Hydroxyprupyl methylcellose (HPMC)Chinhu chakakosha chekuvaka chinowedzera, chinoshandiswa zvakanyanya mumutumbi wetsiva, marara akaoma, majasi uye mamwe minda. HPMC inopa basa rakakosha mukuchengetwa kwemvura kwemvura, uye rinogona kuvandudza zvakanyanya kugona, fluidity, kushamwaridzana uye kupaza kudzikisira kwemota. Kunyanya mukuvakwa kwemazuva ano, inotora basa risingaperi mukuvandudza kunaka uye nekuvaka kwemutya.
1. Basic hunhu hweHPMC
HPMC is cellulose derivity yakagadziridzwa ne cellulose chemistry, ine yakanaka mvura solubility, kushamisika uye zvakakora zvivakwa. Simbacelcele®HPMC mamorekuru vane mapoka maviri, hydroxyprupyl uye methyl, iyo inoita kuti ive nehunhu hwekubatanidza hydrophilicity uye hydrophos; Mabasa ayo makuru anosanganisira kurerutsa, kudzokorora kwemvura, kuvandudza rheology uye kushushikana kwemutya, nezvimwe.
2. Tsanangudzo uye kukosha kwekuchengetwa kwemvura
Kuchengetwa kwemvura kwemutya kunoreva kugona kwemutema kuchengetedza mvura panguva yekuvaka. Kurasikirwa kwemvura muMoter zvakananga kunokanganisa maitiro ayo akaomesesa, simba uye kupera kwekupedzisira. Kana iyo mvura ichikurumidza kwazvo, iyo simende uye zvimwe zvinhu zvekushandisa mudhiri hazvizove nenguva yekuita hydration yekuita, zvichikonzera kusimba kusimba kusimba uye kusimba zvisina kunaka. Naizvozvo, kuchengetwa kwakanaka kwemvura ndiyo kiyi yekuona kunaka kwemutya.
3. Mhedzisiro yeHPMC paMortar Mvura Kuchengeta
Kuwedzerwa kweHPMC kune motsi kunogona kuvandudza zvakanyanya kuchengetedza kwemvura kwemutya, iyo inonyatsoratidzwa mune zvinotevera zvinhu:
(1) Kuvandudza iyo yekuchengetedza mvura yekuchengetedza
HPMC inogona kuumba hydrogel-yakaita kunge mongwe, iyo inogona kutora uye kuchengetedza huwandu hwakawanda hwemvura, nekudaro uchinonoka kuvapurwa kwemvura. Kunyanya kana uchigadzira tembiricha yakadzika kana nzvimbo yakaoma, kuchengetwa kwemvura kweHPMC kunoita basa rakakosha. Nekuvandudza kuchengetwa kwemvura, HPMC inogona kuve nechokwadi chekuti mvura iri mudhaka inogona kutora zvizere kutora chikamu chehystem yeiyo simende uye kuvandudza simba rehudyu.
(2) Kuvandudza iyo fluidity uye kuisirwa kwemo
Munguva yekuvaka, iyo motwe inoda kuchengetedza imwezve fluity yekufambisa kushanda kwevashandi vekuvaka. Kuchengetwa kwemvura kwakanaka kunogona kudzora kukurumidza kuomesa kwekumhanyisa kwekufa, zvichiita kuti iite kuti ive ductile uye nyore kune vashandi vekuvaka kuti vatore mashandiro uye kupenya. Mukuwedzera, HPMC inogona zvakare kugadzirisa iyo viscosity yemutema uye kudzivirira kupatsanurana kana kupatsanurana, nekudaro achichengeta kufanana kwayo.
