Focus on Cellulose ethers

Akagadzirira-akasanganiswa dhaka ekuwedzera anovandudza sei kuita kwedhaka?

Zviwedzeredzo zvakagadziridzwa senge zvakagadzirirwa-yakasanganiswa dhaka additives, cellulose ether, coagulation regulator, redispersible latex poda, air-entraining agent, yekutanga simba mumiriri, inoderedza mvura uye zvimwe zvakagadziridzwa zvinowedzerwa zvinoenderana nezvinodiwa zvepurojekiti, iyo inovandudza zvakanyanya mashandiro. yedhaka rakagadzirwa rakagadzirwa. Zvenyama uye zvemagetsi zvivakwa.

1. Yakagadzirira-yakasanganiswa dhaka additive

Iyo anionic surfactant iri mune yakagadzirira-yakasanganiswa dhaka yekuwedzera mupurojekiti inogona kuita kuti masemende zvimedu zviparadzire mumwe nemumwe, kusunungura mvura yemahara yakavharidzirwa nesement aggregate, kuparadzira zvizere iyo yakasanganiswa simende masasi, uye izere hydrate kuti iwane compact chimiro uye. kuwedzera dhaka density. Simba, kunatsiridza kusamira, kutsemuka kuramba uye kusimba.

Iyo dhaka yakavhenganiswa neyakagadzirirwa-yakasanganiswa yedhaka additives ine yakanaka kushanda, yakakwirira yekuchengeta mvura mwero, yakasimba yakabatana simba, isiri-chepfu, isingakuvadzi, yakachengeteka uye yakatenderedza nharaunda panguva yekushanda. Yakakodzera kugadzirwa kweakajairwa masonry, kupurasita, pasi, uye dhaka risingapinde mvura mumafekitori akasanganiswa edhaka. Inoshandiswa kugadzira uye kuvaka kwekongiri yevhu zvidhinha, zvidhinha zveceramsite, zvidhinha zvisina mhango, zvidhinha zvekongiri, zvidhinha zvisina kupiswa muzvivakwa zvakasiyana siyana zveindasitiri nevagari. Kuvakwa kwemukati nekunze kwemadziro emadziro, kongiri madziro plastering, pasi uye denga rekuyera, dhaka risina mvura, nezvimwe.

2. Cellulose ether

Mune yakagadzirira-yakasanganiswa dhaka, cellulose ether ndiyo huru yekuwedzera iyo inogona zvakanyanya kuvandudza mashandiro edhaka rakanyorova uye kukanganisa kushanda kwekuvaka kwedhaka. Kusarudzwa kunonzwisisika kwema cellulose ethers emhando dzakasiyana-siyana, viscosities dzakasiyana, zvakasiyana-siyana zvidimbu, madhigirii akasiyana-siyana eviscosity uye yakawedzerwa mari ichava nemigumisiro yakanaka pakuvandudzwa kwekushanda kwevhu rakaoma dhaka.

Mukugadzirwa kwezvinhu zvekuvaka, kunyanya yakaoma poda dhaka, cellulose ether inoita basa risingadzoreki, kunyanya mukugadzirwa kwedhaka rakakosha (yakagadziridzwa dhaka), chinhu chakakosha uye chakakosha chikamu. Cellulose ether inoita basa rekuchengetedza mvura, kukora, kunonoka simende hydration simba, uye kunatsiridza mashandiro ekuvaka. Yakanaka kuchengetedza mvura inoita kuti simende hydration iwedzere kuzara, inogona kuvandudza yakanyorova viscosity yedhaka rakanyorova, kuwedzera simba rekubatanidza redhaka, uye kugadzirisa nguva. Kuwedzera cellulose ether kune mechanic yekupfapfaidza dhaka kunogona kuvandudza kupfapfaidza kana kupomba kuita uye kusimba kwechimiro chedhaka. Naizvozvo, cellulose ether iri kushandiswa zvakanyanya sechinhu chakakosha chekuwedzera mudhaka rakagadzirwa-musanganiswa.

3. Redispersible latex poda

Redispersible latex poda i powdery thermoplastic resin inowanikwa nekupfapfaidza kuomesa uye kunotevera kugadziridzwa kwepolymer emulsion. Inonyanya kushandiswa pakuvaka, kunyanya yakaoma poda dhaka kuti iwedzere kubatana, kubatana uye kushanduka.

Basa re redispersible latex powder mumatope: redispersible latex powder inoumba firimu mushure mekupararira uye inoita sechipiri chekunamatira kuti chiwedzere kunamatira; iyo inodzivirira colloid inobatwa nedhaka system uye haizoparadzwi nemvura mushure mekuumbwa kwefirimu Kana maviri dispersions; iyo firimu-inogadzira polymer resin inogoverwa mukati medhaka system sechinhu chinosimbisa, nekudaro ichiwedzera kubatanidzwa kwedhaka.

