Study on the liquid crystal display mask photo‐curing of photosensitive resin reinforced with graphene oxide

2020 ◽  
Vol 137 (47) ◽  
pp. 49538
Author(s):  
Jiaqing Xie ◽  
Yunsheng He ◽  
Wenqiang Ma ◽  
Tao Liu ◽  
Jun Chen
Keyword(s):  
Graphene Oxide ◽  
Liquid Crystal ◽  
Liquid Crystal Display ◽  
Photosensitive Resin ◽  
Photo Curing

scholarly journals Design and Synthesis of Free-Radical/Cationic Photosensitive Resin Applied for 3D Printer with Liquid Crystal Display (LCD) Irradiation

Polymers ◽  
2020 ◽  
Vol 12 (6) ◽  
pp. 1346
Author(s):  
Junyang Shan ◽  
Zijun Yang ◽  
Guoguang Chen ◽  
Yang Hu ◽  
Ying Luo ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Free Radical ◽  
3D Printing ◽  
Liquid Crystal Display ◽  
Uv Curing ◽  
Interpenetrating Polymer Network ◽  
Radical Mechanism ◽  
Covalent Bonds ◽  
Photosensitive Resin ◽  
Heating Treatment

In this work, aiming at a UV-curing 3D printing process with liquid crystal display (LCD) irradiation, a novel free-radical/cationic hybrid photosensitive resin was designed and prepared. After testing, the results showed that the acrylate monomers could be polymerized through a free-radical mechanism, while the epoxides were polymerized by a cationic curing mechanism. During the process of UV-curing, the acrylate and epoxide polymers were crosslinked and further locked together by non-covalent bonds. Therefore, an interpenetrating polymer network (IPN) structure could be formed through light-curing 3D-printing processes. Fourier transform infrared spectroscopy (FT-IR) revealed that the 3,4-epoxy cyclohexyl methyl-3,4-epoxy cyclohexyl formate and acrylic resin were both successfully involved in the UV-curing process. Furthermore, in order to make the 3D-printed objects cured completely, post-processing was of great importance. The results from the systematic study of the dynamic mechanical properties of the printed objects showed that the heating treatment process after UV irradiation was very necessary and favorable for the complete cationic polymerization of UV-6110 induced by Irgacure 261. The optimum heating treatment conditions were achieved at a temperature of 70 °C for 3 h.

scholarly journals Study on the Preparation and Test of Hydrodynamic Focusing Microfluidic Chip Fabricated by Liquid Crystal Display Mask Photo-Curing Method

IEEE Access ◽  
2021 ◽  
Vol 9 ◽  
pp. 11533-11542
Author(s):  
Jiaqing Xie ◽  
Xiaoyu Meng ◽  
Haoran Pang ◽  
Qian Yu ◽  
Zhikang Zhou ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Microfluidic Chip ◽  
Liquid Crystal Display ◽  
Hydrodynamic Focusing ◽  
Curing Method ◽  
Photo Curing

scholarly journals Graphene oxide 2D films for integrated waveguide and ring resonator polarizers

2020 ◽  
Author(s):  
David Moss
Keyword(s):  
Graphene Oxide ◽  
Liquid Crystal ◽  
Ring Resonator ◽  
Liquid Crystal Display ◽  
Ring Resonators ◽  
Optical Systems ◽  
Resonant Cavities ◽  
Polarization Control ◽  
Core Components ◽  
Polarization Division Multiplexing

Polarization selective devices, such as polarizers and polarization selective resonant cavities (e.g., gratings and ring resonators), are core components for polarization control in optical systems and find wide applications in polarization-division-multiplexing, coherent optical detection, photography, liquid crystal display, and optical sensing. In this paper, we demonstrate integrated waveguide polarizers and polarization-selective micro-ring resonators (MRRs) incorporated with graphene oxide (GO).

Sistem Kontrol Pengisian Air Otomatis Dengan Dua Sumber Suplai Berbasis Mikrokontroler (ATmega 8535)

2016 ◽  
Vol 1 (2) ◽  
pp. 84 ◽  
Author(s):  
Sumardi Sumardi ◽  
Muhammad Nur Anggoro
Keyword(s):  
Liquid Crystal ◽  
Liquid Crystal Display

Sistem kontrol pengisian air otomatis dengan dua sumber suplai berbasis mikrokontroler merupakan sebuah sistem yang dapat digunakan untuk mengendalikan level air pada sebuah bak penampungan secara otomatis. Bahan dan alat yang digunakan dalam sistem kontrol berupa mikrokontroler ATmega 8535, sensor air, downloader DI-USB AVR ISP V2/DI-USB to Serial TTL, liquid crystal display, transisor, resistor, pompa air, adaptor 12 volt dc, saklar, dan program editor code vision avr. Metode yang digunakan dalam pembuatan sistem kontrol pengisian air otomatis ini adalah melakukan percobaan dan ujicoba peralatan secara langsung. Sistem kontrol ini bekerja dalam dua kondisi yaitu ketika air dalam bak penampungan melewati batas bawah maka bak penampungan akan terisi secara otomatis dan ketika telah mencapai batas atas yang ditentukan maka suplai air ke bak penampungan akan berhenti, selanjutnya ditambah pengaturan dari dua buah sumber air sebagai suplai yang akan bekerja sesuai dengan prioritasnya. Proses tersebut dilakukan oleh sensor bagian input yang berupa sensor air pada masukan sumber air yang kemudian diproses oleh mikrokontroler terprogram. Hasil percobaan menunjukkan sensor air berhasil memberikan logika Low atau High pada keluarannya sebagai fungsinya untuk memberikan sinyal masukan pada port mikrokontrol. Pada kondisi high, sensor air mampu memberikan nilai tegangan 4,89 Volt DC untuk digunakan sebagai masukan mikrokontroler. Dan pada kondisi low, sensor air mampu memberikan nilai tegangan 0,11 Volt dc sebagai masukan mikrokontroler ketika elektroda tehubung dengan common oleh media air. Driver Masukan terbukti dapat digunakan untuk menggendalikan kerja dari motor pompa 220 V AC dan lampu indikator 12 V DC. Hasil yang dari sistem kontrol pengisian air ini adalah terjadinya pengurangan kerugian yang ditimbulkan karena masalah ketersediaan air dan juga mempermudah kegiatan dalam pengendalian ketersediaan air. Kata kunci : Sistem kontrol, pengisan air otomatis, mikrokontroler, sensor air.

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