Abstract:
Hydroxyethylcellulose (HEC) i polymer inoshanda zvakasiyana-siyana ine huwandu hwakawanda hwekushandisa mumaindasitiri akasiyana siyana, imwe yemashandisirwo ayo akakosha ari mukugadzira pendi uye mapendi.Isu tinonyura muchimiro chemakemikari eHEC, rheological zvimiro, uye kuti zvivakwa izvi zvinopa sei maumbirwo ayo zvakasarudzika.
suma:
Hydroxyethylcellulose (HEC) ipolymer inonyungudika nemvura inotorwa kubva ku cellulose, polima yemusikirwo inowanikwa mumadziro esero rezvirimwa.HEC ine yakasarudzika zvivakwa nekuda kwechimiro chayo chemakemikari, ichiita kuti ive yakanaka kune akasiyana siyana maindasitiri ekushandisa.Munyika yependi uye machira, HEC inoita basa rakakosha mukusimudzira akati wandei akakosha zvivakwa senge viscosity control, kuchengetwa kwemvura, kuumbwa kwemafirimu uye kugadzikana kwese.
Kemikari chimiro uye rheological zvimiro zveHEC:
Kunzwisisa chimiro chemakemikari cheHEC kwakakosha kuti unzwisise basa rayo mumapende uye machira.HEC inotorwa kubva kune cellulose kuburikidza neakatevedzana emakemikari ekuchinja anounza hydroxyethyl mapoka.Kuvapo kwemapoka aya kunopa HEC kunyungudika kwemvura, zvichiita kuti ive yakakosha mukugadzirwa kwemvura.
Iyo rheological zvimiro zveHEC, kunyanya kugona kwayo kukora, yakakosha mukuputira maumbirwo.HEC inoshanda se rheology modifier, inokanganisa mafambiro ekuyerera uye viscosity yejasi.Ichi chivakwa chakakosha kudzivirira pigment kugadzika, kuve nechokwadi kunyangwe application uye kusimudzira kuvharika kwakaringana kana yaiswa nebhurashi kana roller.
Kushandiswa kweHEC mumvura-based coatings:
Mvura-based coatings inokosheswa nekuda kwekushomeka kwemamiriro ekunze uye yakaderera volatile organic compound (VOC) zvirimo.HEC inoita basa rakakosha mune aya magadzirirwo nekupa kugadzikana, kukora uye rheology kutonga.Iyo polymer inobatsira kudzivirira pigment kugadzika panguva yekuchengetera, inovimbisa inowirirana viscosity, uye inovandudza kushanda kwese kwepende.Pamusoro pezvo, HEC inobatsira kuwedzera nguva yakavhurika, nekudaro ichiwedzera nguva yekunyorera pendi isati yaoma.
Zvishandiso zveHEC mune solvent-based coatings:
Nepo mvura-based coatings ine hushamwari hwezvakatipoteredza, solvent-based formulations ichiri kuwanda mune mamwe maapplication.Kuenderana kweHEC nemvura uye zvinonyungudutsa zvinoita kuti ive sarudzo inosiyana-siyana yekunyungudutsa-based coatings.Mune aya magadzirirwo, HEC inoshanda sebhainda, inobatsira mukugadzira firimu uye kunamatira.Kugona kwayo kuchengetedza viscosity pamusoro petembiricha renji kwakakosha kune solvent-based masisitimu, kuve nechokwadi kugadzikana uye kunoenderana kushanda kwekushandisa.
Powder coating uye HEC:
Powder coatings yakakurumbira nekuda kwekusimba kwavo, kushamwaridzana kwezvakatipoteredza, uye nyore kushandisa.Kuwedzera HEC kune poda coatings kunowedzera kuyerera kwavo uye kuenzanisa zvivakwa.Iyo polymer inobatsira kudzora rheology yehupfu hwekuputira, kuve nechokwadi chakatsetseka, chakafanana firimu panguva yekushandiswa.Kunyungudika kwemvura kweHEC kunobatsira mukugadzira maitiro ehupfu hwekuputira, ichipa nzira iri nyore yekubatanidza iyo polymer mukugadzira.
HEC seyakagadzikana uye inochengetedza mvura mumiriri:
Pamusoro pebasa rayo se rheology modifier uye binder, HEC inoshanda seyakagadzika inoshanda mupendi uye coating maumbirwo.Iyo polymer inobatsira kudzivirira kupatsanurwa kwechikamu uye kunaya, zvichikonzera kugadzikana kwechigadzirwa kwenguva refu.Mukuwedzera, HEC inoshanda semugadziri wekuchengetedza mvura, kuderedza kurasikirwa kwekunyoro panguva yekuoma.Izvi zvinonyanya kukosha kuve nechokwadi chekugadzira firimu rakakodzera, kunamatira uye kusimba kwejasi.
mukupedzisa:
Hydroxyethylcellulose (HEC) chinhu chinogoneka uye chakakosha mupendi uye machira.Kusanganiswa kwayo kwakasiyana-siyana kwekunyungudika kwemvura, rheology control, firimu-kuumba zvivakwa uye kusimba kwakawedzera kunoita kuti ive yakakosha kuwedzera kune akasiyana magadzirirwo.Kubva pamvura-based coatings kusvika kune solvent-based coatings uye powder formulations, HEC inoita basa rakawanda mukuvandudza kushanda uye kuve nechokwadi chekupedzisira chigadzirwa chemhando.Sezvo kudiwa kwezvakatipoteredza zvine hushamwari uye yakakwirira-yekuita machira kuri kuramba kuchikwira, kushandiswa kweHEC kungangowedzera, ichiwedzera kusimbisa chinzvimbo chayo chakakosha muindasitiri yekupfeka.
Nguva yekutumira: Nov-28-2023