| 三元乙丙橡胶基吸水膨胀橡胶性能的研究 |
| Study on Properties of EPDM Water Swellable Rubber |
| 投稿时间：2019-09-20 修订日期：2019-09-25 |
| DOI：10.12136/j.issn.1000-890X.2021.05.0351 |
| 中文关键词: 吸水膨胀橡胶 三元乙丙橡胶 白炭黑 石蜡油 吸水树脂 吸水助剂 |
| 英文关键词: water swellable rubber EPDM silica paraffin oil water absorbent resin water absorbent additive |
| 基金项目: |
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| 中文摘要: |
| 研究白炭黑、石蜡油、吸水树脂和吸水助剂ZA用量对三元乙丙橡胶吸水膨胀橡胶性能的影响。结果表明：在使用石蜡油改善胶料加工性能时，需要加入20份以上的白炭黑，否则硫化胶难以吸水；过大的石蜡油用量会减慢硫化胶的吸水速率和减小饱和吸水率，石蜡油用量应不超过50份；吸水树脂用量小于30份时，硫化胶的吸水速率较慢和饱和吸水率较小，吸水树脂用量超过50份时，硫化胶的吸水速率较快，吸水树脂用量越大，硫化胶的饱和吸水率越大，但拉伸强度降低；加入吸水助剂ZA可以加快硫化胶的吸水速率，吸水助剂ZA用量越大，硫化胶的吸水速率越快，加入15份吸水助剂ZA可增大硫化胶的饱和吸水率，吸水助剂ZA用量超过15份后硫化胶的饱和吸水率变化很小。 |
| 英文摘要: |
| The effects of the amount of silica，paraffin oil，water-absorbing resin and water-absorbing
additive ZA on the properties of ethylene propylene rubber（EPDM） water swellable rubber were studied. The
results showed that，when paraffin oil was used to improve the processing properties of the compound，it was
necessary to add more than 20 phr of silica，otherwise the vulcanizate was difficult to absorb water. Excessive
amount of paraffin oil would reduce the water absorption rate and saturated water absorption ratio of the
vulcanizates，so the amount of paraffin oil should not exceed 50 phr. When the amount of water-absorbing
resin was less than 30 phr，the water absorption rate and saturated water absorption ratio of the vulcanizates
were reduced. When the amount of water-absorbing resin was more than 50 phr，the water absorption rate of
the vulcanizates was improved. The higher the amount of water absorbent resin was，the larger the saturated
water absorption ratio of the vulcanizate was，but the tensile strength was reduced at the same time. The
addition of water absorbent additive ZA could speed up the water absorption rate of the vulcanizate. The
higher the amount of water absorbent additive ZA was，the faster the water absorption rate of the vulcanizate
was. The addition of 15 phr water absorbent additive ZA could improve the saturated water absorption rate
of the vulcanizate，and when the amount of ZA exceeded 15 phr，the saturated water absorption ratio of the
vulcanizate changed little. |
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