| 石油树脂种类对天然橡胶/丁腈橡胶/功能性聚丁二烯共混胶性能的影响 |
| Effect of Petroleum Resin Types on Properties of NR/NBR/PB-3000 Blends |
| 投稿时间：2023-06-03 修订日期：2023-06-03 |
| DOI：10.12136/j.issn.1000-890X.2025.08.0591 |
| 中文关键词: 石油树脂 天然橡胶 丁腈橡胶 功能性聚丁二烯 阻尼性能 |
| 英文关键词: petroleum resin NR NBR functional polybutadiene damping property |
| 基金项目: |
|
| 摘要点击次数: 631 |
| 全文下载次数: 297 |
| 中文摘要: |
| 研究石油树脂种类[C5石油树脂、C9石油树脂和C5/C9共聚石油树脂]对天然橡胶（NR）/丁腈橡胶（NBR）/功能性聚丁二烯[粉末状马来酸酐接枝聚丁二烯（PB-3000）]共混胶性能的影响。结果表明：石油树脂能够使共混胶的硫化速率和交联密度减小，加工性能改善；与未添加石油树脂的共混胶胶相比，添加石油树脂的共混胶的硬度和定伸应力减小，拉断伸长率增大，拉伸强度变化不大；石油树脂种类对共混胶的硬度、定伸应力和拉断伸长率的影响差别明显，对拉伸强度的影响差别不大；添加石油树脂的共混胶的剪切模量和水平等效刚度减小，阻尼性能提高；随着石油树脂中苯环含量的增大，共混胶的定伸应力减小，拉断伸长率增大，剪切模量和水平等效刚度减幅增大，但石油树脂种类对共混胶的阻尼性能的影响差别不大。 |
| 英文摘要: |
| The effect of petroleum resin types [C5 petroleum resin，C9 petroleum resin and C5/C9 copolymer petroleum resin] on the properties of natural rubber（NR）/nitrile rubber（NBR）/functional polybutadiene（Powdered maleic anhydride grafted polybutadiene）（PB-3000） blends was investigated.The results showed that petroleum resin could reduce the vulcanization rate and crosslinking density of the blend，and improve the processing performance.Compared with the blend without petroleum resin，the hardness and tensile stress of the blend with petroleum resin decreased，the elongation at break increased，and the tensile strength changed little.The influence of petroleum resin types on the hardnesses，tensile stresses and elongations at break of the blend varied significantly，while the influence on tensile strengths was not significantly different.The shear modulus and horizontal equivalent stiffness of the blend with petroleum resin decreased，and the damping performance was improved.As the benzene ring content in petroleum resin increased，the tensile stress at a given elongation of the blend decreased，the elongation at break increased，the reduction rate of the shear modulus and horizontal equivalent stiffness increased，but the influence of petroleum resin types on the damping performance of the blend was not significantly different. |
|
|
查看全文
查看/发表评论 下载PDF阅读器 |
| 关闭 |
