Inoshandiswa zvakanyanya mukuvaka, Hydroxypropyl Methylcellulose (HPMC) ndiyo yakakosha yekuwedzera mudhaka. Inowedzera zvinhu zvakadai sekushanda, kuchengetedza mvura uye kunamatira, nokudaro kuvandudza kushanda nekushanda.
1. Kunzwisisa HPMC uye mabhenefiti ayo
1.1 Chii chinonzi HPMC?
HPMC is nonionic cellulose ether inotorwa kubva kune yakasikwa cellulose. Inowanzoshandiswa muzvigadzirwa zvekuvaka, kunyanya yakaoma-yakasanganiswa madhaka, nekuda kwekukwanisa kwayo kushandura zvinhu zvemuviri zvemusanganiswa.
1.2 Mabhenefiti eHPMC muMortar
Kuchengetedza Mvura: HPMC inovandudza kuchengetedza kwemvura, iyo inokosha kune simenti hydration, nokudaro inovandudza simba uye kuderedza shrinkage.
Kushanda: Inovandudza kushanda kwedhaka, zvichiita kuti zvive nyore kuisa nekupararira.
Adhesion: HPMC inowedzera kunamatira kwedhaka kune substrate, kuderedza njodzi yekudonha.
Anti-Sag: Inobatsira dhaka kuchengetedza chinzvimbo chayo panzvimbo yakatwasuka pasina kudonha.
Yakawedzerwa Yakavhurika Nguva: HPMC inowedzera iyo yakavhurika nguva, ichibvumira yakawanda nguva yekugadzirisa uye kupedzisa.
2. Mhando dzeHPMC nemigumisiro yavo padhaka
HPMC inowanikwa mumagiredhi akasiyana, inosiyaniswa neviscosity uye nhanho yekutsiva:
Viscosity: High viscosity HPMC inovandudza kuchengetedza kwemvura uye kushanda, asi inoita kuti kusanganisa kuve kwakaoma. Low viscosity mamakisi ane hurombo hwekuchengetedza mvura asi zviri nyore kusanganisa.
Kutsiva nhanho: Iyo dhigirii yekutsiva inokanganisa solubility uye thermal gel zvivakwa, izvo zvinozokanganisa kushanda pasi pemamiriro akasiyana ezvakatipoteredza.
3. Nhungamiro yekusanganisa HPMC poda nedhaka
3.1 Premixing kufunga
Kugarisana: Ita shuwa kuti yakasarudzwa HPMC giredhi inoenderana nezvimwe zvinowedzera uye iyo yakazara kuumbwa kwedhaka.
Chiyero: Yakajairika HPMC dosage inotangira pa0.1% kusvika 0.5% nehuremu hwemusanganiswa wakaoma. Gadzirisa zvichienderana nezvinodiwa zvekushandisa.
3.2 Kusanganisa maitiro
Dry mixing:
Sanganisa zvimisikidzo zvakaomeswa: Nyatsosanganisa hupfu hweHPMC pamwe nezvimwe zvakaoma zvedhaka (simende, jecha, mafirita) kuti uve nechokwadi chekugovera.
Mechanical mixing: Shandisa mechanical agitator kusanganisa mayunifomu. Kusanganisa nemaoko hakugone kuwana kufanana kwaunoda.
Kuwedzera Mvura:
Kuwedzera zvishoma nezvishoma: Wedzera mvura zvishoma nezvishoma uchivhenganisa kuti usapinda. Tanga kusanganisa nemvura shoma uye wobva wawedzera imwe sezvinodiwa.
Consistency Check: Tarisa kuenderana kwedhaka kuti uwane iyo inodiwa kushanda. Kuwanda kwemvura yakawedzerwa kunofanira kudzorwa kuti irege kuderedzwa, izvo zvinogona kuderedza musanganiswa.
Kusanganiswa Nguva:
Kutanga Kusanganiswa: Sanganisa zvikamu zve 3-5 maminetsi kusvikira musanganiswa wakafanana wawanikwa.
Nguva Yakamira: Rega musanganiswa ugare kwemaminitsi mashoma. Iyi nguva yekumira inobatsira zvizere kumisa iyo HPMC, ichiwedzera kushanda kwayo.
