Nhasi, tichataura newe nezve kushandiswa kwakajairika kwehydroxyethyl cellulose mupende uye machira.Paint, yagara ichinzi coatings muChina.Iko kunonzi kupfekedzwa kwakaputirwa pamusoro pechinhu chinofanira kudzivirirwa kana kushongedzwa, uye chinogona kuumba firimu rinopfuurira rakanyatsobatanidzwa kune chinhu chinoputirwa.
Chii chinonzi hydroxyethyl cellulose?
Hydroxyethyl cellulose (HEC), chena kana mwenje yero, isina kunhuhwirira, isina-chepfu fibrous kana upfu 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.
Chii chinoitika kana hydroxyethyl cellulose ikasangana nemvura-yakavakirwapendi?
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?Kuwedzera sei?
Wedzera zvakananga panguva yekugadzirwa - iyi nzira ndiyo iri nyore uye inotora nguva shoma.
Wedzera mvura yakachena kune vheti yakashongedzerwa ne-high-shear blender.Tanga kubvongodza uchienderera nekumhanya kwakaderera uye zvishoma nezvishoma kusefa iyo hydroxyethyl cellulose zvakaenzana mumhinduro.Ramba uchikurunga kusvika zvimedu zvese zvanyorova.Zvadaro wobva wawedzera kuchengetedza uye zvakasiyana-siyana zvinowedzera.Zvakadai se pigment, dispersing aids, ammonia water, etc. Shingairira kusvikira yose hydroxyethyl cellulose yakanyungudutswa zvachose (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.
Sezvo iyo pamusoro-yakagadziriswa hydroxyethyl cellulose iri hupfu kana fibrous solid, Shandong Heda inokuyeuchidza kuti uteerere kune anotevera mapoinzi paunenge uchigadzira hydroxyethyl cellulose mai doro:
(1) Pamberi uye mushure mekuwedzera hydroxyethyl cellulose, inofanira kuchengetwa ichikurudzira kusvikira mhinduro yacho yakanyatsojeka uye yakajeka.
(2) Inofanirwa kupepetwa zvishoma nezvishoma mubhodhoro rinosanganiswa, uye usabatanidza zvakananga hydroxyethyl cellulose uye hydroxyethyl cellulose mubhodhoro rinosanganiswa muhuwandu hukuru kana nenzira yemapundu nemabhora.
(3) Tembiricha yemvura uye pH kukosha kwemvura zvine hukama huri pachena nekuparara kwehydroxyethyl cellulose, saka kutariswa kwakanyanya kunofanirwa kubhadharwa kwairi.
(4) Usambofa wawedzera zvimwe zvinhu zvealkaline kumusanganiswa usati wanyikwa hydroxyethyl cellulose poda nemvura.Kusimudza pH chete mushure mekunyorova kunobatsira mukuparara.
(5) Sezvinobvira, wedzera antifungal mumiriri pamberi.
(6) Paunenge uchishandisa high-viscosity hydroxyethyl cellulose, kusanganiswa kwedoro raamai hakufaniri kunge kwakakwirira kudarika 2.5-3% (kuburikidza nehuremu), zvikasadaro doro raamai rakaoma kubata.
Nguva yekutumira: Nov-03-2022