scholarly journals Time Function DualPDA Study of Spray Growth and Droplet Size-Velocity Profiles of Chemically Modified Tapioca Starch

2015 ◽  
Vol 15 (5) ◽  
pp. 1699-1711
Author(s):  
Muhammad Yasin Naz ◽  
Shaharin Anwar Sulaiman ◽  
Zakaria Man
2012 ◽  
Vol 626 ◽  
pp. 350-354 ◽  
Author(s):  
Sarwono Ariyanti ◽  
Zakaria Man ◽  
Mohammad Azmi Bustam

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.


2015 ◽  
Vol 17 (5) ◽  
pp. 3704-3714 ◽  
Author(s):  
Muhammad Yasin Naz ◽  
Shaharin Anwar Sulaiman ◽  
Bambang Ariwahjoedi

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


Polymers ◽  
2018 ◽  
Vol 10 (11) ◽  
pp. 1187 ◽  
Author(s):  
Rafiqah Ayu ◽  
Abdan Khalina ◽  
Ahmad Harmaen ◽  
Khairul Zaman ◽  
Mohammad Jawaid ◽  
...  

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.


2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Rafiqah S. Ayu ◽  
Abdan Khalina ◽  
Ahmad Saffian Harmaen ◽  
Khairul Zaman ◽  
N. Mohd Nurrazi ◽  
...  

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