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PCB Blog - The function of thermal board

PCB Blog

PCB Blog - The function of thermal board

The function of thermal board

2023-11-21
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Author:iPCB

A thermal board is a material used to isolate and transmit heat energy, and its main function is to achieve thermal insulation and insulation. Insulation panels can be used in fields such as building insulation, pipeline insulation, and air conditioning pipeline insulation, effectively reducing heat loss and improving energy utilization efficiency. At the same time, the insulation board can also play a role in noise reduction, fire prevention, waterproofing, antibacterial, and other aspects.


Thermal board.jpg


In PCB terminology, "heat" refers to a special way in which a pad is connected to a flat surface to achieve good electrical contact but poor thermal contact. This is usually achieved by having a semi-circular gap around the copper pad. Imagine creating a circular notch on the copper around the circuit board to isolate it from the plane.


Characteristics of thermal board

1) The thermal board material is a heat-resistant laminated plate that does not contain asbestos.

2) High-strength insulation boards have high compressive and bending strength, making them most suitable for situations that require high strength.

3) High-temperature durable insulation board has low expansion at high temperatures, and its compressive strength is not easy to decrease under high temperatures. It has small deformation under pressure and is stable in size under long-term high temperatures.

4) According to demand, there are standard and hole processing types available for selection.

5) The thermal board product series is rich and meets the needs of different high temperatures and thermal conductivity.

6) Each product does not deform when heated within the usage temperature, has stable dimensions, and excellent insulation effect.


Thermal board is a material used to isolate heat transfer and is commonly used in fields such as architecture, aerospace, and automotive manufacturing. The function of a thermal boardis to reduce the surface temperature of an object, thereby reducing heat transfer and energy loss. There are many types of materials for making thermal boards.


1) Polystyrene board

Polystyrene board is a kind of foam material made from polystyrene. This material has excellent insulation and flame retardancy, making it widely used as building insulation and insulation materials. The advantages of polystyrene boards are light weight, high strength, water resistance, acid and alkali corrosion resistance, and good insulation performance. The disadvantage is that it is flammable and requires the addition of flame retardants for improvement.


2) Glass wool board

Glass wool board is an insulation material made from glass fiber. The advantages of glass wool board are low density, light weight, high softness, good insulation performance, good flame retardancy, corrosion resistance, etc. Glass wool board is mainly used for thermal insulation in fields such as architecture, aerospace, and automotive manufacturing.


3) Polyurethane board

Polyurethane board is an insulation material made from polyurethane as the basic material, with foaming agents and additives added. The advantages of polyurethane board are light weight, high strength, good insulation performance, water resistance, acid and alkali corrosion resistance, flame retardancy, etc. Polyurethane panels are mainly used for thermal insulation in fields such as construction, cold storage, and automotive manufacturing.


4) Aluminum silicate wool board

Aluminum silicate wool board is a thermal insulation material made from aluminum silicate as raw material. The advantages of an aluminum silicate wool board are low density, light weight, good insulation performance, good flame retardancy, and corrosion resistance. Aluminum silicate wool board is mainly used for high-temperature equipment, furnace insulation, building insulation, and other fields.


A thermal board is a type of building material used to isolate and control heat, typically consisting of one or more layers of material in a panel structure. Thermal boards have common building functions such as insulation, fire prevention, and moisture prevention, while also improving the energy utilization efficiency of buildings.