TY - JOUR
T1 - Temperature-responsive hydroxypropylcellulose based thermochromic material and its smart window application
AU - Yang, Yong-Sheng
AU - Zhou, Yang
AU - Boey, Freddy Yin Chiang
AU - Long, Yi
N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to <a href="mailto:[email protected]">[email protected]</a>.
PY - 2016
Y1 - 2016
N2 - Thermochromic materials are the most cost effective smart window materials and the organic hydrogel material has large solar modulating ability (ΔTsol) and the luminous transmittance (Tlum) compared with inorganic VO2 based materials. Here we report a green and new organic thermochromic material based on hydroxypropylcellulose. With increasing addition of NaCl from 0.5% (wt%) to 5% (wt%), the LCST (lower critical solution temperature) could reduce from 42 °C to 30 °C. The morphology change of freeze dried samples below and above LCST proves that the phase change of this hydroxypropylcellulose based hydrogel is due to the solubility change of the polymer in water. The fine-tuned recipe can give an outstanding solar modulating ability (ΔTsol) of 25.7% and high averaged Tlum of 67.4% with LCST of 38 °C. © The Royal Society of Chemistry 2016.
AB - Thermochromic materials are the most cost effective smart window materials and the organic hydrogel material has large solar modulating ability (ΔTsol) and the luminous transmittance (Tlum) compared with inorganic VO2 based materials. Here we report a green and new organic thermochromic material based on hydroxypropylcellulose. With increasing addition of NaCl from 0.5% (wt%) to 5% (wt%), the LCST (lower critical solution temperature) could reduce from 42 °C to 30 °C. The morphology change of freeze dried samples below and above LCST proves that the phase change of this hydroxypropylcellulose based hydrogel is due to the solubility change of the polymer in water. The fine-tuned recipe can give an outstanding solar modulating ability (ΔTsol) of 25.7% and high averaged Tlum of 67.4% with LCST of 38 °C. © The Royal Society of Chemistry 2016.
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U2 - 10.1039/c6ra12454b
DO - 10.1039/c6ra12454b
M3 - RGC 21 - Publication in refereed journal
SN - 2046-2069
VL - 6
SP - 61449
EP - 61453
JO - RSC Advances
JF - RSC Advances
IS - 66
ER -