| 原位生成PNaAA/EPDM吸水膨胀橡胶的吸水膨胀性能研究 |
| Water-swelling property of in-situ formed PNaAA/EPDM |
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| DOI： |
| 中文关键词: EPDM 聚丙烯酸钠 吸水膨胀橡胶 吸水膨胀性能 原位生成法 |
| 英文关键词: EPDM polymerized sodium acrylate water-swelling property |
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| 中文摘要: |
| 采用原位生成法制备聚丙烯酸钠（PNaAA）/EPDM吸水膨胀橡胶，研究其吸水膨胀性能的影响因素。结果表明，过氧化二异丙苯用量增大，硫化胶的吸水膨胀性能降低；NaAA理论生成量增大，硫化胶的吸水膨胀性能提高；氢氧化钠/AA摩尔比为1～1.2时，硫化胶的吸水膨胀性能较好；水溶液温度高，硫化胶的吸水膨胀率较大；水溶液中Na+含量越大，硫化胶（尤其是NaAA理论生成量大时）的吸水膨胀率越小。 |
| 英文摘要: |
| The effective factors on the water-swelling property of in-situ formed polymerized sodium acrylate (PNaAA)/EPDM were investigated.The results showed that the water-swelling property of vulcanizate decreased as the additional level of DCP increased；the water-swelling property improved as the theoretical yield of PNaAA increased；the water swelling property of vulcanizate was better when the mole ratio of sodium hydroxide/AA was 1～1.2；the higher temperature of water solution，the greater water swelling ratio of vulcanizate；and the higher Na+ content in water solution，the lower water swelling ratio of vulcanizate. |
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