Basa uye kushandiswa kwe cellulose ether

Basa uye kushandiswa kwe cellulose ether

Cellulose etherisiri-ionic semi-synthetic polymer, inonyungudika mumvura uye inonyungudutsa mbiri, mumaindasitiri akasiyana anokonzerwa nebasa akasiyana, senge mumakemikari ekuvaka zvinhu, ane mubatanidzwa mhedzisiro: ① mvura inochengetedza mumiriri ② thickening agent ③ kuyera ④ kugadzira firimu ⑤ binder; MuPVC indasitiri, iri emulsifier, dispersant; Muindasitiri yemishonga, imhando yebhainda uye inononoka kuburitsa skeleton zvinhu, nekuti cellulose ine zvakasiyana-siyana zvinoumba mhedzisiro, saka ndiyo inonyanya kushandiswa ndima. Pasi apa ndinotarisa kushandiswa kwe cellulose ether mune zvakasiyana-siyana zvekuvaka uye basa.

1, latex pendi:

Mumutsara wepende ye latex, kusarudzahydroxyethyl cellulose, iyo yakajairika yekumisikidza viscosity ndeye RT3000-50000cps, inoenderana neHBR250 yakatarwa, iyo referensi dosage kazhinji 1.5 ‰-2‰. 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 kwekugadzirisa kwekuvaka: Hydroxyethyl cellulose iri nyore kushandisa, zvose mvura inotonhora uye inopisa inogona kunyungudutswa, uye haina kukanganiswa nePH kukosha. Inogona kushandiswa zvakachengeteka pakati pePI kukosha 2 uye 12. Nzira dzekushandisa dzinotevera:

I. Wedzera zvakananga:

Kune iyi nzira, kunonoka hydroxyethyl cellulose ine nguva yekuparara kweanopfuura maminitsi makumi matatu inofanira kusarudzwa. Maitiro acho ndeaya anotevera: (1) kuve nepamusoro kunofanira kucheka blender mudziyo kuwanda mvura yakachena (2) simba remukati revanhu rakatanga kusanganisa-kumhanya-mhanya, yunifomu yehydroxyethyl zvishoma nezvishoma panguva imwe chete kuti vabatane mumhinduro ye (3) ramba uchikurudzira kusvikira zvinhu zvose zvakanyorova zvegranular (4) kuti ubatanidze zvimwe zvinowedzera uye alkaline additives (5) fambisa kusvikira yanyunguduka zvachose hydroxyethyl yose, wedzera zvimwe zvikamu zvemushonga, uchikuya kune chigadzirwa chapera.

ⅱ. Akashongedzerwa nedoro raamai:

Iyi nzira inogona kusarudza yekutsanya - soluble cellulose, uye ine mildew - proof effect. Kubatsira kweiyi nzira ndeyekuti ine yakanyanya kuchinjika uye inogona kuwedzerwa zvakananga Mu latex pendi, nzira yekugadzirira yakafanana ne ①-④ matanho.

ⅲ, ine porridge yekushandisa:

Sezvo organic solvents ari urombo solvents (insoluble) nokuda hydroxyethyl, anogona kushandiswa kugadzira porridge. Iyo inonyanya kushandiswa organic solvents ndeye organic zvinwiwa mu latex pendi magadzirirwo, senge ethylene glycol, propylene glycol uye mafirimu ekugadzira ma agents (akadai sediethylene glycol butyl acetate), porridge hydroxyethyl cellulose inogona kuwedzerwa zvakananga kupende, mushure mekuwedzera, ramba uchikurunga kusvikira yapera zvachose.

2, kukwenya madziro mune putty:

Parizvino, China iri mune yakawanda yeguta rekudzivirira kwemvura, kuramba swab yekuchengetedzwa kwezvakatipoteredza putty kwakatorwa zvakanyanya nevanhu, mumakore mashoma apfuura, nekuti iyo putty yakagadzirwa nekuvaka glue inovhenekera formaldehyde gasi kukuvadza kune hutano hwevanhu, chivakwa. glue inogadzirwa ne polyvinyl doro uye formaldehyde acetal reaction. Saka chinhu ichi chinopedzwa zvishoma nezvishoma nevanhu, uye kutsiviwa kwechinhu ichi ndeye cellulose ether yakatevedzana yezvigadzirwa, ndiko kuti, kuvandudzwa kwekuchengetedzwa kwezvakatipoteredza zvekuvakisa, cellulose ndiyo chete mhando yezvinhu parizvino.

Mumvura inodzivirira putty yakakamurwa kuita yakaoma poda putty uye putty paste marudzi maviri, iwo marudzi maviri eputty anowanzo sarudza modified methyl cellulose uye hydroxypropyl methyl marudzi maviri, viscosity specification inowanzo mu 3000-60000cps pakati pezvakakodzera, mubasa guru re cellulose mu putty kuchengetedza mvura, kubatanidza, lubrication uye zvimwe zvinokonzeresa.

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, nezvimwewo, saka iyo speciation viscosity uye infiltration yehuwandu hwe cellulose yemafomu maviri aya. hazvina kufanana, huwandu hwekuwedzera ndeye 2 ‰ -3 ‰ kana zvakadaro.

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 kunaka kwekuzadza zvinhu, kunyanya kunaka kwegrey calcium kwakakoshawo zvakanyanya. Nekuda kweiyo high viscosity ye cellulose, inowedzerawo buoyancy ye putty, uye inodzivirira chiitiko chekuyerera ichirembera mukuvaka, uye inonyanya kugadzikana uye kuponesa basa mushure mekukwesha.

