DDI, CAS: 68239-06-5 Dimeryl Diisocyanate, Dimeryl-di-isocyanate

Hiki ke hoʻohana i ka DDI no ka hoʻomākaukau ʻana i nā polymers me ʻelua a ʻoi aku ka nui o nā pūhui hydrogen ikaika, hiki ke hoʻohana ʻia no ka hoʻomākaukau ʻana i ka polyurethane (urea) elastomers me nā waiwai kūikawā, nā mea hoʻolaʻa no nā propellants rocket paʻa, nā mea hoʻopili, nā mea hoʻopaʻa, nā mea hoʻopau ʻili lole, pepa, ʻili a me ka lole. mea hoʻoheheʻe wai, mea uila, lāʻau hoʻomaʻemaʻe wai lāʻau, etc.

1. Loaʻa iā DDI nā manaʻo noi no ka mālama ʻana i ka wai wai lole a me ka hana palupalu.He mea maʻalahi ke hana i kahi emulsion wai paʻa me ka wai, hiki ke hāʻawi i nā lole me ka loli lōʻihi;ma ke ʻano he mea hoʻoheheʻe wai lole, loaʻa iā ia ka hopena wai maikaʻi a hiki ke hoʻomaikaʻi i ka hopena o ka wai lole fluoride-based a me ka ʻaila.
2. ʻO ka polyurethane resins a me ka polyurea resins i hana ʻia mai ka DDI ʻaʻole i melemele, maikaʻi ka elasticity a me ka ductility, ikaika kiʻekiʻe, haʻahaʻa wai haʻahaʻa, a me ke kūpaʻa abrasion maikaʻi, ke kūpaʻa hoʻoheheʻe kemika a me ka pale wela haʻahaʻa.
3.He maikaʻi loa ko DDI a me ka hoʻoulu ʻana me ka polybutadiene i hoʻopau ʻia me ka hydroxyl, a ʻo ka polymer i hoʻomākaukau ʻia me ka plasticizer he haʻahaʻa haʻahaʻa haʻahaʻa.
4. Hoʻopili maikaʻi nā uhi polyurea DDI i ka metala a me ka lāʻau, me ka ʻole o nā māwae, a hōʻike i nā waiwai tensile maikaʻi loa, nā waiwai adhesion a me ka pale ʻana i ka wā.