Studies on polyurethane potting compound based on isocyanurate of aliphatic diisocyanate for fabrication of a haemodialyser.
Polyurethane potting compounds based on multifunctional isocyanurate of aliphatic diisocyanate, hexamethylene diisocyanate (HDI-IC) as Component A and polypropylene glycol, polyethylene glycol and castor oil (Component B) were prepared as potential potting compounds for the fabrication of a haemodialyser. The setting characteristics of the potting compounds having isocyanate index 2.54 are better than those of the compounds having 1.77. The ageing stability of castor oil and PPG-based potting compounds having isocyanate index 2.54 is better than that of PEG oil-based potting compounds. Appreciable hydrolytic, oxidative and chemical stability could be observed with HDI-IC/PPG/2.54 potting compounds for development of haemodialyser, oxygenator, etc.
Thomas
V
V
Polymer Division, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, India.
Jayabalan
M
M
Sandhya
S
S
D003485:Cyanates / Q000737:chemistry*; D017953:Isocyanates; D008422:Materials Testing; D008970:Molecular Weight; D011140:Polyurethanes; D006435:Renal Dialysis / Q000295:instrumentation*; D017550:Spectroscopy, Fourier Transform Infrared
D003485:Cyanates; D017953:Isocyanates; D011140:Polyurethanes; C015262:1,6-hexamethylene diisocyanate