CO2-based polyurethane elastomers with enhanced mechanical and tunable room-temperature damping performances

IF 5.8 2区化学 Q1 POLYMER SCIENCE

European Polymer Journal Pub Date : 2024-10-11 DOI:10.1016/j.eurpolymj.2024.113499

Xin Wang , Dexian Yin , Zhi Chen , Yuqiong Hu , Shikai Hu , Xiuying Zhao

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引用次数: 0

Abstract

Elastomers provide excellent damping performance owing to their unique viscoelasticity, which are widely used as vibration and noise reduction materials. However, conventional rubber-based elastomers with a low glass transition temperature (T_g) and narrow damping range are difficult to adapt to room-temperature conditions. Additionally, most of petroleum-based elastomers hinder the sustainable development. In this work, a series of novel polyurethane elastomers was synthesized using carbon-fixed CO₂-based polycarbonate propylene diol (PPCD). The impact of hard segment (HS) content on the thermal, mechanical, and damping properties of CO₂-based polyurethane (PU) was comprehensively investigated. Increasing the HS content from 16 % to 44 % increased the T_g from −3.8 °C to 21.7 °C, covering the entire damping range at room temperature with an adjustable damping performance. Furthermore, the tensile strength increased from 7.2 MPa to 27.0 MPa. The synthesis of CO₂-based PU can propel the utilization of PU in damping applications, enabling sustainable advancement of the PU industry.

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具有更强机械性能和可调室温阻尼性能的二氧化碳基聚氨酯弹性体

弹性体因其独特的粘弹性而具有出色的阻尼性能，被广泛用作减震降噪材料。然而，传统的橡胶基弹性体玻璃化转变温度（Tg）低，阻尼范围窄，难以适应室温条件。此外，大多数石油基弹性体阻碍了可持续发展。在这项研究中，利用固定碳的二氧化碳基聚碳酸酯丙二醇（PPCD）合成了一系列新型聚氨酯弹性体。该研究全面考察了硬质段（HS）含量对二氧化碳基聚氨酯（PU）的热性能、机械性能和阻尼性能的影响。将 HS 含量从 16% 提高到 44%，可将 Tg 从 -3.8 °C 提高到 21.7 °C，覆盖室温下的整个阻尼范围，且阻尼性能可调。此外，拉伸强度从 7.2 兆帕增加到 27.0 兆帕。二氧化碳基聚氨酯的合成可推动聚氨酯在阻尼应用中的使用，实现聚氨酯行业的可持续发展。

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来源期刊

European Polymer Journal 化学-高分子科学

CiteScore

9.90

自引率

10.00%

发文量

691

审稿时长

23 days

期刊介绍： European Polymer Journal is dedicated to publishing work on fundamental and applied polymer chemistry and macromolecular materials. The journal covers all aspects of polymer synthesis, including polymerization mechanisms and chemical functional transformations, with a focus on novel polymers and the relationships between molecular structure and polymer properties. In addition, we welcome submissions on bio-based or renewable polymers, stimuli-responsive systems and polymer bio-hybrids. European Polymer Journal also publishes research on the biomedical application of polymers, including drug delivery and regenerative medicine. The main scope is covered but not limited to the following core research areas: Polymer synthesis and functionalization • Novel synthetic routes for polymerization, functional modification, controlled/living polymerization and precision polymers. Stimuli-responsive polymers • Including shape memory and self-healing polymers. Supramolecular polymers and self-assembly • Molecular recognition and higher order polymer structures. Renewable and sustainable polymers • Bio-based, biodegradable and anti-microbial polymers and polymeric bio-nanocomposites. Polymers at interfaces and surfaces • Chemistry and engineering of surfaces with biological relevance, including patterning, antifouling polymers and polymers for membrane applications. Biomedical applications and nanomedicine • Polymers for regenerative medicine, drug delivery molecular release and gene therapy The scope of European Polymer Journal no longer includes Polymer Physics.