Yiziphi izinhlobo zabakhulu abakhona kupende osuselwa emanzini?

Upende osuselwa emanzini ubhekisela ohlotsheni lopende olusebenzisa amanzi njenge-solvent noma i-dispersion medium. Upende osuselwa emanzini usephenduke ukuqondiswa kwentuthuko okuzayo ngenxa yokungabi nalo, okulula ukuhlanza, izindleko eziphansi, ukuhlakanipha okuphansi, okungekho emceny. Izengezo ngepende zisetshenziswa ngamanani amancane kupende osuselwa emanzini, kepha zingathuthukisa kakhulu ukusebenza kwamapende futhi zibe yingxenye ebaluleke kakhulu yepende.AmakhuluIngabe isengezo se-rheological esingakwazi ukukhuphuka kuphela ngopende futhi sivikele ukugcwala ngesikhathi sokwakha, kodwa futhi sinikeze ngepende lezakhiwo ezinhle kakhulu zemishini nokuqina kwesitoreji. Omampunge osuselwa emanzini ngokubonakala okuphansi, kuwuhlobo olubaluleke kakhulu lwesengezo.

Abakhudlwana bamanzi asuselwa emanzini bangathuthukisa izakhiwo ze-bheological of Paints futhi basize ukuthuthukisa i-pseudoplasticity of Paints. Lapho kusetshenziswa amanani aphezulu we-shear, upende ungancishiswa kalula, futhi lapho ama-shear amisiwe noma amandla aphansi we-shear asetshenziswa, upende lungaphinde lube khona. Lezi zici zingenza, ngakolunye uhlangothi, zithuthukise ukuqina kwesitoreji sopende futhi zigweme ukudonswa kwemibala kanye nama-filler kupende. Ngasikhathi sinye, ngesikhathi senqubo yokufafaza, basiza i-ation of paints esekwe emanzini. Ngakolunye uhlangothi, ngesikhathi sokwakha, zingavimba ukugcwala ngopende futhi ziqinisekise ukuthi upende unokwenziwa okuhle kokwakhiwa.

Ake sibheke izici zabakhulu abahlukahlukene.

1. I-cellulose sikhulu

CelluloseAmakhuluube nokusebenza kahle okuphezulu, ikakhulukazi ngokuqina isigaba samanzi. Banemikhawulo embalwa ekunikezelweni kwenhlanganisela kanye nobubanzi be-PH. Kodwa-ke, zinobunzima obuthile, ezinjengezinga elibi, zigaxeke ngokwengeziwe ngesikhathi sokuhlanganiswa kwe-roller, kanye nokuba semaphukule ekuwohlokeni kwe-microbial. Njengoba benokuvunywa okuphansi ngaphansi kwe-shear ephezulu nokubonakala okuphezulu ngaphansi kwe-shear eluhlaza futhi ephansi, i-viscosity inyuka ngokushesha ngemuva kokuhlangana, kepha ngakolunye uhlangothi, kungadala ukugcwala. Abakhulu be-cellulose banesisindo esikhulu se-molecular mass, ngakho-ke bathambekele ekuchithekeni. Futhi ngenxa yokuthi i-cellulose ine-hydrophilicity enhle, izonciphisa ukumelana kwamanzi kwefilimu yokupenda.

2. Abahlanganisi be-Polyurethane Findeners

Isakhiwo esihlangene sabahlanganisi abahlangene se-Polyurenene babhujiswa ngaphansi kwesenzo se-shear Force, futhi ukuhlakanipha kuyancipha. Lapho amandla e-shear enyamalala, ukubonwa kungabuyiselwa ukuze kuvikeleke ukugcwala ngesikhathi sokwakha. Futhi ukululama kwalo kwe-viscosity kune-hysteresis ethile, evumelana nokufakwa kwezinga lefilimu yokuhlanganisa. Inqwaba ye-molecular enkulu ye-polyurethane likhulu kakhulu kunaleyo yezinhlobo ezimbili zokuqala zabakhulu, futhi ngeke ikhuthaze ukufiphala. Ama-molecule e-polyurethane amakhulu anama-hydrophilic ne-hydrophobic. Amaqembu e-hydrophobic anobudlelwano obuqinile ne-matrix yefilimu yokuhlanganisa, engakhulisa ukumelana kwamanzi kwefilimu yokuhlanganisa.

Ngoba izinhlayiya ze-latex zibamba iqhaza enhlanganweni, akukho mbumbulu ezokwenzeka, okungenza ifilimu lokuhlanganisa libe bushelelezi futhi libe nesicwebezelisi esiphezulu. Izakhiwo eziningi zabahlanganisi be-polyurenenes zingcono kunabanye abakhulu, kepha ngenxa yendlela yayo yokuqina ye-microllar, izakhi ezithinta ama-miClelles kwifomula yokuhlanganisa zizothinta ngokungenakuphikiswa impahla. Lapho usebenzisa lolu hlobo lomkhulu, ithonya lezinto ezahlukahlukene ekusebenzeni kokuqina kufanele libhekwe ngokuphelele. Musa ukufaka esikhundleni se-emulsion, deforsant, dispersant, usizo lwefilimu, njll. Kusetshenziswe ku-coating.

Qingdao Fuusiisi High-Tech Matering Co, Ltd. Ngokukhethekile ekukhiqizeni okuhlukahlukeneAmakhulu. Le nkampani ilandele umqondo wokulawulwa okugxilwe kakhulu nokuthembekile iminyaka eminingi, futhi ilwela ukuhlinzeka amakhasimende ngemikhiqizo ethembekile kanye nenkonzo enhle yokuthengisa!