1. Nhanganyaya
Cellulose ether (MC) inoshandiswa zvakanyanya muindasitiri yezvivakwa zvekuvaka uye inoshandiswa muhuwandu hwakawanda.Inogona kushandiswa se retarder, mvura yekuchengetedza mumiriri, thickener uye inonamira.Mune yakajairwa yakaoma-yakavhenganiswa dhaka, yekunze madziro ekuisa dhaka, inozvimisikidza dhaka, mataira anonamira, yakakwirira-inoshanda chivakwa putty, inoputika-inodzivirira yemukati uye yekunze madziro putty, isina mvura yakaoma-yakasanganiswa dhaka, gypsum plaster, caulking agent uye zvimwe zvinhu, cellulose Ethers inoita basa rinokosha.Cellulose ether ine simba rakakosha pakuchengetedza mvura, kudiwa kwemvura, kubatana, kunonoka uye kuvakwa kwedhaka system.
Kune akawanda akasiyana marudzi uye zvirevo zve cellulose ethers.Inowanzo shandiswa cellulose ethers mumunda wezvivakwa zvekuvaka zvinosanganisira HEC, HPMC, CMC, PAC, MHEC, nezvimwewo, ayo anoshandiswa mune akasiyana masisitimu edhaka zvichienderana nehunhu hwawo.Vamwe vanhu vakaita tsvakiridzo pamusoro pesimba remhando dzakasiyana uye huwandu hwakasiyana hweselulosi ether pane simende mortar system.Ichi chinyorwa chinotarisa pahwaro uhwu uye chinotsanangura nzira yekusarudza dzakasiyana siyana uye zvirevo zve cellulose ether mune zvakasiyana zvigadzirwa zvedhaka.
2 Hunhu hunoshanda hwe cellulose ether mune simende dhaka
Semusanganiswa wakakosha muvhu rakaoma dhaka, cellulose ether ine mabasa mazhinji mudhaka.Basa rakakosha re cellulose ether mudhaka resimende kuchengetedza mvura nekukora.Pamusoro pezvo, nekuda kwekudyidzana kwayo nesimende sisitimu, inogona zvakare kuita basa rekubatsira mukupinza mweya, kudzoreredza kuseta, nekuvandudza tensile bond simba.
Kunyanya kukosha kweselulosi ether mumatope ndiko kuchengetedza mvura.Cellulose ether inoshandiswa sechinhu chakakosha musanganiswa mune zvinenge zvese zvigadzirwa zvedhaka, kunyanya nekuda kwekuchengetedza kwayo mvura.Kazhinji kutaura, kuchengetwa kwemvura kwe cellulose ether kune hukama neiyo viscosity, huwandu hwekuwedzera uye saizi yechikamu.
Cellulose ether inoshandiswa seyakakora, uye kukora kwayo kunoenderana nedhigirii reetherification, saizi yechikamu, viscosity uye dhigirii rekugadzirisa cellulose ether.Kazhinji kutaura, kukwirisa dhigirii ye etherification uye viscosity ye cellulose ether, iyo diki zvidimbu, zvinova pachena zvakanyanya kukora mhedzisiro.Nekugadzirisa zviri pamusoro pehunhu hweMC, dhaka rinogona kuwana yakakodzera anti-sagging kuita uye yakanakisa viscosity.
Mune cellulose ether, kuiswa kweboka realkyl kunoderedza simba repamusoro remushonga wemvura une cellulose ether, kuitira kuti cellulose ether ive nemhepo-entraining effect padhaka resamende.Kuunza mabhubhu emhepo akakodzera mudhaka kunonatsiridza mashandiro ekuvaka kwedhaka nekuda kwe "ball effect" yemhepo inoputika.Panguva imwecheteyo, kuiswa kwemabhuru emhepo kunowedzera chiyero chekubuda kwedhaka.Zvechokwadi, kuwanda kwemhepo-kupinza kunoda kudzorwa.Kuwanda kwemhepo-kupinza kuchava nemigumisiro yakaipa pasimba redhaka, nokuti mhepo inokuvadza inogona kuiswa.
