As a key component in equipment such as motors, transformers, sensors, and wireless charging modules, the stability of coils has a significant impact on the performance and lifespan of the entire device. Choosing the appropriate adhesive is particularly important to ensure the fixing effect of the coil and the safe operation of the equipment. This article will provide a detailed introduction to the types, performance requirements, application scenarios, and recommended products of coil fixing adhesives to help you find the best solution.
Common types of adhesive used for coil fixation
According to different application requirements, the commonly used adhesives for coil fixation mainly include epoxy adhesive, organic silicone adhesive, polyurethane adhesive, and acrylic adhesive. These adhesives have their own characteristics and can meet the fixed requirements of different scenarios.
Epoxy adhesive is a type of adhesive known for its high strength and high temperature resistance. Its two-component or single component formula design is suitable for coil fixing applications such as motors and transformers that require high adhesion and insulation performance.
Organic silicone stands out for its excellent flexibility, aging resistance, and resistance to mechanical stress, and is widely used in scenarios that require high resistance to vibration and high and low temperatures.
Polyurethane adhesive combines high flexibility and impact resistance, making it ideal for devices where coils are sensitive to impact and vibration.
Acrylic adhesive has fast curing speed and high bonding strength, making it suitable for applications in fast production lines.
Key performance requirements for coil fixing adhesive
When selecting coil fixing adhesive, multiple performance requirements need to be considered to ensure the stability of the coil during long-term operation. Firstly, adhesive performance is the core indicator, and the adhesive needs to have strong adhesion to substrates such as copper, aluminum, iron cores, plastics, ceramics, etc., and be able to pass the pull-out test. Secondly, mechanical strength and flexibility are particularly important, especially in scenarios with high vibration such as motors and transformers. Colloids need to absorb mechanical stress to avoid coil loosening or breakage. In addition, high and low temperature resistance, electrical insulation performance, and chemical resistance are also important criteria for evaluating adhesives, especially in equipment operating in high temperature, humid, or oily environments. Finally, environmental friendliness cannot be ignored, and low VOC adhesives that comply with certifications such as ROHS and REACH are more popular.
Typical application scenarios of coil fixing adhesive
Coil fixing adhesive has a wide range of application scenarios in various electronic devices. In motors, coils usually need to withstand high-frequency vibrations and heat, and epoxy adhesive is an ideal choice due to its excellent high temperature resistance and high strength performance. The transformer needs to operate for a long time and has high requirements for insulation performance. It is recommended to use high-temperature and anti-aging adhesives. Organic silicone has become the preferred choice in sensor coils due to its excellent flexibility and weather resistance. In wireless charging modules, polyurethane adhesive stands out due to its impact resistance and vibration resistance, providing a stable fixing effect.
Elaplusu recommends products
EP 1767 Epoxy Adhesive
◆ Single component breeding, micro flowing
◆ Heat curing, high TG
Good toughness and impact resistance SIPC 1859 silicone adhesive
Low odor, good adhesion
◆ Seismic buffering
◆ Excellent outdoor aging performance PUR 1603 polyurethane adhesive
◆ High toughness and elasticity
◆ Rapid curing at room temperature for 30 minutes
Strong adhesion to various substrates
label: Elaplus coil fixing adhesive, silicone adhesive, epoxy structural adhesive, coil fixing, polyurethane fixing adhesive
