| 碳纳米管补强丁苯橡胶/聚氯乙烯共混物的研究 |
| Study on SBR/PVC Blends Reinforced by Carbon Nanotubes |
| 投稿时间：2021-01-22 修订日期：2021-02-18 |
| DOI：10.12136/j.issn.1000-890X.2021.11.0838 |
| 中文关键词: 碳纳米管 丁苯橡胶 聚氯乙烯 共混物 储能模量 损耗模量 损耗因子 |
| 英文关键词: carbon nanotube SBR PVC blend storage modulus loss modulus loss factor |
| 基金项目:国家自然科学基金资助项目（51972185） |
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| 中文摘要: |
| 研究碳纳米管用量对丁苯橡胶（SBR）/聚氯乙烯（PVC）共混物性能的影响。结果表明：碳纳米管微观呈长条状聚集态，聚集体由大量碳纳米管纠缠而成，碳纳米管直径为10～35 nm；随着碳纳米管用量的增大，SBR/PVC共混物的FL，Fmax和Fmax－FL逐渐增大，t10和t90呈缩短趋势，硬度、定伸应力、拉伸强度和撕裂强度逐渐增大，拉断伸长率逐渐减小，当碳纳米管用量为10份时，SBR/PVC共混物的物理性能较优；SBR/PVC共混物的储能模量和损耗模量随着应变的增大而减小，随着碳纳米管用量的增大而增大，损耗因子随着应变的增大而增大，随着碳纳米管用量的增大而呈减小趋势。 |
| 英文摘要: |
| The effect of the dosage of carbon nanotubes on the properties of styrene butadiene rubber
（SBR）/polyvinyl chloride（PVC） blends was studied. The results presented that，carbon nanotubes showed
long strip-shaped aggregation state in the micro level，the aggregates were formed by entanglement of a
large number of carbon nanotubes，and the diameters of carbon nanotubes were about 10～35 nm. With the
increase of the dosage of carbon nanotubes，the FL，Fmax and Fmax － FL of SBR/PVC blends were gradually
increased，the t10 and t90 were gradually shortened，the hardness，modulus，tensile strength and tear strength
increased gradually，and the elongation at break decreased. When the dosage of carbon nanotubes was 10
phr，the physical properties of SBR/PVC blends were better. The storage modulus and loss modulus of SBR/
PVC blends decreased with the increase of the strain and increased with the increase of the amount of carbon
nanotubes，and the loss factor increased with the increase of the strain and showed a decreasing trend with the
increase of the dosage of carbon nanotubes. |
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