Effects of Hydrophobic Coatings on Non-Isothermal Ice Crystallization in PEMFC GDMS

2021 ◽  
Vol MA2021-02 (36) ◽  
pp. 1043-1043
Author(s):  
Wenmei Liu ◽  
Maria Victoria Manzi Orezzoli ◽  
Thomas J. Schmidt ◽  
Pierre Boillat
Crystals ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 68
Author(s):  
Mingtang Tan ◽  
Jun Mei ◽  
Jing Xie

Although freezing has been used to delay the deterioration of product quality and extend its shelf life, the formation of ice crystals inevitably destroys product quality. This comprehensive review describes detailed information on the effects of ice crystals on aquatic products during freezing storage. The affecting factors (including nucleation temperature, freezing point, freezing rate, and temperature fluctuation) on the size, number, distribution, and shape of ice crystals are also elaborated in detail. Meanwhile, the corresponding technologies to control ice crystals have been developed based on these affecting factors to control the formation of ice crystals by inhibiting or inducing ice crystallization. In addition, the effects of ice crystals on the water, texture, and protein of aquatic products are comprehensively discussed, and the paper tries to describe their underlying mechanisms. This review can provide an understanding of ice crystallization in the aquatic products during freezing and contribute more clues for maintaining frozen food quality.


Coatings ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 151
Author(s):  
Yuyang Liu ◽  
Chang-Hwan Choi

Sand, a cheap and naturally abundant particulate material, was modified with photocatalytic and hydrophobic coatings to reduce evaporation loss and facilitate the purification of water. The first-level photocatalytic coatings (TiO2 or ZnO nanocrystals) rendered nanoscale roughness on the surface of the sand. The additional second-level hydrophobic coating of a self-assembled monolayer of octyltrimethoxysilane (OTS) made the sand particles superhydrophobic because of the nanoscale roughness imposed by the nanocrystals. The superhydrophobic sand particles, floating on the free surface of water due to their superhydrophobicity, significantly reduced the evaporation loss of water by 60%–90% in comparison to an uncovered water surface. When the outer hydrophobic coatings are weathered or disengaged, the inner photocatalytic coatings become exposed to water. Then, the sand particles act as photocatalysts to degrade the contaminants in water under solar radiation.


Author(s):  
Petr Shkinev ◽  
Alina Evdokimova ◽  
Fedor V Drozdov ◽  
Lev L Gervits ◽  
Aziz M Muzafarov
Keyword(s):  

2013 ◽  
Vol 58 (1) ◽  
pp. 897-905 ◽  
Author(s):  
T. J. Dursch ◽  
J. F. Liu ◽  
G. J. Trigub ◽  
C. J. Radke ◽  
A. Z. Weber

2015 ◽  
Vol 12 (11) ◽  
pp. 1271-1283 ◽  
Author(s):  
Dimitrios A. Dragatogiannis ◽  
Elias Koumoulos ◽  
Kosmas Ellinas ◽  
Angeliki Tserepi ◽  
Evangelos Gogolides ◽  
...  

Langmuir ◽  
2007 ◽  
Vol 23 (10) ◽  
pp. 5505-5514 ◽  
Author(s):  
Mojca Fir ◽  
Boris Orel ◽  
Angela Šurca Vuk ◽  
Aljaž Vilčnik ◽  
Robi Ješe ◽  
...  

2016 ◽  
Vol 23 (2) ◽  
pp. 1038-1047 ◽  
Author(s):  
Jianlin Hu ◽  
Binhuan Lan ◽  
Ke Xu ◽  
Xingliang Jiang ◽  
Zhijin Zhang ◽  
...  

Desalination ◽  
1987 ◽  
Vol 67 ◽  
pp. 107-126 ◽  
Author(s):  
H.F. Wiegandt ◽  
A. Madani ◽  
P. Harriott

Author(s):  
Jim J. Miller ◽  
Mallory Owen ◽  
Ben Ellert ◽  
Xueming Yang ◽  
Craig F. Drury ◽  
...  

Soil water repellency (SWR) was measured for a 28 yr field study under irrigation on a clay loam Dark Brown soil in southern Alberta. The objectives were to study the effect of legume-cereal crop rotations, feedlot manure, and phosphorus (P) fertilizer application on soil hydrophobicity (SH) and soil water repellency index (RI) under irrigation. Mean SH and RI were similar (P > 0.05) for a legume-cereal and cereal rotation, and were unaffected by P fertilization. However, P fertilization shifted the RI classification from slight to sub-critical. In contrast, SH was significantly greater for manured than non-manured treatments, while RI was unaffected. Soil organic carbon (SOC) concentration was significantly (P ≤ 0.05) correlated with SH (r=0.74), but not with RI (r=-0.17). This suggested a closer association between the quantity of SOC and quantity of hydrophobic compounds (SH method) compared to the hydrophobic coatings inhibiting infiltration of water (RI method). No significant correlation between SH and RI (r=-0.09) suggests that SH is not a good predictor of SWR using the RI method. Overall, manure application increased SH and P fertilization shifted the RI classification from slight to sub-critical. In contrast, legume-cereal rotations had no influence on SH and SWR using RI method compared to continuous cereal.


Author(s):  
Alba Covelo ◽  
Carmina Menchaca ◽  
Miriam Flores ◽  
Pilar Rodríguez‐ Rojas ◽  
Miguel Hernandez‐Gallegos ◽  
...  

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