Kupatsanurwa kweEther yeCellulose
Cellulose ether izwi rekuti zvigadzirwa zvinogadzirwa nekuita kwealkali cellulose uye etherifying agent pasi pemamwe mamiriro ezvinhu. Kana alkali cellulose ikatsiviwa ne etherifying agents dzakasiyana, cellulose ethers dzakasiyana dzichawanikwa.
Zvichienderana nehunhu hwe ionization hwezvinhu zvinotsiva, cellulose ethers dzinogona kukamurwa muzvikamu zviviri: ionic (senge carboxymethyl cellulose) uye nonionic (senge methyl cellulose).
Zvichienderana nerudzi rwechinhu chinotsiva, cellulose ether inogona kukamurwa kuita monoether (yakadai semethyl cellulose) uye mixed ether (yakadai sehydroxypropyl methyl cellulose).
Zvichienderana nekusiyana kwekunyungudika, inogona kukamurwa kuita kunyungudika kwemvura (senge hydroxyethyl cellulose) uye kunyungudika kweorganic solvent (senge ethyl cellulose).
Ma ether e cellulose anonyungudika mumvura anoshandiswa mumamortars akasanganiswa akaoma akakamurwa kuva ethers e cellulose inonyungudika ipapo ipapo uye ethers e cellulose inonyungudika yakacheneswa pamusoro.
Kusiyana kwavo kuri kupi? Uye nzira yekuigadzirisa zvakanaka kuti ive mhinduro yemvura ye2% yekuyedza viscosity?
Chii chinonzi kurapwa pamusoro pemvura?
Mhedzisiro pane cellulose ether?
chekutanga
Kugadzirisa pamusoro inzira yekugadzira pamusoro pechinhu chepasi chine hunhu hwemakanika, hwepanyama uye hwemakemikari hwakasiyana nehunhu hwepasi.
Chinangwa chekurapa pamusoro pe cellulose ether ndechekunonotsa nguva yekubatanidza cellulose ether nemvura kuti isangane nezvinodiwa zvishoma nezvishoma zvemamortar ependi, uye zvakare kuwedzera kuramba kwe cellulose ether uye kuvandudza kugadzikana kwekuchengetera.
Musiyano apo mvura inotonhora inogadzirwa ne 2% mvura ine mhinduro:
Cellulose ether yakacheneswa pamusoro inogona kupararira nekukurumidza mumvura inotonhora uye haisi nyore kuungana nekuda kwekunonoka kwayo kupenya;
Cellulose ether isina kugadziriswa pamusoro, nekuda kwekusimba kwayo nekukurumidza, inosviba isati yapararira mumvura inotonhora, uye inowanzo sangana.
Maitiro ekugadzirisa sei cellulose ether isina kurapwa pamusoro?
1. Kutanga, isa huwandu hwakati hwe ether ye cellulose isina kurapwa pamusoro;
2. Wobva wawedzera mvura inopisa patembiricha inosvika 80 degrees Celsius, huremu hwacho chikamu chimwe muzvitatu chehuwandu hwemvura hunodiwa, kuitira kuti ikwanise kuzvimba zvizere uye kupararira;
3. Tevere, dururirai zvishoma nezvishoma mumvura inotonhora, huremu hwacho hunosvika zvikamu zviviri muzvitatu zvemvura yasara inodiwa, rambai muchikurunga kuti inamire zvishoma nezvishoma, uye hapazovi nekuungana;
4. Pakupedzisira, kana yakaenzana nehuremu, isa mumvura inodziya kusvika yadzikira kusvika pa20 degrees Celsius, uye ipapo bvunzo ye viscosity inogona kuitwa!
Nguva yekutumira: Kukadzi-02-2023