—— ISIKHUNGO SEZINDABA ——

Ukuqhathaniswa kwezimpawu ezimbalwa ezivamile ezinezingxenye ezimbili

Isikhathi:10-27-2020

Uma kuqhathaniswa nabanye opende bokumaka emgwaqweni (ukuncibilika okushisayo, upende obandayo),amapende omaka omgwaqo anezingxenye ezimbilizinezici ezilandelayo eziphawulekayo:


Isikhathi sokumisa sihlobene kuphela nokushisa okuzungezile, inani le-ejenti yokwelapha, njll., futhi akuhlangene nobukhulu befilimu yokugqoka.Lokhu kuvumela upende omaka womgwaqo onezingxenye ezimbili ukuthi uklanywe ube yifilimu ewugqinsi kanye nezinye izimpawu zomgwaqo ezisebenzayo, njengezimpawu zomgwaqo ezinezingxenye ezimbili ezinyakazayo zemvula ebusuku, izimpawu zomgwaqo ezinamachashazi, njll.;


Umphumela wokuxhumanisa enqubweni yokwenza ifilimu yokumaka uthuthukisa kakhulu amandla omshini wefilimu yokumaka, ukunamathela endaweni yomgwaqo kanye namandla okubopha ezintweni ezibonakalayo;ezinye izingxenye ezimbili zezingubo zokumaka zomgwaqo zingasetshenziswa emigwaqweni emanzi Ukuphulukisa, ngakho-ke kungaxazulula isimo esingesihle somdwebo wokumaka emgwaqeni emvuleni.


Ngale ndlela, izimpawu zezingxenye ezimbili zinezinzuzo zazo ezihlukile uma ziqhathaniswa nezinye izinhlobo zokumaka.Okulandelayo, ngizokwethula izimpawu ezimbalwa ezivamile ezinezingxenye ezimbili kanye nezici zazo.


Ukumaka kwezingxenye ezimbili ze-Epoxy


Izimpawu ze-epoxy ngokuvamile zisetshenziselwa ukudweba ama-pavements anemibala angasheleli.Njengoba i-epoxy resin yempahla eluhlaza ishibhile uma kuqhathaniswa, izindleko zokumaka i-epoxy ziphansi, kodwa ukuphulukiswa kwayo ngezinga lokushisa eliphansi akubi kahle.I-epoxy resin ngokuvamile idinga ukwelashwa ezingeni lokushisa elingaphezu kuka-10°C.Uma iphansi kakhulu, isikhathi sokwelashwa sizoba side kakhulu.Isikhathi sokwelapha sizoba ngaphezu kwamahora angu-8 ekushiseni okuphansi okungaphansi kuka-10 ℃.Lena inkinga enkulu ekhawulela ukusetshenziswa kwezingubo zokumaka zomgwaqo ze-epoxy resin.Okwesibili, izici zayo zokuguga ezilula nazo zimpofu futhi zikhona kuma-molecule.Isibopho se-ether esinephunga elimnandi siphulwa kalula ngaphansi kokukhanya kwe-ultraviolet, futhi ukumelana nesimo sezulu sangaphandle kwefilimu yokugqoka kubi.

I-polyurethane yokumaka izingxenye ezimbili

Izimpawu ze-polyurethane nazo zisetshenziswa kuma-pavements anemibala.Inqubo yokwakhiwa kwayo ifana neye-epoxy.Ngeke imbozwe ngemva kokwakhiwa, kodwa isikhathi sokuphulukisa side kakhulu, ngokuvamile singaphezu kwamahora angu-4-8.Izembatho ze-polyurethane zinokuvutha okuthile nobuthi, okubangela izingozi ezithile ezifihliwe empilweni nokuphepha kwabasebenzi bokwakha.Ngesikhathi esifanayo, okuqukethwe okuqinile kwezinto zokusetshenziswa kwe-polyurethane kuhluke kakhulu ngenxa yokwakheka okuhlukile, futhi ukwakheka kwe-solvent jikelele kuphakathi kuka-3% no-15%, okuholela ekugqokeni okuphelile.Umehluko wentengo ngethani ungaphezu kuka-10,000 yuan, futhi imakethe inesiphithiphithi.

