1. Chii chinonyanya kushandiswa pakushandisahydroxypropyl methylcellulose (HPMC)?
Hydroxypropyl methylcellulose inoshandiswa zvakanyanya muzvinhu zvekuvaka, machira ekuputira, maresini ekugadzira, zviumbwa zvedoro, mishonga, chikafu, machira, kurima, zvizoro, fodya nedzimwe nzvimbo. Hydroxypropyl methylcellulose inogona kukamurwa kuita giredhi rekuvaka, giredhi rezvekudya uye giredhi remishonga zvichienderana nekushandiswa kwayo. Parizvino, zvigadzirwa zvakawanda zvemumba ndezve giredhi rekuvaka. Mu giredhi rekuvaka, putty powder inoshandiswa zvakanyanya, inenge 90% inoshandiswa putty powder, uye yasara inoshandiswa simende mortar neglue.
2. Kune mhando dzakasiyana dzehydroxypropyl methylcellulose (HPMC), uye ndedzipi musiyano uripo pakushandiswa kwadzo?
HPMC inogona kukamurwa kuita mhando yekukurumidza uye mhando yekupisa. Zvigadzirwa zvemhando yekukurumidza zvinopararira nekukurumidza kana zvikasangana nemvura inotonhora zvonyangarika mumvura. Panguva ino, mvura haina viscosity nekuti HPMC inongopararira mumvura isina kunyungudika chaiko. Mushure memaminitsi angangoita maviri, viscosity yemvura inowedzera zvishoma nezvishoma, zvichiita colloid yakajeka ine viscous. Zvigadzirwa zvinonyungudika, kana zvikasangana nemvura inotonhora, zvinogona kupararira nekukurumidza mumvura inopisa zvonyangarika mumvura inopisa. Kana tembiricha yadzikira kusvika kune imwe tembiricha, viscosity inoonekwa zvishoma nezvishoma kusvika yagadzira colloid yakajeka ine viscous. Mhando yekupisa inonyungudika inogona kushandiswa chete muputty powder nemortar. Mu liquid glue nependi, pachava neboka rezviitiko uye hazvigone kushandiswa. Instant type ine mashandisirwo akasiyana-siyana. Inogona kushandiswa muputty powder nemortar, pamwe neliquid glue nependi, pasina chero zvinopesana.
3. Ndedzipi nzira dzekunyungudutsa hydroxypropyl methylcellulose (HPMC)?
Nzira yekunyungudutsa mvura inopisa: Sezvo HPMC isinganyungudike mumvura inopisa, HPMC inogona kunyungudika zvakaenzana mumvura inopisa pakutanga, yobva yanyungudika nekukurumidza kana yatonhodzwa. Nzira mbiri dzakajairika dzinotsanangurwa seizvi:
1) Isa mvura inopisa inodiwa mumudziyo woipisa kusvika pa70°C. Hydroxypropyl methylcellulose yakawedzerwa zvishoma nezvishoma nekukurunga zvishoma nezvishoma, pakutanga HPMC yaiyerera pamusoro pemvura, uye zvishoma nezvishoma yakaumba slurry, iyo yaitonhodzwa nekukurunga.
2) Wedzera 1/3 kana 2/3 yehuwandu hwemvura hunodiwa mumudziyo, woipisa kusvika 70 ° C, zvichienderana nenzira ye1), paradzira HPMC kuti ugadzire slurry yemvura inopisa; wobva wawedzera huwandu hwemvura inotonhora yasara muslurry yemvura inopisa, musanganiswa wacho watonhodzwa mushure mekukurunga.
Nzira yekusanganisa upfu: sanganisa upfu hweHPMC nezvimwe zvinhu zvakawanda zvine upfu, sanganisa zvakanaka nemuchina wekusanganisa, wobva wawedzera mvura kuti inyungudike, ipapo HPMC inogona kunyungudika panguva ino pasina kuungana, nekuti pane HPMC shoma mukona imwe neimwe diki Powder, inonyungudika pakarepo kana yasangana nemvura. ——Vagadziri vePutty powder nemortar vari kushandisa nzira iyi. [Hydroxypropyl methylcellulose (HPMC) inoshandiswa sechinhu chinosimbisa uye chinochengetedza mvura mumortar yeputty powder.]
4. Ungatonga sei mhando yehydroxypropyl methylcellulose (HPMC) zviri nyore uye nenzira isinganzwisisike?
(1) Kuchena: Kunyangwe kuchena kusingakwanise kuona kana HPMC iri nyore kushandisa, uye kana mishonga yekuchenesa ikawedzerwa panguva yekugadzira, inokanganisa kunaka kwayo. Zvisinei, zvigadzirwa zvakawanda zvakanaka zvine kuchena kwakanaka.
(2) Kupfava: Kupfava kweHPMC kunowanzova nemambure makumi masere uye mambure zana, mambure zana nemakumi maviri mashoma, uye akawanda maHPMC anogadzirwa muHebei ane mambure makumi masere. Kupfava kwacho, kazhinji, ndiko kuri nani.
(3) Kutumira: Isa hydroxypropyl methylcellulose (HPMC) mumvura kuti igadzire colloid yakajeka, uye tarisa kutumirwa kwayo. Kutumira kwacho kwakakwira, zviri nani, zvichiratidza kuti hapana chinhu chinonyunguduka mairi. Kupinda kwe vertical reactors kazhinji kwakanaka, uye kwe horizontal reactors kwakaipa, asi hazvirevi kuti mhando ye vertical reactors iri nani pane ye horizontal reactors, uye mhando yechigadzirwa inotsanangurwa nezvinhu zvakawanda.
