1. Chii chinonyanya kushandiswa kwehydroxypropyl methylcellulose?
HPMC inoshandiswa zvakanyanya mukuvaka, machira, ekugadzira resin, ceramics, mushonga, chikafu, machira, kurima, zvizorwa, fodya uye mamwe maindasitiri. HPMC inogona kukamurwa kuita maindasitiri giredhi, chikafu giredhi uye mishonga giredhi maererano kushandiswa kwayo.
2. Kune marudzi akawanda ehydroxypropyl methylcellulose. Ndeupi musiyano uripo pakati pazvo?
HPMC inogona kukamurwa kuita instant type (brand suffix "S") uye inopisa-soluble type. Instant mhando zvigadzirwa zvinopararira nekukurumidza mumvura inotonhora uye inonyangarika mumvura. Panguva ino, mvura haina viscosity nekuti HPMC inongopararira mumvura uye haina mhinduro chaiyo. Mushure me (kukurudzira) maminetsi maviri, viscosity yemvura inowedzera zvishoma nezvishoma uye yakajeka viscous colloid inoumbwa. Zvigadzirwa zvinopisa zvinonyungudika, mumvura inotonhora, zvinogona kukurumidza kupararira mumvura inopisa uye kupera mumvura inopisa. Kana tembiricha inodonha kune imwe tembiricha (maererano nejiro tembiricha yechigadzirwa), iyo viscosity inooneka zvishoma nezvishoma kusvikira yakajeka uye viscous colloid yaumbwa.
3. Ndedzipi nzira dzekugadzirisa hydroxypropyl methylcellulose?
1. Mienzaniso yose inogona kuwedzerwa kune zvinyorwa nekusanganiswa kwakaoma;
2. Inoda kuwedzerwa zvakananga kune yakajairika tembiricha aqueous solution. Zvakanakisa kushandisa mvura inotonhora yekuparadzira mhando. Mushure mekuwedzera, inowanzosvika pakukora mukati me10-90 maminetsi (kumutsa, kumutsa, kumutsa)
3. Pamhando dzakajairika, kurunga uye uparadzire nemvura inopisa kutanga, wobva wawedzera mvura inotonhora kuti inyunguduke mushure mekukurudzira uye kutonhora.
4. Kana agglomeration kana kuputira kukaitika panguva yekunyungudika, imhaka yekuti kubvongodza hakuna kukwana kana iyo yakajairika modhi inowedzerwa zvakananga kumvura inotonhora. Panguva ino, kurumidzira nekukurumidza.
5. Kana mabhubhu akagadzirwa panguva yekuparara, anogona kusiiwa kwemaawa 2-12 (nguva yakatarwa zvinoenderana nekuenderana kwemhinduro) kana kubviswa nekubvisa vacuum, kudzvanywa, nezvimwewo, uye chiyero chakakodzera che defoaming agent inogona zvakare. kuwedzerwa.
4. Nzira yekutonga sei kunaka kwehydroxypropyl methylcellulose zviri nyore uye intuitively?
1. Kuchena. Kunyangwe kuchena kusingakwanise kutonga kuti HPMC yakanaka here kana kuti kwete, uye kuwedzera chena maajenti panguva yekugadzira kunokanganisa kunaka kwayo, zvigadzirwa zvakanaka zvakawanda zvine kuchena kwakanaka.
2. Fineness: HPMC kunaka kunowanzoita 80 mesh uye 100 mesh, pasi pe120, iyo yakatsetseka zviri nani.
3. Light transmittance: HPMC inoumba yakajeka colloid mumvura. Tarisa pane transmittance yechiedza. Iyo yakakura iyo mwenje transmittance, zviri nani iyo permeability, izvo zvinoreva kuti mune zvishoma zvisinganyunguriki zvinhu mairi. Iyo yakatwasuka reactor kazhinji yakanaka, uye yakachinjika reactor inoburitsa zvimwe. Asi hazvigone kutaurwa kuti kugadzirwa kwemhando yemaketeni akatsiga kuri nani pane iyo yemaketani akatwasuka. Pane zvinhu zvakawanda zvinosarudza kunaka kwechigadzirwa.
4. Chaiyo giravhiti: Iyo yakakura iyo chaiyo giravhiti, iyo inorema zvakanyanya nani. Iyo yakakura iyo chaiyo giravhiti, iyo yakakwirira iyo hydroxypropyl yemukati iri. Kazhinji, iyo yakakwirira iyo hydroxypropyl yemukati, zviri nani kuchengetedza mvura.
