Environmentally friendly patterning of molecular waterwheel (Noria) in supercritical carbon dioxide

2009 ◽  
Vol 19 (26) ◽  
pp. 4622 ◽  
Author(s):  
Manabu Tanaka ◽  
Abhinav Rastogi ◽  
Hiroto Kudo ◽  
Daisuke Watanabe ◽  
Tadatomi Nishikubo ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Supercritical Carbon Dioxide ◽  
Environmentally Friendly ◽  
Supercritical Carbon

scholarly journals Hydrocarbon based stabilisers for the synthesis of cross-linked poly(2-hydroxyethyl methacrylate) particles in supercritical carbon dioxide

2019 ◽  
Vol 10 (42) ◽  
pp. 5760-5770 ◽  
Author(s):  
Rahmet Parilti ◽  
Alba Castañon ◽  
Muriel Lansalot ◽  
Franck D'Agosto ◽  
Christine Jérôme ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Supercritical Carbon Dioxide ◽  
Environmentally Friendly ◽  
Hydroxyethyl Methacrylate ◽  
Environmentally Friendly Process ◽  
Supercritical Carbon

Novel polymeric stabilisers were designed for the development of an environmentally-friendly process to prepare well-defined cross-linked particles of poly(2-hydroxyethylmethacrylate) (PHEMA).

scholarly journals Environmentally Friendly Surface Modification Treatment of Flax Fibers by Supercritical Carbon Dioxide

Molecules ◽  
2020 ◽  
Vol 25 (3) ◽  
pp. 438 ◽  
Author(s):  
Maria Carolina Seghini ◽  
Fabienne Touchard ◽  
Laurence Chocinski-Arnault ◽  
Vincent Placet ◽  
Camille François ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Supercritical Carbon Dioxide ◽  
Fragment Length ◽  
Interfacial Adhesion ◽  
Environmentally Friendly ◽  
Flax Fibers ◽  
Fragmentation Test ◽  
Ft Ir ◽  
Single Yarn ◽  
Supercritical Carbon

The present work investigates the effects of an environmentally friendly treatment based on supercritical carbon dioxide (scCO2) on the interfacial adhesion of flax fibers with thermoset matrices. In particular, the influence of this green treatment on the mechanical (by single yarn tensile test), thermal (by TGA), and chemical (by FT-IR) properties of commercially available flax yarns was preliminary addressed. Results showed that scCO2 can significantly modify the biochemical composition of flax fibers, by selectively removing lignin and hemicellulose, without altering their thermal stability and, most importantly, their mechanical properties. Single yarn fragmentation test results highlighted an increased interfacial adhesion after scCO2 treatment, especially for the vinylester matrix, in terms of reduced debonding and critical fragment length values compared to the untreated yarns by 18.9% and 15.1%, respectively. The treatment was less effective for epoxy matrix, for which debonding and critical fragment length values were reduced to a lesser extent, by 3.4% and 3.7%, respectively.

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