Indima yei-polymer powder ehlakazeka kabushakweukwakhiwaimboni ayikwazi ukubukelwa phansi. Njengento esetshenziswa kabanzi yokwengeza, kungashiwo ukuthi ukubukeka kwe-polymer powder ehlakazeka kabusha kuye kwathuthukisa ikhwalithi yokwakha ngamabanga angaphezu kwelilodwa. Ingxenye eyinhloko yempushana ye-polymer ehlakazeka kabusha i-organic macromolecular polymer enezici ezinzile. Ngesikhathi esifanayo, i-PVA yengezwa njenge-colloid evikelayo. Ivamise ukuba yimpuphu ezingeni lokushisa lasekamelweni. Ikhono lokunamathela linamandla kakhulu futhi ukusebenza kokwakha nakho kuhle kakhulu. Ngaphezu kwalokho, lolu hlobo lwe-polymer powder lungathuthukisa ngokusobala ukumelana nokugqoka kanye nokusebenza kokumuncwa kwamanzi odongeni ngokuthuthukisa ukuhlangana kodaka. Ngesikhathi esifanayo, amandla okubumbana nokukhubazeka nakho kuqinisekile. izinga lokuthuthuka.
Impushana ye-latex ehlakazeka kabushailuhlaza, ivumelana nemvelo, igcina amandla kagesi, impushana yekhwalithi ephezulu enezinjongo eziningiimpahla yokwakha, futhi iyisengezo esibalulekile nesibalulekile esisebenzayoudaka oluxutshwe owomile. Ingathuthukisa ukusebenza kodaka, yandise amandla odaka, yandise amandla okubopha phakathi kodaka nama-substrates ahlukahlukene, ithuthukise ukuguquguquka nokusebenza, amandla acindezelayo, amandla okuguquguquka, ukumelana nokugqoka, ukuqina, kanye ne-viscosity yodaka. Umthamo wokudlulisa kanye nokugcinwa kwamanzi, ukwakheka. Ukusebenza kwe-latex powder ehlakazeka kabusha ngaphakathii-tile yokunamathiselainamandla uma kuqhathaniswa, futhi impushana ye-latex ehlakazeka kabusha inekhono eliphezulu lokubopha kanye nezakhiwo ezihlukile.
I-latex powderkuthuthukisa ukungaguquguquki nokushelela kwesistimu esimweni sokuxuba esimanzi. Ngenxa yezici ze-polymer, ukuhlangana kwezinto zokuxuba ezimanzi kuthuthukiswa kakhulu, futhi kunomthelela omkhulu ekusebenzeni; ngemva kokumisa, inikezaukunamathela kuya kungqimba lwangaphezulu olubushelelezi nominyene, Thuthukisa umphumela wesihlabathi, amatshe nezimbotshana. Ngaphansi kwesisekelo sokuqinisekisa inani lokwengeza, lingathuthukiswa libe yifilimu esibonakalayo, ukuze i-adhesive tile ibe nokuguquguquka okuthile, inciphise ukunwebeka.odulus, futhi imunca ingcindezi yokuguquguquka okushisayo ngezinga elikhulu. Esimeni sokucwiliswa kwamanzi esigabeni sakamuva, kuzoba nezingcindezi ezinjengokumelana namanzi, izinga lokushisa le-buffer, kanye nokuguqulwa kwezinto ezingahambisani (i-tile deformation coefficient 6×10-6/℃, i-coefficient yokuguga kukasimende 10×10-6/℃) , futhi uthuthukise ukumelana nesimo sezulu.
Ukwengezwa kwe-latex powder e-redispersible kuma-adhesives we-tile kunomphumela osobala kakhulu ekuthuthukisweni kokusebenza kwe-adhesives esekelwe usimende, futhi kunomthelela omkhulu emandleni okubopha, ukumelana kwamanzi, nokumelana nokuguga kwe-adhesive. Kunezinhlobo eziningi zempushana ye-latex ehlakazeka kabusha yezinamatheliso zamathayela emakethe, njenge-acrylic redispersible latex powder, i-styrene-acrylic powder, i-vinyl acetate-ethylene copolymer, njll. Ngokuvamile, izinto zokunamathisela zamathayela ezisetshenziswa kumathayela emakethe zingaphinde zihlakazwe. . Iningi lempushana ye-latex ehlakazekayoi-vinyl acetate-ethylene copolymer.
(1) Njengoba inani likasimende likhula, amandla okuqala empushana ye-latex ehlakazeka kabusha yokunamathisela ithayela ayanda, futhi ngesikhathi esifanayo, amandla okunamathela aqinile ngemva kokucwiliswa emanzini kanye namandla okunamathela aqinile ngemva kokuguga kokushisa nawo ayanda.
(2) Ngokukhula kwenani lempushana ye-latex ehlakazeka kabusha yokunamathela kuthayela, amandla ebhondi eqinile yempushana ye-latex ehlakazeka kabusha yokunamathela kuthayela ngemva kokucwiliswa emanzini kanye namandla esibopho esiqinile ngemva kokuguga kokushisa anda ngokufanele, kodwa ukuguga okushisayo Ngemva kwalokho. , amandla esibopho esiqinile anda kakhulu.
Indlela yendabuko yokunamathisela yama-tile iyindlela yokwakha ungqimba olujiyile, okungukuthi, qala ngokufaka udaka olujwayelekile ngemuva kwama-tile, bese ucindezela amathayili kungqimba oluyisisekelo. Ubukhulu bengqimba yodaka cishe buyi-10 kuya ku-30mm. Nakuba le ndlela ifaneleka kakhulu ukwakhiwa ezisekelweni ezingalingani, ukungalungi ukusebenza kahle okuphansi kweukufaka amathayela, izidingo eziphakeme zobuchwepheshe babasebenzi, ingozi eyengeziwe yokuwa ngenxa yokungaguquguquki kahle kodaka, nobunzima bokulungisa udaka esizeni sokwakha. Ikhwalithi ilawulwa ngokuqinile. Le ndlela ifaneleka kuphela kumathayili anezinga eliphezulu lokumuncwa kwamanzi. Ngaphambi kokunamathisela amathayili, amathayili adinga ukucwiliswa emanzini ukuze athole amandla ebhondi anele.
Isikhathi sokuthumela: Jul-04-2023