The content of silicone resin in the mica belt has a significant impact on performance, which is mainly reflected in the following aspects：


1. Bond strength
The bonding effect of silicone resin on mica paper is to wrap the surface of mica paper by means of impregnation, thereby curing to form a highly crosslinked mesh structure.The content of silicone resin directly affects the strength of this bonding effect.Generally speaking, when the resin content is 7% to 10% of the mica quality, it can not only ensure the bonding strength between the layers, but also maintain the flexibility of the material and meet the needs of the winding process.If the resin content is too low, it may lead to poor adhesion and affect the overall performance of the mica belt; if the resin content is too high, it may cause the mica belt to harden and its flexibility to decrease, which is not conducive to processing and use.


2. Electrical performance
The breakdown strength of the mica belt before curing is more determined by the performance of the resin itself, but the resin content will also have a certain impact on it.The right amount of resin content can ensure that the mica tape has good electrical insulation properties.However, when the resin content is too high, more impurities or defects may be introduced, thereby reducing the breakdown strength of the mica belt.In addition, the resin content will also affect the electrical performance parameters such as the dielectric constant and dielectric loss of the mica belt.


3. Heat resistance
Silicone resin has excellent heat resistance and can maintain stable performance at high temperatures.The resin content in the mica belt also has an important impact on its heat resistance.The right amount of resin content can ensure that the mica belt is not prone to thermal aging or performance attenuation at high temperatures.However, when the resin content is too high, the thermal conductivity of the mica belt may be reduced, causing heat to accumulate inside the mica belt, thereby affecting its heat resistance.


Fourth, the mechanical properties
The resin content will also affect the mechanical properties of the mica belt, such as tensile strength and bending strength.The right amount of resin content can enhance the mechanical strength of the mica belt and improve its tear resistance and bending resistance.However, when the resin content is too high, it may cause the mica belt to become brittle and reduce its mechanical properties.