Hydroxypropyl Methylcellulose HPMC yakajairika ruzivo

1. Chinangwa chikuru cheHPMC ndechei?

Ichi chigadzirwa chinoshandiswa seyakakora, dispersant, binder, excipient, mafuta-resistant coating, filler, emulsifier uye stabilizer muindasitiri yemachira.Inoshandiswawo zvakanyanya mukugadzira resin, petrochemical, ceramic, bepa, dehwe, mushonga, chikafu uye cosmetics maindasitiri.

2. Ndeipi basa reHPMC mukati memadziro emadziro putty powder?

HPMC ine mabasa matatu: putty poda yemukati madziro, thickening, mvura-kukiya uye kuvaka.Concentration: Methyl cellulose inogona kuiswa mukati nekuyangarara kana aqueous mhinduro kuchengetedza yunifomu uye inopindirana mabasa uye kudzivirira kuyerera nekurembera.Kuvharira mvura: Hupfu hwemukati hwemadziro hunooma zvishoma nezvishoma, uye yakawedzerwa lime calcium inoratidzwa mukushandiswa kwemvura.Kuvakwa kweinjiniya: Methyl cellulose ine basa rekunyorova, iro rinogona kuita kuti mukati memadziro putty poda ive yakanaka engineering chimiro.HPMC haitore chikamu mukushandurwa kwemakemikari ese, asi inongotora chikamu mukuzadzikiswa.Inner wall putty powder, pamadziro, ikemikari shanduko, nokuti kune kushanduka kwemakemikari matsva, mukati memadziro putty powder inobviswa kubva pamadziro, yakagayiwa, uye inoshandiswa zvakare , Nokuti itsva kemikari chinhu (calcium bicarbonate) yakagadzirwa. .Zvikuru zvinoumba grey calcium powder ndezvi: musanganiswa weCa(OH)2, CaO uye shoma shoma yeCaCO3, CaO+H2O=Ca(OH)2 —Ca(OH)2+CO2=CaCO3↓+H2O grey calcium mumvura nemhepo Pasi pekuita kwe CO2, calcium carbonate inoumbwa, nepo HPMC inongochengeta mvura uye inobatsira kuita zviri nani kwegrey calcium, uye haibatanidzi mune chero maitiro pachayo.

3. Nzira yekutonga sei kunaka kweHPMC zviri nyore uye intuitively?

(1) Kuchena: Kunyangwe kuchena kusingakwanise kuona kana HPMC iri nyore kushandisa, uye kana inopenya yakawedzerwa mukuita kwekugadzira, ichakanganisa kunaka kwayo.Zvisinei, zvigadzirwa zvakanaka zvine kuchena kwakanaka.(2) Fineness: Kunaka kweHPMC kunowanzoita 80 mesh uye 100 mesh, 120 mesh ishoma, uye yakawanda HPMC inogadzirwa muHebei 80 mesh.Iko kunaka kwehunyoro, zviri nani mune zvese.(3) Transmittance: Isa hydroxypropyl methylcellulose (HPMC) mumvura kuti iite yakajeka colloid, uye tarisa kutapurirana kwayo.Iyo yakakura iyo transmittance, zviri nani, zvichiratidza kuti kune mashoma insolubles mukati..Kupinda kwereactor yakatwasuka kazhinji kwakanaka, uye horizontal reactor yakashata, asi hazvireve kuti kunaka kwereactor yakatwasuka kuri nani pane iyo yereactor yakachinjika.Hunhu hwechigadzirwa huchiri kutsanangurwa nezvinhu zvakawanda.(4) Kuenzana: Kukura kwechikamu, kurema ndiko kuri nani.Iyo yakanyanya kujeka inowanzoitika nekuda kweiyo yakakwira hydroxypropyl zvirimo, uye iyo yakakwirira iyo hydroxypropyl yemukati, zviri nani kuchengetedza mvura.

4. Chii chinofanira kutariswa kana uchishandisa viscosity uye tembiricha yeHPMC?

Iyo viscosity yeHPMC inopindirana nekushisa, kureva kuti, viscosity inowedzera sezvo tembiricha inoderera.Isu tinowanzo taura kuti viscosity yechigadzirwa inoreva mhedzisiro yekuyedzwa kwayo 2% aqueous solution patembiricha ye20 degrees Celsius.Mumashandisirwo anoshanda, munzvimbo dzine mutsauko mukuru wekushisa pakati pezhizha nechando, zvinofanirwa kucherechedzwa kuti zvinokurudzirwa kushandisa yakaderera viscosity munguva yechando, iyo inobatsira pakuvaka.Zvikasadaro, kana tembiricha yadzikira, viscosity ye cellulose inowedzera, uye ruoko ruchanzwa kuremerwa kana rukarwa.

5. Ndedzipi nzira dzekuparadza dzeHPMC?

Nzira yekunyungudika kwemvura inopisa: Sezvo HPMC isina kunyungudika mumvura inopisa, HPMC inogona kuparadzirwa zvakafanana mumvura inopisa padanho rekutanga, uye yobva yanyungudika nekukurumidza kana yatonhodzwa.Nzira mbiri dzakajairika dzinotsanangurwa seizvi: 1).Huwandu hwemvura inopisa uye inopisa kusvika ku70 ° C.Zvishoma nezvishoma wedzera hydroxypropyl methylcellulose nekukasira kunonoka, tanga HPMC ichiyangarara pamusoro pemvura, uye ipapo zvishoma nezvishoma gadzira slurry, uye kutonhorera slurry nekukurudzira.2).Isa 1/3 kana 2/3 yehuwandu hunodiwa hwemvura mumudziyo wopisa kusvika 70°C.Maererano nenzira ye1), paradzira HPMC kugadzirira slurry yemvura inopisa;wobva wawedzera huwandu hwakasara hwemvura inotonhora kumvura inopisa Mu slurry, tonhodza musanganiswa mushure mokukurudzira.Powder kusanganisa nzira: sanganisa HPMC poda nehuwandu hukuru hwezvimwe zvinhu zvehupfu, nyatso sanganisa ne blender, wobva wawedzera mvura kuti inyunguduke, ipapo HPMC inogona kunyungudika panguva ino pasina kudhumhana uye kusanganisa, nekuti imwe neimwe kona diki, pane chete. zvishoma zvishoma zveHPMC Poda ichanyunguduka pakarepo painosangana nemvura.-Putty poda uye vanogadzira dhaka vanoshandisa nzira iyi.[Hydroxypropyl methyl cellulose (HPMC) inoshandiswa sechinhu chakakora uye chinochengeta mvura muputty poda dhaka.]

6. Chii chinonzichipimo chemushongayeHPMC yakawedzerwa muputty powder?

Huwandu hweHPMC hunoshandiswa mumashandisirwo chaiwo hunosiyana zvichienderana nemamiriro ekunze, tembiricha, yemunharaunda ash calcium quality, formula yeputty powder, uye "mhando inodiwa nevatengi".Kazhinji kutaura, iri pakati pe4 kg ne5 kg.Semuenzaniso, iyo putty poda mukushongedza'> Beijing inowanzoita 5 kg;iyo putty powder muGuizhou inowanzoita 5 kg muzhizha uye 4.5 kg muchando;Yunnan yekuwedzera huwandu idiki, kazhinji 3 kg-4 kg zvichingodaro.