DDI, CAS: 68239-06-5 Dimeryl Diisocyanate, Dimeryl-di- isocyanate
DDI shine diisocyanate na musamman na aliphatic wanda za'a iya haɗe shi tare da mahaɗan da ke ɗauke da hydrogen masu aiki don shirya polymers.Abu ne mai tsayin sarka tare da kashin bayan fatty acid dimerized 36-carbon.Babban tsarin sarkar yana ba DDI mafi girman sassauci, juriya na ruwa da ƙarancin guba fiye da sauran isocyanates aliphatic.DDI ruwa ne mai ƙarancin danko, mai sauƙi mai narkewa a mafi yawan kaushi na polar ko maras iyaka.Domin yana da isocyanate aliphatic, yana da kaddarorin masu launin rawaya.
Menene amfani da fa'idar DDI?
DDI za a iya amfani da su shirya polymers tare da biyu ko fiye da aiki hydrogen mahadi, wanda za a iya amfani da su shirya polyurethane (urea) elastomers tare da musamman kaddarorin, curing jamiái ga roka propellants, adhesives, sealants, masana'anta surface karewa, takarda, fata da masana'anta. wakili mai hana ruwa, kayan lantarki, maganin hana ruwa na itace, da dai sauransu.
1. DDI yana da buƙatun aikace-aikacen a cikin maganin hana ruwa na masana'anta da aikin laushi.Yana da sauƙi don samar da emulsion na ruwa mai tsayi tare da ruwa, wanda zai iya ba da yadudduka tare da sassauci na dindindin;a matsayin mai hana ruwa na masana'anta, yana da tasiri mai kyau na ruwa kuma yana iya inganta tasirin ruwa mai amfani da fluoride da man fetur.
2. Polyurethane resins da polyurea resins sanya daga DDI da wadanda ba yellowing, m elasticity da ductility, high ƙarfi, low ruwa hankali, da kuma mai kyau abrasion juriya, sinadaran ƙarfi juriya da kuma low zazzabi juriya.
3.DDI yana da ingantacciyar dacewa da amsawa tare da polybutadiene mai ƙarewa na hydroxyl, kuma polymer da aka shirya ba tare da filastik ba yana da ƙarancin taurin gaske.
4. DDI-based polyurea coatings suna da kyau ga karfe da itace, ba tare da tsagewa ba, kuma suna nuna kyawawan kaddarorin haɓakawa, kaddarorin mannewa da juriya na yanayi.