2.1 Cellulose ether inononotsa hydration process ye simenti, nekudaro ichinonotsa kumisa uye kuomesa simende, uye kuwedzera nguva yekuvhurwa kwedhaka zvinoenderana, asi izvi hazvina kunaka kune dhaka munzvimbo dzinotonhora.Paunosarudza cellulose ether, chigadzirwa chakakodzera chinofanira kusarudzwa maererano nemamiriro chaiwo.Iko kudzoreredza mhedzisiro ye cellulose ether inonyanya kuwedzerwa nekuwedzera kweiyo etherification degree, dhigirii rekuchinja uye viscosity.
Mukuwedzera, cellulose ether, sechinhu chakareba-cheni yepolymer, inogona kuvandudza kushanda kwekubatanidza ne substrate mushure mekuwedzera kune simenti system pasi pechikonzero chekuchengetedza zvakakwana hunyoro hwehunyoro.
2.2 Zvinhu zve cellulose ether mudhaka zvinonyanya kusanganisira: kuchengetedza mvura, kuwedzera, kuwedzera nguva yekuisa, kupinza mhepo uye kuvandudza kusimba kwekubatana, etc. Zvinoenderana nepamusoro pezvivakwa, zvinoratidzwa mune maitiro eMC pachayo, zvinoti: viscosity, kugadzikana, kugutsikana kwezvinhu zvinoshanda (kuwedzera huwandu), dhigirii rekutsiva etherification uye kufanana kwayo, dhigirii rekugadzirisa, zvinyorwa zvezvinhu zvinokuvadza, nezvimwewo. Naizvozvo, pakusarudza MC, cellulose ether ine maitiro ayo anogona kupa kushanda kwakakodzera kunofanira kuva. yakasarudzwa zvinoenderana nezvinodiwa chaizvo zvechigadzirwa chedhaka kune imwe kuita.
3 Hunhu hwe cellulose ether
Kazhinji, mirairo yechigadzirwa inopiwa nevagadziri ve cellulose ether ichabatanidza zviratidzo zvinotevera: chitarisiko, viscosity, dhigirii rekuchinja kweboka, fineness, kushingaira kwezvakatipoteredza (kuchena), hunyoro, nzvimbo dzinokurudzirwa uye dosage, nezvimwewo zviratidzo zvekushanda zvinogona kuratidza. chikamu chebasa re cellulose ether, asi pakuenzanisa nekusarudza cellulose ether, zvimwe zvinhu zvakadai semakemikari ayo, dhigirii rekugadzirisa, etherification degree, NaCl content, uye DS kukosha zvinofanirawo kuongororwa.
3.1 Viscosity ye cellulose ether
Iyo viscosity ye cellulose ether inokanganisa kuchengetwa kwayo kwemvura, kukora, kunonoka uye zvimwe zvinhu.Naizvozvo, chiratidzo chakakosha chekuongorora uye kusarudza cellulose ether.
Tisati takurukura nezve viscosity ye cellulose ether, zvinofanirwa kucherechedzwa kuti kune nzira ina dzinowanzoshandiswa pakuyedza viscosity ye cellulose ether: Brookfield, Hakke, Höppler, uye rotational viscometer.Midziyo, kugadzirisa kwekugadzirisa uye nharaunda yekuyedza inoshandiswa nenzira ina dzakasiyana, saka mhedzisiro yeiyo yakafanana MC mhinduro yakaedzwa nenzira ina zvakare akasiyana zvakanyanya.Kunyangwe kune imwechete mhinduro, uchishandisa nzira imwechete, kuyedza pasi pemamiriro akasiyana ezvakatipoteredza, iyo viscosity
Migumisiro inosiyanawo.Naizvozvo, pakutsanangura viscosity ye cellulose ether, zvinodikanwa kuratidza kuti ndeipi nzira inoshandiswa pakuyedza, kugadzirisa kugadzirisa, rotor, kutenderera kumhanya, kuyedza tembiricha uye humidity uye mamwe mamiriro ezvakatipoteredza.Iyi viscosity kukosha yakakosha.Hazvina zvazvinoreva kungotaura kuti "chii chinonzi viscosity yeimwe MC".
