Umehluko phakathi kwe-Polyurethane Esekelwe Emanzini kanye ne-Polyurethane Esekelwe Kumafutha
Isembozo esingangeni manzi se-polyurethane esekelwe emanzini siyinto engangeni manzi enobungani nemvelo enama-molecule aphezulu e-polymer enamathelayo futhi enamathela kahle futhi engenakungenwa. Sinamathela kahle ezintweni ezisekelwe kusimende ezifana nekhonkrithi, imikhiqizo yamatshe neyensimbi. Umkhiqizo unezakhiwo zamakhemikhali ezizinzile futhi ungamelana nokuchayeka elangeni isikhathi eside. Sinezici zokuguquguquka okuhle kanye nobude obukhulu.
Izici Zokusebenza Komkhiqizo
1. Ukubukeka: Umkhiqizo kufanele ungabi namaqhubu ngemva kokuxubha futhi ube sesimweni esifanayo.
2. Inamandla aphezulu okubamba, ukunwebeka okuphezulu, ukuthamba okuhle, ukusebenza kahle emazingeni okushisa aphezulu naphansi, kanye nokuzivumelanisa kahle nokufinyela, ukuqhekeka, kanye nokuguquka kwesisekelo.
3. Ukunamathela kwayo kuhle, futhi akukho ukwelashwa kwe-primer okudingekayo kuma-substrate ahlukahlukene ahlangabezana nezidingo.
4. Isembozo siyoma bese senza ifilimu ngemva kwalokho singangeni manzi, singagqwali, singakhunti futhi singakhathali.
5. Ukusebenza kwayo endaweni ezungezile kuhle, njengoba ingenazo izingxenye ze-benzene noma ze-coal tar, futhi akukho ketshezi olwengeziwe oludingekayo ngesikhathi sokwakha.
6. Kungumkhiqizo onengxenye eyodwa, ofakwa emakhazeni okulula ukuwusebenzisa nokuwufaka.
Ububanzi bokusetshenziswa komkhiqizo
1. Kufanelekela amakamelo angaphansi komhlaba, izindawo zokupaka ezingaphansi komhlaba, isitimela esivulekile kanye nemigudu
2. Amakhishi, izindlu zangasese, ama-slab phansi, ama-balcony, uphahla olungaveziwe.
3. Ukuvimbela amanzi ukujiya kanye nokuvimbela amanzi emakhoneni, emajoyintini kanye neminye imininingwane emincane, kanye nokuvala amajoyinti okuvimbela amanzi.
4. Ukuvimbela amanzi emachibini okubhukuda, imithombo yokwenziwa, amathangi amanzi, kanye nemisele yokunisela.
5. Ukuvikela amanzi ezindaweni zokupaka kanye nophahla oluyisikwele.
Isembozo esingangeni manzi se-polyurethane esisekelwe ku-oyili siyisembozo esingangeni manzi esiphezulu sama-molecule esomisa futhi siqine ebusweni. Senziwe ngama-isocyanates nama-polyol njengezinto eziyinhloko, kanye nezinto ezisizayo ezahlukahlukene njengokuxuba ama-hardener afihliwe nama-plasticizer, futhi sikhiqizwa yinqubo ekhethekile yokusabela kokuphelelwa amanzi okushisa okuphezulu kanye ne-polymerization. Uma sisetshenziswa, sisetshenziswa ku-substrate engangeni manzi, futhi ifilimu engangeni manzi ye-polyurethane eqinile, eguquguqukayo futhi engenamthungo yakhiwa ebusweni be-substrate ngokusabela kwamakhemikhali phakathi kweqembu lokugcina le--NCO le-polyurethane prepolymer kanye nomswakama emoyeni.
Izici Zokusebenza Komkhiqizo
1. Ukubukeka: Lo mkhiqizo ungumzimba ofanayo oqinile ongenalo ijeli namaqhubu.
2. Ingxenye eyodwa, elungele ukusetshenziswa endaweni, ukwakhiwa okubandayo, kulula ukuyisebenzisa, kanye nesidingo sokuqukethwe komswakama kwesisekelo akuqinile.
3. Ukunamathela okuqinile: Ukunamathela okuhle kukhonkolo, udaka, izinto zobumba, iplasta, ukhuni, njll. izinto zokwakha, ukuzivumelanisa kahle nokuncibilika, ukuqhekeka kanye nokuguquka kwesisekelo.
4. Ifilimu engenamithungo: Inamathela kahle, asikho isidingo sokufaka i-primer kuma-substrate ahlukahlukene ahlangabezana nezidingo.
5. Amandla aphezulu okubamba ifilimu, izinga lokunwebeka okukhulu, ukunwebeka okuhle, ukuzivumelanisa kahle nokuncibilika kanye nokuguquguquka kwesisekelo.
6. Ukumelana namakhemikhali, ukumelana nokushisa okuphansi, ukumelana nokuguga, ukumelana nesikhunta, ukusebenza kahle kokungena kwamanzi. Ububanzi bokusetshenziswa komkhiqizo
Isembozo esingangeni manzi se-polyurethane esisekelwe ku-oyili singasetshenziswa ekwakhiweni kokungangeni manzi kwezakhiwo ezintsha nezindala, uphahla, amagumbi angaphansi komhlaba, izindlu zangasese, amachibi okubhukuda, amaphrojekthi okuvikela umphakathi, njll. Singasetshenziswa futhi ekwakhiweni kokungangeni manzi kwamapayipi ensimbi.
Umehluko phakathi kwe-polyurethane esekelwe kumafutha kanye ne-polyurethane esekelwe emanzini:
I-polyurethane esekelwe ku-oyili inokuqukethwe okuqinile okuphezulu kune-polyurethane esekelwe emanzini, kodwa yenziwe nge-isocyanate, i-polyether, kanye nezinye izinto ezisizayo ezifana ne-mixed latent curing agent kanye ne-plasticizers, ezilungiselelwe ngezinqubo ezikhethekile ekushiseni okuphezulu, njengokusabela kokususwa kwamanzi kanye ne-polymerization. Inezinga elikhulu lokungcola, uma kuqhathaniswa ne-polyurethane esekelwe emanzini, okuwumkhiqizo oluhlaza futhi onobungane nemvelo ongenakho ukungcola. Ifanele ukusetshenziswa ngaphakathi, njengamakhishi nezindlu zangasese.
Isikhathi sokuthunyelwe: Meyi-29-2024