Huwandu hweHPMC hwekusviba kwakajairika mukushandiswa kwekuvaka
1 Nhanganyaya
Hydroxypropyl Methylcellulose (HPMC) chinhu chakakosha chekuvaka uye chinoshandiswa zvakanyanya muzvigadzirwa zvakasiyana-siyana muindasitiri yezvinhu zvekuvaka, zvakaita sedry-mix mortar, putty powder, tile adhesive, nezvimwewo. HPMC ine mabasa akawanda akadai sekukora, kuchengetedza mvura, uye kuvandudzwa kwekushanda kwekuvaka. Kushanda kwayo kunoenderana zvakanyanya nekusimba kwayo. Chinyorwa chino chichaongorora zvakadzama huwandu hwesimba reHPMC mumashandisirwo akasiyana ekuvaka uye kukanganisa kwaro pakushanda kwekuvaka.
2. Hunhu hweHPMC
HPMC imhando ye cellulose ether isinganyunguduke mumvura inowanikwa nekushandiswa kwemakemikari e cellulose yechisikigo. Ine zvinhu zvinotevera zvinokosha:
Kukora: HPMC inogona kuwedzera kunaka kwezvinhu zvekuvaka uye kuita kuti zvishande zvakanaka.
Kuchengetwa kwemvura: Zvinogona kuderedza kubuda kwemvura uye kuvandudza mashandiro emvura nesimende negypsum.
Kunyorova: Zvinoita kuti chinhu chive chakapfava panguva yekuvaka uye zvive nyore kuisa.
Hunhu hwekugadzira firimu: Firimu rakaumbwa rine kusimba kwakanaka uye rinochinjika uye rinogona kuvandudza hunhu hwepamusoro hwechinhu chacho.
3. Kushandiswa kweHPMC muzvinhu zvekuvaka
Kunamira kweTile: Basa guru reHPMC mukunamatira kweTile nderekuvandudza simba rekubatanidza uye nguva yekuvhura. Huremu hwekunamira hunowanzova pakati pe20,000 ne60,000 mPa·s kuti pave nehunhu hwakanaka hwekubatanidza uye nguva yekuvhura. Kunamira kwakanyanya kweHPMC kunobatsira kuwedzera simba rekubatanidza kwetinamira yeTile uye kuderedza kutsvedza.
Upfu hweputty: Pakati peupfu hweputty, HPMC inonyanya kuita basa rekuchengetedza mvura, kunyorovesa uye kuvandudza kushanda. Hupfu hweputty hunowanzova pakati pe40,000 ne100,000 mPa·s. Hupfu hwakanyanya hunobatsira kuchengetedza hunyoro muupfu hweputty, zvichivandudza nguva yekushanda kwayo uye kutsetseka kwepamusoro.
Dry mix mortar: HPMC inoshandiswa mu dry mix mortar kuti iwedzere kunamira uye kuchengetedza mvura. Kuwanda kwe viscosity kuri pakati pe15,000 ne75,000 mPa·s. Mumamiriro akasiyana ekushandisa, kusarudza HPMC ine viscosity yakakodzera kunogona kugadzirisa mashandiro e bonding uye kuchengetedza mvura mumortar.
Mota inozvienzanisa: Kuti mota inozvienzanisa ive nekuyerera kwakanaka uye mhedzisiro yekuzvienzanisa, viscosity yeHPMC inowanzo kuve pakati pe20,000 ne60,000 mPa·s. Iyi viscosity range inoita kuti mota ive nekuyerera kwakakwana pasina kukanganisa simba rayo mushure mekuoma.
Kuputira kusingapindi mvura: Muzviputira zvisingapindi mvura, kuputira kweHPMC kune simba guru pahunhu hwezviputira uye hunhu hwekugadzira firimu. HPMC ine kuputira kusingapindi mvura pakati pe10,000 ne50,000 mPa·s inowanzo shandiswa kuona kuti kuputira kunofamba zvakanaka uye hunhu hwekugadzira firimu.
4. Kusarudzwa kweHPMC viscosity
Kusarudzwa kwehukobvu hweHPMC kunonyanya kuenderana nebasa rayo mukushandiswa kwakanangana uye zvinodiwa pakushanda kwekuvaka. Kazhinji, hukobvu hweHPMC hwakakwira, kukora kwacho kuri nani uye kuchengetedza mvura, asi hukobvu hwakanyanya hunogona kukonzera matambudziko pakuvaka. Saka, kusarudza HPMC ine hukobvu hwakakodzera ndiyo kiyi yekuona mhedzisiro yekuvaka.
Kukora: HPMC ine viscosity yakakura ine simba rakasimba rekukora uye yakakodzera kushandiswa kunoda kunamira kwakanyanya, senge tile glue neputty powder.
Kushanda kwekuchengetedza mvura: HPMC ine viscosity yakakura inonyatsogona kudzora hunyoro uye yakakodzera zvinhu zvinoda kuchengetedza hunyoro kwenguva yakareba, zvakaita sedhaka rakaoma.
Kugona kushanda: Kuti zvinhu zvishande zvakanaka, kusimba kuri pakati nepakati kunobatsira kuvandudza kugadzikana kwebasa rekuvaka, kunyanya mumamortar anozvienzanisa.
5. Zvinhu zvinokanganisa HPMC viscosity
Dhigirii repolymerization: Kana HPMC ikawedzera polymerization, viscosity inowedzera. Mashandisirwo akasiyana anoda kusarudzwa kweHPMC ine madhigirii akasiyana epolymerization kuti uwane mhedzisiro yakanaka.
Kuwanda kwemvura mumushonga: Kuwanda kweHPMC mumvura kunokanganisawo kusimba kwayo. Kazhinji, kana mvura iri mumushonga yakakwira, kusimba kwayo kunowedzerawo.
Tembiricha: Tembiricha ine simba guru pakusimba kweHPMC solutions. Kazhinji, simba rekusimba kweHPMC solutions rinoderera sezvo tembiricha ichiwedzera.
Sechinowedzerwa chakakosha muzvinhu zvekuvaka, viscosity yeHPMC inokanganisa zvikuru mashandiro ekuvaka uye mhedzisiro yekushandiswa kwechigadzirwa chekupedzisira. Huremu hweviscosity yeHPMC hunosiyana pakati pemashandisirwo, asi kazhinji huri pakati pe10,000 ne100,000 mPa·s. Pakusarudza HPMC yakakodzera, zvakakosha kufunga zvakakwana nezvemhedzisiro yeviscosity pahunhu hwezvinhu zvichienderana nezvinodiwa zvekushandisa nemamiriro ekuvaka, kuitira kuti uwane mhedzisiro yakanaka yekushandisa.
Nguva yekutumira: Chikunguru-08-2024