Pendi, inozivikanwa sependi muChina. Pendi inonzi pendi inoputirwa pamusoro pechinhu chinofanira kuchengetedzwa kana kushongedzwa, uye inogona kugadzira firimu rinogara rakabatana zvakasimba nechinhu chinofanira kuputika.
Chii chinonzi Hydroxyethyl Cellulose?
Hydroxyethyl cellulose (HEC), chinhu chena kana cheyero yakapfava, chisina hwema, chisina chepfu, chine fibrous kana powdery solid, chinogadzirwa ne etherification reaction ye alkaline cellulose ne ethylene oxide (kana chlorohydrin), ndeche Nonionic soluble cellulose ethers. Sezvo HEC iine hunhu hwakanaka hwekukora, kumisa, kuparadzira, emulsifying, bonding, film-forming, kuchengetedza hunyoro uye kupa protective colloid, yakashandiswa zvakanyanya mukutsvaga mafuta, coatings, kuvaka, mishonga, chikafu, machira, kugadzira mapepa uye polymer Polymerization nedzimwe nzvimbo.
Chii chinoitika kana hydroxyethyl cellulose yasangana nependi inobva mumvura?
Sechinhu chisiri cheionic surfactant, hydroxyethyl cellulose ine zvinhu zvinotevera pamusoro pekukora, kumisa, kusunga, kuyerera, kugadzira firimu, kupararira, kuchengetedza mvura uye kupa colloid inodzivirira:
HEC inonyungudika mumvura inopisa kana mvura inotonhora, inopisa zvakanyanya kana kufashaira pasina mvura, zvekuti ine hunhu hwakasiyana-siyana hwekunyungudika uye hunhu hwekusviba, uye isingapisi;
Kugona kuchengetedza mvura kwakapetwa kaviri pane kwemethyl cellulose, uye ine kurongeka kuri nani kwekuyerera kwemvura;
Kana tichienzanisa ne methyl cellulose inozivikanwa uye hydroxypropyl methyl cellulose, HEC ndiyo yakanyanya kuipa kupfuura dzose, asi colloid yekudzivirira ndiyo yakanyanya kusimba.
Haina ionic uye inogona kushanda pamwe chete nemamwe mapolymer anonyungudika mumvura, masurfactants, uye munyu. Ichinhu chakanakisa che colloidal thickener chekugadzirisa ma electrolyte ane huwandu hwakawanda;
Ungashandisa sei hydroxyethyl cellulose? Ungaiwedzera sei?
Wedzera zvakananga panguva yekugadzira - nzira iyi ndiyo iri nyore uye inotora nguva pfupi.
Wedzera mvura yakachena mubhaketi hombe ine muchina wekusanganisa wakanyanya kuchekwa. Tanga kusanganisa nguva dzose nekumhanya kwakaderera uye zvishoma nezvishoma sefa hydroxyethyl cellulose mumushonga zvakaenzana. Ramba uchisanganisa kusvika zvidimbu zvese zvanyorova. Wobva wawedzera zvinochengetedza nezvimwe zvakasiyana-siyana. Zvakadai sepigments, dispersing aids, ammonia water, nezvimwewo. Kurudzira kusvika hydroxyethyl cellulose yese yanyungudika zvachose (viscosity yemushonga inowedzera zvakanyanya) usati wawedzera zvimwe zvikamu mufomura yekuita.
Yakashongedzerwa nedoro remumba
Kugadzirira doro remushonga nehukuru hwakanyanya kutanga, wozoriisa muchigadzirwa. Chakanakira nzira iyi ndechekuti ine kuchinjika kukuru uye inogona kuwedzerwa zvakananga kuchigadzirwa chapera, asi inofanira kuchengetwa zvakanaka. Matanho enzira iyi akafanana nematanho mazhinji ari muchikamu chekutanga; musiyano ndewekuti hapana chikonzero chekushandisa mushonga unocheka zvakanyanya, uye mamwe ma agitator ane simba rakakwana rekuchengetedza hydroxyethyl cellulose yakapararira zvakaenzana mumushonga anogona kuenderera mberi pasina kumira. Sanganisa kusvika yanyungudika zvachose kuita mushonga unonamira. Zvisinei, zvinofanira kucherechedzwa kuti mushonga wefungicide unofanirwa kuwedzerwa kune doro remushonga nekukurumidza sezvinobvira.
Sezvo hydroxyethyl cellulose yakacheneswa pamusoro iri powdery kana fibrous solid, Lihongde inokuyeuchidza kuti unyatsoteerera zvinhu zvinotevera paunenge uchigadzira hydroxyethyl cellulose mother liquor:
(1) Usati waisa hydroxyethyl cellulose uye mushure mekuwedzera, inofanira kumutswa nguva dzose kusvika mhinduro yacho yanyatsojeka uye yakajeka.
(2) Inofanira kuseferwa zvishoma nezvishoma mutangi rekusanganisa, uye usaise huwandu hwakawanda kana kuisa zvakananga hydroxyethyl cellulose mutangi rekusanganisa.
(3) Kupisa kwemvura uye kukosha kwePH mumvura zvine hukama hwakakosha nekunyungudika kwehydroxyethyl cellulose, saka kutarisisa kwakakosha kunofanirwa kupihwa.
(4) Usawedzera zvimwe zvinhu zvine alkaline mumusanganiswa usati wanyikwa upfu hwe hydroxyethyl cellulose nemvura. Kuwedzera pH mushure mekunyorovesa kunobatsira kunyungudika.
(5) Nepose pazvinogoneka, wedzera mushonga wekuuraya fungus pachine nguva
(6) Pakushandisa high-viscosity hydroxyethyl cellulose, huwandu hwedoro remubereko haufanirwe kupfuura 2.5-3% (nehuremu), zvikasadaro doro remubereko richava rakaoma kubata.
Nguva yekutumira: Kurume-02-2023