| 甲基丙烯酸羟乙酯接枝天然橡胶对白炭黑/天然橡胶复合材料性能的影响 |
| Effects of HEMA Grafted NR on Properties of Silica/NR Composites |
| 投稿时间：2021-12-07 修订日期：2021-12-07 |
| DOI：10.12136/j.issn.1000-890X.2022.08.0597 |
| 中文关键词: 天然橡胶 甲基丙烯酸羟乙酯 接枝 白炭黑 复合材料 拉伸强度 压缩疲劳生热 |
| 英文关键词: NR HEMA grafting silica composite tensile strength compression fatigue heat build-up |
| 基金项目:广东天然橡胶加工重点实验室资助（2019B121203004）；中国热带农业科学院基本科研业务费专项资金（1630122021005） |
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| 中文摘要: |
| 研究甲基丙烯酸羟乙酯（HEMA）接枝天然橡胶（NR）（NR-g-HEMA）接枝率和用量对白炭黑/NR复合材料性能的影响。结果表明：与未加入NR-g-HEMA的白炭黑/NR复合材料相比，加入NR-g-HEMA的白炭黑/NR复合材料的硫化速度、交联程度、邵尔A型硬度、定伸应力和撕裂强度增大，压缩疲劳生热明显降低；当NR-g-HEMA接枝率为10%和用量为10份时，白炭黑/NR复合材料的拉伸强度最大，压缩疲劳生热最低；NR-g-HEMA与NR相容性较好，加入NR-gHEMA的白炭黑/NR复合材料中白炭黑在橡胶相中分散更均匀，两者具有更强的界面结合效果。 |
| 英文摘要: |
| The effects of graft ratio and amount of 2-hydroxyethyl methacrylate （HEMA） grafted
natural rubber （NR）（NR-g-HEMA） on the properties of silica/NR composites were investigated. The
results showed that，compared with the silica/NR composites without NR-g-HEMA，the vulcanization rate，
cross-link degree，Shore A hardness，modulus and tear strength of the silica/NR composites with NR-g-
HEMA increased，and the compression fatigue temperature rise decreased significantly. When NR-g-HEMA
grafting rate was 10% and amount was 10 phr，the tensile strength of silica/NR composites was the largest，
and the compression fatigue temperature rise was the lowest. NR-g-HEMA had good compatibility with NR，
silica was more uniformly dispersed in the rubber phase with the addition of NR-g-HEMA，and the silica and
rubber had stronger interfacial bonding effect. |
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