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Plasticizing effect of acetylated castor oil on castor oil‐based, moisture‐cured polyurethane film
Author(s) -
Mukherjea R. N.,
Saha K. K.,
Sanyal S. K.
Publication year - 1978
Publication title -
journal of the american oil chemists' society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.512
H-Index - 117
eISSN - 1558-9331
pISSN - 0003-021X
DOI - 10.1007/bf02682453
Subject(s) - castor oil , polyurethane , materials science , ethylene glycol , plasticizer , ultimate tensile strength , monoglyceride , toluene diisocyanate , polyvinyl alcohol , polymer chemistry , organic chemistry , chemistry , composite material , fatty acid
Moisture‐cured polyurethane films have been prepared by reaction between toluene diisocyanate and castor oil or derivatives such as castor oil diethanol amide, castor oil monoglyceride, ethylene glycol monoricinoleate, and propylene glycol monoricinoleate. Effect of acetylated castor oil as an internal plasticizer on the resulting urethane films has been studied. Catalytic effect of 3–5% triethanol amine on curing of plasticized films has been noted. Plasticized polyurethane films show good tensile strength (105–550 kg/cm 2 ) and elongation (15–215%) properties, having high melting point (210–272 C) and good resistance to solvents and chemicals.