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gelation time

   Also found in: Dictionary/thesaurus, Medical, Legal, Wikipedia 0.01 sec.
gelation time [jə′lā·shən ‚tīm]
(chemical engineering)
In the manufacture of a thermosetting resin, the time interval between the addition of the catalyst into a liquid adhesive system and the formation of a gel.


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57 that represents the instance of gelation, whereas at a lower temperature of 180 [degree] C the gelation time is considerably longer, around 6 min and at 220 [degree] C it takes only a few seconds to reach the gel point.
The gelation times of the gels prepared were in the range of one to four hours depending on the composition, but the gel was always left for 48 h to enable the curing process to take place.
A gelation time of around 90 seconds, after which the sample will cease to flow like a liquid, is easily identified from the graph above.
 
 
 
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