3.2 Chigadzirwa Kugadzikana kweCellulose Ether
Cellulose ethers inozivikanwa kuve inogona kurwiswa ne cellulosic molds.Kana fungus rabvisa cellulose ether, rinotanga rarwisa inetherified glucose unit mu cellulose ether.Semutsetse wemutsetse, kana iyo glucose unit yaparadzwa, iyo yese molecular cheni inotyoka, uye chigadzirwa viscosity inodonha zvakanyanya.Mushure mekunge iyo glucose unit yave etherified, mold haigoni kuodza nyore nyore cheni ye molecular.Naizvozvo, iyo yakakwirira dhigirii ye etherification substitution (DS kukosha) ye cellulose ether, iyo yakakwirira kugadzikana kwayo kuchava.
3.3 Active ingredient zviri mukati me cellulose ether
Iyo yakakwirira yezvinyorwa zvinoshanda mu cellulose ether, iyo yakakwira mutengo wekuita kwechigadzirwa, kuitira kuti mhedzisiro iri nani iwanikwe nemuyero wakafanana.Mushonga unoshanda mu cellulose ether is cellulose ether molecule, inova organic substance.Naizvozvo, kana uchiongorora zvinobudirira zvemukati zve cellulose ether, zvinogona kuratidzwa zvisina kunanga nehukoshi hwemadota mushure mekuverengera.
3.4 NaCl yemukati mu cellulose ether
NaCl chinhu chisingadzivisiki ne-chigadzirwa mukugadzirwa kwe cellulose ether, iyo inowanzoda kubviswa nekugezwa kwakawanda, uye nguva zhinji yekugeza, iyo shoma NaCl inoramba iripo.NaCl injodzi inozivikanwa pakuora kwesimbi simbi uye simbi waya mesh.Naizvozvo, kunyangwe kugezwa kwetsvina yekugeza NaCl kakawanda kunogona kuwedzera mutengo, pakusarudza zvigadzirwa zveMC, isu tinofanirwa kuedza nepatinogona napo kusarudza zvigadzirwa zvine yakaderera NaCl zvemukati.
4 Misimboti yekusarudza cellulose ether yezvakasiyana zvigadzirwa zvedhaka
Paunenge uchisarudza cellulose ether yezvigadzirwa zvedhaka, chekutanga, maererano nekutsanangurwa kwechigadzirwa chechigadzirwa, sarudza zviratidzo zvayo zvekushanda (zvakadai se viscosity, dhigirii rekugadzirisa etherification, zvinobudirira zvezvinhu, zvinyorwa zveNaCl, nezvimwewo) Maitiro ekushanda uye kusarudzwa. nheyo
4.1 Yakatetepa plaster system
Kutora dhaka rekupurasita semuenzaniso mutete, sezvo dhaka rekupurasita rinosangana zvakananga nekunze kwezvakatipoteredza, pasi rinorasikirwa nemvura nekukurumidza, saka chiyero chepamusoro chekuchengetedza mvura chinodiwa.Kunyanya panguva yekuvaka muzhizha, zvinodikanwa kuti dhaka rinogona kuchengetedza unyoro pakupisa kwakanyanya.Izvo zvinodikanwa kusarudza MC ine yakakwira yekuchengeta mvura mwero, iyo inogona kutariswa zvizere kuburikidza nezvikamu zvitatu: viscosity, particle size, uye kuwedzera huwandu.Kazhinji, pasi pemamiriro akafanana, sarudza MC ine viscosity yepamusoro, uye uchifunga zvinodiwa zvekushanda, viscosity haifanirwe kunge yakanyanya kukwirira.Nokudaro, MC yakasarudzwa inofanira kuva nehuwandu hwekuchengetedza mvura uye hutsika hushoma.Pakati pezvigadzirwa zveMC, MH60001P6 nezvimwe zvinogona kukurudzirwa kune adhesive plastering system yehutete hwekupurasita.
