Tile adhesive inonamira inoshandiswa kunamira mataira, uye kuita kwayo kunokanganisa zvakananga kunaka kwekuvaka uye hupenyu hwebasa rematairi. Kuvhura nguva chiratidzo chakakosha chekushanda kwetairi adhesive, iyo inoreva nguva yenguva iyo tile yekunamatira inogona kuchengetedza kushanda kwayo kwekubatanidza mushure mekushandiswa kune base layer isati yaoma. Hydroxypropyl Methylcellulose (HPMC), sechinhu chinowanzo shandiswa gobvu uye chekuchengetedza mvura, inoita basa rakakosha mukugadzirisa nguva yakavhurika yekunamatira mataira.
Basic zvimiro zveHPMC
HPMC is a non-ionic cellulose ether ine yakanaka thickening, kuchengetedza mvura, firimu-kugadzira uye lubricating properties. Yayo molecular chimiro ine hydroxypropyl uye methyl substituents, iyo inogonesa kunyungudika mumvura kuti igadzire viscoelastic mhinduro, nekudaro ichiwedzera viscosity uye kugadzikana kwehurongwa. Mukunamatira mataira, HPMC haingogone kuvandudza mashandiro ekuvaka, asi zvakare kuwedzera nguva yakavhurika nekugadzirisa chiyero chekubuda kwemvura.
Mechanism yekupesvedzera kweHPMC pane yakavhurika nguva yekunamatira mataira
Kuchengetedzwa kwemvura: HPMC ine yakanakisa kuchengetedza kwemvura uye inogona kunyatso kudzora mwero wekubuda kwemvura. Kuwedzera HPMC kune formula yekunamatira tile inogona kuumba firimu rakatetepa mushure mekushandisa, kunonoka kudonha kwemvura uye nekudaro kuwedzera nguva yakavhurika. Izvi zvinonyanya kukosha pakuvaka munzvimbo yakaoma, nokuti kukurumidza kubuda kwemvura kuchaita kuti tile yekunamatira irasikirwe nekubatana kwayo nguva isati yakwana.
Kuomesa mhedzisiro: HPMC inogona kuwedzera zvakanyanya viscosity yekunamira mataira, zvichiita kuti ive nani mukuvaka uye kupfekedza zvivakwa. Yepamusoro viscosity inogona kuve nechokwadi chekuti tile inonamira inogona kuvharira chigadziko chepasi mushure mekushandisa, ichigadzira yakagadzika yekunamira layer, uye kuderedza dambudziko rekupfupikiswa yakavhurika nguva nekuda kwekunyanya kutetepa yekunamatira layer.
Firimu-yekugadzira pfuma: Mushure mekunge HPMC yanyungudika mumvura, inogona kugadzira firimu rine rimwe simba. Iyi firimu haigoni kuchengetedza mvura chete, asiwo inogadzira chidziviriro chekudzivirira pamusoro peiyo tile yekunamatira kudzivirira kunze kwemhepo uye chiedza chezuva kubva pakuita zvakananga pamucheka wekunamatira uye kukurumidza kubuda kwemvura. Izvo zviri nani iyo firimu-yekugadzira pfuma, iyo yakareba nguva yakazaruka.
Zvinhu zvinokanganisa mhedzisiro yeHPMC
Huwandu hweHPMC hwakawedzerwa: Huwandu hweHPMC hwakawedzerwa ndechimwe chezvinhu zvakakosha zvinokanganisa nguva yakavhurika yekunamatira mataira. Kazhinji kutaura, huwandu hwakakodzera hweHPMC hunogona kurebesa nguva yakavhurika, asi yakawandisa huwandu huchaita kuti viscosity yekunamatira mataira kuve yakakwira zvakanyanya, zvichikanganisa zvivakwa zvekuvaka. Naizvozvo, kana uchigadzira fomula, zvinodikanwa kuti uigadzirise zvinoenderana nezvinodiwa chaizvo uye nharaunda yekuvaka.
HPMC viscosity giredhi: HPMC yeakasiyana viscosity mamakisi inoitawo zvakasiyana mukunamira mataira. High-viscosity HPMC inogona kupa yakasimba kuchengetedza kwemvura uye kukora mhedzisiro, asi ichawedzerawo rheology yecolloid, izvo zvingave zvisina kunaka pamabasa ekuvaka. Low-viscosity HPMC ndiyo inopesana. Naizvozvo, zvinodikanwa kuti usarudze iyo yakakodzera HPMC viscosity giredhi zvinoenderana neiyo chaiyo application mamiriro ekunamatira mataira.
Mamiriro ekuvaka: Zvinhu zvakaita senge ambient tembiricha uye humidity zvinokanganisa mashandiro eHPMC mukunamira kwematairi. Munzvimbo yakakwirira yekupisa uye yakaoma, mvura inoputika nokukurumidza, uye nguva yakazaruka inogona kupfupiswa kunyange kana HPMC yakawedzerwa. Pane zvinopesana, munharaunda ine humidity yakakwira, iyo mvura yekuchengetedza mhedzisiro yeHPMC inonyanya kukosha, uye iyo yakavhurika nguva inowedzera zvakanyanya.
Chidzidzo chekuedza
Mhedzisiro yeHPMC pane yakavhurika nguva yekunamatira mataira inogona kuverengerwa kuburikidza nekuyedza. Matanho anotevera ekuedza anogona kazhinji kugadzirwa:
Sample kugadzirira: Gadzirira mataira anonamira masampula ane akasiyana HPMC ekuwedzera huwandu uye viscosity mamakisi.
Vhura bvunzo yenguva: Pasi pemamiriro ekunze akajairwa, isa tirairi yekunamatira pane yakajairwa base layer, batanidza mataira panguva dzenguva, rekodha shanduko mukuita bonding, uye sarudza nguva yakavhurika.
Ongororo yedata: Enzanisa iyo yakavhurika data data pasi pemamiriro akasiyana uye ongorora mhedzisiro yeHPMC yekuwedzera uye viscosity giredhi panguva yakavhurika.
Sekuwedzera kwakakosha, HPMC inogona kuwedzera zvakanyanya nguva yakavhurika yekunamatira mataira kuburikidza nekuchengetedza kwayo mvura, kukora uye firimu-kugadzira zvinhu. Mumashandisirwo anoshanda, kusarudzwa kwakanaka uye kuwedzera kweHPMC kunogona kunyatso kuvandudza mashandiro ekuvaka uye bonding mhedzisiro yekunamatira mataira. Nekudaro, mhedzisiro yeHPMC inokanganiswawo nezvakawanda zvinhu, izvo zvinoda kunyatsotariswa mune chaiyo fomula dhizaini uye maitiro ekuvaka kuti uwane yakanakisa mhedzisiro.
Nguva yekutumira: Jul-26-2024