Tolidine diisocyanate TODI / 3,3'-Dimethyl-4,4'-biphenylene diisocyanate CAS NO. 91-97-4

TODI / 3,3'-Dimethyl-4,4'-biphenylene diisocyanate, CAS nọmba 91-97-4, bụ ihe mgbakwunye zuru ụwa ọnụ maka imeziwanye ihe nrụzi na kemịkal na urethane elastomers. Ihe mgbanaka benzene abụọ dị na molecule TODI nwere usoro ihe atụ. N'ihi mgbochi siri ike nke otu o-methyl, mmeghachi omume mmeghachi omume dị ala karịa nke TDI na MDI.

N'ịtụle NDI dabeere na polyurethane elastomers, elastomers dabere na TODI, polyols oligomer na MOCA nwere ihe anụ ahụ yiri ya, dị ka nguzogide okpomọkụ dị mma, nguzogide hydrolysis na ihe eji arụ ọrụ. N'iji ya tụnyere rubbers, plastics na metals, TODI-based elastomers nwere ọtụtụ uru ndị ọzọ, ha na-adịgide adịgide, okpomọkụ na-eguzogide na hydrolysis resistance. Elastomers dabere na TODI na-enye akụrụngwa akụrụngwa dị elu ka etinyere n'ọrụ n'okpuru ọnọdụ siri ike na/ma ọ bụ gburugburu ebe obibi. Ọzọkwa, n'ihi na ya ogologo ndụ ite, TODI dabeere prepolymer mfe ijikwa tụnyere NDI dabeere na ngwaahịa.