Hydroxyethyl cellulose (HEC), chena kana chiedza chero, chisinganhuhwi, chisina chepfu fibrous kana powdery yakasimba, yakagadzirwa ne etherification yealkaline cellulose uye ethylene oxide (kana chlorohydrin), yerudzi rweNonionic soluble cellulose ethers. Nemhaka yokuti HEC ine zvinhu zvakanaka zvekukora, kumisa, kuparadzira, emulsifying, kusungirirwa, kugadzira firimu, kuchengetedza unyoro uye kupa macolloid ekudzivirira, yakashandiswa zvakanyanya mukuongorora kwemafuta, kuvhara, kuvaka, mishonga uye zvokudya, machira, mapepa uye mapolymers. Polymerization uye mamwe minda.
Mushure mokunge hydroxyethyl cellulose inosangana nemvura-based pendi?
Senge isiri-ionic surfactant, hydroxyethyl cellulose ine zvinotevera zvimiro mukuwedzera mukukora, kumisa, kusunga, flotation, firimu-kuumba, kuparadzira, kuchengetedza mvura uye kupa inodzivirira colloids:
HEC inonyungudika mumvura inopisa kana inotonhora, uye haipindi pakushisa kwepamusoro kana kufashaira, ichiita kuti ive nehuwandu hwekunyungudika uye viscosity maitiro, pamwe nekusapisa kwegelling;
Iyo yekuchengeta mvura inokwana zvakapetwa kaviri iyo yemethyl cellulose, uye ine zvirinani kuyerera mutemo;
Kuenzaniswa neyakazivikanwa methyl cellulose uye hydroxypropyl methyl cellulose, kugona kuparadzira kweHEC ndiko kwakaipisisa, asi iyo inodzivirira colloid kugona ndiyo yakasimba;
Haisi-ionic uye inogona kugarisana nemamwe akawanda-anonyungudika mapolymers, ma surfactants, uye munyu. Iyo yakanakisa colloidal thickener ye-high-concentration electrolyte mhinduro.
Nzira yekushandisa sei hydroxyethyl cellulose?
Wedzera zvakananga panguva yekugadzira - iyi nzira ndiyo iri nyore uye inotora nguva shoma:
Tanga kubvongodza uchienderera mberi nekumhanya kwakaderera uye zvishoma nezvishoma sefa iyo hydroxyethyl cellulose zvakaringana mumhinduro uye ramba uchikurunga kusvika zvimedu zvese zvanyikwa. Zvadaro wobva wawedzera kuchengetedza uye zvakasiyana-siyana zvinowedzera. Zvakadai se pigment, dispersing aids, ammonia, etc. Shingairira kusvikira yose hydroxyethyl cellulose yakanyungudutswa zvachose (iyo viscosity yemhinduro inowedzera zvakanyanya) isati yawedzera zvimwe zvikamu mufomura kuti iite mhinduro.
Akashongedzerwa nedoro ramai
Iko kugadzirira amai doro rine huwandu hwepamusoro kutanga, uye wozowedzera kune chigadzirwa. Kubatsira kweiyi nzira ndeyokuti ine hukuru hunochinja uye inogona kuwedzerwa zvakananga kune yakapedzwa chigadzirwa, asi inofanira kuchengetwa zvakanaka. Matanho eiyi nzira akafanana nematanho mazhinji ari muNzira yekutanga; musiyano ndewekuti hapana chikonzero che-high-shear agitator, uye chete mamwe agitators ane simba rakakwana kuchengetedza hydroxyethyl cellulose yakapararira yakapararira mumushonga inogona kushandiswa, uye ramba uchikurudzira kusvikira yanyungudika zvachose mumhinduro ye viscous. Nekudaro, zvinofanirwa kucherechedzwa kuti iyo antifungal agent inofanirwa kuwedzerwa kuna amai doro nekukurumidza sezvinobvira.
Mazano akanaka:
Sezvo pamusoro-yakagadzirwa hydroxyethyl cellulose iri upfu kana fibrous yakasimba, paunenge uchigadzira hydroxyethyl cellulose mai chinwiwa, chiyeuchidze kuti uteerere kune anotevera mapoinzi:
Pamberi uye mushure mekuwedzera hydroxyethyl cellulose, inofanira kuchengetwa ichikurudzira kusvikira mhinduro yacho yakanyatsojeka uye yakajeka;
Inofanira kupepetwa mubhari yekuvhenganisa zvishoma nezvishoma, uye usabatanidza zvakananga mapundu kana spheroids uye hydroxyethyl cellulose mugomba rinosanganiswa;
Iyo tembiricha yemvura uye pH kukosha kwemvura ine hukama hwakakosha nekuparara kwehydroxyethyl cellulose, saka kutarisisa kwakanyanya kunofanirwa kubhadharwa kwairi;
Usawedzera zvimwe alkaline zvinhu musanganiswa pamberihydroxyethyl cellulosehupfu hwakanyoroveswa nemvura. Kusimudza kukosha kwepH mushure mekunyura kuchabatsira kunyungudika;
Sezvinobvira, wedzera antifungal mumiririri mberi;
Paunenge uchishandisa high-viscosity hydroxyethyl cellulose, kusanganiswa kwedoro raamai hakufaniri kunge kwakakwirira kudarika 2.5-3% (kuburikidza nehuremu), kana zvisina kudaro amai doro rakaoma kubata.
Nguva yekutumira: Kubvumbi-28-2024