Self-Adhesive Polydimethylsiloxane Foam Materials Decorated with MXene/Cellulose Nanofiber Interconnected Network for Versatile Functionalities,Advanced Functional Materials

当前位置： X-MOL 学术 › Adv. Funct. Mater. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Self-Adhesive Polydimethylsiloxane Foam Materials Decorated with MXene/Cellulose Nanofiber Interconnected Network for Versatile Functionalities
Advanced Functional Materials ( IF 18.5 ) Pub Date : 2023-07-17 , DOI: 10.1002/adfm.202304927
Hai‐Yang Chen ₁ , Zuan‐Yu Chen ₁ , Min Mao _{1,

2} , Yu‐Yue Wu ₁ , Fan Yang ₁ , Li‐Xiu Gong ₁ , Li Zhao ₁ , Cheng‐Fei Cao ₃ , Pingan Song _{3,

4} , Jie‐Feng Gao ₅ , Guo‐Dong Zhang ₁ , Yong‐Qian Shi ₆ , Kun Cao ₇ , Long‐Cheng Tang ₁

Affiliation

Polydimethylsiloxanes (PDMS) foam as one of next-generation polymer foam materials shows poor surface adhesion and limited functionality, which greatly restricts its potential applications. Fabrication of advanced PDMS foam materials with multiple functionalities remains a critical challenge. In this study, unprecedented self-adhesive PDMS foam materials are reported with worm-like rough structure and reactive groups for fabricating multifunctional PDMS foam nanocomposites decorated with MXene/cellulose nanofiber (MXene/CNF) interconnected network by a facile silicone foaming and dip-coating strategy followed by silane surface modification. Interestingly, such self-adhesive PDMS foam produces strong interfacial adhesion with the hybrid MXene/CNF nano-coatings. Consequently, the optimized PDMS foam nanocomposites have excellent surface super-hydrophobicity (water contact angle of ≈159^o), tunable electrical conductivity (from 10⁻⁸ to 10 S m⁻¹), stable compressive cyclic reliability in both wide-temperature range (from −20 to 200 ^oC) and complex environments (acid, sodium, and alkali conditions), outstanding flame resistance (LOI value of >27% and low smoke production rate), good thermal insulating performance and reliable strain sensing in various stress modes and complex environmental conditions. It provides a new route for the rational design and development of advanced PDMS foam nanocomposites with versatile multifunctionalities for various promising applications such as intelligent healthcare monitoring and fire-safe thermal insulation.

中文翻译：

具有多功能功能的 MXene/纤维素纳米纤维互连网络装饰的自粘聚二甲基硅氧烷泡沫材料

聚二甲基硅氧烷（PDMS）泡沫作为新一代聚合物泡沫材料之一，其表面附着力差、功能有限，极大地限制了其潜在应用。具有多种功能的先进 PDMS 泡沫材料的制造仍然是一个严峻的挑战。在这项研究中，报道了前所未有的自粘性PDMS泡沫材料，具有蠕虫状粗糙结构和反应基团，用于通过简便的有机硅发泡和浸涂来制造用MXene/纤维素纳米纤维（MXene/CNF）互连网络装饰的多功能PDMS泡沫纳米复合材料随后进行硅烷表面改性的策略。有趣的是，这种自粘性 PDMS 泡沫与混合 MXene/CNF 纳米涂层产生了很强的界面粘附力。因此，优化的PDMS泡沫纳米复合材料具有优异的表面超疏水性（水接触角约159 ^o）、可调的电导率（从10 ^-8到10 S m ^-1）、在宽温度范围内稳定的压缩循环可靠性（ -20至200 ^℃）和复杂环境（酸、钠、碱条件），优异的阻燃性（LOI值>27%且发烟率低），良好的隔热性能以及各种应力模式下可靠的应变传感和复杂的环境条件。它为合理设计和开发先进的PDMS泡沫纳米复合材料提供了一条新途径，该复合材料具有多功能性，可用于智能医疗监控和防火隔热等各种有前途的应用。

更新日期：2023-07-17

点击分享查看原文

点击收藏

阅读更多本刊新发论文本刊介绍/投稿指南