Hydrolysis of vegetable oils catalyzed by lipase extract powder from dormant castor bean seeds

2013 ◽  
Vol 44 ◽  
pp. 452-458 ◽  
Author(s):  
Matheus H.M. Avelar ◽  
Débora M.J. Cassimiro ◽  
Kádima C. Santos ◽  
Rui C.C. Domingues ◽  
Heizir F. de Castro ◽  
...  
2011 ◽  
Vol 415-417 ◽  
pp. 1164-1167 ◽  
Author(s):  
Hasleena Boontawee ◽  
Charoen Nakason ◽  
Azizon Kaesaman ◽  
Anoma Thitithammawong ◽  
Sopa Chewchanwuttiwong

Benzyl esters of fatty acids based on three types of vegetable oils (i.e., coconut, palm, and soybean oils) were in-house prepared. They were used as alternative rubber processing oil to replace conventional aromatic oil which has been banned by European community since December 2009. Fatty acids were first prepared by hydrolysis of vegetable oils and thereafter esterified with benzyl alcohol in the presence of sulfuric acid as a catalyst. The reaction based on molar ratio of fatty acid:benzyl alcohol:sulfuric acid was set at 1.5:1.0:0.05 gave yield of benzyl esters higher than 80%. Rubber compounds containing different types of benzyl ester were prepared according to the standard formulation of ASTM 3184. It was found that the processing oil in the form of benzyl esters is possible to use instead of aromatic oil in rubber formulation. Various parameters and properties include mixing energy, Mooney viscosity, curing, mechanical and dynamic mechanical properties of rubber compounds and vulcanizates have been investigated.


1986 ◽  
Vol 37 (12) ◽  
pp. 1879-1886 ◽  
Author(s):  
DAVID J. GIFFORD ◽  
HELENA C. IMESON ◽  
ELA THAKORE ◽  
J. DEREK BEWLEY

2019 ◽  
Vol 22 ◽  
pp. 101410
Author(s):  
Rafaela T. Lima ◽  
Alex M. Alves ◽  
Ariela V. de Paula ◽  
Heizir F. de Castro ◽  
Grazielle S.S. Andrade

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