Hydroxypropyl starch ether (HPS)uyeether ye cellulosezvinhu zviviri zvinowedzerwa zvemakemikari ekuvaka, zvinoshandiswa zvakanyanya muzvinhu zvekuvaka, zvakaita sedhaka, putty powder, coatings, nezvimwewo. Kunyangwe zvichifanana mune zvimwe zvinhu, kune misiyano yakakura muzvinhu zvakawanda zvakaita sezvinhu zvakabikwa, maumbirwo emakemikari, hunyanzvi hwemuviri, mhedzisiro yekushandisa, uye mitengo.
1. Zvinhu zvisina kugadzirwa uye chimiro chemakemikari
Hydroxypropyl starch ether (HPS)
HPS yakavakirwa pastarch yechisikigo uye inowanikwa kuburikidza ne etherification modification reaction. Zvinhu zvayo zvikuru zvirimwa zvechibage, gorosi, mbatatisi nezvimwe zvirimwa zvechisikigo. Mamorekuru estarch anoumbwa nemayuniti eglucose akabatana ne α-1,4-glycosidic bonds uye huwandu hushoma hwe α-1,6-glycosidic bonds. Mushure me hydroxypropylation, boka re hydrophilic hydroxypropyl rinounzwa muHPS molecular structure, zvichiita kuti ive nekukora, kuchengetedza mvura uye mabasa ekugadzirisa.
ether ye cellulose
MaCellulose ethers anobva mu cellulose yechisikigo, senge donje kana huni. Cellulose inoumbwa nemayuniti eglucose akabatana ne β-1,4-glycosidic bonds. Ma ethers e cellulose anowanzo sanganisira hydroxypropyl methylcellulose (HPMC), methylcellulose (MC), hydroxyethyl cellulose (HEC), nezvimwewo. Makemikari aya anounza zvimwe zvinhu zvakasiyana kuburikidza ne etherification reactions uye ane kugadzikana kwakanyanya kwemakemikari uye hunhu hwepanyama.
2. Hunhu hwemuviri
Hunhu hwekushanda kweHPS
Kukora: HPS ine simba rakanaka rekukora, asi kana ichienzaniswa ne cellulose ether, kugona kwayo kukora kwakaderera zvishoma.
Kuchengetwa kwemvura: HPS ine mvura iri pakati nepakati uye yakakodzera zvinhu zvekuvaka zviri pakati nepakati.
Kugona kushanda: HPS inogona kuvandudza kushanda kwedhaka uye kuderedza kudzika kwedhaka panguva yekuvaka.
Kuramba tembiricha: HPS inonyanya kukanganiswa netembiricha uye inokanganiswa zvakanyanya netembiricha yekunze.
Hunhu hwekushanda kwe ethers dze cellulose
Kukora: Cellulose ether ine simba guru rekukora uye inogona kuwedzera zvakanyanya kunaka kwemortar kana putty.
Kuchengeta mvura: Cellulose ether ine hunhu hwakanaka hwekuchengetedza mvura, kunyanya munzvimbo dzinopisa zvakanyanya, izvo zvinogona kuwedzera nguva yekuvhurwa kwemota uye kudzivirira kurasikirwa nemvura zvakanyanya.
Kugona kushanda: Cellulose ether yakanaka kwazvo mukuvandudza kushanda uye inogona kuderedza zvinobudirira matambudziko akadai sekutsemuka nekupwanyika.
Kuramba tembiricha: Cellulose ether inogona kuchinjika zvakanyanya pakuchinja kwetembiricha uye inoshanda zvakagadzikana.
3. Mhedzisiro yekushandisa
Kushandiswa kweHPS
Mudhaka rakaoma, HPS inonyanya kuita basa rekuvandudza kushanda, kuvandudza kuchengetwa kwemvura, uye kuderedza kupatsanurwa nekuparadzaniswa. Haidhuri uye yakakodzera kushandiswa mumamiriro ezvinhu ane zvinodiwa zvekudzora mitengo yakakwira, zvakaita sehupfu hwemukati hwemadziro, dhaka rekuyera pasi, nezvimwewo.
Kushandiswa kwemugumisiro we cellulose ether
Cellulose ethersAnoshandiswa zvakanyanya mumamortar anoshanda zvakanyanya, matanda emataira, zvinhu zvakagadzirwa negypsum uye masisitimu ekudzivirira madziro ekunze. Hunhu hwayo hwekukora uye hwekuchengetedza mvura hunogona kuvandudza zvakanyanya simba rekubatanidza uye kushanda kwechinhu ichi kusingatsvedzeri, uye hwakakodzera zvakanyanya mapurojekiti ane zvinodiwa zvakanyanya pakushanda kwekuvaka uye mhando yechigadzirwa chapera.
4. Mutengo nekuchengetedzwa kwezvakatipoteredza
mutengo:
HPS ine mutengo wakaderera uye yakakodzera kushandiswa mumisika inotarisa mitengo. Cellulose ethers inodhura zvishoma, asi inoshanda zvakanaka uye inodhura zvishoma mumabasa ekuvaka akaomarara.
Kudzivirirwa kwezvakatipoteredza:
Zvese zvinobva muzvinhu zvakasikwa uye zvine hunhu hwakanaka hwezvakatipoteredza. Zvisinei, nekuda kwekuti mishonga mishoma inoshandiswa mukugadzirwa kweHPS, mutoro wayo wezvakatipoteredza unogona kunge wakaderera.
5. Hwaro hwekusarudza
Zvinodiwa pakushanda: Kana uchida zvinhu zvakawanda zvekukora uye kuchengetedza mvura, unofanira kusarudza cellulose ether; kune zvinhu zvinodhura zvishoma asi zvinoda kuvandudzwa pakushanda, unogona kufunga nezvekushandisa HPS.
Mashandisirwo: Kuvakwa kwekupisa kwakanyanya, kuputira madziro ekunze, kunamira mataira nezvimwe zvinoda rutsigiro rwepamusoro-soro zvinonyanya kukodzera cellulose ether; kune putty yemadziro yemukati kana basic mortar, HPS inogona kupa mhinduro dzisingadhuri uye dzinoshanda.
Hydroxypropyl starch etheruyeether ye cellulose chimwe nechimwe chine zvachakanakira uye chine mabasa akasiyana mukuvaka. Sarudzo yacho inofanira kutariswa zvizere zvichienderana nezvinodiwa pakushanda, kudzora mitengo, mamiriro ekuvaka nezvimwe zvinhu zvepurojekiti chaiyo kuti pave nemhedzisiro yakanaka yekushandiswa.
Nguva yekutumira: Mbudzi-21-2024