Cellulose ether rudzi rwepolymer ine molecular polymer isingasanganisike semi-synthetic. Ine mhando mbiri dzezvinhu zvinonyungudika mumvura uye zvinonyungudika. Ine mhedzisiro dzakasiyana mumaindasitiri akasiyana. Semuenzaniso, muzvinhu zvekuvaka zvemakemikari, ine mhedzisiro inotevera: ①Mushonga unochengetedza mvura ②Thickener ③Leveling ④Film-forming ⑤Binder; muindasitiri yePVC, imulsifier uye dispersant; muindasitiri yemishonga, i binder uye Nekuti cellulose ine mhedzisiro dzakasiyana-siyana, ndiyo inonyanya kushandiswa. Pasi apa ndichatarisa mashandisirwo uye mashandiro e cellulose ethers muzvinhu zvekuvaka zvine hushamwari kune nharaunda.
1. Pendi yelatex
Muindasitiri yekupenda latex, hydroxyethyl cellulose inofanira kusarudzwa. Chinonyanya kutsanangurwa che viscosity iRT30000-50000cps, uye chiyero chereferensi chinowanzova 1.5‰-2‰. Basa guru rehydroxyethyl mupendi latex nderekukora, kudzivirira pigment gelation, kubatsira kupararira kwepigment, latex, uye kugadzikana, uye inogona kuvandudza viscosity yezvikamu uye kubatsira mukuita kwekuenzanisa kwekuvaka: Hydroxyethyl Ethyl cellulose iri nyore kushandisa. Inogona kunyungudutswa mumvura inotonhora nemvura inopisa, uye haikanganisike ne pH value. Inogona kushandiswa pakati pe pH value ye2 ne12. Kune nzira nhatu dzinotevera:
I. Wedzera zvakananga mukugadzirwa:
Nzira iyi inofanira kusarudza hydroxyethyl cellulose yakanonoka mhando - hydroxyethyl cellulose ine nguva yekunyungudika kweanopfuura maminetsi makumi matatu. Matanho ekushandisa ndeaya anotevera: ① Wedzera huwandu hwakati hwemvura yakachena mumudziyo une agitator ine high-shear ② Tanga kukurunga nguva dzose nekumhanya kwakaderera, uye panguva imwe chete zvishoma nezvishoma uye zvakaenzana wedzera boka rehydroxyethyl mumushonga ③ Ramba uchikurunga kusvika zvese zvinhu zvanyorova kuburikidza ④ Wedzera zvimwe zvinowedzera uye alkaline additives, nezvimwewo. ⑤ Kurunga kusvika mapoka ese ehydroxyethyl anyungudika zvachose, Wedzera zvimwe zvinoshandiswa muresipi uye gaya kusvika zvapera.
Ⅱ. Yakashongedzerwa nedoro remumba:
Nzira iyi inogona kusarudza mhando inokurumidza, uye ine simba re anti-mildew cellulose. Chakanakira nzira iyi ndechekuti ine kuchinjika kukuru uye inogona kuwedzerwa zvakananga kupende yelatex. Nzira yekugadzirira yakafanana nematanho e ①–④.
Ⅲ. Kugadzira zvinhu zvakaita seporiji:
Sezvo zvinonyungudutsa zve organic zvisiri zvinonyungudutsa zvakanaka (zvisinganyungudike) zvemapoka e hydroxyethyl, porridge inogona kugadzirwa nezvinyungudutsa izvi. Zvinonyungudutsa zve organic zvinonyanya kushandiswa i organic liquids mu latex pendi formulations, dzakadai se ethylene glycol, propylene glycol uye film formers (senge diethylene glycol butyl acetate). Porridge hydroxyethyl cellulose inogona kuwedzerwa zvakananga mupendi. Ramba uchikurunga kusvika yanyungudika zvachose.