5. Yakawanda sei hydroxypropyl methylcellulose inoshandiswa muputty powder?
Huwandu hweHPMC hunoshandiswa mumashandisirwo chaiwo hunosiyana kubva kunzvimbo nenzvimbo, kazhinji kutaura, iri pakati pe4-5 kg, zvichienderana nemamiriro ekunze, tembiricha, yemuno calcium ash mhando, putty poda formula uye zvinodiwa nevatengi.
6. Chii chinonzi viscosity yehydroxypropyl methylcellulose?
Putty poda kazhinji inodhura RMB 100,000, nepo dhaka rine zvakakwirira zvinodiwa. Zvinodhura RMB 150,000 kuti zvive nyore kushandisa. Uyezve, basa rinonyanya kukosha reHPMC kuchengetedza mvura, inoteverwa nekukora. Mune putty powder, chero bedzi kuchengetwa kwemvura kwakanaka uye viscosity yakaderera (7-8), inogonawo. Zvechokwadi, iyo yakakura viscosity, zviri nani kuchengetedza mvura. Kana iyo viscosity iri pamusoro pe100,000, iyo viscosity haina mhedzisiro pakuchengetedza mvura.
7. Ndeapi makuru ehunyanzvi zviratidzo zvehydroxypropyl methylcellulose?
Hydroxypropyl content
Methyl yemukati
viscosity
Ash
yakaoma uremu kurasikirwa
8. Ndezvipi zvinhu zvakakosha zvehydroxypropyl methylcellulose?
Iyo huru yemidziyo yeHPMC: yakanatswa donje, methyl chloride, propylene oxide, zvimwe zvigadzirwa, caustic soda, uye acid toluene.
9. Iko kushandiswa uye basa guru re hydroxypropyl methylcellulose mu putty powder, ikemikari?
Mune putty powder, inotamba mabasa matatu makuru: kukora, kuchengetedza mvura uye kuvaka. Kukora kunogona kukora cellulose uye kuita basa rekumisa, kuchengetedza mhinduro yunifomu kumusoro nekudzika uye kudzivirira kudonha. Kuchengetwa kwemvura: Ita kuti putty iome zvishoma nezvishoma uye batsira grey calcium kuita pasi pekuita kwemvura. Kushanda: Cellulose ine lubricating effect, iyo inoita kuti putty powder ive nekushanda kwakanaka. HPMC haitore chikamu mune chero chemakemikari maitiro uye inongotamba basa rekutsigira.
10. Hydroxypropyl methylcellulose isiri-ionic cellulose ether, saka chii chinonzi non-ionic type?
Kazhinji kutaura, inert zvinhu hazvibatanidzi mukuita kwemakemikari.
CMC (carboxymethylcellulose) is cationic cellulose uye inoshanduka kuita tofu dregs kana yaiswa mu calcium ash.
11. Chii chinonzi tembiricha yegel yehydroxypropyl methylcellulose ine chekuita nazvo?
Iyo tembiricha yegel yeHPMC ine hukama neiyo methoxyl yemukati. Iyo yakadzikira iyo methoxyl yemukati, inowedzera tembiricha yegel.
12. Pane hukama huripo pakati peputty powder uye hydroxypropyl methylcellulose here?
Izvi zvakakosha! HPMC haina kuchengetedzeka kwemvura uye inokonzera hupfu.
13. Ndeupi musiyano mukugadzirwa kwemvura inotonhorera uye inopisa mvura yehydroxypropyl methylcellulose?
HPMC inotonhora mvura-inonyungudika mhando inokurumidza kuparadzirwa mumvura inotonhora mushure mekurapwa kwepamusoro ne glyoxal, asi haina kunyatso kunyungudika. Iyo viscosity inokwira, ndiko kuti, inonyungudika. Iyo inopisa melt type haisi pamusoro inobatwa ne glyoxal. Glyoxal yakakura muhukuru uye inopararira nekukurumidza, asi ine inononoka viscosity uye vhoriyamu diki, uye zvinopesana.