I-Polyurea yokumaka izingxenye ezimbili

Ukumaka i-polyurea into enwebekayo ekhiqizwa ukusabela kwengxenye ye-isocyanate A kanye nengxenye ye-cyano compound B. Ngokuvamile isetshenziswa kuma-pavements anemibala.Ifilimu yokugqoka i-polyurea iphulukisa ngokushesha, futhi ifilimu ingakhiwa ngemizuzwana engu-50 yabahamba ngezinyawo, okunganciphisa kakhulu isikhathi sokwakha., Kodwa isivinini sokusabela sishesha kakhulu, okubangela ubunzima obuthile bokwakha.Isetshenziswa kakhulu ukufutha futhi idinga ubuchwepheshe obuphezulu bokufafaza.Ububi obusobala kakhulu ukuthi kuyabiza futhi kuyabiza.

Ukumaka kwezingxenye ezimbili ze-MMA

Ukumaka kwezingxenye ezimbili ze-MMA akukwazi nje ukudweba imigwaqo enemibala, kodwa futhi nemigqa ephuzi nemhlophe.Inohlu olubanzi lwezinhlelo zokusebenza.Inezinzuzo ezilandelayo:


1. Izinga lokomisa liyashesha kakhulu.Ngokuvamile isikhathi sokuphulukisa singama-3 ~ 10min, futhi umgwaqo uzobuyiselwa kuthrafikhi phakathi nesikhathi esifushane sokwakhiwa.Ngisho nasendaweni yokushisa ephansi, inani le-ejenti yokwelapha lingakhushulwa ngokufanelekile ngokusho kohlobo lwe-resin, futhi ukuphulukiswa kungafinyelelwa ku-5 ° C nge-15 ~ 30min.


2. Ukusebenza kahle kakhulu.


① Ukuvumelana nezimo okuhle.Ukuvumelana nezimo okuyingqayizivele kwe-methyl methacrylate kungagwema ukwenzeka kokuqhekeka kwefilimu yokumaka.

②Ukunamathela okuhle kakhulu.I-polymer enesisindo esiphansi samangqamuzana asebenzayo inokungeneka okuhle kuma-capillaries asele ku-pavement, futhi ingaxazulula inkinga yokuthi amanye amapende omaka awahlanganiswa kalula nama-pavements kasimende kakhonkolo.

③Ukumelana nokuhuzuka okukhulu.Ukusabela kwe-polymerization yenqubo yokwenza ifilimu kwakha isakhiwo se-molecular yenethiwekhi, ehlanganisa ngokuqinile izingxenye ezihlukahlukene ekuhlanganiseni zibe yinto ehlangene.

④Ukumelana nesimo sezulu esihle.Ukumaka akukhiqizi ukuphuka kwezinga lokushisa eliphansi noma ukuthambisa izinga lokushisa eliphezulu, futhi cishe akukho ukuguga ngesikhathi sokusetshenziswa;izingxenye ezimbili zakha i-molecule entsha yenethiwekhi ngemva kokwenziwa kwe-polymerization, okuyi-polymer enkulu yesisindo samangqamuzana, futhi i-molecule entsha ayinazo izibopho zamangqamuzana asebenzayo.


3. Izici eziphakeme zokuvikela imvelo.


Ukushiswa kwe-solvent kuzobhubhisa ungqimba lwe-ozone emkhathini futhi kubangele izinkinga ezinkulu zemvelo.Uma kuqhathaniswa nopende wokumaka womgwaqo onengxenye eyodwa, upende we-acrylic wezingxenye ezimbili welashwa nge-polymerization yamakhemikhali, kunokuvuthwa ngokomzimba nokomisa.Cishe ayikho i-solvent ohlelweni, kuphela inani elincane kakhulu le-monomer volatilization eyenzekayo ngesikhathi sokwakhiwa (ukugqugquzela, ukumboza), futhi ukukhishwa kwe-solvent kuphansi kakhulu kunopende wokumaka womgwaqo osekelwe ku-solvent.