Ongororo iyi yakazara inoongorora basa rakawanda rehydroxypropyl methylcellulose (HPMC) mukusimudzira zvivakwa zvekubatanidza uye kupurasita madhaka. HPMC inotorwa selulosi iyo yakawana kutariswa kwakapararira muindasitiri yekuvaka nekuda kweiyo yakasarudzika zvivakwa zvakaita sekuchengetedza mvura, kukora, uye kuvandudzwa kushanda.
suma:
1.1 Background:
Indasitiri yekuvaka inoenderera mberi nekutsvaga zvigadziriso zvitsva zvekuvandudza kushanda kwezvinhu zvekuvaka. HPMC, inotorwa kubva ku cellulose, yakabuda sechinhu chinovimbisa chekuwedzera kuvandudza zvivakwa zvekubatanidza uye kupura dhaka. Ichi chikamu chinopa mucherechedzo wezvinetso zvinosangana neakajairika madhaka uye chinopa mukana weHPMC kugadzirisa matambudziko aya.
1.2 Zvinangwa:
Chinangwa chikuru chekuongorora uku ndechekuongorora kemikari yeHPMC, kudzidza mabatiro ayo nezvikamu zvedhaka, uye kuongorora maitiro ayo pane zvakasiyana siyana zvekubatanidza uye kupura dhaka. Chidzidzo ichi zvakare chine chinangwa chekuongorora mashandisirwo anoshanda uye matambudziko ekubatanidza HPMC mukugadzira dhaka.
Kemikari kuumbwa uye zvivakwa zveHPMC:
2.1 Chimiro cheMolecular:
Ichi chikamu chinoongorora chimiro chemolecular yeHPMC, ichitarisa pane akakosha anoshanda mapoka anotarisisa ayo akasiyana zvimiro. Kunzwisisa kuumbwa kwemakemikari kwakakosha kufanotaura kuti HPMC ichabatana sei nemidziyo yedhaka.
2.2 Rheological properties:
HPMC ine zvakakosha rheological properties, iyo inokanganisa kushanda uye kuwirirana kwedhaka. Ongororo yakadzama yezvivakwa izvi inogona kupa nzwisiso yebasa reHPMC mukuumbwa kwedhaka.
Kudyidzana kweHPMC nedhaka zvikamu:
3.1 Cementitious zvinhu:
Kudyidzana pakati peHPMC necementitious zvinhu kwakakosha pakuona kusimba kwechisungo uye kubatana kwedhaka. Ichi chikamu chinotarisa mumagadzirirwo ari shure kwekubatana uku uye kukanganisa kwayo pakushanda kwese kwedhaka.
3.2 Aggregates uye mafirita:
HPMC zvakare inopindirana neaggregates uye mafirita, inokanganisa ma mechanic zvimiro zvedhaka. Ongororo iyi inoongorora mhedzisiro yeHPMC pakugoverwa kwezvikamu izvi uye mupiro wayo kune simba redhaka.
Mhedzisiro pakuita kwedhaka:
4.1 Kubatana uye kubatana:
Iko kunamatira uye kubatana kwekubatana uye kupurasita madhaka kwakakosha pakuvaka kwenguva refu uye yakavimbika. Ichi chikamu chinoongorora maitiro eHPMC pane izvi zvivakwa uye inokurukura nzira dzinobatsira pakuvandudza kunamatira.
4.2 Kuvaka:
Kushanda ndicho chinhu chakakosha pakushandisa dhaka. Mhedzisiro yeHPMC pakushanda kwematokari inoongororwa, kusanganisira maitiro ayo pakureruka kwekushandisa uye kupedzisa.
4.3 Mechanical simba:
Basa reHPMC mukuvandudza simba remakanika redhaka rakaferefetwa tichifunga nezvekuita kwayo pakumanikidza, kusimba uye kushanduka kwesimba. Ongororo iyi zvakare inokurukura iyo yakakwana dosage yeHPMC kuti uwane iyo yaunoda kusimba.
Durability uye Resistance:
5.1 Kugara kwenguva refu:
Kusimba kwedhaka kwakakosha kutsungirira mamiriro ezvakatipoteredza uye kuchengetedza kutendeseka kwechimiro kwenguva refu. Ichi chikamu chinoongorora kuti HPMC inogona sei kuvandudza kusimba kwekubatanidza uye kupurasita madhaka.
5.2 Kupokana kune zvekunze zvinhu:
HPMC inokurukurwa kuvandudza kugona kwedhaka kuramba zvinhu zvakaita sekupinda kwemvura, kuratidzwa kwemakemikari, uye shanduko yekushisa. Ongororo iyi inoongorora maitiro ayo HPMC inoshanda inodzivirira mumiriri.
Inoshanda Yekushandisa uye Gadzira Gaidhi:
6.1 Kuita kunoshanda:
Iwo anoshanda mashandisirwo eHPMC mukubatanidza uye kupurasita madhaka anoongororwa, achiratidzira akabudirira nyaya dzezvidzidzo uye kuratidza kugona kwekubatanidza HPMC mumapurojekiti ekuvaka.
6.2 Kugadzira nhungamiro:
Nhungamiro yekugadzira dhaka neHPMC inopihwa, tichifunga nezvezvinhu zvakaita seyero, kuenderana nezvimwe zvinowedzera, uye maitiro ekugadzira. Mazano anoshanda ekuwana mhedzisiro yakanaka anokurukurwa.
Zvinetso uye tarisiro yeramangwana:
7.1 Zvinetso:
Ichi chikamu chinokurukura matambudziko ane chekuita nekushandiswa kweHPMC mumatope, kusanganisira zvisingakwanisi uye zvisingakwanisi. Nzira dzekukunda nyaya idzi dzinokurukura matambudziko.
7.2 Ramangwana Maonero:
Ongororo iyi inopedzisa nekuongorora zvingangoitika mune ramangwana mukushandiswa kweHPMC mukubatanidza nekupurasita madhaka. Nzvimbo dzekuwedzera kutsvagisa uye hutsva dzinoonekwa kufambisa kufambiswa kwezvinhu zvekuvaka.
Nguva yekutumira: Jan-11-2024