| 有机小分子杂化聚降冰片烯 形状记忆性能的研究 |
| Shape Memory Performance of Organic Small Molecule Hybrid PNB |
| 投稿时间：2020-03-29 修订日期：2020-04-08 |
| DOI：10.12136/j.issn.1000-890X.2021.01.0003 |
| 中文关键词: 聚降冰片烯 增塑剂 有机小分子 杂化 形状记忆性能 |
| 英文关键词: polynorbornene plasticizer organic small molecule hybrid shape memory performance |
| 基金项目: |
|
| 摘要点击次数: 1203 |
| 全文下载次数: 750 |
| 中文摘要: |
| 以聚降冰片烯（PNB）为研究对象，研究增塑剂（塑分T和环保芳烃油）和有机小分子（微晶蜡、淀粉和碱木质素）对PNB形状记忆性能的影响。结果表明：添加环保芳烃油的PNB玻璃化温度在室温（20 ℃）附近，塑分T对PNB的玻璃化温度影响不大，有利于PNB在室温下的形变固定；在玻璃化温度起始温度下拉伸时，几种填充PNB均出现屈服现象，且呈现硬而韧的应力-应变特征；几种填充PNB均具有优良的传统形状记忆性能，形状固定率在98%以上，形状恢复率在70%以上，其可逆塑性形状记忆性能低于传统形状记忆性能，可逆塑性形状固定率为49%～77%；微晶蜡杂化PNB具有优异的形状记忆性能。 |
| 英文摘要: |
| Polynorbornene（PNB） was used to study the effects of plasticizers[plastic T and treaded distillate aromatic extract（TDAE）] and organic small molecules（microcrystalline wax，starch and alkali lignin） on the shape memory performance of PNB.The results showed that the glass transition temperature of PNB with TDAE was about room temperature（20 ℃），the plastic T had little effect on the glass transition temperature of PNB，which was conducive to the deformation fixation of PNB at room temperature.When stretching at the initial temperature of glass transition temperature，the PNB filled with several kinds of fillers showed yield phenomenon and exhibited the characteristics of hard and tough stress-strain.All of the filled PNB had excellent traditional shape memory performance，its shape fixation rate were more than 98% and shape recovery rate were more than 70%，the reversible plastic shape memory performance of PNB was lower than traditional shape memory performance，and the reversible plastic shape fixation rate was 49%～77%.The microcrystalline wax hybrid PNB had excellent shape memory performance. |
|
|
查看全文
查看/发表评论 下载PDF阅读器 |
| 关闭 |
