Drawing upon reflectance behavior of woodland colors involving dark brown in the UV-Vis-IR bands, two colored pigments were used to print cotton/polyester Co/PET goods. Inorganic nanoparticles of TiO2, ZnO and AL2O3 were also loaded onto the printing formulation. The reflectance profile of treated samples was studied using Jasco V-670 reflectance spectrophotometer. SEM analysis of printed fabri...

Today, the economic consumption of biodegradable polymers is of capital importance in many applications. One of the most commonly used biopolymers is polylactic acid (PLA). The printability of the biodegradable film has not been fully investigated. This work tested the printability of polylactic acid (PLA) films and compared the print qualities to common packaging films like low density pol...

In this paper, the main activity was to investigate how different substrates, temperature of sintering and percentage of silver ink containing silver nanoparticles influence on Young’s modulus and hardness of printed silver thin samples. Samples were prepared by low cost ink-jet printing technique using Dimatix Material Printer on polyimide flexible substrate and slide glass. Characterization o...

With increasing structural and functional applications of 3D printed materials, their mechanical performance is highly demanded. So far, stressand strain-based experiments have been used to characterize the mechanical properties of fused deposition modeled (FDM) samples. In this work, a fracture-mechanics-based methodology was developed to characterize the interlayer adhesion of FDM 3D printed ...

For a long time, the detection and extraction of printed surface defects has been hot issue in print industry. Nowadays, defect large number products still relies on traditional image processing algorithms such as scale invariant feature transform (SIFT) oriented fast rotated brief (ORB), researchers need to design for specific products. At present, based object have applied but lots labeling s...

3D 프린팅은 다수의 레이어(layer)를 적층하여 물체를 제작하는 기법으로, 복잡한 형상을 가지는 비교적 쉽게 제작할 수 있다. 이를 건설 산업에 접목한 콘크리트 프린팅(3D concrete printing)은 타설 시 거푸집을 사용하지 않으며, 적은 작업량과 인력이 요구되므로 경제적인 시공이 가능하나, 출력된 프린팅 콘크리트는 일반 대비 다소 낮은 강도가 예상된다. 따라서, 본 연구에서는 시편의 물성을 분석하였다. 시편 출력을 위해 Ultimaker Cura 소프트웨어로 형상 및 출력 경로를 설계하고, 바탕으로 프린터를 제어하는 G-code를 생성하였다. 연구에서 사용된 프린터의 성능과 콘크리트의 적층성, 유동성 등을 고려하여 최적의 배합비를 선정하였고, 출력에 활용하였다. 동일한 치수를 몰드 시편...

This article is focused on the determination of lidocaine hydrochloride as a local anaesthetic drug. A potentiometric method based on modified screen-printed and modified carbon paste ion-selective electrodes was described for the determination of lidocaine hydrochloride in different pharmaceutical preparations. It was based on potentiometric titration of lidocaine hydrochloride using modified ...