Incazelo Yomkhiqizo
I-Polyurea iyinhlanganisela esetshenziswa kabanzi esetshenziswe ngempumelelo ekulweni nokugqwala kwamatangi okugcina izinto, ekuvimbeleni ukungenwa kwamanzi kwezakhiwo zekhonkrithi njengezindawo zokupaka, amadamu okugcina amanzi, kanye nemigudu, kanye nanjengezinto zokugcwalisa noma zokuvala amalunga.
- Uhlu olude lwezinto lungafakwa ohlwini njengalezo ezisetshenziswa njengezembozo ezingangeni manzi. Sekungamakhulu eminyaka amaningana, okuwukuphela kwendlela eyayitholakala kwakuyimikhiqizo esekelwe ku-asphalt. Ekhulwini lama-20, kwathuthukiswa ezinye izinto eziningi, okuhlanganisa i-epoxy ne-vinyl ester.
- I-Polyurea ubuchwepheshe bamuva bokumboza obuthuthukisiwe. Le nto, eyenzelwe imboni yezimoto ngasekupheleni kweminyaka yama-1980, manje isetshenziswa kabanzi emikhakheni eyahlukahlukene. Ngenxa yokuqina kwayo okusheshayo, ukumelana nokugqwala, kanye nokumelana nokuguguleka, yenze intuthuko enkulu ekubunjweni kokuvimbela amanzi eminyakeni eyi-10 edlule.
- Lapho kusungulwa i-polyurea, kwakunethemba lokuthi i-polyurea izoba ne-polyurethane engazweli kakhulu emanzini. Ngokufaka amaqembu e-carboxyl ku-polyurethane esikhundleni samaqembu e-amino, kwatholakala umkhiqizo esiwubiza ngokuthi i-polyurea manje. Lo mkhiqizo awuzweli kakhulu emanzini kunezinye izembozo ezisekelwe ku-polyurethane.
- I-Polyurea inezinhlobo ezimbili ezivamile. I-Aromatic polyurea isetshenziswa kaningi. Ukusebenza ngokomzimba kwalomkhiqizo kungahluka kakhulu, ngaleyo ndlela kube nezinhlelo eziningi ezahlukene. Eqinisweni, okuwukuphela kwenkinga yalo mbala ukuqina kwe-UV okungekuhle. Olunye uhlobo yi-aliphatic polyurea. Ngokusebenzisa izindlela ezahlukene zamakhemikhali ukuze kube nokuqina kwe-UV okungcono, kukhokhwa inhlawulo yentengo. Intengo yale polyurea ivame ukuphindwe kabili kune-aromatic polyurea.
Izici zomkhiqizo
Izembozo ze-polyurea, njengohlobo olusha lwezembozo ezisebenza kahle kakhulu, zinezici eziningi eziphawulekayo.
- Inezakhiwo ezinhle kakhulu zomzimba, njengokumelana nokuguguleka okuhle, okuvumela isembozo ukuthi sigcine ubuqotho baso kanye nomphumela wokuvikela isikhathi eside ngisho nasezindaweni ezibhekene nokungqubuzana nokuguga njalo;
- Ngesikhathi esifanayo, inokumelana okuphawulekayo komthelela, imelana ngempumelelo namandla omthelela wangaphandle futhi ivikela ubuso bento eboshwe ekulimaleni.
- Ngokuphathelene nezakhiwo zamakhemikhali, izembozo ze-polyurea zibonisa ukumelana nokugqwala okuvelele. Kungakhathaliseki ukuthi zibhekene nokuguguleka kwama-asidi, ama-alkali, noma ezindaweni zamakhemikhali ezinzima njengomswakama ophezulu kanye nokufuthwa kukasawoti omningi, zingahlala zizinzile isikhathi eside futhi azikwazi ukusabela kwamakhemikhali okubangela umonakalo wezembozo.
