橡胶能在低温下冻结吗?

can rubber freeze

橡胶能在低温下冻结吗?

冷空气如何影响橡胶密封件
If you or your company transports or manufactures rubber parts such as seals in a cold environment then you may find the information in this article educational and useful. The importance of understanding how temperature may affect your seal is crucial. If your seal reaches -29 °C or lower temperatures then your seal may not recover. This can lead to the seal expanding and breaking or a leakage. What you might want to know is can rubber freeze?

Can Rubber Freeze?

The technical answer is, no, 橡胶 cannot freeze but it does get hard and brittle. The scientific definition of to freeze involves a phase shift of liquid into solid forming crystals. This phase occurs as a result of the temperature reaching the freezing point of the substance. As rubber polymers cannot form crystalline structures, they do not freeze by definition. However, the physical property changes of rubber in low temperatures may affect the performance of your product.

Can rubber freeze in a low-temperature environment compared to a high-temperature environment?

Rubber experiences changes in properties from the temperature changes. This allows the rubber to become more elastic. Entropy and temperature are the two factors that play a critical role in whether the rubber will be stiff or flexible. If the rubber is presented in a high-temperature environment, then the long chains of polymer shorten cause the rubber to contract. While in a low-temperature environment, rubber can expand. Temperature and entropy are in a correlated relationship. Therefore, the higher the temperature is then the higher the entropy will be. Entropy is the degree of disorder in the system and tells us the possibilities of molecules being arranged. When there is a high entropy, there are fewer ways molecules can arrange themselves making it harder for the molecules to arrange in a straight line. This prevents the rubber from being able to expand due to the chemistry. Altogether, these concepts display the effects on rubber in different temperature environments.  

关于 COi Rubber Products

COi Rubber Products 公司是一家定制塑料产品制造商 模压橡胶 和塑料组件供应商。COi Rubber 公司在工程、设计、合成、原型制作以及塑料 模压橡胶 产品的生产方面拥有超过 23 年的经验。我们的能力包括定制合成、 注塑成型 挤压、 橡胶金属粘接 成型 模压成型、挤压成型 传递模塑、插入成型等。我们为汽车、工业、农业、家用电器、HVAC 等行业提供大规模生产和工程支持,以及更多领域。我们的 中国芜湖 制造工厂已通过 IATF 16949 认证。.    

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