DDI, CAS: 68239-06-5 Dimeryl Diisocyanate, Dimeryl-di- isocyanate
DDI bụ diisocyanate aliphatic pụrụ iche nke enwere ike ijikọ ya na ogige ndị nwere hydrogen na-arụ ọrụ iji kwadebe polymers.Ọ bụ ngwakọta nwere ogologo agbụ nke nwere ọkpụkpụ azụ abụba dị ka carbon dimerized 36.Ihe owuwu yinye bụ isi na-enye DDI mgbanwe dị elu, nguzogide mmiri na nsí dị ala karịa ndị ọzọ aliphatic isocyanates.DDI bụ mmiri mmiri na-enweghị viscosity dị ala, na-adị mfe nro n'ọtụtụ ihe mgbaze pola ma ọ bụ ndị na-abụghị pola.N'ihi na ọ bụ aliphatic isocyanate, ọ nwere ihe na-adịghị edo edo.
Gịnị bụ ojiji na uru nke DDI?
Enwere ike iji DDI kwadebe polymers nwere ogige hydrogen abụọ ma ọ bụ karịa na-arụ ọrụ, nke a pụrụ iji kwadebe polyurethane (urea) elastomers nwere ihe pụrụ iche, ndị na-agwọ ọrịa maka ndị na-emepụta rọketi siri ike, adhesives, sealants, finishing surface surface, akwụkwọ, akpụkpọ anụ na akwa akwa. ihe na-ekpuchi mmiri, ihe eletriki, onye na-ahụ maka ọgwụgwọ osisi, wdg.
1. DDI nwere atụmanya ngwa na ọgwụgwọ nke mmiri na-eme ka mmiri dị nro na ịrụ ọrụ dị nro.Ọ dị mfe ịmepụta emulsion mmiri siri ike na mmiri, nke nwere ike inye akwa akwa mgbanwe ogologo oge;dị ka ihe na-eme ka mmiri na-emepụta ihe, ọ na-enwe mmetụta dị mma na-eme ka mmiri dị mma ma nwee ike imeziwanye mmetụta nke mmiri na-emepụta ihe na-emepụta fluoride na mmanụ mmanụ.
2. Polyurethane resins na polyurea resins nke sitere na DDI nwere ihe na-adịghị na-acha odo odo, ezigbo elasticity na ductility, ike dị elu, mmetụta mmiri dị ala, na ezigbo nkwụsị nke abrasion, ihe mgbaze kemịkalụ na nguzogide dị ala.
3.DDI nwere ezigbo ndakọrịta na mmeghachi omume ya na polybutadiene hydroxyl kwụsịrị, na polymer a kwadebere na-enweghị plasticizer nwere ike siri ike na-enweghị atụ.
4. Ihe mkpuchi polyurea nke DDI na-akwado nke ọma na ígwè na osisi, na-enweghị mgbawa, na-egosikwa ihe ndị na-adịghị mma nke ọma, ihe nkpuchi na ihu igwe.
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