2, kukwenya putty yemadziro
Parizvino, putty isingakuvadzi nharaunda isingapindi mvura uye isingakwizike mumaguta mazhinji munyika yangu yave ichikosheswa nevanhu. Mumakore mashoma apfuura, nekuti putty yakagadzirwa neglue yekuvaka inoburitsa gasi reformaldehyde uye inokuvadza hutano hwevanhu, glue yekuvaka inogadzirwa nepolymer. Inogadzirwa neacetal reaction yevinyl alcohol uye formaldehyde. Saka, chinhu ichi chinobviswa zvishoma nezvishoma nevanhu, uye zvigadzirwa zve cellulose ether zvinotsiviwa nechinhu ichi, kureva kuti, kugadzirwa kwezvinhu zvekuvaka zvisingakuvadzi nharaunda, cellulose ndiyo chete chinhu parizvino.
Muputty isingapindi mvura, inokamurwa kuita dry powder putty neputty paste. Pakati pemhando mbiri idzi dzeputty, modified methyl cellulose nehydroxypropyl methyl zvinowanzo sarudzwa. Specification ye viscosity inowanzo kuve pakati pe30000-60000cps. Mabasa makuru e cellulose muputty ndeyekuchengetedza mvura, kubatana uye kunyorovesa.
Sezvo maformula eputty evagadziri vakasiyana-siyana akasiyana, mamwe igrey calcium, light calcium, white cement, nezvimwewo, uye mamwe igypsum powder, grey calcium, light calcium, nezvimwewo, saka maformula maviri aya anosarudza ma specifications e cellulose, viscosity uye kupinda kwayo. Huwandu hwekuwedzera hunenge 2‰-3‰.
Mukugadzira putty yemadziro ekukwesha, nekuti pasi pemadziro pane imwe nzira yekukwesha mvura (muyero wekukwesha mvura pamadziro ezvidhinha i13%, uye muyero wekukwesha mvura pakongiri i3-5%), pamwe chete nekubuda kwemvura kubva kunze, kana putty ikarasikirwa nemvura nekukurumidza, inotungamira mukutsemuka kana kubviswa kwehupfu nezvimwe zviitiko, nokudaro ichideredza simba reputty. Nekuda kweizvi, kuwedzera cellulose ether kuchagadzirisa dambudziko iri. Asi mhando yefiller, kunyanya mhando ye lime calcium, yakakoshawo zvikuru. Nekuti cellulose ine viscosity yakakwira, inowedzerawo kuyerera kweputty, inodzivirira kudzika panguva yekuvaka, uye inonyaradza uye inochengetedza basa mushure mekukwesha.
3. Dura rekongiri
Mudhaka rekongiri, kuti simende isvike pakasimba, simende inofanira kunge yakanyoroveswa zvakakwana, kunyanya mukuvakwa kwezhizha, dhaka rekongiri rinorasikirwa nemvura nekukurumidza, uye matanho emvura yakakwana anotorwa kuchengetedza nekusasa mvura. Kutambisa zviwanikwa uye kushanda zvisina kunaka, chinhu chikuru ndechekuti mvura iri pamusoro chete, uye mvura yemukati haisati yakwana, saka mhinduro yedambudziko iri ndeyekuwedzera hydroxypropyl methyl cellulose kana methyl cellulose mudhaka rekongiri. Hunhu hwe viscosity huri pakati pe20000–60000cps, huwandu hwekuwedzera hunenge 2‰–3‰, uye mwero wekuchengetedza mvura unogona kuwedzerwa kusvika kupfuura 85%. Nzira yekushandisa mudhaka rekongiri ndeyekusanganisa upfu hwakaoma zvakaenzana wobva wawedzera mvura.
4. Mukugadzira plaster, plaster yekubatanidza uye plaster ye caulking
Nekukura kuri kuita indasitiri yekuvaka nekukurumidza, kudiwa kwevanhu kwezvinhu zvitsva zvekuvaka kuri kuwedzerawo zuva nezuva. Nekuda kwekuwedzera kweruzivo rwevanhu nezvekuchengetedzwa kwezvakatipoteredza uye kuvandudzwa kuri kuramba kuchiitwa kwekushanda zvakanaka kwekuvaka, zvigadzirwa zvegypsum zvine simende zvave kukura nekukurumidza. Parizvino, zvigadzirwa zvegypsum zvinonyanya kushandiswa zvinosanganisira gypsum yekupurasita, gypsum yekusunga, gypsum yekupinza, tile adhesive nezvimwewo.
