Jiangsu Luqin New Material Sharing: How to Choose High Temperature Adhesive Tape Suitable for New Energy Field?

Choosing a high-temperature adhesive tape suitable for the new energy field requires comprehensive consideration of many factors. The following are some suggestions for Jiangsu Luqin new materials:

Considering temperature resistance

Clarify the working temperature range: the battery pack, motor and other components of new energy vehicles will generate a lot of heat during operation and charging, and the temperatures in different parts are different. For example, the internal temperature of the battery pack may be between 50℃ and 80℃, while the temperature near the motor or electronic control system may be higher, reaching more than 100℃. It is necessary to select the high-temperature adhesive tape according to the temperature requirements of the specific use parts to ensure that it can work stably at the corresponding temperature for a long time without problems such as deformation, melting and viscosity reduction.

Pay attention to instantaneous high temperature resistance: In addition to long-term working temperature, instantaneous high temperature resistance should also be considered. For example, when a vehicle has a short circuit and other faults, the local temperature may rise sharply in a short time. At this time, the high-temperature adhesive tape should be able to withstand the instantaneous high-temperature impact to ensure the safety of equipment and personnel. For example, polyimide high-temperature adhesive tape can withstand the high temperature of 300℃ in a short time, and can better deal with such emergencies.

Considering insulation performance

Electrical insulation requirements: The electrical system of new energy equipment usually works in high voltage and high current environment, which requires extremely high insulation performance to prevent short circuit and leakage accidents. High-temperature tapes with excellent electrical insulation properties, such as polyimide high-temperature tapes and Teflon high-temperature tapes, should be selected, which have high insulation resistance and can effectively block the current and ensure the safe operation of the electrical system.

Insulation stability: Environmental factors such as high temperature and high humidity may affect the performance of insulation materials. It is necessary to choose high-temperature adhesive tapes with stable insulation performance under different environmental conditions to adapt to the complex use environment of new energy vehicles and ensure electrical insulation for a long time.

Considering adhesive properties

Adhesion to different materials: New energy equipment involves the connection and fixation of a variety of materials, such as metal, plastic, rubber, etc. High-temperature adhesive tape needs good adhesion to these materials to ensure the firm fixation of components. For example, EPT tape of Crown New Material has strong adhesion to different materials, and can achieve firm adhesion between batteries.

Long-term viscosity maintenance: During long-term use, the viscosity of high-temperature adhesive tape should be kept stable, and it will not be weakened or invalid due to temperature change, time lapse and other factors. Some high-quality silicone pressure-sensitive adhesive tapes have excellent long-term adhesion retention and can meet the requirements of long-term operation of new energy equipment.

Considering chemical stability

Corrosion resistance: New energy equipment may come into contact with various chemicals, such as electrolyte and coolant, etc. The high-temperature adhesive tape should have good corrosion resistance and will not be eroded by these chemicals, resulting in performance degradation. For example, some fluororubber high-temperature tapes have good tolerance to chemicals such as electrolyte and are suitable for lithium batteries and other related parts.

Anti-aging: Long-term exposure to high temperature, ultraviolet and other environmental conditions, materials are prone to aging. Choosing high-temperature adhesive tape with good anti-aging performance can prolong its service life, reduce replacement frequency and reduce maintenance cost. High-temperature adhesive tape made of acrylate adhesive usually has good aging resistance and weather resistance.

Considering mechanical properties

Strength and toughness: The high-temperature adhesive tape needs to have certain strength and toughness to withstand mechanical stress such as vibration and impact during the operation of the equipment and prevent the adhesive tape from breaking or falling off. For example, fiber tape has high tensile strength and deformation resistance and can remain stable in complex mechanical environment.

Elasticity and follow-up: For some parts that need to maintain good sealing and buffering performance at different temperatures, the high-temperature adhesive tape should have appropriate elasticity and follow-up, which can compensate the dimensional changes of components caused by thermal expansion and cold contraction, and ensure the sealing effect and connection reliability. EPT tape, like Crown new material, has good follow-up, which can compensate the influence of bonded parts due to thermal expansion and cold contraction.

Consider other factors

Thickness and size: according to the specific use scene and component size, choose the appropriate thickness and size of high-temperature adhesive tape. Thinner adhesive tape is suitable for places with limited space or strict thickness requirements, while thicker adhesive tape can provide better cushioning and insulation performance; At the same time, ensure that the width and length of the tape can meet the requirements of covering and fixing.

Environmental protection: With the enhancement of environmental awareness, it is more and more important to choose environmentally friendly high-temperature adhesive tape. Some halogen-free, low volatile and recyclable high-temperature adhesive tapes are more in line with the requirements of sustainable development in the field of new energy.

Cost factor: The prices of different types and brands of high-temperature adhesive tapes vary greatly. Under the premise of meeting the performance requirements, we should comprehensively consider the cost factor and choose products with high cost performance ratio to reduce the production cost.