- Ngaphezu kwalokho, inokumelana okuhle nesimo sezulu, igcina ukuzinza kwayo ekusebenzeni ezindaweni ezahlukene, njengamazinga okushisa aphezulu, amazinga okushisa aphansi, kanye nemisebe ye-ultraviolet, ngaphandle kokubhekana nezinkinga ezifana nokuphotha, ukushintsha kombala, noma ukuxebuka ngenxa yokushintsha kwesimo sezulu. Ijubane lokuphola kwezembozo ze-polyurea lishesha kakhulu, okuthuthukisa kakhulu ukusebenza kahle kokwakhiwa futhi kwenza ukuthi izembozo ziqedwe futhi zisetshenziswe esikhathini esifushane.
- Ngaphezu kwalokho, inamathela kahle ezintweni ezahlukahlukene, ikwazi ukunamathela ngokuqinile ezindaweni zensimbi, ukhonkolo, ukhuni, njll., yakha ungqimba oluqinile noluzinzile lokuvikela.
IZINZUZO ZOMKHIQIZO
- Esinye sezizathu ezenza ukuthi izembozo ze-polyurea zisheshe zathandwa yizakhiwo zazo ezinhle kakhulu ezibonisiwe. Iwebhusayithi ye-Polyurea.com isho ngokusobala ukuthi ngokwezakhiwo ezibonakalayo ezitholakalayo, akukho okunye ukwembozwa emhlabeni okungalingana ne-polyurea. Ngokulungisa ifomula, imikhiqizo ye-polyurea ingaba nezakhiwo eziningi kakhulu, kusukela ekunwebekeni okuphezulu kuya emandleni amahle kakhulu okunamathela, kodwa lokhu kuhlobene nefomula yezinto ezibonakalayo kanye nokusetshenziswa okufanele. I-Polyurea inokunamathela okuhle kakhulu ezintweni ezahlukahlukene okuhlanganisa ukhonkolo, insimbi, kanye nokhuni, ngisho noma ingenayo i-primer, futhi ingasetshenziswa ezindaweni ezinokushintshashintsha okukhulu kokushisa kanye nomswakama. Mhlawumbe inzuzo ephawuleka kakhulu ye-polyurea ukuqina kwayo okusheshayo kakhulu. Uma isetshenzisiwe, i-polyurea ingafinyelela ubukhulu obudingekayo ejazini elilodwa, okushesha kaningana kunokusebenzisa izembozo zendabuko, okuvumela umnikazi ukuthi aqale ukusebenzisa indawo futhi anciphise ukulahlekelwa ngenxa yesikhathi sokungasebenzi.
- Ubukhulu bokusetshenziswa kanye kwezembozo ze-polyurea bungasukela ku-0.5mm kuya ku-12.7mm, kanti isikhathi sokupholisa sisukela ngokushesha kuya cishe kumaminithi amabili, okusiza ekufinyeleleni ngokushesha esimweni esisebenzisekayo.
- Njengesembozo sefilimu esiqinile esiphulukisa ngokushesha, lapho kudingeka ukuvimbela amanzi okunamathelayo okuqinile nokungenamthungo, i-polyurea iyisinqumo esihle kakhulu. Ezinye izakhiwo, njengokudinga ukungasheleli kanye nokuthungwa kwendawo, nazo zingatholakala ngezindlela ezithile. Isembozo singapendwa futhi singasetshenziswa ngisho nasezindaweni ezihlangabezana nezidingo zamanzi okuphuza.
- Ngenxa yobubanzi bayo bezimpawu zokusebenza, i-polyurea inezinhlobo eziningi kakhulu zezicelo. Ulwelwesi lwangaphakathi lwamathangi okugcina izinto, izendlalelo zokuvikela zesibili, kanye nokuvikelwa kobuso bamabhuloho yizona zikhathi ezisetshenziswa kakhulu kulolu hlobo lwezinto. Eqinisweni, amathuba okusetshenziswa kwe-polyurea cishe awanqunyelwe.
