| 纳米微珠二氧化硅用量对空气弹簧用天然橡胶胶料性能的影响 |
| Effect of Nanobead Silica Amount on Properties of NR Compound for Air Spring |
| 投稿时间：2021-09-17 修订日期：2021-09-17 |
| DOI：10.12136/j.issn.1000-890X.2023.02.0130 |
| 中文关键词: 纳米微珠二氧化硅 空气弹簧 天然橡胶 硫化特性 屈挠性能 疲劳性能 |
| 英文关键词: nanobead silica air spring NR vulcanization characteristics flexure resistance fatigue resistance |
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| 中文摘要: |
| 将纳米微珠二氧化硅添加至空气弹簧用天然橡胶（NR）胶料中，研究纳米二氧化硅用量对NR胶料的加工性能和物理性能以及空气弹簧疲劳性能的影响。结果表明：随着纳米微珠二氧化硅用量的增大，NR胶料的硫化特性和门尼粘度未发生明显变化，NR硫化胶的邵尔A型硬度先减小后增大，300%定伸应力无明显变化，拉伸强度和拉断伸长率呈减小趋势；当纳米微珠二氧化硅用量为10～15份时，NR硫化胶的耐屈挠性能较佳；在空气弹簧用NR胶料中加入10份纳米微珠二氧化硅能够有效地提高空气弹簧的耐常温疲劳性能和耐高温疲劳性能。 |
| 英文摘要: |
| The nanobead silica was added to the natural rubber（NR） compound for the air spring，and
the processing properties and physical properties of the NR compound and the fatigue resistance of the air
spring were studied. The results showed that，with the increase of nanobead silica amount，the vulcanization
characteristics and Mooney viscosity of the NR compound did not change significantly，the Shore A hardness
of the NR vulcanizate decreased first and then increased，the tensile stress at 300% elongation did not change
significantly，and the tensile strength and elongation at break both showed a decreasing trend. It was found
that when the nanobead silica amount was 10～15 phr，the flexure resistance of the NR vulcanizate was better.
With the addition of 10 phr nanobead silica in the NR compound for the air spring，the fatigue resistances of
the air spring at room temperature and at high temperature were effectively improved. |
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