Determining the Self-Limiting Electrospray Deposition Compositional Limits for Mechanically Tunable Polymer Composites
Determining the Self-Limiting Electrospray Deposition Compositional Limits for Mechanically Tunable Polymer Composites
复制标题
确定机械可调聚合物复合材料的自限性电喷雾沉积成分限制
DOI：
10.1021/acsapm.2c00106
复制
发表时间：
2022
影响因子：
5
通讯作者：
Singer, Jonathan P.
中科院分区：
文献类型：
--
作者：
Green-Warren, Robert A.;Bontoux, Luc;McAllister, Noah M.;Kovacevich, Dylan A.;Shaikh, Asaad;Kuznetsova, Christianna;Tenorio, Max;Lei, Lin;Pelegri, Assimina A.;Singer, Jonathan P.
电喷雾沉积（ESD）是一种通用的微/纳米涂层技术，其利用液滴的表面电荷与其表面张力之间的竞争来产生单分散的微/纳米液滴代。ESD可以通过在这些液滴中包括稀释的溶质来存款均匀的薄膜。ESD的一种模式，即自限性ESD（SLED），已经显示当玻璃状聚合物在低于聚合物玻璃化转变温度（Tg）的挥发性溶剂中喷雾时存在。这导致涂层表面上的电荷积累，这减缓了膜厚度的增长。由于溶质可以很容易地混合在稀释的ESD解决方案，我们调查的SLED限制的自限性和非自限性溶质共混物。作为一个激励性的应用，我们专注于薄膜的机械性能。具体而言，我们将自限性聚苯乙烯和SU-8环氧树脂与不同的非自限性机械改性剂（如增塑剂和固化剂）共混。为了表征所得的形貌和机械性能，我们采用扫描电子显微镜和纳米压痕的接收到的多孔和热平滑的薄膜。结果表明，形成的复合聚合物表现出自限性的能力，通过SLED，取决于两个组件之间的相互作用。此外，在这些组成范围内可以有效地微调机械性能。这意味着通过SLED提供的3D涂层功能可以通过在基础基质之外加入额外的功能和特性来增强。
Electrospray deposition (ESD) is a versatile micro-/nanocoating technology that utilizes the competition between the surface charge of a droplet and its surface tension to create monodisperse generations of micro-/nanodroplets. ESD can deposit uniform thin films by including dilute solutes in these droplets. One mode of ESD, self-limiting ESD (SLED), has been shown to exist when glassy polymers are sprayed in a volatile solvent below the polymer glass-transition temperature (Tg). This leads to charge accumulation on the coating surface that slows the growth of the film thickness. Since solutes can be easily blended in dilute ESD solutions, we investigate the SLED limits of self-limiting and non-self-limiting solute blends. As a motivating application, we focus on the mechanical properties of the films. Specifically, we blend self-limiting polystyrene and SU-8 epoxy resin with different non-self-limiting mechanical modifiers, such as plasticizers and curing agents. To characterize the resulting morphologies and mechanical properties, we employ scanning electron microscopy and nanoindentation of the as-received porous and thermally smoothed films. The results illustrate the formation of composited polymers that exhibit self-limiting ability by SLED, depending on the interaction between the two components. Furthermore, mechanical properties could be effectively fine-tuned within these compositional ranges. This signifies that the 3D coating capabilities available through SLED can be enhanced by incorporating additional functionalities and properties beyond the base matrix.
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DOI：
10.1016/j.msec.2019.110070
发表时间：
2019-12
期刊：
Materials science & engineering. C, Materials for biological applications
影响因子：
--
作者：
Rebeca T. Steipel;M. Gallovic;Cole J. Batty;E. Bachelder;K. Ainslie
通讯作者：
Rebeca T. Steipel;M. Gallovic;Cole J. Batty;E. Bachelder;K. Ainslie
影响因子：
9.9
作者：
Matsumoto, H;Mizukoshi, T;Yamagata, Y
通讯作者：
Yamagata, Y
影响因子：
7.4
作者：
Morozov, VN;Morozova, TY
通讯作者：
Morozova, TY
影响因子：
5.8
作者：
Zhuang Z;John JV;Liao H;Luo J;Rubery P;Mesfin A;Boda SK;Xie J;Zhang X
通讯作者：
Zhang X
电喷雾对大双链 DNA 的可逆和不可逆机械损伤。
影响因子：
7.4
作者：
Y. M. Shlyapnikov;E. Shlyapnikova;V. Morozov
通讯作者：
V. Morozov