Evaluation of energy storage potential within shape memory rubber nanocomposite films

IF 1.5 4区化学 Q4 POLYMER SCIENCE

Journal of Rubber Research Pub Date : 2025-05-27 DOI:10.1007/s42464-025-00300-x

Yi Wei Tan, Ai Bao Chai, Kim Yeow Tshai, Jee Hou Ho, Jiuke Mu, Shamsul Kamaruddin, Andri Andriyana

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Abstract

Shape memory rubber (SMR) is a type of smart rubber capable of undergoing reversible transformations when exposed to external factors such as temperature. Lightly crosslinked natural rubber (NR) exhibits shape memory behaviour without requiring preliminary heat treatment making it a unique smart material. This study aims to develop rubber nanocomposite films reinforced with starch nanocrystals (SNC) for improvement of mechanical properties. To this end, the focus is on evaluating the shape memory effect (SME) and quantifying the energy storage potential of the SNC reinforced rubber composite films. Natural rubber latex (NRL) and SNC synthesized by acid hydrolysis were used as raw materials to fabricate the green shape memory natural rubber latex (SMNRL) films. It was found that the incorporation of SNC into NRL effectively enhanced the mechanical properties and SME of the rubber nanocomposite films. The tensile strength of the rubber nanocomposite film was increased by up to 206% upon addition of SNC while having no detrimental effect on the elasticity of the material. The excellent SME is demonstrated through high shape fixity (S_f) and shape recovery (S_r) achieving 93.3% and 100%, respectively. As a result of its shape fixing capability, the SMNRL film can store part of the applied energy showcasing its energy storage potential. The calculated stored energy is 20.6 MJ/m³ with a storage efficiency of 61.5%. In summary, SNC is an effective reinforcing filler showed through the increase in tensile strength. Moreover, addition of 8% SNC improved the S_f by 35% while having a positive impact on the energy storage potential of the rubber nanocomposite films.

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形状记忆橡胶纳米复合薄膜的储能潜力评价

形状记忆橡胶（SMR）是一种智能橡胶，当暴露于温度等外部因素时，能够发生可逆的转变。轻交联天然橡胶（NR）表现出形状记忆行为，无需预先热处理，使其成为一种独特的智能材料。本研究旨在开发以淀粉纳米晶（SNC）增强橡胶纳米复合薄膜，以改善其力学性能。为此，重点评价了SNC增强橡胶复合薄膜的形状记忆效应（SME），并对其储能潜力进行了量化。以酸水解合成的天然胶乳（NRL）和SNC为原料，制备绿色形状记忆型天然胶乳（SMNRL）薄膜。结果表明，在NRL中加入SNC可有效提高橡胶纳米复合薄膜的力学性能和SME。SNC的加入使橡胶纳米复合膜的抗拉强度提高了206%，同时对材料的弹性没有不利影响。具有较高的形状固形性（Sf）和形状回收率（Sr），分别达到93.3%和100%。由于其形状固定能力，SMNRL薄膜可以存储部分应用能量，显示其储能潜力。计算得到的蓄能为20.6 MJ/m3，蓄能效率为61.5%。综上所述，SNC是一种有效的补强填料，表现为抗拉强度的提高。此外，添加8%的SNC可提高35%的Sf，同时对橡胶纳米复合膜的储能潜力产生积极影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Rubber Research 化学-高分子科学

自引率

15.40%

发文量

审稿时长

3 months

期刊介绍： The Journal of Rubber Research is devoted to both natural and synthetic rubbers, as well as to related disciplines. The scope of the journal encompasses all aspects of rubber from the core disciplines of biology, physics and chemistry, as well as economics. As a specialised field, rubber science includes within its niche a vast potential of innovative and value-added research areas yet to be explored. This peer reviewed publication focuses on the results of active experimental research and authoritative reviews on all aspects of rubber science. The Journal of Rubber Research welcomes research on: the upstream, including crop management, crop improvement and protection, and biotechnology; the midstream, including processing and effluent management; the downstream, including rubber engineering and product design, advanced rubber technology, latex science and technology, and chemistry and materials exploratory; economics, including the economics of rubber production, consumption, and market analysis. The Journal of Rubber Research serves to build a collective knowledge base while communicating information and validating the quality of research within the discipline, and bringing together work from experts in rubber science and related disciplines. Scientists in both academia and industry involved in researching and working with all aspects of rubber will find this journal to be both source of information and a gateway for their own publications.