Putty chinhu chakakosha chekuvaka chinoshandiswa pakuenzana kwemadziro, uye mashandiro ayo anokanganisa zvakananga kunamira kwependi uye kunaka kwekuvakwa kwayo. Mukugadzirwa kweputty, zvinowedzera zve cellulose ether zvine basa rakakosha.Hydroxypropyl Methylcellulose (HPMC), seimwe ye cellulose ethers dzinonyanya kushandiswa, inogona kuvandudza viscosity, mashandiro ekuvaka uye kugadzikana kwekuchengetedza kweputty.
1. Hunhu hweHydroxypropyl Methylcellulose
HPMC ipolymer isinganyungudike mumvura ine ukobvu hwakanaka, inochengetedza mvura, inopararira, inosanganisa mvura uye inoita firimu. Kusimba kwayo kunokanganiswa nedanho rekutsiva, danho repolymerization uye mamiriro ekunyungudika. Mhinduro yemvura yeAnxinCel®HPMC inoratidza hunhu hwemvura yepseudoplastic, ndiko kuti, kana shear rate ikawedzera, kusimba kwemvura kunoderera, izvo zvakakosha pakuvaka putty.
2. Mhedzisiro yeHPMC pakukora kweputty
2.1 Mhedzisiro yekukora
HPMC inoumba mhinduro ine viscosity yakakura mushure mekunyungudika mumvura. Kusimba kwayo kunonyanya kuratidzwa muzvinhu zvinotevera:
Kuvandudza thixotropy yeputty: HPMC inogona kuchengetedza putty iri pa viscosity yakanyanya kana yakamira kudzivirira kudzika, uye kuderedza viscosity painokwesha uye kuvandudza mashandiro ekuvaka.
Kuvandudza mashandiro eputty: Huwandu hwakakodzera hweHPMC hunogona kuwedzera mafuta eputty, zvichiita kuti kukwenya kuve kwakapfava uye kuderedza kuramba kwekuvaka.
Kukanganisa simba rekupedzisira reputty: Kukora kweHPMC kunoita kuti filler nezvinhu zvinosimbisa zviri muputty zvipararire zvakaenzana, zvichidzivirira kupatsanurwa uye zvichivandudza mashandiro ekuomesa mushure mekuvakwa.
2.2 Mhedzisiro pakuita kwemvura mumuviri
HPMC ine hunhu hwakanaka hwekuchengetedza mvura, izvo zvinogona kuderedza kubuda kwemvura nekukurumidza muputty layer, nokudaro zvichiita kuti putty yakagadzirwa nesimende iwedzere nguva yemvura uye kuwedzera simba uye kuramba kupwanyika kweputty. Zvisinei, kupenya kwakanyanya kweHPMC kunokanganisa kupenya kwemhepo uye kumhanya kwekuoma kweputty, zvichikonzera kudzikira kwekushanda kwekuvaka. Nokudaro, huwandu hweHPMC hunofanirwa kuve nechokwadi chekuti inoshanda zvakanaka uku uchidzivirira migumisiro yakaipa panguva yekuoma.
2.3 Hukama huripo pakati pehuremu hwemamorekuru eHPMC nekusimba kweputty
Kana huremu hweHPMC hwakakwira, ndipo panowedzera kusimba kwemvura. Muputty, kushandiswa kweHPMC ine viscosity yakakura (yakadai semhando ine viscosity inodarika 100,000 mPa·s) kunogona kuvandudza zvakanyanya kuchengetedza mvura uye hunhu hweputty hunodzivirira kudzika, asi zvinogonawo kukonzera kudzikira kwekushanda. Saka, pasi pezvinodiwa zvakasiyana zvekuvaka, HPMC ine viscosity yakakodzera inofanira kusarudzwa kuti ienzanise kuchengetedza mvura, kushanda uye kushanda kwekupedzisira.
2.4 Mhedzisiro yemuyero weHPMC pahukobvu hweputty
Huwandu hweAnxinCel®HPMC hwakawedzerwa hune simba guru pakukora kweputty, uye chiyero chinowanzova pakati pe0.1% ne0.5%. Kana chiyero cheHPMC chakaderera, simba rekukora paputty rinova shoma, uye rinogona kusakwanisa kuvandudza kushanda zvakanaka uye kuchengetwa kwemvura. Kana chiyero chakanyanya, kukora kweputty kwakakura zvakanyanya, kuramba kwekuvaka kunowedzera, uye zvinogona kukanganisa kumhanya kwekuoma kweputty. Saka, zvakakosha kusarudza huwandu hwakakodzera hweHPMC zvichienderana nefomula yeputty nenzvimbo yekuvaka.
Hydroxypropyl methylcellulose ine basa guru mukukora, kuchengetedza mvura uye kuvandudza kushanda kweputty. Huremu hwemamorekuru, mwero wekutsiva uye huwandu hwekuwedzera kweHPMCzvichakanganisa kusimba kweputty. Huwandu hwakakodzera hweHPMC hunogona kuwedzera kushanda uye kuramba mvura kweputty, nepo kuwedzera zvakanyanya kunogona kuwedzera kuoma kwekuvaka. Saka, pakushandisa putty chaiyo, hunhu hwekusimba uye zvinodiwa zvekuvaka zveHPMC zvinofanirwa kutariswa zvizere, uye fomura inofanira kugadziriswa zvine musoro kuti iwane kushanda kwakanakisa kwekuvaka uye mhando yekupedzisira.
Nguva yekutumira: Kukadzi-10-2025