Cellulose ether ipolymer isiri ionic semi-synthetic, inonyungudika mumvura uye inonyungudika. Ine mhedzisiro dzakasiyana mumaindasitiri akasiyana. Semuenzaniso, muzvinhu zvekuvaka zvemakemikari, ine mhedzisiro inotevera:
①Chinochengetedza mvura
②Kobvu
③Kuenzanisa
④Kuumbwa kwemafirimu
⑤ Bhainda
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. Tevere, ndichatarisa pakushandiswa uye kushanda kwe cellulose ether muzvinhu zvakasiyana-siyana zvekuvaka.
1. Muindasitiri yependi yelatex, sarudza hydroxyethyl cellulose, iyo yakajairika viscosity yakaenzana ndeye RT30000-50000cps, iyo inoenderana neyakatsanangurwa 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 pakushanda kwekuenzanisa kwekuvaka: Hydroxyethyl cellulose iri nyore kushandisa. Inogona kunyungudutswa mumvura inotonhora kana mumvura inopisa, uye haikanganisike ne pH value. Inogona kushandiswa zvakachengeteka pakati pePI value 2 ne12. Nzira dzekushandisa ndeidzi:
I. Wedzera zvakananga mukugadzirwa: Panzira iyi, hydroxyethyl cellulose delayed type inofanira kusarudzwa, uye hydroxyethyl cellulose ine nguva yekunyungudika kweanopfuura maminetsi makumi matatu inoshandiswa. Mvura yakacheneswa yakawanda mumuromo ②Tanga kusanganisa nekukurumidza kwakaderera nguva dzose, uye panguva imwe chete wedzera hydroxyethyl zvishoma nezvishoma mumushonga zvakaenzana ③Ramba uchikurunga kusvika zvese zvakanyungudika zvanyorova ④Wedzera zvimwe zvinowedzera uye alkaline additives, nezvimwewo. ⑤Kurunga kusvika mapoka ese ehydroxyethyl anyungudika zvachose, wobva wawedzera zvimwe zvikamu mufomura, wozvikuya kusvika chigadzirwa chapera.
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, putty yekudzivirira zvakatipoteredza isingapindi mvura uye isingakwiri mumaguta mazhinji munyika yangu yave ichikosheswa nevanhu. Guruu rine hutano uye rinovaka rinogadzirwa neacetalizing polyvinyl alcohol uye formaldehyde. Saka, chinhu ichi chinobviswa zvishoma nezvishoma nevanhu, uye zvigadzirwa zve cellulose ether zvinoshandiswa kutsiva chinhu ichi. Kureva kuti, pakugadzira zvinhu zvekuvaka zvine hushamwari nezvakatipoteredza, cellulose ndiyo chete chinhu ichi. Muputty isingapindi mvura, yakakamurwa kuita mhando mbiri: putty yeupfu hwakaoma uye putty paste. Pakati pemhando mbiri idzi dzeputty, methyl cellulose yakagadziriswa uye hydroxypropyl methyl inofanira kusarudzwa. Hunhu hwe viscosity hunowanzova pakati pe30000-60000cps. Mabasa makuru e cellulose muputty kuchengetedza mvura, kubatana uye lubrication. Sezvo maformula eputty evagadziri vakasiyana akasiyana, mamwe igrey calcium, light calcium, white cement, nezvimwewo, uye mamwe igypsum powder, grey calcium, light calcium, nezvimwewo, saka matsananguriro, viscosity uye kupinda kwecellulose mumaformula maviri akasiyanawo. Huwandu hwakawedzerwa hunenge 2‰-3‰. Mukuvaka madziro eputty yekukwenya madziro, sezvo pasi pemadziro paine mwero wakati wekukwenya mvura (mwero wekukwenya mvura wemadziro ezvidhinha i13%, uye mwero wekukwenya mvura wekongiri i3-5%), pamwe chete nekubuda kwemvura kwenyika yekunze, 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 yeash yakakoshawo zvikuru. Nekuda kwekukwenya kwakanyanya kwecellulose, kubhururuka kweputty kunowedzerwawo, uye chiitiko chekudzika panguva yekuvaka chinodziviswawo, uye chinonyaradza uye chinochengetedza basa mushure mekukwenya. Zviri nyore kuwedzera cellulose ether mupowder putty. Kugadzirwa kwayo uye kushandiswa kwayo zviri nyore. Filler nezvimwe zvinowedzerwa zvinogona kusanganiswa zvakaenzana mudry powder.
