Preliminary Study on Polishing SLA 3D-Printed ABS-Like Resins for Surface Roughness and Glossiness Reduction

Son, Jungyu; Lee, Hyunseop

doi:10.3390/mi11090843

Cited by 18 publications

(16 citation statements)

References 35 publications

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“…On the surface of SU-8 and ABS molds, respectively, a silicon layer [13] and siliconizing agent [14] are typically used. While the ABS-like resin surface is proven hydrophobic by Son and Lee [15], the unreacted resin monomers on the printed mold may hinder the PDMS curing process, necessitating pre-treatment.…”

Section: Comparison Of Mold Fabricationmentioning

confidence: 99%

Characterization of a 3D Printed Self-Powered Micropump Mould for Microfluidics Application

Asry

Sunhazim²,

Kamaruzaman³

et al. 2022

ARFMTS

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The number of words should not exceed 350 Self-powered infusion micropump is a non-mechanical micropumps for microfluidics application. A three- dimensional (3D) printing is an intelligent additive manufacturing technique that permits cheap, fast and accurate geometrically complex designs. In this study, a self-powered infusion micropump master mould was fabricated using stereolithography (SLA) 3D printing technique and was characterized accordingly. Furthermore, polydimethylsiloxane (PDMS) self-powered micropump from the 3D printed mould was successfully replicated using soft lithography technique. Optical microscope with i-Solution Lite imaging software was used for micropump mould dimensions characterization. It was found was that the smallest average percentage difference of 4.26 % was measured for straight inlet channel’s width between the actual mould and the computer-aided design (CAD). The average coefficient of variance (CV) for all micropump components dimensions was 3.22. It was found that the SLA 3D printing reduced manufacturing time and costs by 30.43 % and 82.84 % respectively in comparison to the standard SU-8 mould. In conclusion, SLA 3D printing technology is a viable alternative to master mould fabrication in self-infusion micropump production since it accurately reproduced the design from the CAD input.

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Section: Comparison Of Mold Fabricationmentioning

confidence: 99%

Characterization of a 3D Printed Self-Powered Micropump Mould for Microfluidics Application

Asry

Sunhazim²,

Kamaruzaman³

et al. 2022

ARFMTS

View full text Add to dashboard Cite

show abstract

“…This is a hybrid process that flattens the surface of a material through a mechanical material removal method and chemical surface reactions. This method uses abrasive particles located on the real contact area (RCA) between the material to be polished and a polishing pad [127]. In their experiments, Son et al used two polishing methods to reduce the surface roughness and increase the glossiness of SLA-printed ABS-like resin.…”

Section: Sla Materials and Post-processingmentioning

confidence: 99%

“…However, in the case of the two-step polishing, the surface roughness was reduced more quickly, and the glossiness increased relatively faster. Figure 7 demonstrates the surface roughness assessments of 3D-printed ABS-like resin [127]. (5) Mineral oil finish.…”

Section: Sla Materials and Post-processingmentioning

confidence: 99%

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Post-Processing of 3D-Printed Polymers

et al. 2021

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Additive manufacturing, commonly known as 3D printing, is an advancement over traditional formative manufacturing methods. It can increase efficiency in manufacturing operations highlighting advantages such as rapid prototyping, reduction of waste, reduction of manufacturing time and cost, and increased flexibility in a production setting. The additive manufacturing (AM) process consists of five steps: (1) preparation of 3D models for printing (designing the part/object), (2) conversion to STL file, (3) slicing and setting of 3D printing parameters, (4) actual printing, and (5) finishing/post-processing methods. Very often, the 3D printed part is sufficient by itself without further post-printing processing. However, many applications still require some forms of post-processing, especially those for industrial applications. This review focuses on the importance of different finishing/post-processing methods for 3D-printed polymers. Different 3D printing technologies and materials are considered in presenting the authors’ perspective. The advantages and disadvantages of using these methods are also discussed together with the cost and time in doing the post-processing activities. Lastly, this review also includes discussions on the enhancement of properties such as electrical, mechanical, and chemical, and other characteristics such as geometrical precision, durability, surface properties, and aesthetic value with post-printing processing. Future perspectives is also provided towards the end of this review.

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“…The printing material used was WaterClear ® Ultra 10,122 from DSM Somos ® , a resin with ABS-like properties. DSM’s Somos ® WaterClear Ultra 10,122 is a next-generation optically clear resin with good temperature resistance [ 34 ]. It produces colourless, functional, accurate parts that simulate an acrylic appearance.…”

Section: Introductionmentioning

confidence: 99%

A full-face mask for protection against respiratory infections

et al. 2022

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Background Aerosols and droplets are the transmission routes of many respiratory infectious diseases. The COVID-19 management guidance recommends against the use of nebulized inhalation therapy directly in the emergency room or in an ambulance to prevent possible viral transmission. The three-dimensional printing method was used to develop an aerosol inhalation treatment mask that can potentially prevent aerosol dispersion. We conducted this utility validation study to understand the practicability of this new nebulizer mask system. Results The fit test confirmed that the filter can efficiently remove small particles. The different locations of the mask had an excellent fit with a high pressure making a proper face seal usability. The full-face mask appeared to optimize filtration with pressure and is an example of materials that perform well for improvised respiratory protection using this design. The filtering effect test confirmed that the contamination of designated locations could be protected when using the mask with filters. As in the clinical safety test, a total of 18 participants (10 [55.6%] females; aged 33.1 ± 0.6 years) were included in the final analysis. There were no significant changes in SPO2, EtCO2, HR, SBP, DBP, and RR at the beginning, 20th, 40th, or 60th minutes of the test (all p >.05). The discomfort of wearing a mask increased slightly after time but remained within the tolerable range. The vision clarity score did not significantly change during the test. The mask also passed the breathability test. Conclusion The results of our study showed that this mask performed adequately in the fit test, the filtering test, and the clinical safety test. The application of a full-face mask with antiviral properties, together with the newly designed shape of a respirator that respects the natural curves of a human face, will facilitate the production of personal protective equipment with a highly efficient filtration system. Methods We conducted three independent tests in this validation study: (1) a fit test to calculate the particle number concentration and its association with potential leakage; (2) a filtering effect test to verify the mask’s ability to contain aerosol spread; and (3) a clinical safety test to examine the clinical safety, comfortableness, and visual clarity of the mask.

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Preliminary Study on Polishing SLA 3D-Printed ABS-Like Resins for Surface Roughness and Glossiness Reduction

Cited by 18 publications

References 35 publications

Characterization of a 3D Printed Self-Powered Micropump Mould for Microfluidics Application

Characterization of a 3D Printed Self-Powered Micropump Mould for Microfluidics Application

Post-Processing of 3D-Printed Polymers

A full-face mask for protection against respiratory infections

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