Plaster yeStucco imhando yezvinhu zvemhando yepamusoro zvekupurasita madziro nematenga emukati. Madziro akapurasita nayo akanaka uye akatsetseka, haadonhedze hupfu, anonamatira zvakasimba pasi pevhu, haana kutsemuka kana kudonha, uye haatsvedzeri moto; plaster yekubatanidza imhando yeplaster. Rudzi rutsva rwekunamira kwebhodhi rekuvaka chinhu chinonamira chakagadzirwa negypsum sechinhu chepasi uye chinowedzera zvimwe zvinhu zvakasiyana-siyana. Chakakodzera kubatanidza pakati pezvinhu zvakasiyana-siyana zvemadziro ekuvaka zvisina organic. Hachina chepfu, hachina kunaka, Chine hunhu hwekusimba kwekutanga, kugadzika nekukurumidza uye kubatana kwakasimba, uye chinhu chinotsigira kuvaka mabhodhi ekuvaka nemabhuroko;
Zvigadzirwa zvegypsum izvi zvine mabasa akasiyana-siyana, pamusoro pebasa regypsum nezvimwe zvinozadza, nyaya huru ndeyekuti cellulose ether inobatsira inotamba basa guru. Sezvo gypsum yakakamurwa kuita anhydrite nehemihydrate gypsum, gypsum dzakasiyana dzine mhedzisiro yakasiyana pakushanda kwechigadzirwa, saka kukora, kuchengetedza mvura uye kunonoka zvinosarudza mhando yezvinhu zvekuvaka zvegypsum. Dambudziko rinowanzoitika rezvinhu izvi kutsemuka kwegomba, uye simba rekutanga harigone kusvikwa. Kugadzirisa dambudziko iri, idambudziko rekusarudza rudzi rwecellulose uye nzira yekushandisa composite ye retarder. Panyaya iyi, methyl kana hydroxypropyl methyl 30000 inowanzo sarudzwa. -60000cps, huwandu hwekuwedzera huri pakati pe1.5‰–2‰, chinangwa che cellulose kuchengetedza mvura, kunonoka uye kunyorovesa.
Zvisinei, hazvigoneke kuvimba ne cellulose ether se retarder, uye zvakakosha kuwedzera citric acid retarder kuti uisanganise woishandisa kuitira kuti simba rekutanga risakanganiswe.
Kuwanda kwemvura inochengetwa kazhinji kunoreva kurasikirwa kwemvura kwechisikigo pasina kutorwa kwemvura kubva kunze. Kana madziro akaoma zvakanyanya, kutorwa kwemvura uye kupwa kwemvura kubva pasi kuchaita kuti zvinhu zvirasikirwe nemvura nekukurumidza, uye kutsemuka nekupwanyika zvichaitikawo.
Nzira iyi yekushandisa inosanganiswa neupfu hwakaoma. Kana mhinduro yagadzirwa, ndapota tarisa nzira yekugadzirira mhinduro yacho.
5. Duri rekudzivirira kupisa
Mudziyo wekupisa unoshandiswa pakudzivirira kupisa imhando itsva yezvinhu zvinodzivirira kupisa mukati memadziro munzvimbo yekuchamhembe. Imidziyo yemadziro inoumbwa nezvinhu zvinodzivirira kupisa, mudziyo uye binder. Mumidziyo iyi, cellulose inoita basa guru mukubatanidza uye kuwedzera simba. Kazhinji sarudza methyl cellulose ine viscosity yakakwira (inenge 10000eps), chiyero chinowanzova pakati pe2‰-3‰), uye nzira yekushandisa inzira yekusanganisa upfu hwakaoma.
6. Mumiririri weinterface
Mushonga wekubatanidza iHPNC20000cps, uye glue yemataira inodarika 60000cps. Mumushonga wekubatanidza, inonyanya kushandiswa sechinhu chinosimbisa, chinogona kuvandudza simba rekusunga uye kuramba miseve.
Nguva yekutumira: Mbudzi-02-2022