Imwe misiyano mikuru pakati pedhaka rakaoma-yakasanganiswa uye dhaka rechinyakare nderokuti iyo yakaoma-yakavhenganiswa dhaka inogadziriswa nekashoma kemikari additives.Kuwedzera imwe yekuwedzera kune yakaoma poda dhaka kunonzi kugadziridza kwekutanga, kuwedzera maviri kana anopfuura ekuwedzera kunonzi yechipiri shanduko.Hunhu hwehupfu hwehupfu hwakaoma hunoenderana nekusarudzwa kwakarurama kwezvikamu uye kuwirirana uye kuenzaniswa kwezvikamu zvakasiyana-siyana.Nokuti makemikari anowedzera anodhura, uye ane simba guru pakushanda kwevhu rakaoma dhaka.Nokudaro, pakusarudza zvinowedzera, huwandu hwekuwedzera hunofanira kupiwa zvakakosha.Izvi zvinotevera sumo pfupi yekusarudza nzira yemakemikari anowedzera cellulose ether.
Cellulose ether inonziwo rheology modifier, musanganiswa unoshandiswa kugadzirisa rheological properties yedhaka ichangobva kusanganiswa, uye inoshandiswa munenge marudzi ese edhaka.Izvo zvinotevera zvivakwa zvinofanirwa kutariswa pakusarudza siyana uye dosage:
(1) Kuchengeta mvura patembiricha dzakasiyana;
(2) Kukora mhedzisiro, viscosity;
(3) Hukama huri pakati pekusachinja-chinja uye tembiricha, uye pesvedzero pakusimba mukuvapo kwe electrolyte;
(4) Chimiro uye dhigirii etherification;
(5) Kuvandudzwa kwedhaka thixotropy uye kugona chinzvimbo (izvi zvinodiwa kune dhaka rakapendwa panzvimbo dzakamira);
(6) Dissolution kumhanya, mamiriro uye kukwana kwekuparara.
Mukuwedzera pakuwedzera cellulose ether (yakadai semethyl cellulose ether) kune yakaoma poda dhaka, polyvinyl acid vinyl ester inogonawo kuwedzerwa, kureva, yechipiri kugadziriswa.Iyo inorganic binders (simende, gypsum) mudhaka inogona kuve nechokwadi chekumanikidza kwesimba, asi ine zvishoma mhedzisiro pakusimba kwekusimba uye kushanduka kwesimba.Polyvinyl acetate inovaka firimu rakanyunguduka mukati memapores edombo resimende, zvichiita kuti dhaka rikwanise kumirisana nemitoro yakakwira deformation uye kuvandudza kupfeka kuramba.Kudzidzira kwakaratidza kuti kuwedzera huwandu hwakasiyana hwemethyl cellulose ether uye polyvinyl acid vinyl ester kune yakaoma poda dhaka inogona kugadzira yakatetepa-layer smearing plate bonding dhaka, plastering dhaka, yekushongedza pendi dhaka, uye masonry dhaka reaerated kongiri zvidhinha Uye yekuzvimisa-leveling dhaka re. kudira pasi, etc. Kusanganisa iyo miviri haigoni kungovandudza kunaka kwedhaka, asiwo kunovandudza zvikuru kushanda kwekuvaka.
Muchishandiso chinoshanda, kuitira kuti uvandudze kuita kwese, zvinodikanwa kushandisa akawanda ekuwedzera musanganiswa.Pane optimal matching reshiyo pakati pezvinowedzera.Chero bedzi muyero weyero uye chiyero chakakodzera, vanogona kuvandudza mashandiro edhaka kubva kune akasiyana maficha.Zvisinei, kana yakashandiswa yoga, iyo inoshandura mhedzisiro padhaka ishoma, uye dzimwe nguva kunyange Negative mhedzisiro, senge kuwedzera cellulose chete, ichiwedzera kubatanidzwa kwedhaka uye kuderedza dhigirii re delamination, inowedzera zvakanyanya kushandiswa kwemvura kwedhaka uye. chengetedza mukati me slurry, iyo inotungamirira pakuderera kukuru kwesimba rinodzvinyirira;Kana yakasanganiswa nemhepo-entraining agent, kunyange zvazvo dhigirii ye stratification yevhu inogona kuderedzwa zvikuru, uye kushandiswa kwemvura kunoderedzwawo zvakanyanya, asi simba rekumanikidzika revhu rinowanzoita kuderera nekuda kwekuwanda kwemhepo.Kuti uvandudze kushanda kwedhaka remasonry kusvika pamwero mukuru, uye panguva imwechete kudzivirira kukuvadza kune zvimwe zvinhu zvedhaka, kuwirirana, kuisa uye simba remasonry dhaka rinofanira kusangana nezvinodiwa zvepurojekiti uye hunyanzvi hwakakodzera. specifications.Panguva imwecheteyo, hapana lime paste inoshandiswa, kuchengetedza Simende, kuchengetedza kwezvakatipoteredza, nezvimwewo, zvinodikanwa kutora matanho akazara, kuvandudza uye kushandisa masanganiswa akasanganiswa kubva pamaonero ekuderedza mvura, kuwedzera viscosity, kuchengetedza mvura uye kukora, uye air-entraining plasticization.
Nguva yekutumira: Chivabvu-08-2023