14. Chii chinonzi kunhuwa kwehydroxypropyl methylcellulose?
HPMC inogadzirwa nenzira yekunyungudutsa inogadzirwa ne toluene uye isopropyl doro sezvinonyungudutsa. Kana isina kushambidzwa zvakanaka, pachava nekunhuhwirira kwasara. (Neutralization uye kudzokorodza inzira yakakosha yekunhuhwirira)
15. Ungasarudza sei yakakodzera hydroxypropyl methylcellulose yekushandiswa kwakasiyana?
Putty poda: yakakwira yekuchengeta mvura zvinodiwa uye yakanaka yekuvaka nyore (yakakurudzirwa mhando: 7010N)
Yakajairwa simende-yakavakirwa dhaka: kuchengetwa kwemvura yakakwira, kupisa kwekushisa kwakanyanya, pakarepo viscosity (yakakurudzirwa giredhi: HPK100M)
Kuvaka adhesive application: pakarepo chigadzirwa, yakakwirira viscosity. (Inokurudzirwa mhando: HPK200MS)
Gypsum dhaka: kuchengetwa kwemvura yakakwirira, yepakati-yakaderera viscosity, pakarepo viscosity (yakakurudzirwa giredhi: HPK600M)
16. Nderipi rimwe zita rehydroxypropyl methylcellulose?
HPMC kana MHPC inozivikanwawo sehydroxypropyl methylcellulose uye hydroxypropyl methylcellulose ether.
17. Kushandiswa kwehydroxypropyl methylcellulose mu putty powder. Chii chinokonzera putty powder kuita furo?
HPMC inobata mabasa matatu makuru mu putty powder: kukora, kuchengetedza mvura uye kuvaka. Zvikonzero zvebubbles ndezvi:
1. Wedzera mvura yakawandisa.
2. Kana pasi isina kuoma, kukwenya imwe nhanho kumusoro kunokonzera mablisters nyore.
18. Ndeupi musiyano uripo pakati pehydroxypropyl methylcellulose neMC:
MC, methyl cellulose, inogadzirwa kubva kudonje rakanatswa mushure mekurapwa kwealkali, uchishandisa methane chloride seyo etherifying agent, uye nhevedzano yemaitiro kugadzira cellulose ether. Iyo yakawanda dhigirii yekutsiva ndeye 1.6-2.0, uye kunyungudika kwemadhigirii akasiyana ekutsiva kwakasiyanawo. Iyo isiri-ionic cellulose ether.
(1) Kuchengetwa kwemvura kwemethylcellulose kunoenderana nehuwandu hwayo hwekuwedzera, viscosity, particle fineness uye dissolution rate. Kazhinji, huwandu hwekuwedzera hwakakura, kunaka kudiki, viscosity yakakwira, uye mwero wekuchengetedza mvura wakakwira. Mari yekuwedzera ine simba guru pahuwandu hwekuchengetedza mvura, uye viscosity haina chokuita nehuwandu hwekuchengetedza mvura. Mwero wekunyungudika unonyanya kuenderana nedhigirii rekugadzirisa uye chidimbu chidiki chezvikamu zve cellulose. Pakati pema cellulose ethers ari pamusoro, methylcellulose uye hydroxypropylmethylcellulose vane huwandu hwekuchengetedza mvura.
(2) Methyl cellulose inogona kunyungudutswa mumvura inotonhora, asi ichasangana nekunetseka mukunyungudika mumvura inopisa. Mhinduro yayo ine aqueous yakagadzikana muhuwandu hwepH = 3-12, uye ine kuenderana kwakanaka nestarch uye akawanda masurfactants. Kana kutonhora kunosvika gel Kana kupisa kwegelation kunowedzera, gelation ichaitika.
(3) Kuchinja kwekushisa kuchakanganisa zvakanyanya chiyero chekuchengetedza mvura yemethylcellulose. Kazhinji, kukwira kwekushisa, kunowedzera kuwedzera kwehuwandu hwekuchengetedza mvura. Kana tembiricha yevhu ichipfuura madhigirii makumi mana, kuchengetwa kwemvura kwemethylcellulose kuchaderera zvakanyanya, zvichikanganisa zvakanyanya kuvakwa kwedhaka.
(4) Methylcellulose ine simba rakakura pakuvaka uye kunamatira kwedhaka. Kunamatira pano kunoreva kunamatira kunonzwika pakati pemudziyo wekushandisa wemushandi uye chigadziko chemadziro, ndiko kuti, kurwisa kweshear kwedhaka. Iko kunamatira kwakakwirira, shear resistance yedhaka yakakwirira, uye simba rinodiwa nevashandi panguva yekushandiswa rakakwirirawo, saka kushanda kwekuvaka kwedhaka kwakashata.
Nguva yekutumira: Jan-31-2024