Namuhla sizogxila ekutheni ukwengeza kanjani izinhlobo ezithile zabakhulu.
Izinhlobo zezikhukhula ezisetshenziswa kakhulu ziyi-inorganic, iselula, i-acrylic ne-polyurethane.
-Ngakhethiweyo
Izinto ze-inorganic ikakhulukazi ze-bentonite, zithambe i-silicon, njll.
Kukhona nengxenye encane ezohlakazeka ngaphambili futhi ilungiselelwe kwijeli ukuze isetshenziswe.
Zingezwa kupende ngokugaya ukwenza inani elithile le-pre-gel. Kukhona futhi okulula ukuhlakazeka futhi kungenziwa ngejeli ngokuvuselelwa ngejubane eliphezulu. Ngesikhathi senqubo yokulungiselela, ukusetshenziswa kwamanzi afudumele kungakhuthaza le nqubo.
Cellulose
Umkhiqizo osetshenziswa kakhulu we-cellulosicI-Hydroxyyethyl cellulose (HEC). Ukugeleza okungalungile nokulinganisa, ukumelana kwamanzi okunganele, i-anti-isikhunta nezinye izakhiwo, akuvamile ukusetshenziswa kupende wezimboni.
Lapho kufakwa, kungangezwa ngqo noma kuchithwe emanzini kusenesikhathi.
Ngaphambi kokungezwa, ukunakwa kufanele kukhokhwe ukuze kulungiswe i-PH yohlelo ezimeni ze-alkaline, ezilungele ukukhula kwayo ngokushesha.
Acile ama acrylic
Abakhulu be-acrylic banezicelo ezithile kupende wezimboni. Isetshenziswa kakhulu embonweni ojwayelekile ofana nengxenye eyodwa kanye ne-High Pigment-to-Base Ratio, njengezakhiwo zensimbi kanye nezinto zokuvikela.
E-TopCoat (ikakhulukazi i-topcoat ecacile), ingxenye emibili, i-varnish ebhekisisa, upende ophakeme nezinye izinhlelo, inezinhlelo ezithile futhi ayikwazi ukuba nekhono ngokugcwele.
Umgomo wokuqina we-acrylic mkhulu yile: Iqembu le-carboxyl ku-polymer chain liguqulwa libe yi-carboxybate ye-ionised ngaphansi kwezimo ze-alkali, futhi umphumela wokuqina utholakala ngokuxoshwa ngogesi.
Ngakho-ke, i-PH yesimiso kufanele ilungiswe ku-alkaline ngaphambi kokusetshenziswa, futhi i-PH kufanele futhi inakekelwe ku> 7 ngesikhathi esilandelayo.
Ingangezwa ngokuqondile noma ihlanjululwe ngamanzi.
Ingancishiswa kuqala ukusetshenziswa kwezinye izinhlelo ezidinga ukuqina okuphezulu kwento yokubona. Okungukuthi: Qeda ubukhulu be-acrylic ngamandla ngamanzi, bese wengeza i-PH adjuster ngenkathi uvusa. Ngalesi sikhathi, ikhambi liyaqina ngokusobala, lisuka emlonyeni oMilyy lize linamathiselwe obala, futhi lingasala ukulisebenzisa kamuva.
Ukusebenzisa le ndlela kuhlabela ukusebenza kahle okukhuphuka, kepha kungakhulisa ngokuphelele umkhulu osekuqaleni ekuqaleni, okulungele ukuqina kokubonakala ngemuva kokupenda kwenziwa.
Enqubweni yokwakhiwa nokukhiqizwa kwe-H1260 esekelwe ku-powder esekelwe engxenyeni eyodwa ye-powder point, i-mkhulu isetshenziswa ngale ndlela.
Polyurethane
Abakhulu be-polyurethane basetshenziswa kabanzi egqoke izimboni ezisebenza kahle futhi zilungele ukusetshenziswa ezinhlelweni ezahlukahlukene.
Kuhlelo lokusebenza, asikho isidingo kuhlelo lwe-PH yohlelo, lungezwa ngqo noma ngemuva kwe-dilution, kungaba ngamanzi noma nge-solvent. Abanye abakhudlwana bane-hydrophicility engezinhle futhi abanakuhlanjululwa ngamanzi, kepha bangahlanjululwa kuphela ngama-sol sol.
uhlelo lwe-emulsion
Izinhlelo ze-emulsion (kufaka phakathi ama-acrylic emulsions kanye ne-hydroxypropyl emulsions) azinawo izixazululo futhi kulula ukuqina. Kuhle ukungeza ngemuva kwe-dilution. Lapho uncipha, ngokuya ngokuqina kokuqina komkhulu, unciphise isilinganiso esithile.
Uma ukusebenza kahle kokuqina kuphansi, isilinganiso se-dilution kufanele sibe ngaphansi noma singaxutshwa; Uma ukusebenza kahle kokuqina kuphezulu, isilinganiso se-dilution kufanele sibe ngaphezulu.
Isibonelo, i-Polyurethane associative ye-SV-1540 Polyurethane Compenener inokusebenza okuphezulu okuphezulu. Uma isetshenziswa ohlelweni lwe-emulsion, kuhlanjululwe kaningi izikhathi eziyi-10 noma izikhathi ezingama-20 (10% noma i-5%) ukuze zisetshenziswe.
Ukuhlakazwa kwe-Hydroxypropyl
I-Hydroxypropyl Dissaverion Resin ngokwayo iqukethe inani elithile le-solvent, futhi akulula ukuqina ngesikhathi sokwenza upende. Ngakho-ke, i-polyurethane ngokuvamile ingezwe ngesilinganiso esiphansi se-dilution noma ingezwe ngaphandle kwe-dilution kulolu hlobo lohlelo.
Kuyaqapheleka ukuthi ngenxa yethonya lemali enkulu yama-solvents, umphumela wokuqina wezinqwaba eziningi ze-polyurethane kulolu hlobo alubonakali, futhi umkhulu ofanelekile udinga ikhethwe ngendlela eqondisiwe. Lapha, ngithanda ukuncoma i-SV-1140 Polyurethane Associative Emikhulu, enokusebenza kahle okuphezulu kakhulu futhi inokusebenza okuhle kakhulu ezinhlelweni eziphezulu ze-solvent.
Isikhathi sePosi: APR-25-2024