(3) kudzivirira moterar pamusoro pekupaza
Mushure mekunge HPMC inovandudza kuchengetwa kwemvura yemutya, inogona kuderedza kukurumidza kubuda kwemvura pane dhiriji uye kuderedza njodzi yekupaza. Kunyanya munharaunda ine tembiricha yakanyanya kana yekushomeka kwakadzika, kukurumidza kubuda kwemvura kunogona kukonzera nyore kukonzeresa pane dhiri. HPMC inobatsira kudzora chiyero chekunyoroveswa kwemutya nekudzora kurasikirwa kwemvura, kuchengeta kutendeka kwemvura uye kudzivisa kuumbwa kwemarara.
(4) Kuwedzera nguva yakavhurika yenguva yemota
Iyo nguva yakavhurika yemutumbi inoreva nguva iyo motwe inogona kushanda panguva yekuvaka maitiro. Kupfupisa nguva yakavhurika inokanganisa kushanda kwekuvaka. Kuwedzerwa kweHPMC kunogona kuwedzera nguva yekuvhurika kwevhu, kupa vashandi vekuvaka nguva yakawanda yekuita mashandiro akadai sekupenya uye kunhuhwirira. Kunyanya munzvimbo dzakaomarara, kusimbirira nguva yakavhurika kunogona kuve nechokwadi chekudonhedza uye kuiswa kwemutema.
4
Iyo mainini makuru eHPMC mukuvandudza kuchengetedza kwemvura kune zvinotevera:
(1) hydration uye molecular chimiro
HPMC mamorekuru ane nhamba yakakura yehydrophilic hydroxyl (-OOOH) uye hydroxypruppropyl (-ch2oh) mapoka, ayo anogona kuumba hydrogen zvisungo nemamolekyudhi emamolekyudhi uye kusimudzira adsorption yemamolekyudhi emvura. Mukuwedzera, HPMC ine yakakura molecular chimiro uye inogona kuumba matatu-dimensional network network mudhara, iyo inogona kutora uye kuchengetedza mvura uye kudzora mwero wekuyerera kwemvura.
(2) wedzera kusimba uye viscosity yerudzi
Paunenge uchidemba Kunyanya munzvimbo yakaoma yekuvaka, iyo inoshamisa yeHPMC inobatsira kuvandudza maitiro e-dhizaini yekuparadza.
(3) kuvandudza kugadzikana kwechimiro kwerudzi
HPMC inogona kusimudzira kubatana kweiyo durari uye kuvandudza kugadzikana kwechimiro kweiyo duri kuburikidza neyakawirirana international yekudyidzana. Kugadzikana uku kunotendera kunyorova kweguruva kuti kuchengetwe pakati peiyo simenti zvikamu kwenguva yakareba, nekudaro zvichisimbisa zvizere kuita uye nemvura uye nekuvandudza simba rehudyu.
5. Mhedzisiro yeHPMC mune inoshanda application
Mune zvinoshanda zvinoshandiswa,Hpcinowanzoshandiswa pamwe chete nezvimwe zvinowedzera (senge mapurasitiki, yakavaparadzira, nezvimwewo) kuti uwane pabasa rakanakisa remutya. Kuburikidza nezvakaenzana, HPMC inogona kutamba dzakasiyana siyana mumhando dzakasiyana dzemota. Semuenzaniso, mune yakajairika simende dorari, dhizaini yemota, yakaoma marara, nezvimwe, inogona kuvandudza zvinobudirira kuchengetwa kwemvura uye zvimwe zvivakwa zvemutya.
Basa reHPMC muMoltar haigone kurerutswa. Inovandudza zvakanyanya kunaka uye shandisa mhedzisiro yehudyu nekuvandudza kuchengetwa kwemvura kwemvura, nekuwedzera nguva yakavhurika, uye kuvandudza mashandiro ekuvaka. Mukuvaka kwazvino, nekuwedzera kuoma kwehunyanzvi hwekuvaka uye kuenderera mberi kwekuvandudza kwemutumbi pabasa rekuita, HPMC, seyakawedzera kuwana, iri kutamba chiitiko chinowedzera chakakosha.
Kutumira Nguva: Kukadzi-15-2025