A Mechanically Strong, Aging-Resistant, and Reprocessable Elastomer Based on Carboxylated Nitrile Butadiene Rubber (XNBR) Composite for Photothermal Conversion Application

IF 4.4 2区化学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

ACS Applied Polymer Materials Pub Date : 2025-04-11 DOI:10.1021/acsapm.5c0093810.1021/acsapm.5c00938

Huiyu Wang, Yiming Zou, Jiahao Chen, Aihua Du* and Yingjun Liu*,

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Abstract

Designing elastomers with integrated excellent mechanical strength and elasticity, aging resistance, reprocessability, and photothermal conversion capabilities remains a critical challenge in sustainable materials science. Here, we report a simple and environmentally friendly strategy to fabricate multifunctional elastomers by incorporating grape seed proanthocyanidin (GSP)─a natural biofiller─into carboxylated nitrile butadiene rubber (XNBR) matrix via a solvent-free mechanical blending process. The compatibility between GSP and XNBR is improved by incorporating ZnO, which forms metal coordination bonds between XNBR and GSP. The XNBR composite exhibits excellent mechanical properties, especially the composite with 30 per hundred rubber (phr) GSP, with robust tensile strength (10.3 MPa) and elongation at break (1004%). This is attributed to the hydrogen and metal coordination bonds between GSP and XNBR. Remarkably, the composite with 30 phr GSP exhibits superior aging resistance (tensile strength retention rate = 88%) in thermo-oxidative aging (80 °C, 24 h) and reprocessability. Critically, the composite exhibits stable photothermal conversion under near-infrared (NIR) irradiation, reaching temperatures up to 296 °C, and successfully powers a thermoelectric generator to drive kinetic devices, showing excellent application potential for efficient solar energy utilization.

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基于羧基丁腈橡胶（XNBR）复合材料的光热转换用机械强度高、耐老化、可再加工弹性体

设计具有优异机械强度和弹性、耐老化性、可再加工性和光热转换能力的弹性体仍然是可持续材料科学的关键挑战。在这里，我们报告了一种简单而环保的制造多功能弹性体的策略，通过无溶剂机械共混工艺，将葡萄籽原花青素（GSP）──一种天然生物填料──加入羧基丁腈橡胶（XNBR）基质中。ZnO在XNBR和GSP之间形成金属配位键，提高了GSP与XNBR的相容性。XNBR复合材料表现出优异的力学性能，特别是含30 / 100 GSP （phr）的复合材料具有良好的抗拉强度（10.3 MPa）和断裂伸长率（1004%）。这归因于GSP和XNBR之间的氢和金属配位键。在热氧化时效（80℃，24 h）过程中，含30 phr GSP的复合材料表现出优异的抗老化性能（拉伸强度保持率为88%）和再加工性能。关键是，该复合材料在近红外（NIR）照射下表现出稳定的光热转换，温度高达296°C，并成功地为热电发电机提供动力，驱动动力装置，显示出高效利用太阳能的良好应用潜力。

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来源期刊

ACS Applied Polymer Materials Multiple-

CiteScore

7.20

自引率

6.00%

发文量

810

期刊介绍： ACS Applied Polymer Materials is an interdisciplinary journal publishing original research covering all aspects of engineering, chemistry, physics, and biology relevant to applications of polymers. The journal is devoted to reports of new and original experimental and theoretical research of an applied nature that integrates fundamental knowledge in the areas of materials, engineering, physics, bioscience, polymer science and chemistry into important polymer applications. The journal is specifically interested in work that addresses relationships among structure, processing, morphology, chemistry, properties, and function as well as work that provide insights into mechanisms critical to the performance of the polymer for applications.