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Materials Congress 2018
Page 82
Nano Research & Applications
ISSN: 2471-9838
W o r l d C o n g r e s s o n
Materials Science & Engineering
A u g u s t 2 3 - 2 5 , 2 0 1 8
Am s t e r d a m , N e t h e r l a n d s
C
lay aerogel is a porous solid material with an extremely low density and high surface areas. It is usually fabricated from
an environmentally benign freeze-drying method and widely used for adsorbent application. One of the disadvantages of
clay aerogel is its fragility, thus silk sericin and calcium chloride (CaCl
2
) crosslinked pectin were chosen to improve not only the
mechanical strength but also the swelling behaviour of clay aerogel. Therefore, the aim of this research is to study the effects
of CaCl
2
on the properties of silk sericin/pectin/clay aerogel. The studied CaCl concentrations were 0.0005, 0.001, 0.002, and
0.003 mol Ca
2+
per gram pectin. According to the results, density increased with the addition of cations but still be in the range
of clay aerogel density. The mechanical properties showed that 0.002 Ca
2+
per gram pectin possessed the highest compressive
modulus. The surface area investigated by Brunauer–Emmett–Teller (BET) method decreased as the CaCl
2
concentrations were
increased. The morphology of aerogels from scanning electron microscopy (SEM) exhibited the rougher surfaces. Moreover, the
observed swelling behaviour in water was less with Ca
2+
.
palitaa.cx@gmail.com rathanawan.k@chula.ac.thThe effect of calcium chloride crosslinking on
properties of silk sericin/pectin/clay aerogel
Palita Chuaysakul and Rathanawan Magaraphan
The Petroleum and Petrochemical College, Thailand
Nano Res Appl 2018, Volume: 4
DOI: 10.21767/2471-9838-C4-018