Kusanganiswa Kwekupedzisira: Sanganisa zvakare kwemaminetsi 1-2 usati washandisa.
3.3 Mazano ekushandisa
Tembiricha uye Humidity: Gadzirisa mvura yemukati uye nguva yekusanganisa zvinoenderana nemamiriro ekunze. Kupisa kwakanyanya kana hunyoro hushoma hunogona kuda imwe mvura kana kuderedzwa nguva yekuvhura.
Turusi Hutsanana: Ita shuwa kuti maturusi ekusanganisa uye midziyo yakachena kudzivirira kusvibiswa uye kusawirirana mhedzisiro.
4. Zvinoshanda Kufunga uye Troubleshooting
4.1 Kubata uye Kuchengeta
Mamiriro Ekuchengetedza: Chengetedza hupfu hweHPMC munzvimbo inotonhorera, yakaoma kudzivirira kunyura uye kunyura.
Sherufu Hupenyu: Shandisa iyo HPMC hupfu mukati mesherufu yehupenyu kuti uve nechokwadi chekushanda kwakakwana. Tarisa mazano emugadziri kune mamwe mazano ekuchengetedza.
4.2 Matambudziko Anowanikwa uye Magadzirirwo
Agglomeration: HPMC inogona kudonha kana mvura yawedzerwa nekukasira. Kuti udzivise izvi, gara uchiwedzera mvura zvishoma nezvishoma uye uchikurudzira nguva dzose.
Kusapindirana Kusanganisa: Mechanical kusanganisa inokurudzirwa kuti igove kugovera. Kusanganiswa kwemaoko kunogona kukonzera kusaenderana.
Sagging: Kana sagging ikaitika panzvimbo yakatwasuka, funga kushandisa yakakwira viscosity HPMC giredhi kana kugadzirisa maumbirwo kuti uvandudze thixotropy.
4.3 Mafungiro ezvakatipoteredza
Tembiricha Migumisiro: Kupisa kwepamusoro kunomhanyisa kumisa uye kuoma kwedhaka. Gadzirisa iyo HPMC dosi kana yemukati yemvura zvinoenderana.
Humidity Effects: Humidity yakaderera inogona kuwedzera chiyero chekubuda, ichida kugadziridzwa kune inochengetedza mvura neHPMC.
5. Mazano Epamusoro eKuwedzera Kubudirira
5.1 Kusanganiswa nezvimwe Zvinowedzera
Kuenderana Kuyedzwa: Kana uchisanganisa HPMC nezvimwe zvinowedzera senge yakakwira-renji mvura inoderedza, retarders, kana accelerator, ita kuyedza kuenderana.
Sequential Kusanganisa: Wedzera HPMC uye zvimwe zvinowedzera mune yakatarwa kuti udzivise kupindirana kunogona kukanganisa kuita.
5.2 Optimize Dosage
Pilot: Ita bvunzo dzemutyairi kuona iyo yakakwana HPMC dosage yemusanganiswa wedhaka.
Gadzirisa: Ita zvigadziriso zvinoenderana nemhinduro dzekuita kubva kumunda maapplication.
5.3 Kuvandudza Zvinhu Zvakananga
Zvekushanda: Funga kusanganisa HPMC nechidzikisiso chemvura kuti uwedzere kushanda pasina kukanganisa simba.
Pakuchengeta mvura: Kana kuchengetedzwa kwemvura kwakawedzerwa kuchidikanwa munzvimbo dzinopisa, shandisa yakakwira viscosity giredhi reHPMC.
Kunyatsosanganisa HPMC poda mudhaka kunogona kuvandudza zvakanyanya dhaka nekusimudzira kushanda, kuchengetedza mvura, kunamatira, uye kusaga kuramba. Kunzwisisa zvivakwa zveHPMC uye kutevedzera nzira dzekusanganisa kwakakosha kukwenenzvera kuita kwedhaka mumashandisirwo ekuvaka. Nekuteerera kurudzi rweHPMC inoshandiswa, premixing kufunga, uye matipi anoshanda ekushandisa, unogona kuwana yemhando yepamusoro, inoshanda dhaka musanganiswa unogadzirirwa kune zvaunoda chaizvo.
Nguva yekutumira: Jun-25-2024