Intumescent ukumelana nomlilo
UKUSEBENZA KWEE-EXPANS HIGH-TEMPERATURE FIREGHT COATINGS EZINGANGENI UMLILO KUKHONA KWIINDAWO EZILANDELAYO:
Iyakhula xa idibana nomlilo, yenza umaleko wokuthintela ubushushu osebenzayo: Lo ngumsebenzi wayo ophambili. Xa ulwelo luvezwa kumlilo, izinto ezithintela ilangatye langaphakathi kunye nezinto ezikhupha ulwelo zisabela ngokukhawuleza, nto leyo ebangela ukuba umthamo wande ngokuphindwe ka-5 ukuya ku-20 nangaphezulu; umzekelo, imveliso ethile inokwanda ngokuphindwe ka-20 xa ubukhulu bayo buyi-0.6mm xa idibana nomlilo, nto leyo eyenza umaleko oxineneyo we-carbonized okanye umaleko we-ceramic. Olu lwelo lwandisiweyo lunokwahlula ubushushu kunye neoksijini ngempumelelo, lunciphise ukunyuka kobushushu be-substrate. Iimpawu ezibalaseleyo zokumelana nobushushu obuphezulu kunye nokuthintela ubushushu: Ulwelo oluphezulu oluphezulu lunokumelana nobushushu obuphezulu kakhulu. Umzekelo, imveliso ethile inokugcina ubushushu obungasemva bungabi ngaphezu kwama-200℃ ngaphakathi kwemizuzu emi-5 xa ivezwa kumlilo we-1000℃; olunye uphando lubonisa ukuba kwilangatye le-850℃ imizuzu eli-15, ubushushu bomphezulu obandayo buyi-122.3℃ kuphela. Ezinye ulwelo olukhethekileyo lunokuba nomda wokumelana nobushushu ukuya kuthi ga kwi-2000℃. Isakhiwo esineembobo okanye i-vacuum esenziwe emva kokwandiswa sinomoya ophantsi kakhulu wobushushu (njengokufikelela kwi-0.022W/mK), nto leyo ebangela iziphumo ezimangalisayo zokuthintela ubushushu.
Ngokulibazisa ukudluliselwa kobushushu kumaleko wokugquma, inokukhusela ngokufanelekileyo izinto ezinje ngezakhiwo zentsimbi, igcine amandla azo olwakhiwo nokuba kumaqondo obushushu aphezulu. Ukwakha izakhiwo zentsimbi, oku kunokubonelela ngeyure eli-1-3 okanye ixesha elide lokukhusela abasebenzi kunye nokuhlangula umlilo.
Iimpawu ezilungileyo zomzimba nezekhemikhali: Iingubo zanamhlanje zohlobo lokwandiswa azigcini nje ngokuba nokumelana nomlilo kodwa zikwanayo ne-adhesive enamandla kakhulu (ezinye zinokufikelela kwinqanaba 0), ukumelana nokugqwala kwe-asidi kunye ne-alkali, ukumelana nemozulu, kunye nokumelana neempembelelo. Ezinye iimveliso zisebenzisa i-formulations ezingenazinyibilikisi okanye ezisekelwe emanzini, zinobuhlobo nokusingqongileyo kwaye azinatyhefu kangako, zihlangabezana neemfuno zanamhlanje zokhuseleko lokusingqongileyo.
