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Thread: liquid question

  1. #1 liquid question 
    New Member
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    Oct 2006
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    Hello, I am new here and I have a question thats bugging me...

    What liquid thickens as its heated and thins as its cooled?

    OR another way of putting it; what liquid becomes more viscous when heated and less viscous when cooled?

    I questioned oil, but thats not it. I also found that clutch fluid does this. But is there anything else?

    Quote Originally Posted by Wikipedia
    There are other clutches found in a car. For example, the radiator fan may have a clutch that is heat-activated. This is an electrorheological clutch, drive and driven members are selectively engaged by the application of a voltage to an electroheological fluid (ER). When the temperature is low, the fluid is thin and so the clutch slips. When the temperature is high, the fluid thickens, causing the fan to spin.
    Thanks in advance


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  3. #2  
    Forum Freshman César's Avatar
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    That behavior is very very unusual but exists. For example,
    in cationic surfactants with an enucyl tail (C22, monounsaturated) mixed with sodium hydroxinaphtalene carboxylate.

    Source

    Best regards,

    César


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  4. #3  
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    Thanks!! Nice find. Do you think there could be anything else?
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