Investigation of reinforcement mechanism of ionic polymer from HZMMA in HNBR matrix and its corrosion behaviour in supercritical CO2 medium
In this study,novel HNBR composites were prepared using HZMMA as raw material.The morphological evolution and structural changes of HZMMA with vulcanization time were investigated by TEM and XRD.It was found that the needle-like or band-like crystals of the reactive reinforcing agent,HZMMA,disappeared rapidly during vulcanization,and the generated ionic polymer clusters were distributed in the HNBR matrix.Compared with the CB composite HNBR,the HZMMA-reinforced HNBR exhibited significant cross-linking self-reinforcement.With improved cross-link density,tensile strength and hardness,the compasites maitained a high elongation at break.In addition,the HZMMA-reinforced HNBR also showed good corrosion resistance in supercritical CO2 media.These results provide a new way to prepare HNBR composites with high resistance to supercritical CO2 corrosion.
万方数据
