In the manufacturing process of medical equipment, rubber seals, as an important sealing material, play a key role. Choosing the right rubber sealing ring can not only ensure the sealing performance of the equipment, but also affect the safety and service life of the equipment. This article will introduce several types of rubber seals commonly used in medical equipment and compare their performance.
1.Nitrile butadiene rubber (NBR)
Nitrile butadiene rubber is widely used as a seal in medical equipment because of its good oil resistance and wear resistance. It has good wear resistance and aging resistance, and is suitable for some occasions that need long-term use. In addition, nitrile butadiene rubber has a lower cost and is the preferred choice of many medical device manufacturers.
2. Fluorine Rubber (FKM)
Fluororubbers are known for their excellent high temperature resistance and excellent chemical stability. In medical equipment, especially in the case of high temperatures and frequent contact with chemicals, fluororubber seals can provide a reliable sealing effect. However, the cost of fluororubbers is relatively high and needs to be considered according to specific application scenarios.
3. Ethylene Propylene rubber (EPDM)
Ethylene propylene rubber is widely used in the manufacture of sealing rings in medical equipment because of its excellent weather resistance and anti-aging properties. It is able to maintain good elasticity and sealing performance over a wide temperature range, which is especially suitable for equipment requiring long-term outdoor use or requiring frequent cleaning.
Performance comparison:
Durability and aging resistance: Nitrile and ethylene propylene rubber perform well in aging resistance, while fluorine rubber is more durable in high temperature and chemical environments.
Chemical resistance: fluorine rubber has the best chemical resistance in strong acid and alkali environment, followed by nitrile rubber, and ethylene propylene rubber is weak.
Temperature resistance: Fluorine rubber is able to maintain elasticity over a wider temperature range, while nitrile rubber and ethylene propylene rubber have relatively low temperature resistance.
In summary, the selection of the appropriate type of rubber seal should be considered according to the use of the specific medical equipment environment and requirements. Different rubber materials have their own unique advantages and application scenarios, in order to ensure the safe and reliable operation of equipment, but also need to consider the cost and manufacturing process factors. I hope this article will be helpful to you when choosing rubber seals for medical equipment.