Imperial College London


Faculty of EngineeringDepartment of Chemical Engineering

Reader in Particle Technology



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BibTex format

author = {Spathi, C and Young, N and Heng, JYY and Vandeperre, LJM and Cheeseman, CR},
doi = {10.1016/j.matlet.2014.11.123},
journal = {Materials Letters},
pages = {80--83},
title = {A simple method for preparing super-hydrophobic powder from paper sludge ash},
url = {},
volume = {142},
year = {2014}

RIS format (EndNote, RefMan)

AB - Paper sludge ash (PSA) is a readily available waste material generated by the paper recycling industry. This work reports on the production of hydrophobic powders by dry milling PSA in the presence of a fatty acid surface functionalising agent. Optimum laboratory processing involves dry milling for 8 h with a 4 wt.% addition of stearic acid and this produced a super-hydrophobic powder with a water contact angle of 153°. Different chain length fatty acids were investigated but stearic acid produced the highest hydrophobicity. The super-hydrophobicity of PSA results from the micro-particulate texture induced by dry milling with simultaneous formation of calcium stearate self-assembling surface monolayers chemically bonded to fracture surfaces.
AU - Spathi,C
AU - Young,N
AU - Heng,JYY
AU - Vandeperre,LJM
AU - Cheeseman,CR
DO - 10.1016/j.matlet.2014.11.123
EP - 83
PY - 2014///
SN - 1873-4979
SP - 80
TI - A simple method for preparing super-hydrophobic powder from paper sludge ash
T2 - Materials Letters
UR -
VL - 142
ER -