Cellulose ether ipolymer yemhando yepamusoro isingasanganisike semi-synthetic, inonyungudika mumvura uye inonyungudika. Ine mhedzisiro dzakasiyana mumaindasitiri akasiyana. Semuenzaniso, muzvinhu zvekuvaka zvemakemikari, ine mhedzisiro inotevera:
①Chinochengetedza mvura ②Chinokora ③Chinhu chekuyera ④Chinhu chinoumba mafirimu ⑤Chinosunga
Muindasitiri yepolyvinyl chloride, imulsifier uye dispersant; muindasitiri yemishonga, isimbi uye inoburitsa zvinhu zvishoma nezvishoma uye zvinodzorwa, nezvimwewo. Nekuti cellulose ine mhando dzakasiyana dzemigumisiro, mashandisirwo ayo ndiwo akanyanya kuwanda. Zvinotevera zvinotarisa pakushandiswa uye kushanda kwe cellulose ether muzvinhu zvakasiyana-siyana zvekuvaka.
(1) Mupendi yelatex:
Muindasitiri yependi yelatex, kusarudza hydroxyethyl cellulose, dhairekitori yakaenzana ye viscosity iRT30000-50000cps, iyo inoenderana nedhairekitori yeHBR250, uye chiyero chereferensi chinowanzo kuve 1.5‰-2‰. Basa guru rehydroxyethyl mupendi yelatex nderekukora, kudzivirira gelation yepigment, kubatsira kupararira kwepigment, kugadzikana kwelatex, uye kuwedzera viscosity yezvikamu, izvo zvinobatsira mukuita kwekuenzanisa kwekuvaka: Hydroxyethyl cellulose iri nyore kushandisa. Inogona kunyungudutswa mumvura inotonhora nemvura inopisa, uye haikanganisike ne pH value. Inogona kushandiswa zvakachengeteka pakati pePI value 2 ne12. Nzira dzekushandisa ndeidzi:
I. Wedzera zvakananga mukugadzirwa: nzira iyi inofanira kusarudza hydroxyethyl cellulose yakanonoka mhando, uye hydroxyethyl cellulose ine nguva yekunyungudika kweanopfuura maminetsi makumi matatu, matanho ayo ekushandisa ndeaya anotevera:
①Gadzira huwandu hwakawanda hwemvura yakacheneswa mumudziyo une chinhu chinokurumidzisa kuchekwa kwemvura yakawanda.
②Tanga kusanganisa nguva dzose nekumhanya kwakaderera, uye panguva imwe chete wedzera zvishoma nezvishoma hydroxyethyl mumushonga zvakaenzana.
③Ramba uchikurunga kusvika zvese zvakasanganiswa zvanyorova
④ Wedzera zvimwe zvinowedzerwa uye zvinowedzerwa zvepakutanga, nezvimwewo.
⑤ Kurunga kusvika mapoka ese ehydroxyethyl anyungudika zvachose, wobva wawedzera zvimwe zvinhu mufomura, wobva wakuya kusvika zvapera.
Ⅱ. Yakashongedzerwa nedoro remumba kuti ishandiswe gare gare: Nzira iyi inogona kusarudza cellulose instant, iyo ine simba rekudzivirira ganda. Chakanakira nzira iyi ndechekuti ine kuchinjika kukuru uye inogona kuwedzerwa zvakananga kupende yelatex. Nzira yekugadzirira yakafanana nematanho ①-④.
Ⅲ. Gadzirira porridge kuti uzoshandisa gare gare: Sezvo organic solvents isiri organic solvents (isinganyungudike) ye hydroxyethyl, organic solvents idzi dzinogona kushandiswa kugadzira porridge. organic solvents dzinonyanya kushandiswa organic liquids dziri mu latex pendi formulations, dzakadai se ethylene glycol, propylene glycol, uye firimu-forming agents (senge diethylene glycol butyl acetate). Porridge hydroxyethyl cellulose inogona kuwedzerwa zvakananga mupendi. Ramba uchikurunga kusvika yanyungudika zvachose.
