Cellulose ether imhando isiri-ionic semi-synthetic yakakwira molecular polymer. Iine marudzi maviri emvura-soluble uye solvent-based properties. Iine maitiro akasiyana mumaindasitiri akasiyana. Semuyenzaniso, muzvigadzirwa zvekuvaka makemikari, ine zvinotevera zvinoumbwa zvinokonzeresa: ①Mvura-inochengetedza ②Thickener ③Leveling ④Film-forming ⑤Binder; muPVC indasitiri, iri emulsifier uye dispersant; muindasitiri yemishonga, inosunga uye Nekuti cellulose ine zvakasiyana-siyana zvinosanganiswa mhedzisiro, zvakare ndiyo inonyanya kushandiswa. Pazasi ini ndichatarisa nezve kushandiswa uye kushanda kwe cellulose ethers mune zvakatipoteredza zvine hushamwari zvekuvaka.
1. Mu latex pendi
Muindasitiri yependi ye latex, hydroxyethyl cellulose inofanira kusarudzwa. Iyo yakajairika yekumisikidza viscosity ndeye RT30000-50000cps, uye iyo referensi dosage inowanzoita 1.5 ‰-2 ‰. Basa guru re hydroxyethyl mu latex pendi ndere kukora, kudzivirira pigment gelation, kubatsira pigment dispersion, latex, uye kugadzikana, uye inogona kuvandudza viscosity yezvikamu uye kubatsira mukuyera kuita kwekuvaka: Hydroxyethyl Ethyl cellulose iri nyore kushandisa. Inogona kunyungudutswa mumvura inotonhora nemvura inopisa, uye haina kukanganiswa neiyo pH kukosha. Inogona kushandiswa pakati pe pH kukosha kwe2 ne12. Pane nzira nhatu dzinotevera:
I. Wedzera zvakananga mukugadzirwa:
Iyi nzira inofanira kusarudza hydroxyethyl cellulose yakanonoka mhando - hydroxyethyl cellulose ine nguva yekuparara inopfuura maminitsi makumi matatu. Matanho ekushandisa ndeaya anotevera: ① Wedzera imwe huwandu hwemvura yakachena mumudziyo une high-shear agitator ② Tanga kubvongodza uchienderera nekumhanya kwakaderera, uye panguva imwechete zvishoma nezvishoma uye zvakaenzana wedzera boka rehydroxyethyl mumhinduro ③ Ramba uchimutsa. kusvikira zvinhu zvese zvegranular zvanyikwa ④ Wedzera zvimwe zvinowedzera uye alkaline additives, nezvimwewo ⑤ Svidza kusvika zvese Mapoka ehydroxyethyl akanyungudika zvachose, Wedzera zvimwe zvakasara muresipi uye geya kusvika wapedza.
Ⅱ. Akashongedzerwa nedoro raamai:
Iyi nzira inogona kusarudza pakarepo mhando, uye ine mhedzisiro ye-anti-mildew cellulose. Kubatsira kweiyi nzira ndeyokuti ine kushanduka kukuru uye inogona kuwedzerwa zvakananga kune latex pendi. Nzira yekugadzirira yakafanana nematanho e ①–④.
Ⅲ. Nekugadzira porridge-senge zvivakwa:
Sezvo organic solvents ari urombo zvinonyungudutsa (insoluble) kumapoka ehydroxyethyl, porridges inogona kugadzirwa nezvinonyungudutsa izvi. Iyo inonyanya kushandiswa organic solvents ndeye organic zvinwiwa mulatex pendi maumbirwo, akadai seethylene glycol, propylene glycol uye mafirimu ekare (akadai sediethylene glycol butyl acetate). Iyo porridge hydroxyethyl cellulose inogona kuwedzerwa zvakananga kupende. Ramba uchikurudzira kusvikira yapera zvachose.
