PMID- 27531048
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20180501
LR  - 20181113
IS  - 2045-2322 (Electronic)
IS  - 2045-2322 (Linking)
VI  - 6
DP  - 2016 Aug 17
TI  - Photo Initiated Chemical Vapour Deposition To Increase Polymer Hydrophobicity.
PG  - 31574
LID - 10.1038/srep31574 [doi]
LID - 31574
AB  - Apple growers face new challenges to produce organic apples and now many cover 
      orchards with high-density polyethylene (HDPE) nets to exclude insects, rather 
      than spraying insecticides. However, rainwater- associated wetness favours the 
      development of apple scabs, Venturia inaequalis, whose lesions accumulate on the 
      leaves and fruit causing unsightly spots. Treating the nets with a 
      superhydrophobic coating should reduce the amount of water that passes through 
      the net. Here we treat HDPE and polyethylene terephthalate using photo-initiated 
      chemical vapour deposition (PICVD). We placed polymer samples in a quartz tube 
      and passed a mixture of H2 and CO through it while a UVC lamp (254 nm) 
      illuminated the surface. After the treatment, the contact angle between water 
      droplets and the surface increased by an average of 20 degrees . The contact angle of 
      samples placed 70 cm from the entrance of the tube was higher than those at 45 cm 
      and 20 cm. The PICVD-treated HDPE achieved a contact angle of 124 degrees . Nets spray 
      coated with a solvent-based commercial product achieved 180 degrees  but water ingress 
      was, surprisingly, higher than that for nets with a lower contact angle.
FAU - Berard, Ariane
AU  - Berard A
AD  - Department of Chemical Engineering, Ecole Polytechnique de Montreal, Montreal, 
      Quebec H3C 3A7, Canada.
FAU - Patience, Gregory S
AU  - Patience GS
AD  - Department of Chemical Engineering, Ecole Polytechnique de Montreal, Montreal, 
      Quebec H3C 3A7, Canada.
FAU - Chouinard, Gerald
AU  - Chouinard G
AD  - Institut de Recherche et de Developpement en Agroenvironnement, 
      Saint-Bruno-de-Montarville, Quebec J3V 0G7, Canada.
FAU - Tavares, Jason R
AU  - Tavares JR
AD  - Department of Chemical Engineering, Ecole Polytechnique de Montreal, Montreal, 
      Quebec H3C 3A7, Canada.
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20160817
PL  - England
TA  - Sci Rep
JT  - Scientific reports
JID - 101563288
EIN - Sci Rep. 2017 Feb 17;7:39422. PMID: 28211490
PMC - PMC4987658
EDAT- 2016/08/18 06:00
MHDA- 2016/08/18 06:01
PMCR- 2016/08/17
CRDT- 2016/08/18 06:00
PHST- 2016/04/28 00:00 [received]
PHST- 2016/07/19 00:00 [accepted]
PHST- 2016/08/18 06:00 [entrez]
PHST- 2016/08/18 06:00 [pubmed]
PHST- 2016/08/18 06:01 [medline]
PHST- 2016/08/17 00:00 [pmc-release]
AID - srep31574 [pii]
AID - 10.1038/srep31574 [doi]
PST - epublish
SO  - Sci Rep. 2016 Aug 17;6:31574. doi: 10.1038/srep31574.