(2) Muputty yekukwenya madziro:
Parizvino, mumaguta mazhinji munyika yangu, putty isingapindi mvura uye isingapindi scrub yave ichikosheswa nevanhu. Inogadzirwa ne acetal reaction yevinyl alcohol uye formaldehyde. Saka, chinhu ichi chinobviswa zvishoma nezvishoma nevanhu, uye zvigadzirwa zve cellulose ether zvinoshandiswa kutsiva chinhu ichi. Kureva kuti, pakugadzira zvinhu zvekuvaka zvisingapindi zvakatipoteredza, cellulose ndiyo chete chinhu chiripo parizvino.
Muputty isingapindi mvura, yakakamurwa kuita mhando mbiri: putty yeupfu hwakaoma neputty paste. Pakati pemhando mbiri idzi dzeputty, methyl cellulose yakagadziriswa uye hydroxypropyl methyl inofanira kusarudzwa. Hunhu hwehuputi hunowanzova pakati pe30000-60000cps. Mabasa makuru ecellulose muputty kuchengetedza mvura, kubatana uye kunyorovesa. Sezvo maformula eputty evagadziri vakasiyana akasiyana, mamwe igrey calcium, light calcium, white cement, nezvimwewo, uye mamwe igypsum powder, grey calcium, light calcium, nezvimwewo, saka maspecification, viscosity uye kupinda kwecellulose mumaformula maviri akasiyanawo. Huwandu hwakawedzerwa hunenge 2‰-3‰. Mukuvaka putty yekukwesha madziro, sezvo pasi pemadziro paine mwero wakati wekunwa mvura (mwero wekunwa mvura pamadziro ezvidhinha i13%, uye mwero wekunwa mvura pakongiri i3-5%), pamwe chete nekubuda kwemvura kunze kwenyika, kana putty ikarasikirwa nemvura nekukurumidza, Izvi zvinotungamira mukutsemuka kana kubviswa kwehupfu, izvo zvinoderedza simba reputty. Saka, kuwedzera cellulose ether kuchagadzirisa dambudziko iri. Asi mhando yefiller, kunyanya mhando yecalcium yedota, yakakoshawo zvikuru.
Nekuda kwekusimba kwakanyanya kwe cellulose, kuyerera kwe putty kunowedzerwawo, uye kusadzika kwechinhu panguva yekuvaka kunodziviswawo, uye zvinonyaradza uye zvinochengetedza basa mushure mekukwesha. Zviri nyore kuwedzera cellulose ether mu powder putty. Kugadzirwa kwayo uye kushandiswa kwayo zviri nyore. Filler nezvimwe zvinowedzerwa zvinogona kusanganiswa zvakaenzana mu dry powder.
(3) Dura rekongiri:
Mudhaka rekongiri, kuti simende iwane simba rayo guru, simende inofanira kunge yakanyoroveswa zvizere. Kunyanya mukuvakwa kwezhizha, dhaka rekongiri rinorasikirwa nemvura nekukurumidza, uye zviyero zvekunyoroveswa zvakakwana zvinoshandiswa kuchengetedza nekusasa mvura. Kutambisa zviwanikwa uye kushanda zvisina kunaka, chinhu chikuru ndechekuti mvura iri pamusoro chete, uye kunyoroveswa kwemukati hakusati kwakwana, saka mhinduro yedambudziko iri ndeyekuwedzera zvinhu zvisere zvinochengetedza mvura mudhaka rekongiri, kazhinji sarudza hydroxypropyl methyl kana methyl Cellulose, specification ye viscosity iri pakati pe20000-60000cps, uye huwandu hwekuwedzera i2%-3%. Mwero wekuchengetedza mvura unogona kuwedzerwa kusvika kupfuura 85%. Nzira yekushandisa mudhaka rekongiri ndeyekusanganisa upfu hwakaoma zvakaenzana wodurura mumvura.
