Reversible Stress-Driven and Stress-Free Two-Way Shape Memory Effect in a Sol-Gel Crosslinked Polycaprolactone

被引:5
|
作者
Inverardi, Nicoletta [1 ]
Pandini, Stefano [1 ]
Gemmo, Gabriele [2 ]
Toselli, Maurizio [2 ]
Messori, Massimo [3 ]
Scalet, Giulia [4 ]
Auricchio, Ferdinando [4 ]
机构
[1] Univ Brescia, Dept Mech & Ind Engn, Via Branze 38, I-25133 Brescia, Italy
[2] Univ Bologna, Dept Ind Chem Toso Montanari, Viale Risorgimento 4, I-40136 Bologna, Italy
[3] Politecn Torino, Dept Appl Sci & Technol, Corso Duca Abruzzi 24, I-10129 Turin, Italy
[4] Univ Pavia, Dept Civil Engn & Architecture, Via Ferrata 3, I-27100 Pavia, Italy
关键词
crystallization; poly(caprolactone); shape memory polymers; stress-free reversible shape memory effect; two-way shape memory effect; POLYMERS; COPOLYMERS; ACTUATION;
D O I
10.1002/masy.202100254
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
The two-way shape memory effect is the ability of a material to change its shape between two configurations upon application and removal of a stimulus, and, among shape memory polymers, it is featured only by few systems, such as semicrystalline networks. When studied under tensile conditions, it consists of elongation-contraction cycles along cooling and heating across the crystallization and melting region, typically under the application of a constant load. However, recent studies on crosslinked semicrystalline co-polymers demonstrate that also a completely stress-free, or self-sustained, two-way effect may be achieved through specific thermomechanical cycles. This effect is currently regarded with interest for the development of intrinsically reversible sensors and actuators, and it may also be displayed by simpler materials, as homopolymer-based semicrystalline networks. Only seldom articles investigate this possibility, therefore in this work the two-way shape memory behavior is studied on a poly(e-caprolactone) system, crosslinked by means of a sol-gel approach. The effect is studied both under stress-driven and stress-free condition, by applying properly set-up thermo-mechanical histories. The results allow to describe the effect as a function of temperature, to reveal the dependence on specific testing parameters and to compare the extent of the reversible strain variation under these two conditions.
引用
收藏
页数:4
相关论文
共 50 条
  • [1] Tailoring the stress-free two-way shape memory effect in sol-gel crosslinked poly(ϵ-caprolactone)-based semicrystalline networks
    Inverardi, Nicoletta
    Toselli, Maurizio
    Messori, Massimo
    Scalet, Giulia
    Auricchio, Ferdinando
    Pandini, Stefano
    SMART MATERIALS AND STRUCTURES, 2024, 33 (08)
  • [2] Properties and mechanism of two-way shape memory polyurethane composite under stress-free condition
    Yang, Haowen
    Shi, Ruixin
    Jiang, Qinglong
    Ren, Juanna
    ADVANCED COMPOSITES AND HYBRID MATERIALS, 2023, 6 (01)
  • [3] Properties and mechanism of two-way shape memory polyurethane composite under stress-free condition
    Haowen Yang
    Ruixin Shi
    Qinglong Jiang
    Juanna Ren
    Advanced Composites and Hybrid Materials, 2023, 6
  • [4] Imparting External Stress-Free Two-Way Shape Memory Effect to Commodity Polyolefins by Manipulation of Their Hierarchical Structures
    Fan, Long Fei
    Huang, Ya Nan
    Rong, Min Zhi
    Zhang, Ming Qiu
    Chen, Xudong
    ACS MACRO LETTERS, 2019, 8 (09) : 1141 - 1146
  • [5] Stress-Free Two-Way Shape Memory Effect of Poly(ethylene glycol)/ Poly(ε-caprolactone) Semicrystalline Networks
    Inverardi, Nicoletta
    Toselli, Maurizio
    Scalet, Giulia
    Messori, Massimo
    Auricchio, Ferdinando
    Pandini, Stefano
    MACROMOLECULES, 2022, : 8533 - 8547
  • [6] Stress-Free Two-Way Shape-Memory Mechanism of a Semicrystalline Network with a Broad Melting Transition
    Wang, Jin
    Zhang, He
    Lei, Junjie
    Wu, Mengxuan
    Liu, Weifeng
    Qu, Jin-Ping
    MACROMOLECULES, 2022, 55 (22) : 10113 - 10123
  • [7] Two-way shape memory behavior of semi-crystalline elastomer under stress-free condition
    Qian, Chen
    Dong, Yubing
    Zhu, Yaofeng
    Fu, Yaqin
    SMART MATERIALS AND STRUCTURES, 2016, 25 (08)
  • [8] Multiphase PCL semi-interpenetrating networks exhibiting the triple- and stress-free two-way shape memory effect
    Uto, Koichiro
    Matsushita, Yoshitaka
    Ebara, Mitsuhiro
    POLYMER CHEMISTRY, 2023, 14 (13) : 1478 - 1487
  • [9] Stress-free two-way shape memory property and microstructure evolution of single-phase polymer networks
    Hao, Chaobo
    Yue, Huimin
    Zhou, Junjie
    He, Suqin
    Liu, Hao
    Huang, Miaoming
    Liu, Wentao
    POLYMERS FOR ADVANCED TECHNOLOGIES, 2022, 33 (12) : 4112 - 4119
  • [10] Ultra-tough and stress-free two-way shape memory polyurethane induced by polymer segment "spring"
    Guo, Yutong
    Chen, Yujie
    Yu, Qili
    Liu, Hezhou
    Li, Hua
    Yu, Yinxian
    CHEMICAL ENGINEERING JOURNAL, 2023, 470