The sealing glue of automotive sensor is an important part of protecting the sensor, and it plays a vital role in the stability and reliability of automotive electronic components. The following will introduce three commonly used automotive sensor filling glue and their characteristics.

 The first filling glue: modified epoxy resin
The modification here, epoxy resin is a kind of high strength modified colloid after curing. It is a new type of sensor for sealing glue material. It has excellent heat resistance and chemical corrosion resistance, and can protect the sensor in a harsh working environment. This modified resin also has, comparable to the high strength and high adhesion of the structural adhesive, easy to resist the impact of external forces, to ensure the stable connection. In addition, the modified resin has good fluidity, easy to perfusion filling, can completely cover the internal cavity of the sensor, and improve the sealing effect. This modified epoxy sealing adhesive needs to be mixed with AB components and then sealed, and then it can be quickly cured after low temperature heating.

 The second kind of sealing glue: modified rubber type
Modified rubber is another material commonly used to seal automotive sensors. The modified rubber has excellent heat resistance and electrical resistance, and can protect the stability of the sensor in the high temperature and high pressure working environment. The modified rubber has good flexibility and elasticity, which can buffer the shock and vibration of the sensor, and improve the seismic performance of the sensor. In addition, this modified rubber has good weather resistance and corrosion resistance, and can adapt to a variety of complex working environments. It can also provide a certain thermal conductivity, help the sensor fast heat dissipation. It is also very simple to use, AB components after the mix, natural curing can be.

 The third type of glue: silicone
Silicone is a kind of glue commonly used in sealing. It has excellent high temperature resistance and chemical corrosion resistance, and can protect the stability of electronic products under extreme working conditions. Silicone gel has high flexibility and fatigue resistance, and can withstand a wide range of temperature changes and mechanical stresses. Silicone gel also has good insulation performance and arc resistance performance, which can effectively prevent the sensor from electrical interference. Compared with the previous two sealing schemes, the strength of silica gel is low and cannot adapt to the requirements of high strength and high pressure air tightness.

 In conclusion, selecting the appropriate sealing adhesive material according to the specific situation of the sensor can improve the reliability and stability of the automobile sensor and prolong the service life of the sensor. In the future automotive development, the research and application of sealing adhesive materials will continue to play an important role.