(4) Simba remagetsi rakasiyana-siyana: Simba remagetsi rakasiyana-siyana rakakura, uye simba remagetsi rakasiyana-siyana rinoremawo. Simba remagetsi rakasiyana-siyana rakakura, kazhinji nekuti huwandu hwehydroxypropyl group hurimo hwakawanda, uye huwandu hwehydroxypropyl group hwakasiyana-siyana, kuchengetedza mvura kuri nani.
5. Huwandu hwehydroxypropyl methylcellulose (HPMC) muputty powder hupi?
Huwandu hweHPMC hunoshandiswa mukushanda hunoenderana nemamiriro ekunze, tembiricha, mhando yecalcium yemuno, fomura yeputty powder uye "mhando inodiwa nevatengi". Kazhinji, pakati pe4 kg ne5 kg. Semuenzaniso: huwandu hwakawanda hweputty powder muBeijing i5 kg; huwandu hwakawanda hweputty powder muGuizhou i5 kg muzhizha uye 4.5 kg muchando; huwandu hweputty powder muYunnan hudiki, kazhinji 3 kg kusvika 4 kg, nezvimwewo.
6. Chii chinonzi viscosity yakakodzera yehydroxypropyl methylcellulose (HPMC)?
Upfu hweputty hunowanzo kwanira yuan 100,000, uye zvinodiwa zvemortar zvakakwira, uye yuan 150,000 zvinodiwa kuti zvive nyore kushandisa. Uyezve, basa guru reHPMC kuchengetedza mvura, richiteverwa nekukora. Muupfu hweputty, chero bedzi kuchengetedza mvura kwakanaka uye viscosity yakaderera (70,000-80,000), zvinogonekawo. Ehe, viscosity yakakwira, kuchengetedza mvura kuri nani. Kana viscosity ikadarika 100,000, viscosity ichakanganisa kuchengetedza mvura. Hazvichanyanyi kukosha.
7. Ndezvipi zviratidzo zvikuru zve hydroxypropyl methylcellulose (HPMC)?
Vazhinji vashandisi vane hanya nezvehuwandu hwehydroxypropyl uye kusviba, izvi zvinoratidza zviratidzo zviviri. Avo vane huwandu hwakawanda hwehydroxypropyl vanowanzo chengeta mvura zviri nani. Iyo ine kusviba kwakanyanya inochengetedza mvura zviri nani, zvishoma (kwete zvachose), uye iyo ine kusviba kwakanyanya inoshandiswa zviri nani mumota yesimende.
8. Ndezvipi zvinhu zvikuru zvekushandisahydroxypropyl methylcellulose (HPMC)?
Zvinhu zvikuru zve hydroxypropyl methylcellulose (HPMC): donje rakanatswa, methyl chloride, propylene oxide, nezvimwe zvinhu zvisina kugadzirwa, caustic soda, acid, toluene, isopropanol, nezvimwewo.
9. Ndeipi basa guru rekushandisa HPMC mupudhi yeputty, uye inoitika here nemakemikari?
Muupfu hweputty, HPMC inoita mabasa matatu ekuwedzera kukora, kuchengetedza mvura uye kuvaka. Kukora: Cellulose inogona kukora kuti irambe yakakora uye ichichengetedza mhinduro yakafanana kumusoro nekudzika, uye ichidzivirira kudonha. Kuchengetwa kwemvura: kuita kuti upfu hweputty huome zvishoma nezvishoma, uye kubatsira ash calcium kuti iite chiito pasi pesimba remvura. Kuvaka: Cellulose ine mafuta ekuzora, izvo zvinogona kuita kuti upfu hweputty huve nekuvaka kwakanaka. HPMC haibatanidzi mune chero maitiro emakemikari, asi inongoita basa rekubatsira chete. Kuwedzera mvura kuhupfu hweputty uye kuiisa pamadziro inyaya yemakemikari, nekuti zvinhu zvitsva zvinoumbwa. Kana ukabvisa upfu hweputty pamadziro kubva pamadziro, wohukuya kuita upfu, wohushandisa zvakare, hazvizoshande nekuti zvinhu zvitsva (calcium carbonate) zvaumbwawo.) Zvinhu zvikuru zviri muupfu hwecalcium yemadota ndeizvi: musanganiswa weCa (OH)2, Ca O uye huwandu hushoma hweCaCO3, CaO+H2O=Ca (OH)2—Ca(OH)2+CO2=CaCO3↓+H2O Kalsiamu yemadota iri mumvura nemhepo Pasi pekushanda kweCO2, calcium carbonate inogadzirwa, nepo HPMC ichingochengeta mvura chete, ichibatsira kuita zviri nani kwecalcium yemadota, uye haibatanidzwi mune chero chiito pachayo.
10. HPMC i-non-ionic cellulose ether, saka chii chinonzi non-ionic?
Mukutaura kwevanhuwo zvavo, ma non-ion zvinhu zvisingaite ioni mumvura. Ionization zvinoreva maitiro apo electrolyte inosanganiswa kuita ma ioni ane chaji anogona kufamba zvakasununguka mune chimwe chinhu chinonyungudutsa (senge mvura, alcohol). Semuenzaniso, sodium chloride (NaCl), munyu watinodya zuva nezuva, unonyunguduka mumvura uye unoite ioni kuti igadzire ma sodium ions (Na+) ane chaji yakanaka uye ma chloride ions (Cl) ane chaji yakaipa. Kureva kuti, kanaHPMCKana yaiswa mumvura, haizopatsanurwi kuita maion ane chaji, asi inovapo muchimiro chemamorekuru.
Nguva yekutumira: Kubvumbi-28-2024