Hydroxypropyl methyl cellulose yakakamurwa kuita mhando dzakasiyana-siyana, uye musiyano uripi pakushandiswa kwayo?
HPMC inogona kukamurwa kuita mhando dzeinstant melt nehot-melt. Zvigadzirwa zvinokurumidza kupararira nekukurumidza mumvura inotonhora uye zvinonyangarika mumvura. Panguva ino, mvura haina viscosity, nekuti HPMC inongopararira mumvura chete uye hainyungudike chaizvo. Mushure memaminitsi maviri (kusanganisa), viscosity yemvura inowedzera zvishoma nezvishoma, zvichiita colloid chena yakajeka ine viscous. Zvigadzirwa zvinonyungudika zvinopisa zvinogona kupararira nekukurumidza mumvura inopisa uye zvinonyangarika mumvura inopisa kana zvaungana mumvura inotonhora. Kana tembiricha yadzikira kusvika kune imwe tembiricha (zvichienderana netembiricha yegel yechigadzirwa), viscosity inooneka zvishoma nezvishoma kusvika colloid yakajeka ine viscous yaumbwa.
Maitiro ekutonga mhando yehydroxypropyl methyl cellulose zviri nyore uye nenzira intuitively?
Kuchena. Kunyange zvazvo kuchena kusingakwanise kuona kana HPMC iri nyore kushandisa, uye kana mishonga yekuchenesa ikawedzerwa mukugadzirwa kwayo, inokanganisa kunaka kwayo, zvigadzirwa zvakawanda zvakanaka zvine kuchena kwakanaka.
Kupfava: kupfava kweHPMC kunowanzova 80 mesh uye 100 mesh, uye 120 mesh ishoma. Kupfava kushoma ndiko kunowedzera kunaka.
Kutumira chiedza: mushure mekunge HPMC yaiswa mumvura kuti igadzire colloid inoonekera, tarisa kutumirwa kwayo kwechiedza. Kutumira chiedza kwakakura, ndiko kuri nani. Zvinoreva kuti hapana zvinhu zvakawanda zvisinganyunguduke mairi. Kutumira kwe vertical reactor kazhinji kwakanaka, uye kwe horizontal reactor kwakaipa. Zvisinei, hazvirevi kuti mhando ye vertical reactor iri nani pane ye horizontal reactor. Pane zvinhu zvakawanda zvinosarudza mhando yechigadzirwa.
Simba remagetsi rakasiyana: simba remagetsi rakasiyana rakasiyana rakakura, rinorema, uye rinowedzera kunaka. Kazhinji, imhaka yekuti huwandu hwehydroxypropyl huri mairi hwakakwira. Kana huwandu hwehydroxypropyl hwakakwira, kuchengetedza mvura kuri nani.
Simba remagetsi rakasiyana: simba remagetsi rakasiyana rakasiyana rakakura, rinorema, uye rinowedzera kunaka. Kazhinji, imhaka yekuti huwandu hwehydroxypropyl huri mairi hwakakwira. Kana huwandu hwehydroxypropyl hwakakwira, kuchengetedza mvura kuri nani.
Ndedzipi nzira dzekunyungudutsa hydroxypropyl methyl cellulose?
Mhando dzese dzinogona kuwedzerwa kune zvinhu nenzira yekusanganisa yakaoma;
Kana ichifanira kuwedzerwa zvakananga mumushonga wemvura patembiricha yemumba, zviri nani kushandisa rudzi rwekupararira kwemvura inotonhora. Kazhinji, inogona kukora mukati memaminitsi gumi kusvika makumi mapfumbamwe mushure mekuwedzera (kusanganisa).
Mamodheru akajairwa anogona kunyungudutswa mushure mekusanganisa nekuparadzanisa nemvura inopisa, kuwedzera mvura inotonhora, kusanganisa nekutonhodza;
Kana kuchekwa nekuputirwa zvikaitika panguva yekunyungudika, zvinokonzerwa nekusasanganiswa kwakakwana kana kuti mhando dzakajairika dzinowedzerwa zvakananga mumvura inotonhora. Panguva ino, inofanira kukurunganiswa nekukurumidza.
Kana mabhubhu akagadzirwa panguva yekunyungudika, anogona kubviswa nekumira kwemaawa 2-12 (nguva yakatarwa inoenderana nekuenderana kwemushonga), kupukuta, kudzvanya uye dzimwe nzira, kana kuwedzera huwandu hwakakodzera hwe defoamer.
Chii chinoita hydroxypropyl methyl cellulose mukushandiswa kweputty powder, uye kana paine chemistry?
Muupfu hweputty, hunoita mabasa matatu: kukora, kuchengetedza mvura uye kuvaka. Kukora, cellulose inogona kukoira, kuita basa rekumisa, kuchengetedza mhinduro yakafanana kumusoro nekudzika, uye kuramba kudzika. Kuchengetwa kwemvura: kuita kuti upfu hweputty huome zvishoma nezvishoma, uye kubatsira lime calcium kuti iite chiito pasi pesimba remvura. Kuvakwa: cellulose ine mafuta ekuzora, izvo zvinogona kuita kuti upfu hweputty hushande zvakanaka. HPMC haibatanidzi mune chero reaction yemakemikari, asi inongoita basa rekubatsira chete.
Chii chinoenderana nekupisa kwegel kwehydroxypropyl methyl cellulose?
Kupisa kwejeli kweHPMC kunoenderana nehuwandu hwemethoxyl. Kana methoxyl iri shoma, tembiricha yejeli inowedzerawo.
Pane hukama huripo pakati pekudonha kweputty powder nehydroxypropyl methyl cellulose here?
Zvinokosha!!! HPMC haina mvura yakakwana, izvo zvinokonzera kurasikirwa nehupfu.
Kushandiswa kwehydroxypropyl methyl cellulose muputty powder, chii chinokonzera mabubbles muputty powder?
HPMC ine mabasa matatu muupfu hweputty: kukora, kuchengetedza mvura uye kuvaka. Zvikonzero zvemabubbles ndeizvi:
Mvura yakawandisa inowedzerwa.
Kana ukakwenya rumwe rutivi rwerukoko rwepasi rusati rwaoma, zviri nyorewo kuti ruite maronda.
Nguva yekutumira: Gunyana-27-2022