Aromatic poly(fluorocarbinol)s: Soluble, hydrophobic binders for inkjet formulations

Godleman, Jessica; Leroux, Flavien; Reynolds, Stuart W.; Philpott, Julian M.; Cranwell, Philippa B.; Harries, Josephine L.; Hayes, Wayne; Colquhoun, Howard M.

doi:10.1016/j.porgcoat.2021.106378

Cited by 5 publications

(5 citation statements)

References 29 publications

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“…substrate surface through the implementation of a surface level cube lattice structure, using photolithography, [18] the addition of an intermediate hydrophilic polymer layer, [19,20] and the employment of soft lithography to produce wettability patterns on the surface of the substrate. However, the aforementioned methods all involve the use of time-consuming pretreatment or/and posttreatment of the substrate used for printing.…”

Section: Introductionmentioning

confidence: 99%

“…[ 12,13 ] Plasma/UV treatment of hydrophobic surfaces is one of the most common methods to enable printing on such substrates by rendering them hydrophilic, with many studies using this technique to develop and study printing on hydrophobic substrates. [ 7,14–17 ] Other methods exist to enable printing on hydrophobic surfaces, such as physical manipulation of the substrate surface through the implementation of a surface level cube lattice structure, using photolithography, [ 18 ] the addition of an intermediate hydrophilic polymer layer, [ 19,20 ] and the employment of soft lithography to produce wettability patterns on the surface of the substrate. However, the aforementioned methods all involve the use of time‐consuming pretreatment or/and posttreatment of the substrate used for printing.…”

Section: Introductionmentioning

confidence: 99%

“…However, the aforementioned methods all involve the use of time-consuming pretreatment or/and posttreatment of the substrate used for printing. [7,14,15,19,21] Here, a method to overcome the difficulties of printing on hydrophobic substrates through stage heating has been developed. The method is an adaptation of stacked coin printing, a technique, which has been successful in the production of conductive lines on hydrophilic surfaces for, e.g., thin-film transistors [22] and conductive films.…”

Section: Introductionmentioning

confidence: 99%

“…However, the aforementioned methods all involve the use of time‐consuming pretreatment or/and posttreatment of the substrate used for printing. [ 7,14,15,19,21 ]…”

Section: Introductionmentioning

confidence: 99%

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Inkjet Printing on Hydrophobic Surface: Practical Implementation of Stacked Coin Strategy

Docherty,

Naderi,

Grau

et al. 2024

Adv Eng Mater

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While inkjet printing on many hydrophilic surfaces can be achieved through control of drop spacing and droplet deposition delay alone, the same for hydrophobic substrates prove to be challenging. The low surface energies of hydrophobic surfaces lead to dewetting, unwanted coalescence of wet drops, and bulging, preventing intact and uniform lines of low‐viscosity ink to form. In this paper, we have adapted the stacked coin strategy, a well‐established and successful technique for hydrophilic surfaces, for use on hydrophobic surfaces. Stacked coin morphology occurs when the time taken to deposit a subsequent overlapping droplet in a pattern is longer than the evaporation time of the prior droplet. On hydrophobic surfaces, it is considerably more challenging and the parameter window for successful printing is smaller than on hydrophilic surfaces, thus requiring in‐depth study to implement this methodology on hydrophobic surfaces. We conducted experiments using a custom‐built inkjet printer with variable stage speed and stage temperature, where silver nanoparticle ink was used to print on Teflon‐AF substrates. Our study identified the following regimes: isolated droplets, isolated multi‐droplets, broken line, true stacked coin, and delamination. The relationship between substrate temperature, drop spacing and droplet deposition delay controls the printability window of true stacked coin morphology and its surrounding regimes. The key to the success of this strategy on hydrophobic surfaces is rapid drying of individual droplets to minimize movement due to hydrophilic coalescence of overlapping dried and wet droplets. Our study identified 180⁰C as the critical temperature for instantaneous drying of the studied ink, and a maximum drop spacing of 20µm.This article is protected by copyright. All rights reserved.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…However, the aforementioned methods all involve the use of time‐consuming pretreatment or/and posttreatment of the substrate used for printing. [ 7,14,15,19,21 ]…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Inkjet Printing on Hydrophobic Surface: Practical Implementation of Stacked Coin Strategy

Docherty,

Naderi,

Grau

et al. 2024

Adv Eng Mater

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“…It has been reported that incorporating fluoro-containing moieties can reduce the dielectric constant and enhance hydrophobicity. ,,− Note that hydrophobicity is important for electronic materials since the D k value of water is about 80 at room temperature, therefore moisture absorption of a thermoset has a negative effect on dielectric constant. Among the fluoro-containing moieties, we focus on the symmetric tetrafluorophenylene moiety that will not increase the dipole moment due to an equal distribution of polarizable C–F bonds.…”

Section: Introductionmentioning

confidence: 99%

Tetrafluorophenylene-Containing Vinylbenzyl Ether-Terminated Oligo(2,6-dimethyl-1,4-phenylene ether) with Better Thermal, Dielectric, and Flame-Retardant Properties for Application in High-Frequency Communication

et al. 2022

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In an integrated circuit, signal propagation loss is proportional to the frequency, dissipation factor ( D f ), and square root of dielectric constant ( D k ). The loss becomes obvious as we move to high-frequency communication. Therefore, a polymer having low D k and D f is critical for copper-clad laminates at higher frequencies. For this purpose, a 4-vinylbenzyl ether phenoxy-2,3,5,6-tetrafluorophenylene-terminated OPE (VT-OPE) resin was synthesized and its properties were compared with the thermoset of commercial OPE-2St resin. The thermoset of VT-OPE shows a higher T g (242 vs 229 °C), a relatively high cross-linking density (1.59 vs 1.41 mmole cm –3 ), a lower coefficient of thermal expansion (55 vs 76 ppm/°C), better dielectric characteristic at 10 GHz ( D k values of 2.58 vs 2.75, D f values of 0.005 vs 0.006), lower water absorption (0.135 vs 0.312 wt %), and better flame retardancy (UL-94 VTM-0 vs VTM-1 with dropping seriously) than the thermoset of OPE-2St. To verify the practicability of VT-OPE for copper-clad laminate, a laboratory process was also performed to prepare a copper-clad laminate, which shows a high peeling strength with copper foil (5.5 lb/in), high thermal reliability with a solder dipping test at 288 °C (>600 s), and the time for delamination of the laminate in thermal mechanical analysis (TMA) at 288 °C is over 60 min.

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Visible light-induced crosslinking of unmodified gelatin with PEGDA for DLP-3D printable hydrogels

Zanon

Baruffaldi

Sangermano

et al. 2021

European Polymer Journal

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Aromatic poly(fluorocarbinol)s: Soluble, hydrophobic binders for inkjet formulations

Cited by 5 publications

References 29 publications

Inkjet Printing on Hydrophobic Surface: Practical Implementation of Stacked Coin Strategy

Inkjet Printing on Hydrophobic Surface: Practical Implementation of Stacked Coin Strategy

Tetrafluorophenylene-Containing Vinylbenzyl Ether-Terminated Oligo(2,6-dimethyl-1,4-phenylene ether) with Better Thermal, Dielectric, and Flame-Retardant Properties for Application in High-Frequency Communication

Visible light-induced crosslinking of unmodified gelatin with PEGDA for DLP-3D printable hydrogels

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