Selective Fluorination of the Surface of Polymeric Materials after Stereolithography 3D Printing.
Selective Fluorination of the Surface of Polymeric Materials after Stereolithography 3D Printing.
复制标题
DOI：
10.1021/acs.langmuir.1c00625
复制
发表时间：
2021-06-22
期刊：
影响因子：
--
通讯作者：
Pompano RR
中科院分区：
文献类型：
--
作者：
Catterton MA;Montalbine AN;Pompano RR
通过将3D树脂印刷作为快速制造方法的微流体社区，在许多应用中，控制表面化学是一种新的挑战。 ins案例研究，我们测试了具有氟烷基三氯烷的市售（Meth）基于丙烯酸酯的树脂（BV-007A）。接触角> 110°下的恐惧表面优化的条件。衰减的总反射率转换红外（ATR-FTIR）表明，接触角的增加与羰基部分的消耗相关，这表明在没有血浆氧化的情况下，硅烷的粘合物在不断的粘合度上是固定的。可墨的阻力，这种硅烷化协议在三个电阻上产生了高度的疏水表面（接触角> 110°），其余的疏水性（90 - 100°）在疏水区域中的选择性构图与简单的材料相结合。 ASE微流体学。
With the microfluidics community embracing 3D resin printing as a rapid fabrication method, controlling surface chemistry has emerged as a new challenge. Fluorination of 3D printed surfaces is highly desirable in many applications due to chemical inertness, low friction coefficients, anti-fouling properties and the potential for selective hydrophobic patterning. Despite sporadic reports, silanization methods have not been optimized for covalent bonding with polymeric resins. As a case study, we tested the silanization of a commercially available (meth)acrylate-based resin (BV-007A) with a fluoroalkyl trichlorosilane. Interestingly, plasma oxidation was unnecessary for silanization of this resin, and indeed was ineffective. Solvent-based deposition in a fluorinated oil (FC-40) generated significantly higher contact angles than deposition in ethanol or gas-phase deposition, yielding hydrophobic surfaces with contact angle > 110° under optimized conditions. Attenuated Total Reflectance-Fourier Transform Infrared (ATR-FTIR) spectroscopy indicated that the increase in contact angle correlated with consumption of a carbonyl moiety, suggesting covalent bonding of the silane without plasma oxidation. Consistent with a covalent bond, the silanization was resistant to mechanical damage and hydrolysis in methanol, and was stable over long-term storage. When tested on a suite of photocrosslinkable resins, this silanization protocol generated highly hydrophobic surfaces (contact angle > 110°) on three resins and moderate hydrophobicity (90 – 100°) on the remainder. Selective patterning of hydrophobic regions in an open 3D-printed microchannel was possible in combination with simple masking techniques. Thus, this facile fluorination strategy is expected to be applicable for resin-printed materials in a variety of contexts including micropatterning and multiphase microfluidics.
登录
查看更多内容
DOI：
10.6028/jres.110.081
发表时间：
2005-09
影响因子：
1.5
作者：
Antonucci JM;Dickens SH;Fowler BO;Xu HH;McDonough WG
通讯作者：
McDonough WG
影响因子：
6.2
作者：
Carrell, Cody S.;McCord, Cynthia P.;Henry, Charles S.
通讯作者：
Henry, Charles S.
影响因子：
6.1
作者：
Catterton, Megan A.;Dunn, Austin F.;Pompano, Rebecca R.
通讯作者：
Pompano, Rebecca R.
影响因子：
3.9
作者：
de Givenchy, Elisabeth Patricia Taffin;Amigoni, Sonia;Guittard, Frederic
通讯作者：
Guittard, Frederic
影响因子：
3.4
作者：
Kotz, Frederik;Risch, Patrick;Rapp, Bastian E.
通讯作者：
Rapp, Bastian E.