Hydroxypropyl methyl cellulose yakakamurwa kuita marudzi akati wandei, uye ndeupi musiyano mukushandiswa kwayo?
HPMC inogona kukamurwa kuita ipapo uye inopisa-yakanyungudika mhando.Zvigadzirwa zvepakarepo zvinopararira nekukurumidza mumvura inotonhora uye zvinonyangarika mumvura.Panguva ino, mvura haina viscosity, nokuti HPMC inongopararira mumvura uye haina kunyatsopera.Mushure memaminitsi maviri (kukurudzira), viscosity yemvura inowedzera zvishoma nezvishoma, ichigadzira chena chena viscous colloid.Zvigadzirwa zvinopisa zvinonyungudika zvinogona kupararira nekukurumidza mumvura inopisa uye zvinonyangarika mumvura inopisa kana zvaungana mumvura inotonhora.Kana tembiricha inodonha kune imwe tembiricha (maererano nejeli tembiricha yechigadzirwa), iyo viscosity inooneka zvishoma nezvishoma kusvikira yakajeka viscous colloid yaumbwa.
Nzira yekutonga sei kunaka kwehydroxypropyl methyl cellulose zviri nyore uye intuitively?
Kuchena.Kunyangwe kuchena kusingakwanise kuona kana HPMC iri nyore kushandisa, uye kana maajenti ekuchena akawedzerwa mukugadzira, zvinokanganisa kunaka kwayo, zvigadzirwa zvakanaka zvakawanda zvine kuchena kwakanaka.
Fineness: kunaka kweHPMC kunowanzo 80 mesh uye 100 mesh, uye 120 mesh ishoma.Kunyanya kunaka, zviri nani.
Light transmittance: mushure mekunge HPMC yaiswa mumvura kuti iite transparent colloid, tarisa mwenje wayo.Iyo yakakura iyo mwenje transmittance, zviri nani.Zvinoreva kuti mune zvishoma zvisinganyunguriki mairi.Kufambiswa kweiyo vertical reactor kunowanzo kunaka, uye iyo yehorizontal reactor yakaipisisa.Zvisineyi, hazvireve kuti kunaka kweiyo reactor yakatwasuka kuri nani pane iyo yeaya yakatwasuka.Pane zvinhu zvakawanda zvinosarudza kunaka kwechigadzirwa.
Specific gravity: iyo yakakura iyo chaiyo giravhiti, iyo inorema iyo, zviri nani zviri nani.Kazhinji, imhaka yekuti zvirimo zvehydroxypropyl mairi zvakakwirira.Kana zvinyorwa zve hydroxypropyl zvakakwirira, kuchengetwa kwemvura kuri nani.
Specific gravity: iyo yakakura iyo chaiyo giravhiti, iyo inorema iyo, zviri nani zviri nani.Kazhinji, imhaka yekuti zvirimo zvehydroxypropyl mairi zvakakwirira.Kana zvinyorwa zve hydroxypropyl zvakakwirira, kuchengetwa kwemvura kuri nani.
ndedzipi nzira dzekumisa dzehydroxypropyl methyl cellulose?
Yese mamodheru anogona kuwedzerwa kune zvigadzirwa nenzira yakaoma yekusanganisa;
Kana ichida kuwedzerwa zvakananga kune mhinduro ine aqueous pane tembiricha yekamuri, zviri nani kushandisa mvura inotonhora yekuparadzira mhando.Kazhinji, inogona kukobvu mukati me10-90 maminetsi mushure mekuwedzera (kukurudzira)
Mienzaniso yakajairika inogona kunyungudutswa mushure mekusanganiswa uye kupararira nemvura inopisa, kuwedzera mvura inotonhora, inomutsa uye kutonhora;
Kana kukaka uye kuputira kukaitika panguva yekunyungudika, imhaka yekusakwana kusanganisa kana yakajairika mhando inowedzerwa zvakananga kumvura inotonhora.Panguva ino, inofanira kukurumidza kumutswa.
Kana mabhubhu akagadzirwa panguva yekunyungudika, anogona kubviswa nekumira kwemaawa 2-12 (nguva yakatarwa inoenderana nekuenderana kwemhinduro), vacuuming, pressurizing uye dzimwe nzira, kana kuwedzera huwandu hwakakodzera hwe defoamer.
Ndeipi basa rinoitwa nehydroxypropyl methyl cellulose mukushandiswa kweputty powder, uye kana pane chemistry?
Mune putty powder, inotamba mabasa matatu: kukora, kuchengetedza mvura uye kuvaka.Kukora, cellulose inogona kukora, kuita basa rekumiswa, chengetedza yunifomu yemushonga kumusoro nekudzika, uye kuramba kudonha.Kuchengeta mvura: ita putty poda yakaoma zvishoma nezvishoma, uye batsira lime calcium kuita pasi pekuita kwemvura.Kuvaka: cellulose ine lubricating effect, iyo inogona kuita putty powder kuve nekushanda kwakanaka.HPMC haitore chikamu mune chero chemakemikari reaction, asi inongotamba yebetsero.
Chii chinonzi tembiricha yegel yehydroxypropyl methyl cellulose ine chekuita nayo?
Iyo tembiricha yegel yeHPMC ine hukama neiyo methoxyl yemukati.Iyo yakadzikira iyo methoxyl yemukati, inowedzera tembiricha yegel.
pane hukama huripo pakati pekudonha kweputty powder uye hydroxypropyl methyl cellulose?
Zvine basa!!!HPMC ine urombo hwekuchengetedza mvura, izvo zvinozokonzera kurasikirwa kwehupfu.
Kushandiswa kwe hydroxypropyl methyl cellulose mu putty powder, chii chikonzero chezviputi mu putty powder?
HPMC inobata mabasa matatu muputty powder: kukora, kuchengetedza mvura uye kuvaka.Zvikonzero zvebubbles ndezvizvi:
Mvura yakawandisa inowedzerwa.
Kana iwe ukakwenya chimwe chitubu pazasi chisati chaoma, zvakare nyore kuita blister.
Nguva yekutumira: Sep-27-2022