4.2 Cement-based plastering mortar
Kupura dhaka kunoda kufanana kwakanaka kwedhaka, uye zviri nyore kuisa zvakaenzana pakupurasita.Panguva imwecheteyo, inoda yakanaka anti-sagging performance, yakakwirira yekupomba simba, fluidity uye kushanda.Naizvozvo, MC ine yakaderera viscosity, kukurumidza kupararira uye kusachinja-chinja (zvidiki zvidimbu) mune simende dhaka inosarudzwa.
Mukuvaka kwekunamatira tile, kuitira kuchengetedza kuchengetedzwa uye kushanda kwepamusoro, zvinonyanya kudiwa kuti dhaka rine nguva yakareba yekuvhura uye zvirinani anti-slide performance, uye panguva imwechete inoda hukama hwakanaka pakati pe substrate uye tile. .Naizvozvo, mataira anonamira ane zvakati wandei zvinodiwa zveMC.Nekudaro, MC kazhinji ine yakawandisa yemukati mune matiles anonamira.Pakusarudza MC, kusangana nezvinodiwa zvenguva yakareba yekuvhura, MC pachayo inoda kuve nepamusoro pekuchengetedza mvura, uye chiyero chekuchengetedza mvura chinoda viscosity yakakodzera, huwandu hwekuwedzera uye saizi yechikamu.Kuti usangane neakanaka anti-sliding performance, iko kukora kweMC kwakanaka, kuitira kuti dhaka rive rakasimba vertical kuyerera kuramba, uye kuita kwakakora kune zvimwe zvinodiwa pa viscosity, etherification degree uye particle size.
4.4 Kuzvienzanisa nedhaka repasi
Iyo yekuzvimisa-leveling dhaka ine zvakakwirira zvinodikanwa pakuita kwekuenzanisa kwedhaka, saka yakakodzera kusarudza yakaderera-viscosity cellulose ether zvigadzirwa.Sezvo kuzvikwirisa kuchida kuti dhaka rakavhenganiswa rikwanise kugadzikiswa pasi, kuyerera uye kupomba kunodiwa, saka reshiyo yemvura kune zvinhu yakakura.Kuti udzivise kubuda ropa, MC inofanirwa kudzora kuchengetwa kwemvura kwepamusoro uye kupa viscosity kudzivirira sedimentation.
4.5 Masonry dhaka
Nekuti dhaka remasonry rinobata zvakananga pamusoro peiyo masonry, inowanzova gobvu-layer kuvakwa.Iyo dhaka inodiwa kuve nekushanda kwakanyanya uye kuchengetedza kwemvura, uye inogona zvakare kuve nechokwadi chekubatanidza simba nemasoni, kuvandudza kushanda, uye kuwedzera kushanda.Nokudaro, MC yakasarudzwa inofanira kukwanisa kubatsira dhaka kuti ivandudze kushanda kwepamusoro, uye viscosity ye cellulose ether haifaniri kunge yakanyanyisa.
4.6 Insulation slurry
Sezvo thermal insulation slurry inonyanya kushandiswa nemaoko, zvinodikanwa kuti iyo yakasarudzwa MC inogona kupa dhaka kushanda zvakanaka, kushanda kwakanaka uye kuchengetedza kwemvura kwakanakisa.MC inofanirwawo kuve nehunhu hwepamusoro viscosity uye yakakwira mhepo-kupinda.
5 Mhedziso
Basa re cellulose ether mudhaka resimende kuchengetedza mvura, kukora, kupinza mhepo, kunonoka uye kuvandudzwa kwesimba rezvisungo, nezvimwe.
Nguva yekutumira: Jan-30-2023