Umehluko phakathi kwe-Water based Polyurethane ne-Oil based Polyurethane
I-polyurethane yamanzi enamathela emanzini iyinto evumelana nemvelo ephezulu yamangqamuzana e-polymer enwebekayo engangeni manzi enamathela kahle nokungamibiliki. Inonamathela kahle kuma-substrates asekelwe kusimende njengokhonkolo kanye nemikhiqizo yamatshe neyensimbi. Umkhiqizo unezici zamakhemikhali ezizinzile futhi ungamelana nokuchayeka isikhathi eside elangeni. Inezici zokunwebeka okuhle nokunwebeka okukhulu.
Izici Zokusebenza Komkhiqizo
1. Ukubukeka: Umkhiqizo kufanele ungabi nezigaxa ngemva kokunyakaziswa futhi ube nesimo esifanayo.
2. Inamandla aphezulu okudonsa, ukunwebeka okuphezulu, ukunwebeka okuhle, ukusebenza kahle emazingeni okushisa aphezulu naphansi, nokuvumelana nezimo ezinhle ekufinyezweni, ukuqhekeka, kanye nokuguqulwa kwe-substrate.
3. Ukunamathela kwayo kuhle, futhi akukho ukwelashwa kwe-primer okudingekayo kuma-substrates ahlukahlukene ahlangabezana nezidingo.
4. I-coating iyoma futhi yakhe ifilimu ngemva kwalokho ayizweli emanzini, imelana nokugqwala, imelana nesikhunta, futhi imelana nokukhathala.
5. Ukusebenza kwayo kwemvelo kuhle, njengoba ayinayo izingxenye ze-benzene noma i-coal tar, futhi asikho i-solvent eyengeziwe edingekayo ngesikhathi sokwakhiwa.
6. Kuyinto eyodwa-ingxenye, umkhiqizo obandayo okulula ukuwusebenzisa nokuwusebenzisa.
Uhlelo lokusebenza lomkhiqizo
1. Ifanele amagumbi angaphansi komhlaba, izindawo zokupaka ezingaphansi komhlaba, indlela engaphansi evulekile nemigudu
2. Amakhishi, izindlu zangasese, ama-slabs aphansi, ama-balconi, uphahla olungavezwanga.
3. Ukuvimbela amanzi okuqondile nokuvimbela amanzi emakhoneni, amalunga kanye neminye imininingwane emihle, kanye nokuvala amajoyina okuvimbela amanzi.
4. Ukuvimbela amanzi kumachibi okubhukuda, imithombo yokwenziwa, amathange amanzi, nemigudu yokunisela.
5. Ukuvimbela amanzi ezindaweni zokupaka kanye nophahla lwesikwele.
I-polyurethane esekelwe ku-oyela engangeni manzi iyimbongolo ephezulu yama-molecular engangeni manzi eyoma futhi iqine ngaphezulu. Yenziwe ngama-isocyanate nama-polyols njengezinto eziyinhloko, ezinama-agent ahlukahlukene ayisizayo afana nokuhlanganisa ama-hardeners afihlekile kanye nama-plasticizers, futhi akhiqizwa inqubo ekhethekile yokuphelelwa amandla kwamanzi aphezulu kanye nokusabela kwe-polymerization. Uma isetshenziswa, isetshenziswa ku-substrate engangeni manzi, futhi ifilimu eqinile, eguquguqukayo nengenamthungo ye-polyurethane engenamanzi yenziwa endaweni engaphansi ngokusabela kwamakhemikhali phakathi kweqembu lokugcina le-NCO le-polyurethane prepolymer kanye nomswakama emoyeni.
Izici Zokusebenza Komkhiqizo
1. Ukubukeka: Umkhiqizo ungumzimba ofanayo we-viscous ngaphandle kwejeli nezigaxa.
2. Ingxenye eyodwa, elungele ukusetshenziswa esizeni, ukwakhiwa okubandayo, kulula ukuyisebenzisa, futhi imfuneko yokuqukethwe komswakama we-substrate ayiqinile.
3. Ukunamathela okuqinile: Ukunamathela okuhle kukhonkolo, udaka, i-ceramics, i-plaster, izinkuni, njll. izinto zokwakha, ukuguquguquka okuhle ku-shrinkage, ukuqhekeka nokuguqulwa kwe-substrate.
4. Ifilimu ngaphandle kwemithungo: Ukunamathela okuhle, asikho isidingo sokusebenzisa i-primer kuma-substrates ahlukahlukene ahlangabezana nezidingo.
5. Amandla aphezulu wefilimu, izinga elikhulu lokwelula, ukunwebeka okuhle, ukuguquguquka okuhle kokuncipha kanye nokuguqulwa kwe-substrate.
6. Ukumelana namakhemikhali, ukumelana nokushisa okuphansi, ukumelana nokuguga, ukumelana nesikhunta, ukusebenza kahle okungangeni manzi. Uhlelo lokusebenza lomkhiqizo
I-polyurethane engenamanzi esekelwe ngamafutha ingasetshenziselwa ukwakhiwa kokuvimbela amanzi kwezakhiwo ezintsha nezindala, uphahla, izindlu zangasese, izindlu zangasese, amachibi okubhukuda, amaphrojekthi okuvikela umphakathi, njll. Ingasetshenziswa futhi ekwakhiweni okungangeni kwamanzi kwamapayipi ensimbi.
Umehluko phakathi kwe-polyurethane esekwe kuwoyela ne-polyurethane esekwe emanzini:
I-polyurethane esekwe kuwoyela inokuqukethwe okuqinile okuphakeme kune-polyurethane esekwe emanzini, kepha yenziwe nge-isocyanate, i-polyether, nama-agent ahlukahlukene ayisizayo njenge-ejenti yokwelapha efihlekile exubekile kanye nama-plasticizers, alungiselelwe izinqubo ezikhethekile ekushiseni okuphezulu, njengokususwa kwamanzi kanye ukusabela kwe-polymerization. Inezinga elikhulu lokungcola, uma kuqhathaniswa ne-polyurethane yamanzi, okuwumkhiqizo oluhlaza futhi ohambisana nemvelo ngaphandle kokungcola. Ifanele ukusetshenziswa kwangaphakathi, njengamakhishi nezindlu zangasese.
Isikhathi sokuthumela: May-29-2024