Ukuxhathisa imozulu kubhekiselele ekomeleleni kwefilimu yokwambathisa umgubo xa ivezwe kwiimeko zomoya wangaphandle.
Phantse zonke iindlela zokugada izithuthi zisetyenziswa ngaphandle. Imekobume ye-atmospheric equka ukukhanya kwelanga, ioksijini kunye ne-ozone, utshintsho olushushu kunye nobushushu obubandayo, amanzi kunye nokufuma okuhambelanayo, kunye ne-microorganisms kunye nezinambuzane ziya kuchaphazela ubomi benkonzo yokwaleka.
Iindlela zokugada izithuthi ngokubanzi kufuneka zisetyenziswe ngaphandle ngaphezulu kweminyaka eli-10 ngaphandle kokutshintsha kombala okucacileyo, iintanda kunye neentanda, kunye nokugcina imfezeko kunye nokuhombisa ifilimu yokwambathisa. Ke ngoko, iimfuno zokuchasana nemozulu zokugquma umgubo zibaluleke kakhulu.
Eyona nto ichaphazela ukuxhathisa kwemozulu kukukhanya kwelanga. Ekukhanyeni kwelanga, kuphela amandla okukhanya anobude obungamaza angama-250 ukuya kwi-1400 nm aphuma kumphezulu womhlaba. Phakathi kwabo, ubude be-780 ukuya kwi-1400 nm yi-infrared, ibalwa kwi-42% ukuya kwi-60% yemitha yelanga epheleleyo. Isasaza amandla obushushu kwizinto; ubude be-380 ukuya kwi-780 nm bukukhanya okubonakalayo. , i-39% ukuya kwi-53% yemitha yelanga epheleleyo, ichaphazela kakhulu izinto ngokusebenzisa amandla okushisa kunye neekhemikhali; ukukhanya kwe-ultraviolet kunye ne-wavelength ye-250 ~ 400nm ikakhulu kuchaphazela izinto ngokuphendula kweekhemikhali.
Uvavanyo lubonise ukuba eyona mpembelelo iyonakalisayo kwi-polymer resins yimitha ye-ultraviolet enobude obungama-290 ukuya kuma-400 nm, ngakumbi imisebe ye-ultraviolet enobude obumalunga ne-300 nm, eyona nto iphambili ekhokelela ekuwohlokeni kweereyini ze-polyolefin.
Ubushushu bunempembelelo ekuxhathiseni imozulu. Kuzo zonke i-10 ° C yokwanda kweqondo lokushisa, isantya sokuphendula i-photochemical siya kuphinda kabini.
Ukongeza kokubangela ukusabela kwe-hydrolysis kunye ne-deformation yokufunxa amanzi kwifilimu yokwambathisa, amanzi emvula nawo anokhukuliseko kunye neziphumo zomonakalo. Amanzi anokuhlamba ubumdaka kunye neemveliso ezigugayo kumphezulu wokugada, kodwa anciphisa umphumo wokukhusela kwaye akhawulezise ukuguga.
Ukuphucula ukuchasana kwemozulu yeengubo zomgubo kuthetha ukufunda izinto ezibangela ukuwohloka kwefilimu yokugqoka kunye nokufumana amanyathelo okusombulula iingxaki. Kwiminyaka yakutshanje, i-powder coatings yelizwe lam yenze umsebenzi omninzi ovelisayo ekukhetheni izinto eziluhlaza, ukulungiswa okongeziweyo, ukuxuba, ukukhupha kunye nokutyumza, okuye kwaphucula kakhulu ukuxhathisa kwemozulu ye-powder coatings.
Nangona kunjalo, kufuneka kucaciswe ukuba umgangatho wangoku wokuveliswa kwepowder kwilizwe lam awulingani, kunye nokuhluka okukhulu. Abavelisi abambalwa basukela inzuzo kuphela, bongeza izinto ezisetyenzisiweyo, bazalise ngezongezo ezitshiphu, baswele iindlela zokuhlola, kwaye banomgangatho ophantsi wemveliso. Umgubo uya kutshintsha umbala kwaye uqhekeke ngexesha elifutshane emva kokugquma. , kwaye i-traffic guardrail egqunywe ngumgubo iyakwazi ukufikelela ngaphezu kwe-10a ukuze isetyenziswe ngaphandle.
Uvavanyo lokuxhathisa imozulu luhlala lusebenzisa uvavanyo lokuguga olukhawulezileyo kunye novavanyo lwendalo lwemozulu. Uvavanyo lokuguga lokwenziwa lulinganisa iimeko zomoya kwaye emva koko luthelekise nesampulu. Inokubala kuphela ixesha elilinganayo lokuguga ngaphandle. Iziphumo zovavanyo lwendalo lwendalo zinenyani, kodwa zithatha ixesha elide.
Ixesha lokuposa: Dec-12-2023