Muupfu putty, cellulose ether inofanirwa kuwedzerwa zvakakodzera kune fekitori poindi, kugadzirwa kwayo, kushandiswa kuri nyore, kuzadza zvinhu uye yekubatsira yakaoma poda inogona kusanganiswa zvakaenzana, kuvaka kuri nyore, nzvimbo yekugovera mvura, yakawanda sei nemari yakawanda. 

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 kusingafadzi, kiyi ingori pamusoro, mvura uye hydration haisati yakwana, saka nzira dzekugadzirisa dambudziko iri, Wedzera masere masere ekuchengetedza mvura agent cellulose mudhaka kongiri kusarudza hydroxypropyl methyl kana methyl cellulose, viscosity yakatarwa mu20000- 60000cps pakati, wedzera 2% -3%. Inenge, iyo mvura yekuchengetedza mwero inogona kuwedzerwa kusvika kune anopfuura 85%, mudhaka kongiri yekushandisa nzira yeupfu yakaoma yakaenzana yakasanganiswa mushure memuromo mumvura inogona kuva.

4, pendi gypsum, bonding gypsum, caulking gypsum:

Nekukurumidza kusimukira kweindasitiri yekuvaka, kudiwa kwevanhu kwezvinhu zvitsva zvekuvaka kuri kuwedzerawo zuva nezuva, nekuda kwekuwedzera kwekuziva kwevanhu nezvekuchengetedzwa kwezvakatipoteredza uye kuenderera mberi kwekuvandudzwa kwehunyanzvi hwekuvaka, zvigadzirwa zvesimende zvegypsum zvave kukurumidza kukura. Parizvino iyo commonnest gesso goods ine stucco gesso, caking gesso, set gesso, tile caking agent yekumirira.

Plastering plaster imhando yemhando yakanaka yemukati madziro uye denga plastering zvinhu, nazvo pukuta madziro akatetepa uye akatsetseka, usadonhedze hupfu uye base bond zvakasimba, hapana kuputika kwechiitiko, uye ine basa rekudzivirira moto; Adhesive gypsum imhando nyowani yekuvaka mwenje bhodhi rinonamira, gypsum sechinhu chepasi, pamwe nemhando dzakasiyana dzekuwedzera simba remuromo mumiriri wakagadzirwa neadhesive material, inokodzera marudzi ese ezvivakwa zvekuvaka madziro pakati pechisungo, chisina-chepfu. , isina kunaka, simba rekutanga rinokurumidza kugadzika, kusungirirana ibhodhi rekuvaka, bhuroka rekuvaka rinotsigira zvinhu; Gypsum seam inozadza mumiriri ndeye gypsum ndiro pakati peiyo gap yekuzadza zvinhu uye madziro, kupaza kugadzirisa kuzadza.

Izvi zvigadzirwa zvegypsum zvine huwandu hwemabasa akasiyana, kuwedzera kune gypsum uye zvine hukama mafirita kuita basa, nyaya yakakosha ndeye yakawedzera cellulose ether additives inoita basa rinotungamira. Nekuti gesso yakakamurwa ine isina mvura gesso uye sendi yehafu yemvura gesso, gesso yakasiyana yakasiyana nekuita kwechigadzirwa, wedzera gobvu, chengetedza mvura, unonoke coagulate kunaka kunosarudza gesso zvekuvakisa. Dambudziko rinowanzoitika rezvishandiso izvi igubhu rinoputika, simba rekutanga harina kusvika, kugadzirisa dambudziko iri, nderekusarudza rudzi rweselulosi uye retarder komputa yekushandisa nzira dambudziko, mune izvi, sarudzo yakajairika yemethyl kana hydroxypropyl methyl. 30000-60000cps, kuwedzera huwandu 1.5% - 2%. Pakati, iyo yakatarisana ne cellulose ndeye kuchengetedza mvura uye inononoka condensation lubrication.

Zvisinei, mune izvi kuvimba cellulose eteri sezvo retarder haina kusvika, inofanirawo kuwedzera citric acid retarder mushure mekushandiswa kwakavhenganiswa hakuzokanganisa simba rekutanga.

Mwero wekuchengetedza mvura kazhinji unoreva kuwanda kwekurasikirwa kwemvura kwechisikigo mukushaikwa kwekutorwa kwemvura kunze. Kana madziro akaoma, hwaro hwepamusoro hunotora mvura uye kubuda kwechisikigo kunoita kuti zvinhu zvirasikirwe nemvura nekukurumidza, uye pachavawo nedhiramu isina chinhu uye chiitiko chinoputika.

Iyi nzira yekushandiswa ndeyekusanganisa poda yakaoma, kana kugadzirira kwekugadzirisa kunogona kureva nzira yekugadzirira yekugadzirisa.

5, dhaka rekudzivirira

Thermal insulation mortar imhando nyowani yemukati madziro emafuta ekudzivirira zvinhu kuchamhembe kweChina. Icho chinhu chemadziro chakagadzirwa ne thermal insulation material, dhaka uye binder. Mune ino chinyorwa, cellulose inoita basa rakakosha mukubatanidza uye kuwedzera simba. Kazhinji, methyl cellulose ine high viscosity (inenge 10,000 CPS) inosarudzwa, uye iyo dosage inowanzo pakati pe2 ‰ ne3 ‰. Iyo yakaoma poda yekusanganisa nzira inoshandiswa.

6, interface mumiririri

Iyo interface mumiriri ndeye HPMC20000cps, tile binder inopfuura 60000cps, uye iyo interface mumiriri inonyanya kushandiswa seyakakora, iyo inogona kuvandudza simba rekusimba uye simba remuseve.