3. Dura rekongiri: Mudura rekongiri, kuti riwane simba guru, simende inofanira kunge yakanyoroveswa zvizere. Kunyanya mukuvakwa kwezhizha, dura rekongiri rinorasikirwa nemvura nekukurumidza, uye zviyero zvekunyoroveswa zvakakwana zvinoshandiswa kuchengetedza nekusasa mvura. Nzira yekutanga ndeyekukonzera kutambisa zviwanikwa zvemvura uye kushanda kusina kunaka. Chinhu chikuru ndechekuti mvura iri pamusoro chete, uye kunyoroveswa kwemukati hakusati kwakwana. Saka, mhinduro yedambudziko iri ndeyekuwedzera zvinhu zvisere zvinochengetedza mvura mudura rekongiri. Kazhinji, hydroxypropyl inosarudzwa. 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 mudura rekongiri ndeyekusanganisa upfu hwakaoma zvakaenzana wodurura mumvura.
4. Mukupurasita gypsum, bonding gypsum, uye caulking gypsum: Nekukura kuri kuita indasitiri yekuvaka nekukurumidza, kudiwa kwevanhu kwezvinhu zvitsva zvekuvaka kuri kuwedzerawo. Nekuda kwekuwedzera kwekuziva kwevanhu nezvekuchengetedzwa kwezvakatipoteredza uye kuvandudzwa kuri kuramba kuchienderera mberi kwekushanda zvakanaka kwekuvaka, zvinhu zvesimende Zvigadzirwa zveGypsum zvave kugadzirwa nekukurumidza. Parizvino, zvigadzirwa zvegypsum zvakajairika iplastering gypsum, bonding gypsum, inlaid gypsum, uye tile adhesive. Plastering gypsum ipurasitiki yemhando yepamusoro yemadziro nedenga remukati. Rusvingo rwakaputirwa 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 imugero wekuzadza pakati pemabhodhi egypsum uye muchina wekugadzirisa madziro nemakomba. Izvi zvigadzirwa zvegypsum zvine mabasa akasiyana-siyana. Pamusoro pebasa regypsum nezvimwe zvinozadza 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 kwemafuta. Zvisinei, hazvigoneke kuvimba ne cellulose ether se retarder, uye zvakakosha kuwedzera citric acid retarder kuti uisanganise uye ushandise pasina kukanganisa simba rekutanga. Kuchengetwa kwemvura kunowanzo kureva kuti mvura yakawanda sei icharasika zvakasikwa pasina kunwa mvura yekunze. Kana madziro akaoma zvakanyanya, kunyudzwa kwemvura uye kupwanyika kwemvura pasi kuchaita kuti chinhu chacho chirasikirwe nemvura nekukurumidza, uye kutsemuka nekupwanyika kuchaitikawo. Nzira iyi yekushandisa inosanganiswa neupfu hwakaoma. Kana ukagadzira mhinduro, ndapota tarisa nzira yekugadzirira mhinduro.
5. Mudziyo wekudzivirira kupisa Mudziyo wekudzivirira kupisa rudzi rutsva rwezvinhu zvinodzivirira kupisa mukati memadziro munzvimbo yekuchamhembe. Imidziyo yekudzivirira kupisa yakagadzirwa nezvinhu zvinodzivirira kupisa, mudziyo wekudzivirira kupisa 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. Mushonga wekubatanidza Sarudza HPNC 20,000 cps semushonga wekubatanidza, sarudza 60,000 cps kana kupfuura semushonga wekubatanidza mataira, uye tarisa pane mushonga wekukora mumushonga wekubatanidza, izvo zvinogona kuvandudza simba rekusunga uye simba rekudzivirira museve. Inoshandiswa semushonga unochengetedza mvura mukubatanidza mataira kudzivirira mataira kuti asakurumidza kupera mvura uye kudonha.
Nguva yekutumira: Kukadzi-18-2023