tag: Polyurethane Powder Coating
Itekhnoloji yokugquma iPolyaspartic
I-chemistry isekelwe kwi-reaction ye-aliphatic polyisocyanate kunye ne-polyaspartic ester, eyi-aliphatic diamine. Le teknoloji yayiqale yasetyenziswa kwimixube emibini ye-polyurethane ene-solvent-borne ye-solvent-borne formulations ngenxa yokuba ii-polyaspartic diluents zezona zixutywayo zisebenza kakuhle kwi-polyurethane ephezulu yokwaleka Uphuhliso lwakutsha nje kwitekhnoloji yokwaleka ye-polyaspartic igxile ekufezekiseni ukutyabeka kwe-VOC okuphantsi okanye kufutshane no-zero apho i-polyaspartic. I-ester licandelo eliphambili le-co-reactant yokusabela nge-polyisocyanate. Eyodwa kunyeFunda ngokugqithisileyo …
Yintoni iPolyurea Coating kunye nePolyurethane Coatings
I-Polyurea Coating kunye ne-Polyurethane Coatings I-Polyurea yokwaleka I-polyurea ngokusisiseko yinkqubo yamacandelo amabini asekelwe kwi-Amine ephelisiwe i-prepolymer edibeneyo kunye ne-Isocyanate eyenza unxibelelwano lwe-urea. Ukudibanisa phakathi kweepolymers ezisebenzayo zenzeka ngesantya esikhawulezayo kwiqondo lokushisa eliphakathi. Ngokuqhelekileyo le mpendulo ayifuni nayiphi na i-catalyst. Ekubeni Pot-ubomi ukutyabeka enjalo ngaphakathi imizuzwana; uhlobo olukhethekileyo lwePlural Umpu wokutshiza wecandelo uyafuneka ukwenza isicelo. Izogquma unokwakha ukuya ku 500 ukubaFunda ngokugqithisileyo …
Yintoni i-polyurethane enyangwa ngokufuma
Yintoni i-polyurethane enyangelwe ngokuFumana Ukufuma okunyanga i-polyurethane yinxenye ye-polyurethane ekunyango kwayo ekuqaleni kokufuma kokusingqongileyo. I-polyurethane enyangekayo yokufuma iquka ikakhulu i-isocyanate-terinated pre-polymer. Iindidi ezahlukeneyo ze-pre-polymer zingasetyenziselwa ukubonelela ngepropati efunekayo. Ngokomzekelo, i-isocyanate-terinated polyether polyols isetyenziselwa ukubonelela ukuguquguquka okulungileyo ngenxa yokushisa kweglasi ephantsi yokutshintsha. Ukudibanisa icandelo elithambileyo, elifana ne-polyether, kunye necandelo elinzima, njenge-polyurea, linika ubunzima obuhle kunye nokuguquguquka kweengubo. Ngaphezu koko, iipropati nazo zilawulwa yiFunda ngokugqithisileyo …
Izicwangciso ezimbini zokuyila iingubo ezinokumelana ne-mar ekhethekileyo
Kukho izicwangciso ezimbini ezikhoyo zokuyila iingubo ezinokumelana ne-mar ekhethekileyo. Zingenziwa ziqine ngokwaneleyo ukuba into etshatisayo ingangeni kude kumphezulu; okanye Zingenziwa i-elastic ngokwaneleyo ukuba zikwazi ukubuyisela emva kokususwa koxinzelelo oluphazamisayo. Ukuba isicwangciso sobunzima sikhethiweyo, iingubo kufuneka zibe nobunzima obuncinci. Nangona kunjalo, iingubo ezinjalo zinokungaphumeleli ngokuphuka. Ukuguquguquka kwefilimu yinto ebalulekileyo echaphazela ukuxhathisa ukuphuka. Ukusetyenziswa kwe-4-hydroxybutyl acrylate endaweniFunda ngokugqithisileyo …