(4) Mukupurasita gypsum, gypsum yakabatana, gypsum inobaya:
Nekukura kuri kuita indasitiri yekuvaka nekukurumidza, kudiwa kwevanhu kwezvinhu zvitsva zvekuvaka kuri kuwedzerawo zuva nezuva. Nekuda kwekuwedzera kwekuziva kwevanhu nezvekuchengetedzwa kwezvakatipoteredza uye kuvandudzwa kuri kuramba kuchienderera mberi kwekushanda zvakanaka kwekuvaka, zvigadzirwa zvegypsum zvine simende zvave kukura nekukurumidza. Parizvino, zvigadzirwa zvegypsum zvinonyanya kushandiswa iplastering gypsum, bonded gypsum, inlaid gypsum, uye tile adhesive. Plastering gypsum ipurasitiki yemhando yepamusoro yemadziro nedenga remukati. Rusvingo rwakapetwa narwo rwakanaka uye rwakatsetseka. Gwaro idzva remwenje rekuvaka ipurasitiki inonamira yakagadzirwa negypsum sechigadziko chezvinhu uye zvimwe zvinhu zvakasiyana-siyana. Yakakodzera kubatanidza pakati pezvinhu zvakasiyana-siyana zvemadziro ekuvaka zvisina organic. Haina chepfu, Hainhuhwi, ine simba rekutanga uye inokurumidza kuiswa, inobatanidza zvakasimba nezvimwe zvinhu, isimbi yekutsigira mabhodhi ekuvaka nekuvaka mabhuroko; gypsum caulking agent ipurasitiki pakati pemabhodhi egypsum uye filler yekugadzirisa madziro nemakomba.
Zvigadzirwa zvegypsum izvi zvine mabasa akasiyana-siyana. Kuwedzera kune basa regypsum nezvimwe zvine chekuita nazvo, nyaya huru ndeyekuti zvimwe zvinowedzerwa zve cellulose ether zvinotamba basa guru. Sezvo gypsum yakakamurwa kuita gypsum isina mvura uye hemihydrate gypsum, gypsum dzakasiyana dzine mhedzisiro yakasiyana pakushanda kwechigadzirwa, saka kukora, kuchengetedza mvura uye kunonoka kunosarudza mhando yezvinhu zvekuvaka zvegypsum. Dambudziko rinowanzoitika rezvinhu izvi nderekutsemuka nekupwanyika, uye simba rekutanga harigone kusvikwa. Kugadzirisa dambudziko iri, kusarudza rudzi rwe cellulose uye nzira yekushandisa compound ye retarder. Panyaya iyi, methyl kana hydroxypropyl methyl 30000 inowanzo sarudzwa. -60000cps, huwandu hwekuwedzera i1.5%–2%. Pakati pavo, cellulose inotarisa pakuchengetedza mvura uye kunonoka kwe lubrication. Zvisinei, hazvigoneke kuvimba ne cellulose ether se retarder, uye zvakakosha kuwedzera citric acid retarder kuti isanganiswe uye ishandiswe pasina kukanganisa simba rekutanga.
Kuchengetwa kwemvura kunowanzoreva kuti mvura yakawanda sei icharasika pasina kutorwa kwemvura kubva kunze. Kana madziro akaoma zvakanyanya, kutorwa kwemvura uye kupwanyika kwemvura kubva pasi kuchaita kuti chinhu chacho chirasikirwe nemvura nekukurumidza, uye kutsemuka nekupwanyika zvichaitikawo. Nzira iyi yekushandisa inosanganiswa nehupfu hwakaoma. Kana ukagadzira mhinduro, ndapota tarisa nzira yekugadzira mhinduro.
(5) Dura rekudzivirira kupisa rinopisa
Dura rekudzivirira kupisa imhando itsva yezvinhu zvinodzivirira kupisa mukati memadziro munzvimbo yekuchamhembe. Imidziyo yekudzivirira kupisa yakagadzirwa nezvinhu zvinodzivirira kupisa, dura uye binder. Muzvinhu izvi, 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 ndeyekusanganisa upfu hwakaoma.
(6) mumiririri weinterface
Sarudza HPNC 20000cps yemushonga wekubatanidza, sarudza 60000cps kana kupfuura yemushonga wekubatanidza mataira, uye tarisa pane chinosimbisa mumushonga wekubatanidza, izvo zvinogona kuvandudza simba rekudhonza uye simba rekudzivirira museve. Inoshandiswa semushonga unochengetedza mvura mukubatanidza mataira kudzivirira mataira kuti asakurumidza kupera mvura uye kudonha.
Nguva yekutumira: Kukadzi-16-2023