Focus on Cellulose ethers

Kushandiswa kwe cellulose ether mune zvakatipoteredza zvekuvaka zvinhu

Cellulose ether imhando ye-non-ionic semi-synthetic polymer, ine kunyungudika kwemvura uye kunyungudika kwemhando mbiri, mumaindasitiri akasiyana anokonzerwa nebasa akasiyana, senge mune zvekuvaka makemikari, ine zvinotevera zvinoumbwa mhedzisiro: ① mvura inochengeta. mumiririri ② kukora mumiririri ③ kuenzana ④ firimu kuumbwa ⑤ binder; Mune polyvinyl chloride indasitiri, iri emulsifier, dispersant; Muindasitiri yemishonga, imhando yebhainda uye inononoka uye inodzorwa kuburitsa skeleton zvinhu, nekuti cellulose ine zvakasiyana-siyana zvinoumba mhedzisiro, saka ndiyo inonyanya kushandiswa ndima. Pano ini ndinotarisa kushandiswa kwe cellulose ether mukuchengetedzwa kwezvakatipoteredza kuvaka zvinhu uye basa.
1, latex pendi

Mune LATEX pendi mutsara, vanoda KUSARUDZA hydroxyethyl cellulose, iyo yakajairika yekumisikidza viscosity ndeye RT30000- 50000CPS, iyo yereferensi chiyero kazhinji 1.5 ‰-2 ‰ kuruboshwe uye kurudyi mativi. Basa guru re hydroxyethyl mu latex pendi ndere kukora, kudzivirira pigment gelation, kubatsira mukupararira kwe pigment, latex, kugadzikana, uye inogona kuvandudza viscosity yezvikamu, inobatsira pakuita kwekuita kwekuvaka: Hydroxyethyl cellulose iri nyore kushandisa, kutonhora. uye mvura inopisa inogona kunyungudutswa, uye haina kukanganiswa nePH kukosha, pakati pePH 2 ne12 inogona kushandiswa, kushandiswa kweiyi nzira nhatu dzinotevera:

I. Wedzera zvakananga:
Iyi nzira inofanira kusarudza hydroxyethyl cellulose inononoka mhando - yakanyungudika nguva inopfuura 30 maminetsi ehydroxyethyl cellulose, matanho ekushandisa ayo ndeaya anotevera: (1) kuve nepamusoro anofanira kucheka blender mudziyo uye yakawanda yakachena mvura (2) vanhu vakatanga kunonoka kubvongodza nguva dzose. , panguva imwe chete zvishoma nezvishoma wedzera hydroxyethyl zvakaenzana kumushonga we (3) ramba uchimutsa kusvikira zvinhu zvose zvakanyorova zvegranular (4) kubatanidza zvimwe zvinowedzera uye alkaline additives (5) kurunga kusvikira yanyunguduka zvachose hydroxyethyl, wedzera zvimwe zvikamu zveformula. , kukuya kune chigadzirwa chakapedzwa.

ⅱ, ine doro raamai rakamirira:
Iyi nzira inogona kusarudza pakarepo mhando, uye ine mildew - proof effect ye cellulose. Iyi nzira ine mukana wekuchinja kukuru, inogona kuwedzerwa zvakananga kune latex pendi, nzira yekugadzirira yakafanana ne ①- ④ matanho.

ⅲ. Shumira ne porridge:
Nekuti organic zvinonyungudutsa hazvidiwe (hazvinyunguriki) kune hydroxyethyl, zvinogona kushandiswa kugadzira porridge. CHINONYANYA KUSHANDISA ORGANIC SOLVENT NDIYO RIQUID IRI MULATEX PAINT FORMULA, IVA SEGLYCOL, PROPYLENE GLYCOL UYE FILM-forming AGEN (KUFANANA NEDIETHYLENE glycol butyl acetic acid GREASE), CELLULOSE YEHYDROXAFTERRIE , DIETHYLENE glycol acetic acid INING UCHIRAMBA UCHINYANYA KUNYANYA KUNYANYA KUZOBVA PANO.

