Kuchengetwa kwemvura kwehydroxypropyl methylcellulose ether
Kuchengetwa kwemvura kwedry mix mortar zvinoreva kugona kwemortar kubata nekukiya mvura. Kana viscosity yehydroxypropyl methylcellulose ether yakakwira, kuchengetedza kwemvura kuri nani. Nekuti chimiro checellulose chine hydroxyl ne ether bonds, maatomu eokisijeni ari mumapoka ehydroxyl ne ether bond anosangana nemamorekuru emvura kuti aumbe hydrogen bonds, saka mvura yakasununguka inova mvura yakasungwa uye inosunga mvura, nokudaro ichiita basa mukuchengetedza mvura.
Kunyungudika kweHydroxypropyl Methyl Cellulose Ether
1. Ether ine makomba machena iri nyore kupararira mumvura pasina kuungana, asi mwero wekunyungudika kwayo unononoka zvikuru. Ether ine mambure ari pasi pe60 inonyungudika mumvura kwemaminitsi angangoita makumi matanhatu.
2. Fine particle cellulose ether iri nyore kupararira mumvura pasina agglomeration, uye mwero wekunyungudika uri pakati nepakati. Cellulose ether iri pamusoro pe80 mesh inonyungudika mumvura kwemaminitsi angangoita matatu.
3. Ether ye cellulose inopfava zvikuru inopararira nekukurumidza mumvura, inonyunguduka nekukurumidza, uye inoumba viscosity nekukurumidza. Ether yeCellulose iri pamusoro pe120 mesh inonyunguduka mumvura kwemasekondi angangoita 10-30.
Kana zvidimbu zve hydroxypropyl methylcellulose ether zvakapfava, zvinoita kuti mvura irambe ichichengetwa zvakanaka. Pamusoro pe coarse-grained cellulose ether inonyunguduka pakarepo mushure mekusangana nemvura uye inoumba gel phenomenon. Guruu rinoputira zvinhu izvi kudzivirira mamorekuru emvura kuti asarambe achipinda. Dzimwe nguva harigone kupararira zvakaenzana uye kunyunguduka kunyangwe mushure mekukurunga kwenguva refu, zvichiita kuti pave ne cloudy flocculent solution kana agglomeration. Zvikamu zvidiki zvinopararira uye zvinonyunguduka pakarepo mushure mekusangana nemvura kuti zvigadzire viscosity yakafanana.
PH kukosha kwehydroxypropyl methylcellulose ether (inononoka kana kuti inotanga kushanda nesimba)
pH kukosha kwevagadziri ve hydroxypropyl methylcellulose ether vari kumba nekune dzimwe nyika inodzorwa pa7, iyo iri muchimiro cheacidic. Nekuti kuchine huwandu hwakawanda hweanhydroglucose ring structures muchimiro chemolecular che cellulose ether, anhydroglucose ring ndiyo boka guru rinokonzera kunonoka kwesimende. Anhydroglucose ring inogona kuita kuti calcium ions mu solution ye hydration yesimende igadzire sugar-calcium molecular compounds, kuderedza huwandu hwecalcium ion panguva ye induction ye hydration yesimende, kudzivirira kuumbwa uye kunaya kwe calcium hydroxide uye calcium salt crystals, uye kunonoka hydration yesimende. Kana PH value iri muchimiro che alkaline, mortar ichaonekwa iri muchimiro chekutanga-simba. Iye zvino mafekitori mazhinji anoshandisa sodium carbonate kugadzirisa pH value. Sodium carbonate imhando ye quick-setting agent. Sodium carbonate inovandudza mashandiro epamusoro pe cement particles, inosimudzira kubatana pakati pe zvidimbu, uye inowedzera kuvandudza viscosity yemortar. Panguva imwecheteyo, sodium carbonate inokurumidza kusangana ne calcium ions mumortar kukurudzira kuumbwa kwe ettringite, uye simende inogomera nekukurumidza. Saka, pH inofanira kugadziriswa zvichienderana nevatengi vakasiyana-siyana mukugadzirwa chaiko.
Hunhu hweHydroxypropyl Methyl Cellulose Ether muKupinza Mhepo
Mhedzisiro yemhepo inopinza mweya yehydroxypropyl methylcellulose ether inonyanya kuitika nekuti cellulose ether imhando yesurfactant. Basa repakati peserulose ether rinonyanya kuitika pa gas-liquid-solid interface. Kutanga, kuiswa kwemabubble emhepo, kunoteverwa nekupararira uye Wetting effect. Cellulose ether ine ma alkyl groups, ayo anoderedza zvakanyanya kushushikana kwemvura uye simba repakati pemvura, zvichiita kuti zvive nyore kugadzira mabubbles madiki akawanda panguva yekusanganisa mvura.
Hunhu hweGel hweHydroxypropyl Methyl Cellulose Ether
Mushure mekunge hydroxypropyl methylcellulose ether yanyungudika mumota, mapoka emethoxyl nehydroxypropyl ari pamota anozobatana necalcium ions nemaaruminiyamu ions ari muslurry kuti agadzire gel ine viscous uye anozadza simende mortar void. , kuvandudza kusimba kwemortar, kutamba basa rekuzadza nekusimbaradza. Zvisinei, kana composite matrix iri pasi pekumanikidzwa, polymer haigone kutamba basa rekutsigira rakasimba, saka simba nekupeta kwemortar kunoderera.
Kugadzirwa kwefirimu reHydroxypropyl Methyl Cellulose Ether
Mushure mekunge hydroxypropyl methyl cellulose ether yawedzerwa kuti inyorovese mvura, jira rakatetepa relatex rinoumbwa pakati pezvidimbu zvesimende. Firimu iyi ine simba rekuvhara uye inovandudza kuoma kwepamusoro pemota. Nekuda kwekuchengetedza mvura kwakanaka kwehydroxypropyl methylcellulose ether, mamorekuru emvura akakwana anochengetwa mukati memota, nokudaro zvichiita kuti simende iome uye simba rayo riwedzere, zvichivandudza simba rekubatanidza mota, uye panguva imwe chete Inovandudza kubatana kwemota, inoita kuti mota ive nepurasitiki yakanaka uye kuchinjika, uye inoderedza kupwanyika uye kushanduka kwemota.
Nguva yekutumira: Chivabvu-23-2023