2, kukwenya madziro putty
Parizvino, ine hushamwari hwezvakatipoteredza putty isingaite mvura uye isingakweshe mumaguta mazhinji munyika yangu yakakosheswa nevanhu. Mumakore mashoma apfuura, nekuti putty yakagadzirwa neglue yekuvaka inoburitsa formaldehyde gasi uye ichikuvadza hutano hwevanhu, glue yekuvaka inogadzirwa nepolymer Inogadzirwa neacetal reaction yevinyl doro uye formaldehyde. Nokudaro, chinhu ichi chinopedzwa zvishoma nezvishoma nevanhu, uye zvigadzirwa zve cellulose ether zvinotsiviwa nechinhu ichi, ndiko kuti, kugadzirwa kwezvinhu zvakatipoteredza zvekuvaka, cellulose ndiyo chete zvinhu panguva ino.
Mumvura inodzivirira putty, inoparadzaniswa kuva yakaoma poda putty uye putty paste. Pakati pemhando mbiri idzi dzeputty, yakagadziridzwa methyl cellulose uye hydroxypropyl methyl inowanzosarudzwa. Iyo viscosity yakatarwa kazhinji iri pakati pe30000-60000cps. Basa guru re cellulose mu putty kuchengetedza mvura, kusungirirana uye lubrication.
Sezvo maputty evagadziri akasiyana akasiyana, mamwe ari grey calcium, light calcium, white simenti, nezvimwewo, uye mamwe ari gypsum powder, grey calcium, light calcium, nezvimwewo, saka aya maviri mafomula anosarudza cellulose yakatarwa, viscosity uye kupinda mukati. . Mari yekuwedzera inenge 2 ‰-3 ‰.
Mukuvaka kwekukwenya madziro putty, nekuti chigadziko chemadziro chine kumwe kunyura kwemvura (yero yekunyudza kwemvura yemadziro ezvidhinha ndeye 13%, uye kunyudzwa kwemvura kwekongiri ndeye 3-5%), yakasanganiswa iyo evaporation yekunze kwenyika, kana iyo putty ikarasa mvura nekukurumidza, ichaita kuti pave nekutsemuka kana kubviswa kwehupfu uye zvimwe zviitiko, zvichideredza simba re putty. Nechikonzero ichi, kuwedzera cellulose ether kuchagadzirisa dambudziko iri. Asi mhando yekuzadza, kunyanya kunaka kwe lime calcium, yakakoshawo zvakanyanya. Nekuti cellulose ine yakakwira viscosity, inowedzerawo buoyancy ye putty, inodzivirira kudonha panguva yekuvaka, uye inogadzika uye inochengetedza basa mushure mekukwesha.
3. Kongiri dhaka
Mudhaka rekongiri, kuti uwane simba rekupedzisira, simende inofanira kunge yakanyatso hydrated, kunyanya mukuvaka kwezhizha, dhaka rekongiri rinorasikirwa nemvura nekukurumidza, uye zviyero zve hydration yakakwana inotorwa kuchengetedza uye kumwaya mvura. Kuparara kwezviwanikwa uye kushanda kusina kunaka, chinhu chinokosha ndechokuti mvura iri pamusoro chete, uye hydration yemukati ichiri isina kukwana, saka mhinduro yedambudziko iri ndeyokuwedzera hydroxypropyl methyl cellulose kana methyl cellulose kune dhaka rekrete. Iyo viscosity yakatarwa iri pakati pe20000-60000cps, iyo yekuwedzera mari inenge 2 ‰-3 ‰, uye chiyero chekuchengetedza mvura chinogona kuwedzerwa kusvika kupfuura 85%. Nzira yekushandisa mudhaka kongiri ndeyekusanganisa hupfu hwakaoma zvakaenzana uye wobva wawedzera mvura.
4. Mukupura plaster, bonding plaster uye caulking plaster
Nekukurumidza kusimukira kweindasitiri yekuvaka, kudiwa kwevanhu kwezvinhu zvitsva zvekuvaka kuri kuwedzerawo zuva nezuva. Nekuda kwekuwedzera kwekuziva kwevanhu nezvekuchengetedzwa kwezvakatipoteredza uye nekuenderera mberi kwekuvandudzwa kwekuvaka, zvigadzirwa zve cementitious gypsum zvakakura nekukurumidza. Parizvino, zvigadzirwa zvegypsum zvakanyanya kupurasita gypsum, bonding gypsum, inlaying gypsum, tile adhesive uye zvichingodaro.
