Real Stone Paint ine Cellulose Ether

Kufurira kwehuwandu hwe cellulose ether, hukama hwema molecular mass uye nzira yekushandura pamvura-inosveta uye kuchena chiitiko chepende chaiyo yematombo inokurukurwa, uye cellulose ether ine yakanyanya kuchena-kuchena kwemvura yependi yematombo chaiyo inoongororwa, uye kushanda kwakazara kwepende yematombo chaiwo kunoongororwa kuonekwa.

Mazwi akakosha:pendi yematombo chaiwo; mvura whitening resistance; cellulose ether

0,Nhanganyaya

Chaiyo dombo varnish ndeye synthetic resin emulsion jecha madziro ekuvakisa coating yakagadzirwa neakasikwa granite, yakapwanyika dombo uye dombo poda seaggregate, synthetic resin emulsion seyakadzika zvinhu uye inowedzerwa neakasiyana ekuwedzera. Iine maitiro uye maitiro ekushongedza ematombo echisikigo. Muchirongwa chekushongedza chekunze chezvivakwa zvepamusoro-soro, inofarirwa neruzhinji rwevaridzi uye vavaki. Zvisinei, mumazuva ekunaya, kunwa kwemvura uye kuchena kwakava kukanganisa kukuru kwepende yematombo chaiwo. Kunyange zvazvo pane chikonzero chikuru che emulsion, kuwedzerwa kwenhamba yakawanda yezvinhu zve hydrophilic zvakadai se cellulose ether inowedzera kunyura kwemvura yefirimu yepende yematombo chaiwo. Muchidzidzo ichi, kubva mumaoko e-cellulose ether, simba rehuwandu hwe cellulose ether, huremu hwema molecular huremu uye rudzi rwekugadzirisa pamvura-inonwisa uye kuchena chiitiko chepende yematombo chaiwo yakaongororwa.

1. Nzira yekutora mvura uye kuchena kwepende yematombo chaiwo

Mushure mekunge iyo chaiyo yependi pendi yakaomeswa, inowanzoita chena kana ikasangana nemvura, kunyanya padanho rekutanga rekuoma (12h). Mumamiriro okunze ekunaya kwemvura, kupfeka kuchave kwakapfava uye kuchena mushure mekushambidzwa nemvura kwenguva yakareba. Chikonzero chekutanga ndechekuti emulsion inotora mvura, uye yechipiri inokonzerwa ne hydrophilic zvinhu zvakadai se cellulose ether. Cellulose ether ine mabasa ekukora uye kuchengetedza mvura. Pamusana pekubatanidzwa kwema macromolecules, kuyerera kwechigadziriswa kwakasiyana neiyo yeNewtonian fluid, asi inoratidza maitiro anochinja nekuchinja kweshear force, kureva, ine high thixotropy. Kuvandudza kushanda kwekuvaka kwepende yematombo chaiwo. Cellulose inoumbwa neD-glucopyranosyl (anhydroglucose), uye iri nyore molecular formula ndeye (C6H10O5) n. Cellulose ether inogadzirwa ne cellulose doro hydroxyl boka uye alkyl halide kana imwe etherification agent pasi pemamiriro ealkaline. Hydroxyethyl cellulose ether chimiro, avhareji yenhamba yemapoka ehydroxyl anotsiviwa nema reagents pa anhydroglucose unit pa cellulose molecular cheni inonzi dhigirii rekutsinhanisa, mapoka e2, 3, ne6 hydroxyl ese anotsiviwa, uye iyo yakanyanya dhigirii yekutsiva i3. . Mapoka emahara ehydroxyl ari pamolecular cheni yecellulose ether anogona kudyidzana kuita mabhondi ehydrogen, uye anogonawo kudyidzana nemvura kugadzira mabhondi ehydrogen. Kunyura kwemvura uye kuchengetwa kwemvura kwe cellulose ether kune kukanganisa kwakananga pakubata kwemvura uye kuchena kwependi yedombo chaiyo. Kutorwa kwemvura uye kuchengetwa kwemvura kuita kwe cellulose ether kunoenderana nehuwandu hwekutsiviwa kwe cellulose, zvinotsiva uye dhigirii repolymerization ye cellulose ether pachayo.

2. Chikamu chekuedza

2.1 Zvishandiso zvekuyedza nemidziyo

JFS-550-multi-function muchina wekusimudzira kwakadzikama, kupararira kwepamusoro-soro uye kugaya jecha: Shanghai Saijie Chemical Equipment Co., Ltd.; JJ2000B electronic balance: Changshu Shuangjie Testing Instrument Factory; CMT-4200 yemagetsi universal yekuyedza muchina: Shenzhen Sansi Kuedza Equipment Co., Ltd.