- Amathangi ezitshalo zokwelapha amanzi angcolile avame ukuhlushwa yi-vortex, ukukhuhla, kanye negesi enkulu ye-hydrogen sulfide ngesikhathi sokuhlunga, ukuxuba, kanye nokuphelelwa amanzi emzimbeni. Ukusebenzisa i-polyurea kunganikeza ukumelana nokuguguleka okudingekayo, ukumelana namakhemikhali, kanye nokumelana nokushaywa, futhi kungabuyisela ngokushesha ifektri ekusebenzeni, okushesha kakhulu kunezinye izindlela eziningi.
- Uma kusetshenziswa emabhulohweni nakwezinye izindawo ezisengozini yokudlidliza nokufuduka, ukuguquguquka okungokwemvelo kwe-polyurea kungenye inzuzo ngaphezu kwalezo zingubo ezincane nezingenakuguquguquka njenge-epoxy.
Ukushoda Komkhiqizo
- Yiqiniso, i-polyurea nayo inezinkinga ezithile. Imishini edingekayo ekusetshenzisweni kwezembozo ze-polyurea ibiza kakhulu, kusukela ku-$15,000 kuya ku-$50,000 noma ngaphezulu. Ipulatifomu yokwakha yeselula ehlonyiswe ngokugcwele ingabiza u-$100,000.
- Izindleko zezinto ze-polyurea nazo ziphakeme kunezinye izembozo. Izindleko zokuqala ziphakeme kuneze-epoxy. Kodwa-ke, njengoba impilo yesevisi yezembozo ze-polyurea iphindwe kathathu kuya kahlanu kuneminye imikhiqizo, ukusebenza kahle kwezindleko ngesikhathi sempilo yesevisi kusenezinzuzo.
- Njenganoma iyiphi enye into yokuvimbela amanzi, ukwakhiwa okungafanele nakho kungaholela ekwehlulekeni kokusetshenziswa. Kodwa-ke, izidingo zokwakha nge-polyurea coating ziphakeme kakhulu. Ukwelashwa kwendawo efana nokuqhumisa isihlabathi noma i-priming kubaluleke kakhulu kwi-polyurea. Iningi lamaphrojekthi okugqoka i-polyurea ahlulekile cishe awahlobene ne-polyurea uqobo, kodwa abangelwa ukuphathwa kwendawo okungafanele noma okubi.
Ukwakhiwa
- Iningi le-polyurea elisetshenziselwa ukuvimbela amanzi lakhiwa kusetshenziswa imishini yokufafaza enezingxenye eziningi. Ngokuvamile, kusetshenziswa uhlelo lwezingxenye ezimbili, lapho ingxube ye-amino resin kanye nezinto ze-isocyanate ziqukethwe ngokwehlukana ezitsheni ezingama-50-gallon. Ngesikhathi sokwakha endaweni yokusebenza, okuqukethwe okuvela ezitsheni ezingama-50-gallon kudluliselwa ethangini lemishini yokufafaza bese kushiswa kufike ezingeni lokushisa elifanele (60-71°C). Ngemuva kwalokho, i-isocyanate kanye ne-polyol resin kuthunyelwa ngepayipi elifudumele liye ebhodleleni lokufafaza.
- Isilinganiso salezi zinto ezimbili silawulwa ngokuqinile, ngokuvamile ngesilinganiso esingu-1:1.
- Isikhathi sokupholisa se-polyurea silinganiswa ngemizuzwana, ngakho-ke la makhemikhali angaxutshwa kuphela lapho ephuma ebhodleleni lokufafaza; ngaphandle kwalokho, azophola futhi aqine ebhodleleni lokufafaza.
- Abanye abakhiqizi bathengisa amayunithi okufafaza aphelele ahambayo, okuhlanganisa wonke amathuluzi nemishini, efakwe kuma-trailer noma emibhedeni yamaloli.
Isikhathi sokuthunyelwe: Agasti-13-2025
