Sometimes we always receive some requirements from customers in the process of market sales, such as adding glass fiber, single-sided adhesive, double-sided adhesive, single-sided PI film, graphene and so on. In fact, the above requirements are nothing more than to provide customers with a more convenient product experience, better product quality and ultimately meet customer application requirements. Some time ago, a customer asked us about a thermal pad with enhanced tensile strength, but the customer did not know the name of this tensile strength-enhancing material. We told the customer to add glass on the basis of the thermal pads. Fiber cloth can increase the tear strength.
The silicone thermal pads with glass fiber is based on glass fiber and silica gel, and contains a compound of silicone resin, boron nitride and glass fiber. The thermal pads after using glass fiber has good toughness and firmness, and enhances functional effects such as high shear strength, puncture resistance and tear resistance. And it does not affect the multi-style thermal properties of the thermally conductive material itself, and is widely suitable for the application of any electronic and electrical equipment. The most widely used thermal conductive material is glass fiber cloth.
Generally speaking, when customers choose thermal silicone pads with glass fiber, they care about the overall tear strength of the material and the performance of installation and operation. This is especially suitable for products with low thermal conductivity, very soft hardness, and very long dimensions. However, the thermal pads with glass fiber also has its own shortcomings. Adding glass fiber means indirectly increasing the thermal resistance of the material and increasing the resistance in the process of heat transfer. Therefore, in general, we do not recommend customers to add glass fiber to the thermal pads; and it indirectly increases the cost of materials.
So, what is the difference between the thermal pads with glass fiber and the ordinary thermal pads?
Under the conditions of the same thermal conductivity, the tensile strength of the thermal pads with glass fiber is different from that of the ordinary thermal pads, and the tensile strength of the thermal pads with glass fiber is higher and stronger. The greater the tear strength, the less likely it is to be broken.
In the case of the same product thickness, the thermal resistance of the thermal pads with glass fiber is larger than that of the ordinary thermal pads, and the greater the resistance of heat during the transfer process, the less conducive to heat conduction and heat dissipation.
The cost of the thermal pad with glass fiber is higher than that of the ordinary thermal pads, and the specific difference needs to be evaluated and calculated according to the size and thickness of the product.
The thermal pad is a soft and elastic thermally conductive gasket. Its toughness is not high, and it is easy to find tearing under the condition of external force. The easier it is to be affected by external forces; it is easy to deform and be damaged by manpower during lamination. After glass fiber reinforcement, it can improve its toughness, easier to operate and not deformed. Glass fiber has excellent chemical resistance, acid corrosion resistance, etc., so it can improve the stability of the thermal pads.