Reprocessable and 3D printable polydimethylsiloxane by dynamic siloxane bond exchange

IF 1.8 4区 材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY
Woohwa Lee, Hyun Kim, In-Soo Han, Chang-Geun Chae, Sungmin Park, Dong-Gyun Kim, Yong Seok Kim
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引用次数: 0

Abstract

Strategies for synthesis and processing of silicone rubber materials in three-dimensional (3D) structures are of significant interest based on their exceptional potential in many applications including flexible electronics and biomedical devices. Here, we present a synthetic approach of crosslinked polydimethylsiloxane (PDMS) exhibiting dynamic siloxane bond exchange for sufficient stress relaxation capability to enable versatile processabilities including reprocessing, remolding, self-healing, and hot-melt extrusion 3D printing. Considering the significant potential of recyclable silicone materials and their 3D structures, presented approaches enabled by dynamic exchangeable PDMS can provide a new pathway to replace conventional unrecyclable silicone used in diverse industrial sectors.

Graphical abstract

Abstract Image

通过动态硅氧烷键交换实现可再加工和三维打印的聚二甲基硅氧烷
三维(3D)结构硅橡胶材料在柔性电子设备和生物医学设备等许多应用领域具有巨大潜力,因此其合成和加工策略备受关注。在此,我们介绍了一种交联聚二甲基硅氧烷(PDMS)的合成方法,该方法可实现动态硅氧烷键交换,具有足够的应力松弛能力,从而实现包括再加工、重塑、自愈合和热熔挤出三维打印在内的多种加工功能。考虑到可回收有机硅材料及其三维结构的巨大潜力,所介绍的动态可交换 PDMS 方法可以提供一种新的途径,取代各种工业领域中使用的传统不可回收有机硅。
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来源期刊
MRS Communications
MRS Communications MATERIALS SCIENCE, MULTIDISCIPLINARY-
CiteScore
2.60
自引率
10.50%
发文量
166
审稿时长
>12 weeks
期刊介绍: MRS Communications is a full-color, high-impact journal focused on rapid publication of completed research with broad appeal to the materials community. MRS Communications offers a rapid but rigorous peer-review process and time to publication. Leveraging its access to the far-reaching technical expertise of MRS members and leading materials researchers from around the world, the journal boasts an experienced and highly respected board of principal editors and reviewers.
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