Methyl hydroxyethyl cellulose (MHEC) chinhu chakakosha che cellulose ether chine shanduko mbiri dze methylation ne hydroxyethylation. Muma coatings anobva mumvura, MHEC ine basa rakakosha nekuda kwehunhu hwayo hwepanyama nemakemikari.
I. Hunhu hwekushanda
Kukora
Mapoka ehydroxyethyl nemethyl ari muchimiro cheMHEC molecular anogona kugadzira network structure mu aqueous solution, nokudaro zvichiwedzera viscosity ye coating. Kukora uku kunoita kuti ikwanise kuwana rheology yakakwana pahuwandu hwakaderera, nokudaro ichideredza huwandu hwe coating uye ichichengetedza mari.
Kugadziriswa kwetsinga dzemudumbu
MHEC inogona kupa chifukidziro ichi kuyerera zvakanaka uye hunhu hwekudzivirira kudonha. Hunhu hwayo hwepseudoplastic hunoita kuti chifukidziro chive nekupenya kwakanyanya mumamiriro asina kusimba, uye kupenya kunogona kuderedzwa panguva yekuisa, izvo zviri nyore kushandisa pakukwesha, pakumonera kana pakupfapfaidza, uye pakupedzisira inogona kukurumidza kudzoreredza kupenya kwekutanga mushure mekunge kuvaka kwapera, zvichideredza kudonha kana kudonha kwemvura.
Kuchengetwa kwemvura
MHEC ine hunhu hwakanaka hwekuchengetedza mvura uye inogona kudzora mwero wekubuda kwemvura. Hunhu uhwu hwakakosha zvikuru pakudzivirira pendi inobva mumvura kuti isatsemuke, isaputswe uye isakanganiswe panguva yekuomeswa, uye inogonawo kuvandudza kutsetseka uye kufanana kwependi panguva yekuvaka.
Kugadzikana kweEmulsion
Semushonga we surfactant, MHEC inogona kuderedza kushushikana kwezvimedu zve pigment mumapendi anobva mumvura uye kukurudzira kupararira kwadzo zvakaenzana muzvinhu zvepasi, nokudaro ichivandudza kugadzikana uye kuenzana kwependi uye kudzivirira kudonha kwepigment uye kunaya kwemvura.
Kuora kwezvinhu zvipenyu
MHEC inotorwa kubva mu cellulose yechisikigo uye inogona kuora zvakanaka, izvo zvinoita kuti ive nemabhenefiti ari pachena mukupenda kwemvura kusingakuvadzi nharaunda uye inobatsira kuderedza kusvibiswa kwenharaunda.
2. Mabasa makuru
Chinokora
MHEC inonyanya kushandiswa sechinhu chinosimbisa pendi dzinobva mumvura kuti dzivandudze mashandiro adzo ekuvaka uye kunaka kwefirimu nekuwedzera kusimba kwependi. Semuenzaniso, kuwedzera MHEC papendi yelatex kunogona kugadzira chifukidziro chakafanana pamadziro kudzivirira pendi kuti isatsvedze uye isadonhe.
Mutongi weRheology
MHEC inogona kugadzirisa rheology yependi yakagadzirwa nemvura kuitira kuti ive nechokwadi chekuti iri nyore kushandisa panguva yekuvaka uye inogona kudzokera nekukurumidza mumamiriro akasimba. Kuburikidza nekudzora rheological uku, MHEC inovandudza mashandiro ekuvaka kwependi, zvichiita kuti ive yakakodzera maitiro akasiyana-siyana ekuputira.
Chinhu chinochengetedza mvura
Mumachira anogadzirwa nemvura, hunhu hweMHEC hunodzivirira mvura hunobatsira kuwedzera nguva yekugara kwemvura muchira, kunatsiridza kuenzana kwekuoma kwechira, uye kudzivirira kumuka kwezvimedu uye zvikanganiso pamusoro.
Chinosimbisa
Nekuda kwekugona kwayo kugadzira emulsifying, MHEC inogona kubatsira machira emvura kugadzira emulsion system yakagadzikana, kudzivirira kunaya kwemvura uye kudonha kwemavara epigment, uye kuvandudza kugadzikana kwekuchengetedza kwejira.
Rubatsiro rwekugadzira mafirimu
Munguva yekugadzira firimu, kuvapo kweMHEC kunogona kukurudzira kufanana uye kutsetseka kwejira, kuitira kuti jira rekupedzisira rive nechitarisiko chakanaka uye rinoshanda zvakanaka.
