DDI, CAS: 68239-06-5 Dimeryl Diisocyanate, Dimeryl-di-isocyanate
DDI yakasarudzika aliphatic diisocyanate inogona kusanganiswa neanoshanda hydrogen-ine makomisheni kugadzirira mapolima.Ikomboni yakareba-chain ine 36-carbon dimerized fatty acid backbone.Iyo huru cheni chimiro chinopa DDI yepamusoro kuchinjika, kuramba kwemvura uye kuderera muchetura kupfuura mamwe aliphatic isocyanates.DDI imvura yakaderera-viscosity, inonyungudika zviri nyore mune yakawanda polar kana isiri-polar solvents.Nekuti iri aliphatic isocyanate, ine isina-yellowing properties.
Ndeipi kushandiswa uye mukana weDDI?
DDI inogona kushandiswa kugadzira mapolymer ane maviri kana anopfuura anoshanda ehydrogen makomisheni, anogona kushandiswa kugadzira polyurethane (urea) elastomers ane akakosha zvivakwa, kurapa maajenti kune yakasimba rocket propellants, adhesives, sealants, jira pamusoro pekupedzisira, bepa, Dehwe uye machira. kudzivirira mvura mumiririri, zvemagetsi zvinhu, huni kudzivirira mvura kurapwa mumiririri, etc.
1. DDI ine tarisiro yekushandisa mukurapa kwejira repellency yemvura uye kupfava kuita.Zviri nyore kuumba emulsion yemvura yakagadzikana nemvura, iyo inogona kupa machira nekugadzirisa kwenguva refu;sejira rekudzivirira mvura, rine simba rakanaka rekudzivirira mvura uye rinogonawo kuvandudza maitiro e-fluoride-based fabric mvura uye mafuta anodzinga.
2. Polyurethane resins uye polyurea resins yakagadzirwa kubva kuDDI haina-yellow, yakanakisa elasticity uye ductility, yakakwirira simba, yakaderera mvura senitivity, uye yakanaka abrasion resistance, chemical solvent resistance uye kuderera kwekushisa.
3.DDI ine kuenderana kwakanaka uye reactivity ine hydroxyl-terminated polybutadiene, uye iyo polima yakagadzirwa isina plasticizer ine yakaderera yakaderera kuoma.
4. DDI-based polyurea coatings inonamira zvakanaka kune simbi nehuni, isina kuputika, uye inoratidza yakanakisa tensile zvivakwa, adhesion zvivakwa uye mamiriro ekunze.
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