1. Development trend of rubber seals

Special engineering elastomers replace low-performance oil-resistant rubber, low-friction modification of rubber materials, extreme modification of rubber, solid and liquid elastomers that can be injected

2. The application of engineering plastics is becoming more and more important

Polytetrafluoroethylene (PTFE) has excellent low friction characteristics, and its application has been quite extensive and mature. Adding PTFE composite materials to engineering plastics with better mechanical strength can give full play to the advantages of rubber seals of the two materials. Such as POM, PPS, etc.

3. High performance of polyurethane materials

General polyurethane materials can only be used for a long time below 80°C. Parker polyurethane can withstand 120°C after high temperature modification, and can withstand 145°C in a short time, and has excellent compression set performance.

Use a self-lubricating modified fluid (including MoS2, etc.) to infiltrate the PU material to reduce its friction coefficient to promote the application of PU in pneumatic and high-speed sealing.

With the enhancement of the concept of environmental protection, the number of seals used under the condition of aqueous medium is increasing. It is necessary to substantially improve the hydrolysis resistance of PU materials from the material structure.

4. Further research and application of engineering ceramic sealing (including polymer)

Engineering ceramics have excellent chemical resistance and temperature resistance. With the development of sealing technology of rubber seals, they will have certain application prospects in sealing components. Especially after engineering ceramics are modified by polymers (the so-called "polymer ceramics"), the elasticity and toughness have been improved.

5. Modification of traditional sealing materials by nanotechnology

After nano-modification of the rubber seal material, the comprehensive mechanical properties, resistance to thermal oxygen and ultraviolet ray aging, electrical properties, and flame retardant properties will be greatly improved. For example, nano-zinc oxide can greatly improve the high-speed wear resistance and aging performance of rubber, and can increase the flexural resistance by 5 times, and the dosage is only 30-50% of ordinary zinc oxide.