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Smart Self-Puffing Phosphite-Protonated Siloxane Network Enables Multifunctional Transparent Protection
ACS Materials Letters ( IF 9.6 ) Pub Date : 2023-08-04 , DOI: 10.1021/acsmaterialslett.3c00755
Lin Zhang 1 , Guan-Qi Zheng 1 , Xue-Lian Chen 1 , Shuai-Qi Guo 1 , Fu-Rong Zeng 1 , Bo-Wen Liu 1 , Xiao-Liang Zeng 2 , Xin-Sheng Lan 2 , Yu-Zhong Wang 1 , Hai-Bo Zhao 1
Affiliation  

Harsh-condition protective materials are essential for resisting various types of environmental damage, such as fire, microbes, scratches, and etc. However, integrating multiple protective functions in one transparent flexible material without sacrificing each other remains a formidable challenge. Here, we demonstrate a smart-puffing transparent flexible phosphite-protonated siloxane (PSiP) that simultaneously exhibits excellent fire protection, high-temperature insulation, antibacterial, antimold, and self-healing properties. A facile one-step method is developed to create this microporous PSiP using (3-aminopropyl)triethoxysilane and phosphite via hydrophilic–hydrophobic interaction-driven self-assembly. Notably, PSiP employs an intelligent thermal-responsive self-puffing behavior to achieve high-temperature insulation, effectively blocking 87.8% of 1400 °C heat. The unique dynamic phosphite-protonated siloxane network in PSiP with high transparency (>92% in the visible region) affords self-healing ability as well as potent defense against fire and bacteria (>99% efficiency). Our findings open up a new avenue for developing transparent, flexible, and high-performance multihazard protective materials with potential applications in buildings, windshields, electronics, and beyond.

中文翻译:

智能自膨胀亚磷酸酯质子化硅氧烷网络实现多功能透明保护

恶劣条件下的防护材料对于抵御各种类型的环境损害(例如火灾、微生物、划痕等)至关重要。然而,将多种防护功能集成在一种透明柔性材料中而不牺牲彼此的性能仍然是一项艰巨的挑战。在这里,我们展示了一种智能膨化透明柔性亚磷酸酯质子化硅氧烷(PSiP),它同时具有优异的防火、高温绝缘、抗菌、防霉和自修复性能。开发了一种简便的一步法,使用(3-氨基丙基)三乙氧基硅烷和亚磷酸酯,通过亲水-疏水相互作用驱动的自组装来制造这种微孔 PSiP。值得注意的是,PSiP 采用智能热响应自膨胀行为来实现高温绝缘,有效阻挡 87。1400°C 热量的 8%。PSiP 中独特的动态亚磷酸酯质子化硅氧烷网络具有高透明度(在可见光区域> 92%),具有自我修复能力以及有效的防火和细菌防御能力(​​> 99%的效率)。我们的研究结果为开发透明、灵活和高性能的多危险防护材料开辟了一条新途径,并在建筑、挡风玻璃、电子产品等领域具有潜在的应用。
更新日期:2023-08-04
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