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首页> 外文期刊>Journal of Applied Polymer Science >Development and Characterization of Boron Incorporated Linseed Oil Polyurethanes
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Development and Characterization of Boron Incorporated Linseed Oil Polyurethanes

机译：掺硼亚麻籽油聚氨酯的研制与表征

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摘要

The aim of this work was to investigate the structures and properties of boron incorporated linseed oil polyols (BPEPs) and their polyurethanes (BPEPUs). Hydroxylation was performed in situ using H2O2 and acetic acid; the syntheses of BPEPs and BPEPUs involves polyesterification and polyaddition reactions following ‘‘single-pot, multi-step’’ reactions strategy. Spectral (IR, 1H-NMR, and 13C-NMR), physicochemical, thermal (TGA, DSC), physico-mechanical analyses and corrosion/chemical resistance performance of aforementioned resins confirmed the incorporation of boron in polyol and polyurethane backbone. BPEPUs followed a clear cut ‘‘three step-ambient temperature’’ curing strategy. They showed very good resistance to 5 wt % HCl, 3.5 wt % NaCl (unaffected for 16 and 14 days, respectively), moderate alkali resistance and moderate to good antibacterial activity against E. coli and S. aureus. Our investigations reveal that (i) the incorporation of boron has significant influence on the structural, physicochemical aspects, physico- mechanical, chemical resistance behavior, and thermal stability of polyurethanes, (ii) boron linkages play dual role, both as cross linker and modifier, and (iii) BPEPUs may serve as efficient corrosion protective material,which may be safely employed upto 230C.
机译：这项工作的目的是研究掺硼的亚麻籽油多元醇（BPEP）及其聚氨酯（BPEPU）的结构和性能。使用过氧化氢和乙酸原位进行羟化反应; BPEP和BPEPU的合成遵循“单罐，多步”反应策略，涉及聚酯化和加聚反应。前述树脂的光谱（IR，1 H-NMR和13 C-NMR），物理化学，热学（TGA，DSC），物理机械分析和耐腐蚀/耐化学药品性能证实了硼在多元醇和聚氨酯骨架中的结合。 BPEPU遵循明确的“三步环境温度”固化策略。它们显示出对5 wt％HCl，3.5 wt％NaCl的非常好的抵抗力（分别不受影响16天和14天），适度的耐碱性和对大肠杆菌和金黄色葡萄球菌的中等至良好的抗菌活性。我们的研究表明（i）硼的掺入对聚氨酯的结构，物理化学方面，物理力学，耐化学性和热稳定性有重大影响，（ii）硼键起交联剂和改性剂的双重作用（iii）BPEPU可以用作有效的腐蚀防护材料，最高可安全使用到230C。

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