大连海事大学学报 >
2018 , Vol. 44 >Issue 2: 126 - 130
DOI: https://doi.org/10.16411/j.cnki.issn1006-7736.2018.02.019
液体氟橡胶的动力黏度
收稿日期: 2017-09-28
修回日期: 2017-10-24
网络出版日期: 2017-11-10
基金资助
国家国际科技合作专项资助项目(2015DFR40500)．
Dynamic viscosities of liquid fluoroelastomers
Received date: 2017-09-28
Revised date: 2017-10-24
Online published: 2017-11-10
李东翰 , 廖明义 . 液体氟橡胶的动力黏度[J]. 大连海事大学学报, 2018 , 44(2) : 126 -130 . DOI: 10.16411/j.cnki.issn1006-7736.2018.02.019
The liquid carboxylterminated fluoroelastomer prepared by the oxidative degradation method and the liquid hydroxylterminated fluoroelastomer synthesized by the functionalized method were chosen as studying objects, and the multiple factors influencing the dynamic viscosities of fluoroelastomers were systematically studied by DV2T viscometer. Results show that the monomer compositions of liquid fluoroelastomers have the greatest influence on the dynamic viscosities, and the molecular weights have a greater influence on the dynamic viscosities, and the molecular weight distribution and the type of end groups have little effect on the dynamic viscosities. For the temperature between 30 ℃ ~70 ℃, the dynamic viscosity decreases with the increase of temperature, and when the temperature is 30 ℃~50 ℃, the dynamic viscosity decreases greatly, and when the temperature is above 50 ℃, the dynamic viscosity tends to be stable, which is about 15 Pa·s.
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