flame retardant properties: FR4 has good flame retardancy. It can self-extinguish when encountering flames, which reduces the occurrence and spread of fires.

Manufacturing process

FR4 fiberglass epoxy sheet is a plate-shaped material made of electronic-grade fiberglass cloth impregnated with epoxy resin and hot-pressed. During the manufacturing process, the quality of the fiberglass cloth and the formula of the epoxy resin, as well as the parameters such as the temperature, pressure and time of the hot pressing, need to be strictly controlled to ensure the performance and quality of the board.

Application areas

Printed circuit boards: FR4 is one of the most commonly used substrates for printed circuit boards and is widely used in various electronic devices such as computers, mobile phones, and communication equipment.

Electrical equipment: It can be used for insulating parts of electrical equipment such as transformers, switching power supplies and motors to ensure the safe operation of the equipment.

Mechanical structural parts: FR4 can also be used as structural parts in some mechanical structures that have high requirements for insulation and mechanical properties.

G10 Fiberglass Epoxy Sheets

G10 is a composite material made of fiber glass cloth and epoxy resin, originally developed for use in aircraft, and it is capable of withstanding great forces without deformation. This material has insulating and acid-alkali resistance properties, and is not permeable to water vapor or liquids, while being lightweight. These characteristics make G10 an ideal choice for various fields such as electronics, aerospace, chemical industry, and precision instrument manufacturing.

Features

Insulation performance: G10 also has excellent insulation performance, high insulation resistance, strong breakdown voltage, and can effectively isolate current.

Mechanical properties: Compared with FR-4, G10 has higher mechanical strength, better rigidity, and can withstand greater pressure and tension. It is also harder and has better wear resistance.

Heat resistance: G10 also has excellent heat resistance and can be used in high temperature environments, and can withstand higher temperatures in a short period of time.

Chemical resistance: It has good tolerance to a variety of chemical substances, such as acids, alkalis, oils, etc., and is not easily corroded.

Manufacturing process

The manufacturing process of G10 fiberglass epoxy sheet is similar to that of FR-4, which is also made by impregnating glass fiber cloth with epoxy resin and then hot pressing. However, there may be differences in the selection of raw materials and the control of process parameters to meet the higher performance requirements of G10.

Application areas

Electrical insulation: G10 is commonly used in electrical insulation components such as high-voltage switchgear, insulators, and insulating pads to ensure the safe and reliable operation of electrical equipment.

Mechanical parts: Due to its high mechanical strength and wear resistance, G10 can be used to manufacture various mechanical parts such as gears, bearings, washers, etc.

Aerospace: In the field of aerospace, G10 can be used to manufacture aircraft structural parts and insulation components to meet its requirements for high performance and lightweight materials.