2, kukwenya madziro putty

Parizvino, iyo yekuchengetedzwa kwezvakatipoteredza mhando putty, iyo isingaite mvura uye isingakweshe mumaguta mazhinji, yakatariswa nevanhu zvakanyanya. Mumakore mashoma apfuura, nekuti iyo putty yakagadzirwa nekuvaka glue inopenya gasi re formaldehyde kukuvadza hutano hwevanhu, glue yekuvaka inogadzirwa ne polyvinyl doro uye formaldehyde yeacetal reaction. Naizvozvo, chinhu ichi chinopedzwa zvishoma nezvishoma nevanhu, uye kutsiviwa kwechinhu ichi ndeye cellulose ether yakatevedzana zvigadzirwa, ndiko kuti, kuvandudzwa kwekuchengetedza kwezvakatipoteredza zvekuvakisa, cellulose ndiyo chete mhando yezvinhu.

Mumvura inodzivirira putty yakakamurwa kuita marudzi maviri ehupfu hwakaoma putty uye putty paste, idzi mbiri mhando dzeputty dzinowanzoda kusarudza yakagadziridzwa methyl cellulose uye hydroxypropyl methyl marudzi maviri, viscosity yakatarwa kazhinji iri pakati pe3000-60000CPS yakanyanya kufanira, iyo huru. basa re cellulose mu putty kuchengetedza mvura, bonding, lubrication, nezvimwe.

Nekuti iyo putty formula yemugadziri wega wega haina kufanana, mamwe ari grey calcium, light calcium, chena simende, mamwe ari gypsum powder, grey calcium, light calcium, saka iyo speciation viscosity uye kupinza cellulose yemafomu maviri aya haana kufanana. , huwandu hwekuwedzera hwekuwedzera hunenge 2 ‰-3 ‰.

Mukubhowa madziro kuve nekufinhwa nekuvaka kwevana, chigadziko chemadziro chine zvimwe zvinonyudza (madziro ezvidhina eiyo bibulous rate yaive 13%, kongiri iri 3-5%), pamwe nekubuda kwemhepo yekunze, saka kana uchifinhwa nemwana. kurasikirwa kwemvura nekukurumidza, kwaizotungamira mukutsemuka kana chiitiko chakadai semukume, kuitira kuti simba reputty ripere simba, saka, mushure mekujoinha cellulose ether ichagadzirisa dambudziko iri. Asi mhando yekuzadza, kunyanya calcium ash, yakakoshawo zvakanyanya. Nekuda kweiyo high viscosity ye cellulose, inowedzerawo simba rinoyangarara reputty, uye inodzivirira chiitiko chekuyerera ichirembera mukuvaka, uye inova yakasununguka uye inochengetedza basa mushure mekukwesha.

3, dhaka rekongiri
Mune dhaka rekongiri, rinowana simba rekupedzisira, rinofanira kuita kuti simende hydration iite zvachose, kunyanya muzhizha, mukuvakwa kwekongiri yedhaka kurasikirwa kwemvura nekukurumidza, matanho akazara hydrated pakurapa mvura, nzira iyi kutambisa chitubu chemvura uye. kushanda kusingaite, kiyi iri pamusoro, mvura uye hydration haisati yakwana, saka nzira dzekugadzirisa dambudziko iri, Mudhaka kongiri kazhinji sarudza kuwedzera hydroxypropyl methyl cellulose kana methyl cellulose, viscosity yakatarwa pakati pe20000-60000CPS, wedzera. anenge 2 ‰–3 ‰, mvura yekuchengetedza mwero inogona kuwedzerwa kusvika kupfuura 85%, kushandiswa kwedhaka kongiri yehupfu yakaoma yakaenzana yakasanganiswa mushure mekuwedzera mvura inogona kuva.

