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| 密炼工艺对高用量纤维填充三元乙丙橡胶绝热层性能的影响 |
| Effect of Internal Mixing Process on Properties of EPDM Insulation Layer Filled with Large Amount Fiber |
| Received:January 11, 2023 Revised:February 17, 2023 |
| DOI：10.12137/j.issn.2095-5448.2023.07.0349 |
| 中文关键词: 纤维；绝热层；密炼工艺；投料顺序；转子转速；混炼时间；物理性能；耐烧蚀性能 |
| 英文关键词: fiber；insulation layer；internal mixing process；feeding sequence；rotor speed；mixing time；physical performance；ablation resistance |
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| Author Name | Affiliation | E-mail | | LI Bin* | Hubei Institute of Aerospace Chemotechnology(HIACT) | lzan_003458@163.com | | ZHANG Jinfeng | Hubei Institute of Aerospace Chemotechnology(HIACT) | | | ZHENG Haijun | Hubei Institute of Aerospace Chemotechnology(HIACT) | | | HU Hongwei | Hubei Institute of Aerospace Chemotechnology(HIACT) | | | YAN Weiqing | Hubei Institute of Aerospace Chemotechnology(HIACT) | | | LIU Xiangwen | Hubei Institute of Aerospace Chemotechnology(HIACT) | |
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| 中文摘要: |
| 研究密炼工艺对高用量纤维填充三元乙丙橡胶（EPDM）绝热层性能的影响。结果表明，高用量纤维填充EPDM绝热层的最优密炼工艺为，设置转子转速为50 r·min-1，投入EPDM塑炼2 min后加入纤维A混炼2 min，然后调整转子转速为30 r·min-1，加入纤维B、偶联剂A和1/3白炭黑混炼5 min，加入其他助剂混炼5 min。采用该密炼工艺的高用量纤维填充EPDM绝热层的物理性能和耐烧蚀性能最好，且最
稳定。 |
| 英文摘要: |
| The effect of internal mixing process on the properties of high dosage fiber filled EPDM insulation layer was studied.The results showed that the optimal internal mixing process of high dosage fiber filled EPDM insulation layer was to first set the rotor speed of the internal mixer at 50 r·min-1，put EPDM into plastic mixing for 2 min，and then add fiber A to mix for 2 min，adjust the rotor speed to 30 r·min-1，add fiber B，couple agent A and 1/3 silica to mix for 5 min，and finally add other additives to mix for 5 min.The high dosage fiber filled EPDM insulation layer with this optimal internal mixing process had the best and stable physical properties，ablation resistance. |
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