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Start Over Author "Tanthapanichakoon, Wiwut" Publisher hosokawa powder technology foundation
6 results on '"Tanthapanichakoon, Wiwut"'

3. Preparation and Properties of Spherical Natural Rubber/Silica Composite Powders via Spray Drying.

Author

Siah Ying Tang, Sopanon, Prachaya, Tanthapanichakoon, Wiwut, and Soottitantawat, Apinan

Subjects
POLYLACTIC acid, RUBBER, SPRAY drying, RUBBER powders, MICROENCAPSULATION, SILICA
Abstract

In this work, composite powders of natural rubber/silica (NR-SiO2) were prepared via sol-gel and spray drying method. The morphology and physical properties of resultant rubber composite powders were characterized by scanning electron microscopy with energy dispersive X-ray spectrometry, laser light scattering particle sizer and thermogravimetric analyzer. The results showed that spray-dried NR-SiO2 particles were spherical in shape with diameter of less than 10 μm, with silica on the outer layer. The particle size was found to increase gradually with the increase in NR/Si mass ratio. Marginal growth in particle size was observed with increasing feed flow rate. Increasing inlet air temperature improved the latex particle encapsulation by silica layer while maintaining the final particle size. The mechanical properties of NR-SiO2 powders-filled polylactic acid (PLA) composite increase gradually with the addition of dried particles of higher rubber content. However, the composite exhibited relatively lower or reduced tensile strength and elongation at break compared to the host PLA polymer. This could be attributed to poor filler dispersion associated with weak filler/matrix interaction effect occurring during meltcompounding process. [ABSTRACT FROM AUTHOR]

Published
2020
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4. Trend of Nanoparticle Technology in ASEAN with Emphasis on Thailand

Author

TANTHAPANICHAKOON, WI, Tanthapanichakoon, Wiwut, Charinpanitkul, Tawatchai, and Faungnawakij, Kajornsak

Subjects
Materials science, nanostructure, General Chemical Engineering, nanoparticle, cnt, General Engineering, Nanoparticle, Nanotechnology, General Chemistry, asean, lcsh:Technology (General), lcsh:T1-995, lcsh:QC770-798, General Materials Science, nanomaterial, lcsh:Nuclear and particle physics. Atomic energy. Radioactivity
Abstract

First we survey the scope and level of research activities in nanoparticle technology (NPT) in ASEAN by looking at relevant international journal publications (2006–2012) in terms of absolute numbers (AN), numbers of publications per million population (PMP) and per billion USD GDP (PBG). Obviously, the statistics show that, within ASEAN, the strength of Singapore covers a wide range of nanotechnology fields and applications, including carbon materials, biosensors, bioelectronics, and pharmaceutics. Malaysia places emphasis on alloys & compounds, carbon materials, and separation technology. Thailand’s emphasis is on molecular modeling, carbon materials, and biosensors. When classification is made on the morphology of nanoparticles mentioned in the titles, the topmost are nanotubes (including CNT, SWCNT, MWCNT) at 392 out of 612 (64.1%), followed by generic nanoparticle/nanopowder and nanofiber (including nanowire, nanorods). Next we look closer at 2 nanoparticle R&D organizations in Thailand, namely, CEPT (CU) and NANOTEC together with their alliances. The interest in nanotechnology of SCG (Siam Cement Group), a leading Thai industrial conglomerate, will also be briefly introduced. .

Published
2013

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