DDI CAS: 68239-06-5 Dimeryl Diisocyanate, Dimeryl-di- isocyanate hmoov
DDI yog ib qho tshwj xeeb aliphatic diisocyanate uas tuaj yeem ua ke nrog cov khoom siv hydrogen-muaj cov tshuaj los npaj cov polymers.Nws yog cov saw ntev ntev nrog 36-carbon dimerized fatty acid qaum.Lub ntsiab saw hlau muab DDI superior yooj, dej tsis kam thiab toxicity tsawg tshaj li lwm yam aliphatic isocyanates.DDI yog cov kua viscosity tsawg, yooj yim soluble nyob rau hauv feem ntau polar los yog non-polar solvents.Vim tias nws yog aliphatic isocyanate, nws muaj cov khoom tsis muaj daj.
Dab tsi yog qhov kev siv thiab qhov zoo ntawm DDI?
DDI tuaj yeem siv los npaj cov polymers nrog ob lossis ntau dua cov khoom siv hydrogen, uas tuaj yeem siv los npaj cov polyurethane (urea) elastomers nrog cov khoom tshwj xeeb, kho cov neeg ua haujlwm rau cov khoom siv foob pob hluav taws, cov nplaum, cov nplaum, cov ntaub nplaum, cov ntaub nplaum, cov ntawv, tawv thiab ntaub. Waterproofing tus neeg saib xyuas, cov khoom siv hluav taws xob, cov khoom siv hluav taws xob tiv thaiv ntoo, thiab lwm yam.
1. DDI muaj daim ntawv thov kev cia siab nyob rau hauv kev kho mob ntawm cov ntaub dej repellency thiab softening kev ua tau zoo.Nws yog ib qho yooj yim los tsim ib qho dej ruaj khov emulsion nrog dej, uas tuaj yeem muab cov ntaub nrog kev ua haujlwm ntev ntev;Raws li cov ntaub ntawv pov thawj dej, nws muaj cov nyhuv dej zoo thiab tuaj yeem txhim kho cov nyhuv ntawm fluoride-raws li ntaub ntaub dej thiab roj pleev.
2. Polyurethane resins thiab polyurea resins ua los ntawm DDI tsis muaj daj, zoo heev elasticity thiab ductility, siab zog, tsis tshua muaj dej rhiab heev, thiab zoo abrasion kuj, tshuaj hnyav tsis kam thiab kub tsis kam.
3.DDI muaj kev sib raug zoo zoo thiab muaj kev cuam tshuam nrog hydroxyl-terminated polybutadiene, thiab cov polymer npaj tsis muaj plasticizer muaj qhov txawv txav tsis zoo.
4. DDI-raws li polyurea coatings adheres zoo rau hlau thiab ntoo, tsis muaj kab nrib pleb, thiab qhia tau zoo heev tensile zog, adhesion zog thiab huab cua tsis kam.
Cov khoom muaj feem xyuam
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