Effect of the borax mass and pre-spray medium temperature on droplet size and velocity vector distributions of intermittently sprayed starchy solutions

2015 ◽  
Vol 17 (5) ◽  
pp. 3704-3714 ◽  
Author(s):  
Muhammad Yasin Naz ◽  
Shaharin Anwar Sulaiman ◽  
Bambang Ariwahjoedi
Keyword(s):  
Velocity Field ◽  
Droplet Size ◽  
Velocity Vector ◽  
Field Plot ◽  
Starch Solution ◽  
Medium Temperature ◽  
Tapioca Starch ◽  
Modified Tapioca Starch

The droplet size–velocity field plot of the modified tapioca starch solution atomized using an airless full cone nozzle.

scholarly journals Effect of Modified Tapioca Starch on Mechanical, Thermal, and Morphological Properties of PBS Blends for Food Packaging

Polymers ◽  
2018 ◽  
Vol 10 (11) ◽  
pp. 1187 ◽  
Author(s):  
Rafiqah Ayu ◽  
Abdan Khalina ◽  
Ahmad Harmaen ◽  
Khairul Zaman ◽  
Mohammad Jawaid ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Food Packaging ◽  
Hydrolytic Degradation ◽  
Free Water ◽  
Morphological Properties ◽  
Tapioca Starch ◽  
Food Container ◽  
Plastic Bags ◽  
Stretching Vibration ◽  
Modified Tapioca Starch

In this study, polybutylene succinate (PBS) was blended with five types of modified tapioca starch to investigate the effect of modified tapioca starch in PBS blends for food packaging by identifying its properties. Tensile and flexural properties of blends found deteriorated for insertion of starch. This is due to poor interface, higher void contents and hydrolytic degradation of hydrophilic starch. FTIR results show all starch/PBS blends are found with footprints of starch except OH stretching vibration which is absent in B40 blends. Besides, Broad O–H absorption in all specimens show that these are hydrogen bonded molecules and no free O–H bonding was found. SEM testing shows good interfacial bonding between PBS and starch except E40 blends. Therefore, poor results of E40 blends was expected. In TGA, a slightly weight loss found between 80 to 100 °C due to free water removal. Apart from this, insertion of all types of starch reduces thermal stability of blend. However, high crystallinity of starch/PBS blend observed better thermal stability but lower char yield. Starch A and B blends are suggested to be used as food wrap and food container materials while starch D blend is suitable for grocery plastic bags according to observed results.

Improvement of Hydrophobicity of Urea Modified Tapioca Starch Film with Lignin for Slow Release Fertilizer

2012 ◽  
Vol 626 ◽  
pp. 350-354 ◽  
Author(s):  
Sarwono Ariyanti ◽  
Zakaria Man ◽  
Mohammad Azmi Bustam
Keyword(s):  
Fourier Transform ◽  
Water Uptake ◽  
Slow Release ◽  
Fourier Transform Infrared ◽  
High Potential ◽  
Tapioca Starch ◽  
Chemically Modified ◽  
Slow Release Fertilizer ◽  
Urea Release ◽  
Modified Tapioca Starch

Tapioca starch was chemically modified with urea in the presence of borate as crosslinker and catalyst. Fourier transform infrared (FTIR) and viscosity were performed to measure qualitatively the reactivity of the mixture. To improve the hydrophobicity, 10% of lignin (10%L) was then added into the starch-urea-borate (SUB) system. The incorporation of lignin leads to lower water uptake film. It was found that lignin retards the urea release and the SUB10%L film is stable and stayed intact for one month after immersing in water which shows high potential as a biopolymer for slow release fertilizer.

Measurement and Characterization the Flocculation Processes by PIV

2013 ◽  
Vol 456 ◽  
pp. 644-647
Author(s):  
Jun Feng Gao
Keyword(s):  
Particle Image Velocimetry ◽  
Velocity Field ◽  
Velocity Vector ◽  
Field Data ◽  
Particle Image ◽  
Morphological Changes ◽  
In Situ Observation ◽  
Image Velocimetry ◽  
Flocculation Process

Particle image velocimetry (PIV) was applied to characterize the morphological changes of flocs and to acquired velocity field data in the flocculation process in Taylor-Couette reactor. By use of PIV the morphological of the flocs with ferric trichloride (FeCl3) could be characterized and described with good performance, the velocity vector also could be measurement. It was shown that the flocculation efficiencies reached the maximum values and the size of the generated flocs was the biggest when the roating speed was in the range between 20~60 rpm. It was demonstrated that PIV can be exploited as a useful tool in the in-situ observation the flocculation processes. Keywords: flocs morphology; flocculation efficiencies; velocity vector; PIV

scholarly journals Effect of Empty Fruit Brunch reinforcement in PolyButylene-Succinate/Modified Tapioca Starch blend for Agricultural Mulch Films

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Rafiqah S. Ayu ◽  
Abdan Khalina ◽  
Ahmad Saffian Harmaen ◽  
Khairul Zaman ◽  
N. Mohd Nurrazi ◽  
...  
Keyword(s):  
Tapioca Starch ◽  
Polybutylene Succinate ◽  
Mulch Films ◽  
Modified Tapioca Starch
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