Redispersible latex powder mumatope emvura inogona kuvandudza kushanda kwekuvaka, kunatsiridza kuyerera kwekushanda, kuwedzera thixotropy uye sag resistance, kunatsiridza kubatana, kuwedzera nguva yakazaruka, kuwedzera kuchengetwa kwemvura, nezvimwewo. Kusimba kwesimba, kukwidziridzwa kusimba kwekukotama, kuderedzwa elastic modulus, yakavandudzika deformability, yakawedzera compactness yezvinhu, kuvandudza kupfeka kuramba, kuvandudza kusimba kwekubatana, kuderedzwa kudzika kwecarbonization, kuderedzwa kwemvura kunyura kwechinhu, uye kuita kuti zvinyorwa zvive zvakanakisa kudzora mvura Mvura-yakavakirwa uye zvimwe. migumisiro.

4. Air-entraining agent

Air-entraining agent, inozivikanwawo seair-entraining agent, inoreva kuunzwa kwenhamba yakawanda yakagovaniswa madiki mabhubhu panguva yekusanganisa dhaka, izvo zvinogona kuderedza kusagadzikana kwepamusoro pemvura mudhaka, zvichikonzera kupararira kuri nani. uye yakaderedzwa dhaka musanganiswa. Kubuda ropa, kupatsanura zvinowedzera. Mukuwedzera, kuiswa kwemabhururu emhepo akanaka uye akagadzikana anovandudzawo kushanda kwekuvaka. Huwandu hwemhepo hwakaunzwa hunoenderana nerudzi rwedhaka uye midziyo yekusanganisa inoshandiswa.

Kunyangwe huwandu hwemhepo-inopinza mumiriri idiki kwazvo, iyo mhepo-inopinza mumiriri ine simba guru pakuita kweyakagadzirira-yakasanganiswa dhaka, iyo inogona zvinobudirira kuvandudza kushanda kweyakagadzirira-yakasanganiswa dhaka, kunatsiridza kusamira uye chando kuramba dhaka. , uye kuderedza density of mortar , chengetedza zvinhu uye kuwedzera nzvimbo yekuvaka, asi kuwedzerwa kwemhepo-entraining agent kuchaderedza simba revhu, kunyanya dhaka rinomanikidza. Correlation intensity yekuona iyo yakakwana dosage.

5. Early simba mumiririri

Iyo yekutanga simba mumiriri muwedzero unogona kukurumidzira kukura kwesimba rekutanga redhaka, mazhinji acho ari inorganic electrolytes, uye mashoma ari organic makomisheni.

Iyo accelerator yeyakagadzirira-yakasanganiswa dhaka inodiwa kuti ive upfu uye yakaoma. Calcium formate ndiyo inonyanya kushandiswa mudhaka rakagadzirwa-yakasanganiswa. Calcium formate inogona kuvandudza simba rekutanga redhaka, uye nekumhanyisa hydration ye tricalcium silicate, inogona kuderedza mvura kusvika pamwero wakati. Uyezve, izvo zvemuviri zvimiro zvecalcium formate zvakagadzikana pakudziya kwekamuri. Hazvisi nyore kuita agglomerate uye zvakanyanya kukodzera kunyorera muvhu rakaoma dhaka.

6. Mvura inoderedza mumiririri

Mvura inoderedza mumiririri inoreva kuwedzera kunogona kuderedza kuwanda kwekusanganiswa kwemvura pasi pemamiriro ekuchengetedza kuwirirana kwedhaka zvakangofanana. Iyo inodzikisira mvura inowanzo surfactant, iyo inogona kukamurwa kuita yakajairwa mvura inodzikisira, yakanyanya kunaka inodzikisira mvura, yekutanga simba inodzikisira mvura, inodzoreredza mvura inoderedza, inodzoreredza yakakwira inodzikisira mvura uye inoderedza mvura inoderedza zvinoenderana nemabasa avo. .

Iyo inoderedza mvura inoshandiswa kune yakagadzirira-yakasanganiswa dhaka inodiwa kuti ive powdery uye yakaoma. Mvura yakadaro inoderedza mvura inogona kuparadzirwa zvakaenzana mumatope akaoma pasina kuderedza hupenyu hwesherufu yedhaka rakagadzirwa. Parizvino, kushandiswa kwekudzikisa mvura mudhaka yakagadzirira-yakasanganiswa kazhinji mune simende self-leveling, gypsum self-leveling, batch scraping mortar, waterproof mortar, putty, etc. zvakasiyana-siyana zvematope. Sarudza.


Nguva yekutumira: Feb-17-2023
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