DDI, CAS: 68239-06-5 Dimeryl Diisocyanate, Dimeryl-di-isocyanate
DDI ndi aliphatic diisocyanate yapadera yomwe imatha kuphatikizidwa ndi mankhwala okhala ndi haidrojeni kuti akonzekere ma polima.Ndi gulu lalitali lokhala ndi 36-carbon dimerized mafuta acid msana.Kapangidwe kake kake kamapatsa DDI kusinthasintha kwapamwamba, kukana madzi komanso kawopsedwe kakang'ono kuposa ma isocyanate ena aliphatic.DDI ndimadzimadzi otsika kukhuthala, osungunuka mosavuta mu zosungunulira za polar kapena zopanda polar.Chifukwa ndi aliphatic isocyanate, ili ndi zinthu zopanda chikasu.
Kodi ntchito ndi ubwino wa DDI ndi chiyani?
DDI angagwiritsidwe ntchito pokonzekera ma polima ndi awiri kapena kuposa yogwira hydrogen mankhwala, amene angagwiritsidwe ntchito pokonzekera polyurethane (urea) elastomers ndi katundu wapadera, kuchiritsa wothandizila olimba rocket propellants, zomatira, sealants, nsalu pamwamba kumaliza, pepala, Chikopa ndi nsalu. wothandizila madzi, zipangizo zamagetsi, nkhuni madzi mankhwala wothandizira, etc.
1. DDI ili ndi chiyembekezo chogwiritsa ntchito pochiza kuthamangitsa madzi ku nsalu komanso kufewetsa ntchito.N'zosavuta kupanga emulsion madzi okhazikika ndi madzi, omwe amatha kupangira nsalu ndi kusinthasintha kwa nthawi yaitali;monga nsalu yotchinga madzi, imakhala ndi zotsatira zabwino zowononga madzi ndipo imathanso kusintha zotsatira za madzi opangidwa ndi nsalu ya fluoride ndi mafuta.
2. Ma resins a polyurethane ndi polyurea resins opangidwa kuchokera ku DDI alibe chikasu, amatha kukhazikika komanso ductility, mphamvu yayikulu, kutsika kwamadzi, komanso kukana bwino kwa abrasion, kukana kusungunulira kwamankhwala komanso kutsika kwa kutentha.
3.DDI ili ndi kuyanjana kwabwino kwambiri komanso kuyanjananso ndi hydroxyl-terminated polybutadiene, ndipo polima yokonzedwa popanda plasticizer imakhala ndi kuuma kochepa kwambiri.
4. Zovala za polyurea zopangidwa ndi DDI zimamatira bwino kuzitsulo ndi matabwa, popanda ming'alu, ndipo zimawonetsa zinthu zabwino kwambiri zolimba, zomatira komanso kukana nyengo.
Zogwirizana nazo
-
TOP, Tris(2-ethylhexyl) Phosphate, CAS# 78-42-2...
Phukusi Mawonekedwe Opanda utoto, osanunkhiza, owoneka bwino viscous Liqui Purity ≥99% Acidity ≤0.1 mgKOH/g Kachulukidwe (20℃)g/cm3 0.924±0.003 Flash Point ≥192℃ Kuvuta kwa pamwamba ≥18 Mn/mt. -Co) ≤20 Phukusi Loyikidwa mu 200 lita imodzi yachitsulo chachitsulo, NW 180 kg / ng'oma;o...
-
Mpira wa Ceramic
Mafotokozedwe azinthu 10 Φ / AL2O3 zomwe zili ≥40% AL2O3+SiO2 ≥92% Fe2O3 zokhutira ≤1% Mphamvu zopondereza ≥0.9KN/pc Mulu wa mulu 1400kg/m3 Kukana kwa asidi ≥98% Alkali kukana 5% ≥98% Alkali kukana 5% ≥98% Alkali kukana Al2O3 wapamwamba kalasi aluminiyamu wothira pang'ono osowa dziko lapansi oxides zitsulo monga zopangira.Pambuyo chilinganizo okhwima sayansi, zopangira kusankha, zabwino g ...
-
Hydrogen Peroxide Stabilizer
Mafotokozedwe TYPE II Stannum yokhala ndi stabilizer Maonekedwe Opepuka achikasu owonekera amadzimadzi Kuchulukira (20℃) ≥1.06g/cm3 PH mtengo 1.0～3.0 Kukhazikika kwa hydrogen peroxide kukhazikika kwa hydrogen peroxide kumachulukitsidwa kuchoka pa ≥ 90.0% kufika ≥ TYPE IV% 97.0 Phorus Phorus IV% 97.0 stabilizer Maonekedwe colorless manla madzi Kachulukidwe (20℃) ≥1.03g/cm3 PH mtengo 1.0～...
-
Alumina adayatsidwa kuti apange H2O2, CAS #: 13...
Kufotokozera Katundu wa Crystalline gawo r-Al2O3 r-Al2O3 r-Al2O3 r-Al2O3 Maonekedwe Mpira woyera Mpira woyera Mpira woyera Mpira woyera Malo Odziwika (m2/g) 200-260 200-260 200-260 200-23gre voliyumu ) 0.40-0.46 0.40-0.46 0.40-0.46 0.40-0.46 Mayamwidwe amadzi >52>52>52>52 Tinthu kukula 7-14mesh 3-5mm 4-6mm 5-7mm Kuchuluka kwazinthu 0.50-0.6 0.70 0.6-0.6 0.68 ndi ...
-
Zinthu Zopangira Hydrogen Peroxide 2-ethyl-A...
Phukusi 25kg / Kraft pepala thumba ndi wakuda PE thumba mizere kapena malinga ndi lamulo lanu.Kusungirako Zinthuzo ziyenera kusungidwa m'nyumba yosungiramo youma komanso mpweya wabwino....
