Multifunctional Biobased Polyurethane/Tannic Acid Composites with Controllable Damping, Flame-Retardant, and Ultraviolet-Shielding Performances

IF 4.4 2区化学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY ACS Applied Polymer Materials Pub Date : 2024-07-04 DOI:10.1021/acsapm.4c01289

Dexian Yin, Xin Wang, Yimin Wang, Tao Shou, Xiuying Zhao, Li Liu, Shikai Hu, Liqun Zhang

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Abstract

Elastomers with distinctive viscoelastic behavior are widely utilized in vibration and noise reduction. However, most elastomers are derived from petroleum-based sources and their functionality are limited to a single purpose. In this work, a biobased polyurethane (bio-PU) elastomer was synthesized from biobased poly(trimethylene ether) glycol, and then a H-bond cross-linking strategy was implemented by incorporating biobased tannic acid (bio-TA) to fabricate biobased PU/TA (bio-PU/TA) damping composites. The structures and performances of the fabricated composites were systematically characterized. The results illustrated that the strong H-bond interactions between bio-PU and bio-TA molecular chains greatly enhanced the mechanical and damping performances of the composites, in which the tensile strength, elongation at break, and tan δ_max of bio-PU/TA composites were enhanced by 173.5, 68.7, and 55.4%, respectively. Moreover, the introduction of bio-TA with abundant polyphenol structures remarkably improves the capacity for residual carbon formation and the ultraviolet (UV)-shielding of bio-PU, leading to an upgraded bio-PU/TA composite flame retardancy and enhanced UV-shielding properties in the 280–400 nm UV region. The fabricated bio-PU/TA composites offer a promising strategy for developing damping materials with multifunctional performances.

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具有可控阻尼、阻燃和紫外线屏蔽性能的多功能生物基聚氨酯/单宁酸复合材料

具有独特粘弹性的弹性体被广泛应用于减震降噪领域。然而，大多数弹性体都来自石油，其功能仅限于单一用途。本研究以生物基聚三亚甲基醚二醇为原料，合成了生物基聚氨酯（bio-PU）弹性体，然后通过加入生物基单宁酸（bio-TA），实施了H键交联策略，制成了生物基聚氨酯/TA（bio-PU/TA）阻尼复合材料。对所制复合材料的结构和性能进行了系统表征。结果表明，生物聚氨酯和生物 TA 分子链之间的强 H 键相互作用大大提高了复合材料的机械性能和阻尼性能，其中生物聚氨酯/TA 复合材料的拉伸强度、断裂伸长率和 tan δmax 分别提高了 173.5%、68.7% 和 55.4%。此外，含有丰富多酚结构的生物 TA 的引入显著提高了生物聚氨酯的残碳形成能力和紫外线（UV）屏蔽能力，从而提升了生物聚氨酯/TA 复合材料的阻燃性能，并增强了其在 280-400 纳米紫外线区域的紫外线屏蔽性能。所制造的生物聚氨酯/TA 复合材料为开发具有多功能性能的阻尼材料提供了一种前景广阔的策略。

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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.