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Correlation between migration behaviors of antiozonants and temperature

机译:抗臭氧剂迁移行为与温度的相关性

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摘要

Migration behaviors of antiozonants depending on temperature were stud-ied using a carbon black-filled NR vulcanizate containing N-phenyl-N’-isopropyl-p-phenylenediamine (IPPD) and N-phenyl-N’-(1,3-dimethylbutyl)-p-phenylenedialfline (HPPD) as antiozonants. The experimental temperatures were 100, 90, 80, and 70’C. Migration rates of them increased steeply by increasing the temperature. The correla-tion between the migration rates and the temperature was investigated using the half (t112)- and quarter (t114)-lifetimes of the migrants remaining in the vulcanizate after the migration. The plot of log t versus lIT was well fitted by the linear equation: The correlation coefficients were higher than 0.995. It was found that the migration behav-ior and temperature had a correlation of log t bIT + c, where t and T are the migration time and temperature, b is EaIR, and c is the constant. The activation energies for the migration were 36.48 and 37.93 kJ/mol for IPPD and HPPD, respectively.
机译:使用包含N-苯基-N'-异丙基-对苯二胺(IPPD)和N-苯基-N'-(1,3-二甲基丁基)的炭黑填充NR硫化橡胶研究了抗臭氧剂随温度的迁移行为-对苯二酚(HPPD)作为抗臭氧剂。实验温度为100、90、80和70'C。随着温度的升高,它们的迁移速率急剧增加。使用迁移后仍留在硫化橡胶中的迁移者的半衰期(t112)和四分之一(t114)寿命研究迁移速率与温度之间的相关性。 log t与lIT的关系图通过线性方程很好地拟合:相关系数高于0.995。发现迁移行为和温度具有log t bIT + c的相关性,其中t和T是迁移时间和温度,b是EaIR,c是常数。对于IPPD和HPPD,迁移的活化能分别为36.48和37.93kJ / mol。

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