reversion 长时间热老化所引起的硫化橡胶模量和拉伸强度的下降。 发生返原的原因可能是网状结构被破坏而形成一些环状结构。 天然橡胶或合成聚异戊二烯当硫化时间过长或温度超过150℃时，时常会发生返原现象。
研究了硫化返原对NR硫化胶的结构和性能的影响。
The effect of the reversion on the structure and properties of NR vulcanizate was investigated.
研究表明，与传统炭黑增强样品相比，碳纳米管在橡胶中的混入速度快，温升幅度小，混炼胶的硫化返原现象减轻。
The results showed that the nanotubes mixed rapidly into the rubber with little temperature increase during the mixing. The curing reversion of rubber composites was also reduced.
利用傅立叶转换红外光谱法原位跟踪NR传统硫黄硫化体系的硫化过程，研究新型抗硫化返原剂z - 500对NR胶料硫化过程的影响。
The vulcanization course of NR with traditional sulfur curing system was tracked in situ by FTIR and the effect of the new anti-reversion agent Z-500 on the vulcanization of NR was investigated.
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