Zobrazeno 1 - 6
of 6
pro vyhledávání: '"Isbe van der Westhuizen"'
Publikováno v:
Scientific Reports, Vol 7, Iss 1, Pp 1-11 (2017)
Abstract A Hill-type time-response curve was derived using a single-step chemical kinetics approximation. The rate expression for the transformation is a differential equation that provides an interpolation formula between the logistic growth curve a
Externí odkaz:
https://doaj.org/article/5f95e45c60be4a42ab70ecd2253f8e8c
Publikováno v:
Fuel. 219:126-131
Biodiesel was prepared using base catalyzed methanolysis of sunflower oil. The oxidative stability of the neat biodiesel, as well as samples spiked with 0.15 wt% antioxidant was quantified by induction periods (IP) obtained with the Rancimat method a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::49223ef5ce3dda1f3ed769c3b3072d30
https://doi.org/10.1016/j.fuel.2018.01.086
https://doi.org/10.1016/j.fuel.2018.01.086
Publikováno v:
Thermochimica Acta. 633:116-121
It is conventional to quantify the oxidative stability of oils and biodiesel through an induction time determined by a Rancimat instrument. European Standard EN 14112 for the Rancimat method describes two procedures for determining this induction per
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6a732807964f6efa11c48098f418d95a
https://doi.org/10.1016/j.tca.2016.03.023
https://doi.org/10.1016/j.tca.2016.03.023
Autor:
Isbe Van der Westhuizen, F.J.W.J. Labuschagne, Walter Wilhelm Focke, Mikhail David Royeppen, Dan Matlhomola Molefe, Harry Charles Wright
Publikováno v:
Polymer Degradation and Stability. 113:46-54
The layered double hydroxide ([Mg0.667Al0.333(OH)2](CO3)0.167·mH2O) (LDH) has found application as a heat stabiliser for PVC. Derivatives of this compound were synthesised using a hydrothermal method. Emulsion grade PVC was plasticised with 100 phr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ae2c5984490f00ea13b4a7349f24623c
https://doi.org/10.1016/j.polymdegradstab.2015.01.016
https://doi.org/10.1016/j.polymdegradstab.2015.01.016
Autor:
Judy K. Reddy, Walter Wilhelm Focke, Isbe Van der Westhuizen, Khomotso T. Nshoane, Adriaan S. Luyt, A.B. Lofte Grobler
Publikováno v:
Fuel. 94:227-233
Biodiesels were prepared using base catalyzed methanolysis of sunflower, soybean and canola oils. Rancimat oxidative stability measurements showed that the induction period (IP) for neat canola biodiesel conformed to EN 14214, the European specificat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4887d814db920d301daa6746aa752047
https://doi.org/10.1016/j.fuel.2011.11.061
https://doi.org/10.1016/j.fuel.2011.11.061
Publikováno v:
Journal of Thermal Analysis and Calorimetry. 99:285-293
Oxidation induction times (OIT) and oxidation onset temperatures (OOT) of a low density polyethylene melt were evaluated in air using DSC. Good regression fits to OOT data were obtained using global values for the activation energy (E) that are speci
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::76c0886bb315ee911d3dc84e69523ab5
https://doi.org/10.1007/s10973-009-0097-1
https://doi.org/10.1007/s10973-009-0097-1