4, pendi gypsum, adhesive gypsum, caulking gypsum

Nekukurumidza kukura kweindasitiri yekuvaka, kudiwa kwevanhu kwezvinhu zvitsva zvekuvaka kuri kuwedzerawo zuva nezuva, nekuda kwekuwedzera kwekuziva kwevanhu nezvekuchengetedzwa kwezvakatipoteredza uye kuenderera mberi kwekuvandudzwa kwehunyanzvi hwekuvaka, simende zvigadzirwa zvegypsum zvakakurumidza kuvandudzwa. Parizvino zvigadzirwa zvegypsum zvakajairika zvine stucco gypsum, bonded gypsum, embedded gypsum, tile binder.
Stucco plaster imhando yemhando yakanaka yemukati madziro uye denga plastering zvinhu, nazvo kupukuta madziro akapfava uye akatsetseka, kwete upfu, chisungo chakasimba nechigadziko, hapana kuputika kwechiitiko, uye ine basa rekudzivirira moto; Adhesive gypsum imhando nyowani yekuvaka mwenje ndiro binder, iri gypsum sechinhu chepasi, ichiwedzera zvakasiyana-siyana zvekuwedzera uye yakagadzirwa neadhesive material, inokodzera marudzi ese ezvivakwa zvekuvaka madziro pakati pechisungo, chisina-chepfu, isingaravike, simba rekutanga rinokurumidza kugadzika, kubatana uye humwe hunhu, ndiro bhodhi rekuvaka, block kuvaka kutsigira zvinhu; Gypsum sealant ndiyo inozadza iyo gap pakati pemapuleti egypsum uye kugadzirisa kwemadziro nekutsemuka.
Izvi zvigadzirwa zvegypsum zvine huwandu hwemabasa akasiyana, kuwedzera kune gypsum uye zvinoenderana nemafirita anoita basa, nyaya yakakosha ndeyekuti yakawedzera cellulose ether additives inoita basa rinotungamira. Nekuti GESSO YAKAMURWA MUCENT YEANHYDROUS GESSO UYE HEMIHYDRATE GESSO, AKASIYANA GESSO EFFECT AKASIYANA NEKUITA KWECHIBIKO, KUTI KUKORA, KUCHENGETA MVURA, KUNONOGONA KUITA KUSARUDZA HUNHU HWEGESSOLSABUILITY. Dambudziko rakajairika rezvishandiso izvi igubhu risina kuputika, simba rekutanga harisi kusvika padambudziko iri, kugadzirisa dambudziko iri, nderekusarudza rudzi rweselulosi uye retarder komputa yekushandisa nzira dambudziko, mune izvi, iyo yakajairika sarudzo yemethyl kana. hydroxypropyl methyl cellulose HPMC 30000– 60000CPS, wedzera pakati pe 1.5 ‰–2 ‰, selulosi kubva pakutarisa ndiko kuchengetedza mvura kudzoreredza lubrication.

Zvisinei, muchiitiko ichi, hazvibviri kuvimba ne cellulose ether se retarder, uye citric acid retarder inofanira kuwedzerwa kumusanganiswa kuitira kuti simba rekutanga rirege kuchinjwa.
Mwero wekuchengetedza mvura kazhinji unoreva huwandu hwekurasika kwemvura chaiyo pasina kutorwa kwemvura kunze. Kana madziro akaoma, kunyura kwemvura kwepasi uye kubuda kwechisikigo kunoita kuti zvinhu zvirasikirwe nemvura nekukasira, uye pachave paine chigubhu chisina chinhu uye chinoputika chiitiko.
Iyi nzira yekushandisa yehupfu yakaoma yakasanganiswa kushandiswa, kana mhinduro inogona kureva nzira yekugadzirira nzira.

5. Thermal insulation mortar
Thermal insulation mortar chinhu chitsva chekuvhara madziro kuchamhembe kweChina. Icho chinhu chemadziro chakagadzirwa ne thermal insulation material, dhaka uye binder. Muchinyorwa ichi, cellulose inoita basa rakakosha mukubatanidza uye kuwedzera simba. Kazhinji, methyl cellulose ine yakakwira viscosity (inenge 10000cps) inosarudzwa, uye iyo dosi kazhinji iri pakati pe2 ‰ ne3 ‰. Iyo nzira ndiyo yakaoma poda yekusanganisa nzira.

6, interface mumiririri
Interface agent sarudzo HPMC20000cps, tile binder kusarudzwa kweanopfuura 60000CPS, mune interface mumiriri anotarisa pane thickening mumiririri, anogona kuvandudza simba rekusimba uye museve simba uye zvimwe zvinokonzeresa.


Nguva yekutumira: Aug-30-2022
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