3. Mienzaniso yekushandisa
Pendi yeLatex
Pakupenda kwelatex, basa guru reMHEC nderekukora uye kuchengetedza mvura. Inogona kuvandudza zvakanyanya hunhu hwekubvisa nekukwesha pendi yelatex, uye kuona kuti kupeta kwayo kunoramba kwakatsetseka uye kwakafanana panguva yekuomesa. Pamusoro pezvo, MHEC inogonawo kuwedzera hunhu hwepende yelatex inodzivirira kupwanyika uye kudzika, zvichiita kuti maitiro ekuvaka ave akapfava.
Pendi yehuni inofambiswa nemvura
Mukupenda kwehuni dzinofambiswa nemvura, MHEC inovandudza kutsetseka uye kufanana kwependi nekugadzirisa kusimba uye rheology yependi. Inogonawo kudzivirira pendi kuti isatsvedzerere uye isasvibe pamusoro pehuni, uye inowedzera kushongedza uye kugara kwenguva refu kwefirimu.
Pendi yezvivakwa inofambiswa nemvura
Kushandiswa kweMHEC mupendi yekuvaka inoburitswa nemvura kunogona kuvandudza mashandiro ependi uye kunaka kwependi, kunyanya kana pendi ichiputirwa pamusoro pemadziro nedenga, zvinogona kudzivirira kudonha nekudonha kwependi. Pamusoro pezvo, hunhu hweMHEC hwekuchengetedza mvura hunogonawo kuwedzera nguva yekuoma kwependi, kuderedza kutsemuka uye zvikanganiso pamusoro.
Pendi yemumaindasitiri inofambiswa nemvura
Mupendi yemumaindasitiri inofambiswa nemvura, MHEC haingoshandi chete sechinhu chinosimbisa uye chinochengetedza mvura, asiwo inovandudza kupararira nekugadzikana kwependi, kuitira kuti pendi irambe ichishanda zvakanaka uye yakasimba munzvimbo dzakaoma dzemaindasitiri.
IV. Tarisiro yemusika
Nekuda kwemitemo yekudzivirira zvakatipoteredza iri kuramba ichioma uye kudiwa kwezvinhu zvekuvaka zvakasvibira kuri kuramba kuchikura, kudiwa kwependi dzinoshandiswa mumvura kuri kuramba kuchikura. Sechinowedzerwa chakakosha mumapendi anogadzirwa mumvura, MHEC ine mikana yakakura yemusika.
Kukurudzira mitemo yezvakatipoteredza
Pasi rose, mitemo yezvakatipoteredza yakawedzera kuomesa mitemo yekudzivirira kusvibiswa kwemakemikari anokuvadza (VOC), izvo zvakakurudzira kushandiswa kwezvipfeko zvinoputirwa nemvura. Sechinowedzera kuchengetedzwa kwezvakatipoteredza, MHEC ine basa rakakosha muzvipfeko zvinoputirwa nemvura, uye kudiwa kwayo kuchawedzera nekuwedzera kwemusika wezvipfeko zvinoputirwa nemvura.
Kudiwa kuri kukura muindasitiri yekuvaka
Kuwanda kwekudiwa kwemachira ekudzivirira ane VOC shoma uye anoshanda zvakanyanya muindasitiri yekuvaka kwakakurudzirawo kushandiswa kweMHEC mumachira ekudzivirira ekuvaka anoburitswa mumvura. Kunyanya kumachira ekudzivirira emukati nekunze, MHEC inogona kupa mashandiro akanaka ekuvaka uye kugara kwenguva refu kuti isangane nezvinodiwa pamusika.
Kuwedzera kushandiswa kwezvipfeko zveindasitiri
Kuwanda kwekuda kwezvipfeko zvine hushamwari kune nharaunda mumaindasitiri kwakakurudzirawo kushandiswa kweMHEC mumapurasitiki emumaindasitiri. Sezvo mapurasitiki emumaindasitiri achikura achienda kunzvimbo dzine hushamwari kune nharaunda uye dzinoshanda zvakanaka, MHEC ichaita basa rakakosha mukuvandudza mashandiro ezvipfeko uye hunhu hwenzvimbo.
Methyl hydroxyethyl cellulose (MHEC) inoita basa guru mukuputira mvura ine simba guru, kugadzirisa rheology, kuchengetedza mvura, kugadzikana kwe emulsion uye kuora kwehupenyu. Kushandiswa kwayo mukuputira mvura hakungogadzirisi mashandiro ekuvaka uye kunaka kwekuputira kwezviputira, asiwo kunoenderana nemaitiro ekuchengetedzwa kwezvakatipoteredza uye budiriro inoenderera mberi. Nekukura kuri kuita kudiwa kwezviputira mvura zvine simba guru, zvishoma zveVOC, mikana yekushandiswa kweMHEC munzvimbo iyi ichave yakakura.
Nguva yekutumira: Chikumi-18-2024