1. Chinangwa chikuru cheHPMC ndechei?
Chigadzirwa ichi chinoshandiswa sechinhu chinosimbisa, chinoparadzira, chinosunga, chinosimbisa, chinodzivisa mafuta, chinozadza, chinosimbisa uye chinosimbisa muindasitiri yemachira. Chinoshandiswawo zvakanyanya mumaindasitiri ekugadzira resin, petrochemical, ceramic, bepa, dehwe, mishonga, chikafu uye zvizoro.
2. Basa rei?HPMCmuupfu hweputty yemukati memadziro?
HPMC ine mabasa matatu: upfu hweputty hwemadziro emukati, kukora, kuvharira mvura uye kuvaka. Kuwanda: Methyl cellulose inogona kuunganidzwa nemhinduro inoyangarara kana yemvura kuti irambe ichishanda zvakafanana uye ichiita mabasa akafanana uye kudzivirira kuyerera nekurembera. Mvura inokiya: Upfu hwemadziro emukati hunooma zvishoma nezvishoma, uye lime calcium yakawedzerwa inoratidzwa mukushandiswa kwemvura. Kuvaka kweinjiniya: Methyl cellulose ine basa rekunyorovesa, izvo zvinogona kuita kuti upfu hweputty hwemadziro emukati huve nechimiro chakanaka cheinjiniya. HPMC haibatanidzi mukuchinja kwemakemikari ese, asi inongobatanidzwa mukuzadzazve. Upfu hweputty hwemadziro emukati, pamadziro, ishanduko yemakemikari, nekuti pane shanduko itsva yemakemikari, upfu hweputty hwemadziro emukati hunobviswa pamadziro, hunogayiwa, uye hunoshandiswazve, Nekuti chinhu chitsva chemakemikari (calcium bicarbonate) chagadzirwa. Zvikamu zvikuru zveupfu hwekarusiyamu yegrey ndeizvi: musanganiswa weCa(OH)2, CaO uye huwandu hushoma hweCaCO3, CaO+H2O=Ca(OH)2 —Ca(OH)2+CO2=CaCO3↓+H2O calcium yegrey mumvura nemhepo Pasi pekushanda kweCO2, calcium carbonate inoumbwa, nepo HPMC ichingochengeta mvura chete uye ichibatsira kuita zviri nani kwekarusiyamu yegrey, uye haibatanidzwi mune chero chiito pachayo.
3. Maitiro ekuongorora mhando yeHPMCzviri nyore uye nenzira yekunzwisisa?
(1) Kuchena: Kunyange zvazvo kuchena kusingakwanise kuona kana HPMC iri nyore kushandisa, uye kana chinhu chinopenya chikawedzerwa mukugadzirwa, chinokanganisa kunaka kwayo. Zvisinei, zvigadzirwa zvakanaka zvine kuchena kwakanaka. (2) Kuchena: Kuchena kweHPMC kunowanzova 80 mesh uye 100 mesh, 120 mesh ishoma, uye HPMC yakawanda inogadzirwa muHebei i80 mesh. Kuchena kwakanyanya, ndiko kuri nani. (3) Kutumira: Isa hydroxypropyl methylcellulose (HPMC) mumvura kuti igadzire colloid yakajeka, uye tarisa kutumirwa kwayo. Kutumira kwakakura, ndiko kuri nani, zvichiratidza kuti mukati mune zvinhu zvisinganyunguduki zvishoma. . Kupinda kwereactor yakatwasuka kunowanzova kwakanaka, uye reactor yakatwasuka yakashata, asi hazvirevi kuti kunaka kwereactor yakatwasuka kuri nani pane kwereactor yakatwasuka. Hunhu hwechigadzirwa huchiri kusarudzwa nezvinhu zvakawanda. (4) Kuenzana: Kukura kwechikamu, kurema ndiko kuri nani. Kunyatsojeka kwakanyanya kunowanzo kukonzerwa nehuwandu hwakawanda hwehydroxypropyl mairi, uye huwandu hwakawanda hwehydroxypropyl, kuchengetedza mvura kuri nani.
4. Chii chinofanira kutariswa pakushandisa viscosity uye tembiricha yeHPMC?
Kupenya kweHPMC kunoenderana nekupisa, kureva kuti, kupenya kunowedzera sezvo kupisa kuchidzikira. Tinowanzo taura kuti kupenya kwechigadzirwa kunoreva mhedzisiro yekuyedza mhinduro yacho yemvura ye2% pakupisa kwe20 degrees Celsius. Mukushandiswa kwakakosha, munzvimbo dzine musiyano mukuru wekupisa pakati pezhizha nechando, zvinofanira kucherechedzwa kuti zvinokurudzirwa kushandisa kupenya kushoma munguva yechando, izvo zvinonyanya kubatsira pakuvaka. Zvikasadaro, kana tembiricha iri shoma, kupenya kweselulosi kuchawedzera, uye ruoko ruchanzwa kurema kana rwakweshwa.
5. Ndedzipi nzira dzekunyungudutsa dzeHPMC?
Nzira yekunyungudutsa mvura inopisa: Sezvo HPMC isinganyunguduke mumvura inopisa, HPMC inogona kunyungudutswa zvakaenzana mumvura inopisa pakutanga, uye yobva yanyunguduka nekukurumidza kana yatonhodzwa. Nzira mbiri dzakajairika dzinotsanangurwa seizvi: 1). Huwandu hwemvura inopisa uye yodziiswa kusvika pa70°C. Wedzera zvishoma nezvishoma hydroxypropyl methylcellulose nekukurunga zvishoma nezvishoma, tanga HPMC ichiyangarara pamusoro pemvura, wobva wagadzira slurry zvishoma nezvishoma, wotonhodza slurry nekukurunga. 2). Wedzera 1/3 kana 2/3 yehuwandu hunodiwa hwemvura mumudziyo woipisa kusvika pa70°C. Zvichienderana nenzira ye1), paradzira HPMC kugadzira slurry yemvura inopisa; wobva wawedzera huwandu hwasara hwemvura inotonhora mumvura inopisa. Muslurry, tonhodza musanganiswa mushure mekukurunga. Nzira yekusanganisa upfu: sanganisa upfu hweHPMC nezvimwe zvinhu zvakawanda zvine upfu, sanganisa zvakanaka neblender, wobva wawedzera mvura kuti inyunguduke, ipapo HPMC inogona kunyungudutswa panguva ino isina kuungana uye kuungana, nekuti kona imwe neimwe diki, pane HPMC shoma chete. Upfu huchanyunguduka pakarepo kana hwasangana nemvura. -Vagadziri vePutty powder nemortar vanoshandisa nzira iyi. [Hydroxypropyl methyl cellulose (HPMC) inoshandiswa sechinhu chinosimbisa uye chinochengetedza mvura mumortar yeputty powder.]
6. Chipimo cheHPMC chinowedzerwa muputty powder chii?
Huwandu hweHPMCZvinoshandiswa pakushandisa chaizvo zvinosiyana zvichienderana nemamiriro ekunze, tembiricha, mhando yecalcium yemuno, fomura yeputty powder, uye "mhando inodiwa nevatengi". Kazhinji, iri pakati pe4 kg ne5 kg. Semuenzaniso, putty powder yekushongedza muBeijing inonyanya 5 kg; putty powder muGuizhou inonyanya 5 kg muzhizha uye 4.5 kg muchando; huwandu hwekuwedzera hweYunnan hushoma, kazhinji 3 kg-4 kg nezvimwewo.
Nguva yekutumira: Kubvumbi-26-2024