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[Chemical Knowledge]：The difference between mixed alcohol and glycol antifreeze

Read： 1128 Time：15months ago Source：Transform the World with Simplicity

Blends and glycols are two common antifreeze components that play an important role in protecting mechanical equipment such as vehicle engines and heating systems from cold weather in winter. However, there are some differences between the mixed alcohols and glycols in terms of chemical properties, performance and scope of application.

alcohol is a mixture of ethylene glycol and polypropylene glycol, which can prevent the cooling system from freezing at lower temperatures. The mixed alcohol has the characteristics of rust prevention, corrosion resistance and lubrication, which makes it widely used in the fields of automobile and engine. In addition, the mixed alcohol also has good thermal stability and high temperature resistance, and can maintain stable frost resistance under high temperature conditions.

ethylene glycol is one of the common antifreeze components, mainly composed of ethylene glycol and water. Ethylene glycol has excellent antifreeze performance and heat transfer performance, can maintain liquid in extremely cold environment, effectively prevent the cooling system from freezing. In addition, ethylene glycol also has good lubricity and corrosion resistance, and has a good protective effect on the internal metal parts of the cooling system. The difference between

mixed alcohol and glycol lies in its composition ratio and performance characteristics. The proportion of ethylene glycol and polypropylene glycol in the mixed alcohol can be adjusted according to specific needs to achieve the best anti-freezing effect. However, ethylene glycol is mixed with ethylene glycol and water in a certain proportion. If the proportion is too high, the anti-freezing ability will be reduced, while if the proportion is too low, the heat transfer performance will be reduced.

in the choice of antifreeze, according to the use of the environment and requirements to choose the appropriate antifreeze. Generally speaking, for areas with relatively cold temperatures, ethylene glycol antifreeze is a better choice because it has better frost resistance. In some areas with higher temperatures, mixed alcohol antifreeze is more suitable because it has better high temperature resistance.

In short, mixed alcohols and glycols are common antifreeze components, and they are different in terms of antifreeze ability, high temperature resistance and scope of use. When choosing antifreeze, the antifreeze with the appropriate composition ratio should be selected according to the specific environment and needs to ensure the normal operation and service life of the equipment.

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