2.2 Kuedza fomula

2.3 Kuedza maitiro

Wedzera mvura, defoamer, bactericide, antifreeze, film-forming aid, cellulose, pH regulator uye emulsion kune disperser maererano neformula kuti iparadzire zvakaenzana, wobva wawedzera jecha rine ruvara uye kurunga zvakanaka, wobva washandisa uwandu hwakakodzera hwehupfu Gadzirisa viscosity. , pararira zvakaenzana, uye uwane pendi yematombo chaiyo.

Itai bhodhi nependi yematombo chaiwo, uye itai mvura yekuchenesa bvunzo mushure mekurapa kwemaawa gumi nemaviri (kunyudzwa mumvura kwemaawa mana).

2.4 Kuongororwa kwekuita

Maererano neJG/T 24-2000 "Synthetic Resin Emulsion Sand Wall Paint", bvunzo yekushanda inoitwa, ichitarisa pamvura inochenera kuramba kweyakasiyana hydroxyethyl cellulose ether pendi yematombo chaiwo, uye zvimwe zviratidzo zvehunyanzvi zvinofanirwa kusangana nezvinodiwa.

3. Migumisiro uye nhaurirano

Zvinoenderana nemaitiro ekuita kwehydroxyethyl cellulose ether, mhedzisiro yehuwandu hwehydroxyethyl cellulose ether, huremu hwemamorekuru huremu uye nzira yekushandura pamvura-kuchena kushorwa kwepende chaiyo yedombo yakadzidzwa zvakanyanya.

3.1 Mhedzisiro yedosi

Nekuwedzera kwehuwandu hwehydroxyethyl cellulose ether, kuchena kwemvura kuramba kwepende chaiyo yematombo zvishoma nezvishoma kunowedzera. Iyo yakawanda yakawanda ye cellulose ether, iyo yakawanda nhamba yemahara hydroxyl mapoka, iyo yakawanda yemvura inoumba hydrogen zvisungo nayo, iyo mvura inotorwa mwero weiyo chaiyo dombo pendi firimu ichawedzera, uye kushomeka kwemvura kuchaderera. Iyo yakawanda yemvura mufirimu yepende, zviri nyore kuita chena pamusoro, saka kuchena kwemvura kushorwa kwakaipisisa.

3.2 Mhedzisiro yehama molecular mass

Kana huwandu hwe hydroxyethyl cellulose ethers ine akasiyana hama molecular mashes akafanana. Kukura kwema molecular mass, kunowedzera kuchena kwemvura kwependi yematombo chaiwo, izvo zvinoratidza kuti huremu hwema molecular ether yehydroxyethyl cellulose ether ine simba pakudzivirira kuchena kwemvura kwependi yematombo chaiwo. Izvi zvinodaro nekuti kemikari zvisungo > hydrogen bond > van der Waals simba, iyo yakakura chiyero chemolecular mass ye cellulose ether, ndiko kuti, iyo yakakura dhigirii yepolymerization, iyo yakawanda kemikari zvisungo zvinoumbwa nekubatanidzwa kwemayuniti eglucose, uye hukuru kupindirana kwesimba rehurongwa hwese mushure mekugadzira hydrogen zvisungo nemvura, iyo yakasimba kunyura kwemvura uye kugona kwekuchengetedza mvura, kunowedzera kuchena kwemvura kuramba kwepende chaiyo yedombo.

3.3 Kupesvedzera nzira yekushandura

Mhedzisiro yemhedzisiro inoratidza kuti iyo nonionic hydrophobic modification iri nani pane yekutanga, uye iyo anionic shanduko ndiyo yakaipisisa. Non-ionic hydrophobically modified cellulose ether, nekubatanidza hydrophobic mapoka pane molecular chain ye cellulose ether. Panguva imwecheteyo, kukora kwechikamu chemvura kunowanikwa kuburikidza nehydrogen bonding yemvura uye molecular chain entanglement. Iyo hydrophobic performance yehurongwa inoderedzwa, kuitira kuti hydrophobic yependi yematombo chaiyo inovandudzwa, uye kushomeka kwemvura kuchena kunovandudzwa. Anionically modified cellulose ether inogadziriswa ne cellulose uye polyhydroxysilicate, iyo inovandudza kukora, mashandiro e-anti-sag uye anti-splash performance ye cellulose ether, asi ionicity yayo yakasimba, uye kunyura kwemvura nekuchengetedza simba kunovandudzwa, Mvura inochenesa kuramba. yepende yematombo chaiyo inova yakaipa.

4. Mhedziso

Kunyura kwemvura uye kuchena kwepende chaiyo yematombo kunokanganiswa nezvinhu zvakawanda senge huwandu hweselulosi ether uye nzira yekuchinja yehukama molecular mass. Kutora mvura uye kuchena kwepende yematombo chaiwo.