超韧、超强、超透明的生物基水性聚氨酯，具有优异的防腐蚀性能

IF 4.1 2区化学 Q2 POLYMER SCIENCE

Polymer Pub Date : 2024-11-07 DOI:10.1016/j.polymer.2024.127802

Hui Dong , Linlin Wang , Shengtao Zhang , Yunran Zhang , Wenjie Yang , Chunxiang Wei , SanE Zhu , Zhongxing Geng , Shibin Nie , Liangji Xu , Hongdian Lu , Wei Yang

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引用次数: 0

摘要

水性聚氨酯（WPU）因其经济实惠、环保和便于水性储存而越来越受到青睐。然而，亲水基团的加入会降低其机械强度和耐水性。在此，我们以经济、可持续的生物基聚三亚甲基醚乙二醇（PO3G）、异佛尔酮二异氰酸酯（IPDI）和聚丙二醇（PPG）为原料，合成了一系列生物基水性聚氨酯，这些聚氨酯具有优异的机械性能、透明度和耐腐蚀性。我们探讨了不同的 PO3G 含量如何影响这些生物基 WPU 乳液和薄膜的性能。研究结果表明，PO3G 含量超过 30% 的薄膜的拉伸强度超过 10 兆帕，并保持较高的断裂伸长率（超过 4000%），达到或超过了现有的生物基 WPU 系统。这些薄膜的耐腐蚀性也非常出色，具有很高的抑制效率（超过 99.97%）。这项研究为制造高性能生物基 WPU 引入了一种新方法，有望应用于涂料、皮革和生物医学材料。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Ultra-tough, strong and transparent bio-based waterborne polyurethanes with exceptional anti-corrosion properties

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Ultra-tough, strong and transparent bio-based waterborne polyurethanes with exceptional anti-corrosion properties

Waterborne polyurethane (WPU) is increasingly favored because of its affordability, eco-friendliness, and water-based storage convenience. However, the inclusion of hydrophilic groups can diminish its mechanical strength and water resistance. Herein, a range of bio-based waterborne polyurethanes were synthesized by using economical and sustainable poly(trimethylene ether) glycol (PO3G), isophorone diisocyanate (IPDI), and poly(propylene glycol) (PPG) as raw materials. They exhibited superior mechanical properties, transparency, and corrosion resistance. We explored the effect of PO3G content on the properties of these bio-based WPU emulsions and films. The findings revealed that films with over 30 % PO3G content demonstrated a high tensile strength (above 10 MPa) and maintained a high elongation at break (above 4000 %), matching or surpassing existing bio-based WPU systems. The corrosion resistance of these films was also exceptional, with a high inhibition efficiency (above 99.97 %). This research introduces a new approach for creating high-performance bio-based WPUs with promising applications in coatings, leather, and biomedical materials.

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来源期刊

Polymer 化学-高分子科学

CiteScore

7.90

自引率

8.70%

发文量

959

审稿时长

32 days

期刊介绍： Polymer is an interdisciplinary journal dedicated to publishing innovative and significant advances in Polymer Physics, Chemistry and Technology. We welcome submissions on polymer hybrids, nanocomposites, characterisation and self-assembly. Polymer also publishes work on the technological application of polymers in energy and optoelectronics. The main scope is covered but not limited to the following core areas: Polymer Materials Nanocomposites and hybrid nanomaterials Polymer blends, films, fibres, networks and porous materials Physical Characterization Characterisation, modelling and simulation* of molecular and materials properties in bulk, solution, and thin films Polymer Engineering Advanced multiscale processing methods Polymer Synthesis, Modification and Self-assembly Including designer polymer architectures, mechanisms and kinetics, and supramolecular polymerization Technological Applications Polymers for energy generation and storage Polymer membranes for separation technology Polymers for opto- and microelectronics.