|本期目录/Table of Contents|

[1]李佳欢,吴少微,韩利硕,等.杜仲胶/聚乳酸形状记忆热塑性硫化胶的制备及性能[J].合成橡胶工业,2023,1:28-34.
 LI Jia-huan,WU Shao-wei,HAN Li-shuo,et al.Preparation and properties of Eucommia ulmoides gum/polylactic acid shape memory thermoplastic vulcanizates[J].China synthetic rubber industy,2023,1:28-34.
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杜仲胶/聚乳酸形状记忆热塑性硫化胶的制备及性能(PDF)

《合成橡胶工业》[ISSN:1000-1255/CN:62-1036/TQ]

期数:
2023年1期
页码:
28-34
栏目:
出版日期:
2023-01-15

文章信息/Info

Title:
Preparation and properties of Eucommia ulmoides gum/polylactic acid shape memory thermoplastic vulcanizates
文章编号:
1000-1255(2023)01-0028-07
作者:
李佳欢吴少微韩利硕李东翰李 龙康海澜?鄢方庆红
沈阳化工大学 材料科学与工程学院/辽宁省橡胶弹性体重点实验室,沈阳 110142
Author(s):
LI Jia-huan WU Shao-wei HAN Li-shuo LI Dong-han LI Long KANG Hai-lan FANG Qing-hong
College of Materials Science and Engineering/Key Laboratory for Rubber Elastomer of Liaoning Province, Shenyang University of Chemical Technology, Shenyang 110142, China
关键词:
杜仲胶聚乳酸动态硫化形状记忆腰果酚
Keywords:
Eucommia ulmoides gum polylactic acid dynamic vulcanization shape memory cardanol
分类号:
TQ 334.9
DOI:
DOI:10.19908/j.cnki.ISSN1000-1255.2023.01.0028
文献标识码:
A
摘要:
将生物基高分子材料杜仲胶(EUG)和聚乳酸(PLA)通过动态硫化技术制备了具有形状记忆性能的热塑性硫化胶(EUG/PLA TPV)。通过扫描电子显微镜、差示扫描量热、动态力学和力学性能测试及热机械循环分析等手段分别考察了EUG/PLA TPV的微观形貌、相容性、热性能、动态力学和力学性能及形状记忆性能。结果表明,增容剂腰果酚有效改善了EUG相与PLA相之间的相容性,从而提高了EUG/PLA TPV的力学性能。当橡塑质量比为5/5时,拉伸强度为10.5 MPa,扯断伸长率达到286%,是纯PLA的约48倍。EUG/PLA TPV具备特殊的双连续相结构,可以赋予其良好的形状记忆性能,形状固定率最高达到93%左右,形状回复率最高达到98%左右。
Abstract:
Bio-based Eucommia ulmoides gum (EUG) and polylactic acid (PLA) were used to prepare thermoplastic vulcanizates (EUG/PLA TPV) with shape memory property by dynamic vulcanization technology. The micromorphology, compatibility, thermal properties, dynamic mechanical properties, mechanical properties and shape memory property of EUG/PLA TPV were investigated by means of scanning electron microscopy, differential scanning calorimetry, dynamic mechanical properties and mechanical properties testing and thermo-mechanical cycle analysis. The results showed that the compatibilizer cardanol improved effectively the compati-bility between EUG phase and PLA phase, thereby improving the mechanical properties of EUG/PLA TPV. When the mass ratio of rubber to plastic was 5/5, the tensile strength was 10.5 MPa, and the elongation at break reached a maximum of 286%, which was 48 times that of pure PLA. EUG/PLA TPV had a special bicontinuous phase structure, which could endow itself with good shape memory property. The maximum shape fixed rate and shape recovered rate were 93% and 98%, respectively.

参考文献/References

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备注/Memo

备注/Memo:
辽宁省自然科学基金资助项目(2019-MS-263);2019年沈阳化工大学“优青”托举项目(2019 YQ 003)
更新日期/Last Update: 2023-01-15