Pfupiso:
Mumakore achangopfuura, machira ekudzivirira anobva mumvura akakurumbira zvikuru nekuda kwekusakuvara kwezvakatipoteredza uye huwandu hwawo hwezvinhu zvinonyungudika zve organic compound (VOC). Hydroxyethylcellulose (HEC) ipolymer inoshandiswa zvakanyanya mumvura mumafomu aya, inoshanda sechinosimbisa kuwedzera viscosity uye kudzora rheology.
suma:
1.1 Nhoroondo:
Mapendi emvura ave nzira isingakuvadzi nharaunda pane mapendi echinyakare anoshandiswa pakunyungudutsa mvura, achigadzirisa matambudziko ane chekuita nekubuda kwemhepo inokonzereswa nemakemikari uye kukanganisa nharaunda. Hydroxyethylcellulose (HEC) chinhu chinobva mu cellulose chinoshandiswa zvikuru mukugadzira mapendi emvura uye chinopa kudzora kwerheology uye kugadzikana.
1.2 Zvinangwa:
Chinyorwa chino chine chinangwa chekutsanangura hunhu hwekunyungudika kweHEC mumachira anobva mumvura uye kudzidza simba rezvinhu zvakasiyana-siyana pakunaka kwayo. Kunzwisisa zvinhu izvi kwakakosha pakuvandudza magadzirirwo emachira uye kuita kuti ashande zvakanaka.
Hydroxyethylcellulose (HEC):
2.1 Maumbirwo uye mashandiro:
HEC imhando ye cellulose derivative inowanikwa kuburikidza ne etherification reaction ye cellulose ne ethylene oxide. Kuiswa kwe hydroxyethyl groups mu cellulose backbone kunoita kuti inyungudike mumvura uye kunoita kuti ive polymer inokosha mumasystems ane mvura. Maumbirwo e HEC uye hunhu hwayo zvichakurukurwa zvakadzama.
Kunyungudika kweHEC mumvura:
3.1 Zvinhu zvinokanganisa kunyungudika kwemvura:
Kunyungudika kweHEC mumvura kunokanganiswa nezvinhu zvakati wandei, zvinosanganisira tembiricha, pH, uye huwandu hwemvura. Zvinhu izvi pamwe nemhedzisiro yazvo pakunyungudika kweHEC zvichakurukurwa, zvichipa ruzivo rwemamiriro ezvinhu anobatsira kuti HEC inyungudike.
3.2 Muganho wekunyungudika:
Kunzwisisa miganhu yekunyungudika kweHEC mumvura yepamusoro nepazasi kwakakosha pakugadzira machira ane simba rakanaka. Chikamu chino chichaongorora huwandu hwehuwandu hunoratidza kunyungudika kwakanyanya kweHEC pamwe nemigumisiro yekupfuura miganhu iyi.
Wedzera viscosity neHEC:
4.1 Basa reHEC mukupenya kwemuviri:
HEC inoshandiswa sechinhu chinosimbisa kukora kwezvipfeko zvinobva mumvura kuti ibatsire kuwedzera kukora uye kuvandudza maitiro e rheological. Nzira dzinoshandiswa neHEC kudzora kukora kwezvipfeko dzichaongororwa, zvichisimbisa kudyidzana kwayo nemamorekuru emvura nezvimwe zvinhu zviri muchimiro chekukora.
4.2 Mhedzisiro yezvinoshanduka zvefomula pa viscosity:
Zvinhu zvakasiyana-siyana zvinoumba, kusanganisira kuwanda kweHEC, tembiricha, uye mwero wekuchekwa kwechinhu, zvinogona kukanganisa zvakanyanya kuwanda kwezvipfeko zvinobuda mumvura. Chikamu chino chichaongorora kukanganiswa kwezvipfeko izvi pakusimba kwezvipfeko zvine HEC kuti zvipe ruzivo rwakakosha kune vanogadzira zvinhu.
Mashandisirwo uye tarisiro yeramangwana:
5.1 Mashandisirwo emaindasitiri:
HEC inoshandiswa zvakanyanya mumaindasitiri akasiyana-siyana akadai sependi, manamatisi uye zvinonamira. Chikamu chino chicharatidza mipiro chaiyo yeHEC muzvipfeko zvinobuda mumvura muzvishandiso izvi uye chichakurukura zvakanakira zvayo kupfuura zvimwe zvinonamira.
5.2 Nzira dzekutsvaga mune ramangwana:
Sezvo kudiwa kwezvipfeko zvinogara kwenguva refu uye zvinoshanda zvakanyanya kuri kuramba kuchikura, nzira dzekutsvaga mune ramangwana mumunda wezvekushandisa zveHEC dzichaongororwa. Izvi zvinogona kusanganisira hunyanzvi mukugadzirisa HEC, matekiniki matsva ekugadzira, uye nzira dzepamusoro dzekutarisa.
mhedziso:
Muchidimbu, chikamu chino chicharatidza kukosha kwekunyungudika uye kudzora kupenya kwemvura muzviputiro zvinobuda mumvura uchishandisa HEC. Chinyorwa chino chichapedzisa nekubatsira kunoita vanogadzira zvinhu uye mazano ekuwedzera kutsvagurudza kuti vanzwisise HEC muzviputiro zvinobuda mumvura.
Nguva yekutumira: Zvita-05-2023