Stucco plaster imhando yemhando yepamusoro yekupurasita zvinhu zvemukati madziro uye matenga. Madziro akaputirwa nawo akanaka uye akatsetseka, usadonhedze hupfu, sunga zvakasimba kune substrate, hauna kuputika uye kudonha, uye kuva nekudzivirira moto; bonding plaster imhando yepurasita. Rudzi rutsva rwekuvaka mwenje bhodhi rinonamira chinhu chinonamira chakagadzirwa negypsum sechinhu chekutanga uye kuwedzera zvakasiyana-siyana zvinowedzera. Iyo yakakodzera kusungirirana pakati peakasiyana inorganic kuvaka madziro zvinhu. Haisi-chepfu, haina kunaka, Iine hunhu hwesimba rekutanga, kukurumidza kugadzika uye yakasimba chisungo, uye chinhu chinotsigira kuvaka kwemapuranga ekuvaka uye zvidhinha;
Izvi zvigadzirwa zvegypsum zvine mutsara wemabasa akasiyana, kuwedzera kune basa regypsum uye zvinoenderana nemafirita, nyaya yakakosha ndeyekuti iyo yakawedzera cellulose ether yekubatsira inoita basa rinotungamira. Sezvo gypsum yakakamurwa kuita anhydrite uye hemihydrate gypsum, gypsum yakasiyana ine mhedzisiro yakasiyana pakuita kwechigadzirwa, saka kukora, kuchengetwa kwemvura uye kudzoreredza kunotarisisa kunaka kwezvinhu zvekuvaka gypsum. Dambudziko rinowanzoitika rezvinhu izvi kuputika kwegomba, uye simba rekutanga harigoni kusvika. Kugadzirisa dambudziko iri, idambudziko rekusarudza rudzi rwe cellulose uye iyo composite yekushandisa nzira yekudzoreredza. Panyaya iyi, methyl kana hydroxypropyl methyl 30000 inowanzosarudzwa. -60000cps, huwandu hwekuwedzera huri pakati pe 1.5 ‰ -2 ‰, chinangwa che cellulose kuchengetedza mvura, kunonoka uye mafuta.
Zvisinei, hazvibviri kuvimba ne cellulose ether se retarder, uye zvakakosha kuwedzera citric acid retarder kusanganisa uye kuishandisa kuitira kuti simba rekutanga rirege kukanganiswa.
Mwero wekuchengetedza mvura kazhinji unoreva kurasikirwa kwechisikigo kwemvura mukushaikwa kwekutorwa kwemvura kunze. Kana madziro akaoma kwazvo, kunyura kwemvura uye kubuda kwechisikigo pachigadziko kuchaita kuti zvinhu zvirasikirwe nemvura nekukasira, uye kuputika nekutsemuka kuchaitika zvakare.
Iyi nzira yekushandiswa inosanganiswa nehupfu hwakaoma. Kana mhinduro yakagadziriswa, tapota tarisa kune nzira yekugadzirira yemhinduro.
5. Insulation mortar
Thermal insulation mortar imhando nyowani yemukati madziro ekudzivirira kupisa zvinhu mudunhu rekuchamhembe. Icho chinhu chemadziro chinoumbwa ne thermal insulation material, dhaka uye binder. Mune ino chinyorwa, cellulose inoita basa rakakosha mukubatanidza uye kuwedzera simba. Kazhinji sarudza methyl cellulose ine yakakwira viscosity (inenge 10000eps), iyo dosage inowanzo pakati pe2 ‰ -3 ‰), uye nzira yekushandisa ndiyo yakaoma poda yekusanganisa nzira.
6. Interface agent
Iyo interface mumiriri ndeye HPNC20000cps, uye inonamira mataira inopfuura 60000cps. Mune iyo interface agent, inonyanya kushandiswa seyakakora, iyo inogona kuvandudza kusimba kwesimba uye museve kuramba.
Nguva yekutumira: Nov-02-2022