Ma cellulose a Hydroxyethyl amagwiritsidwa ntchito mu utoto

Lero, tikambirana za kugwiritsidwa ntchito kofala kwa hydroxyethyl cellulose mu utoto ndi zokutira.Utoto, womwe nthawi zambiri umatchedwa zokutira ku China.Zomwe zimatchedwa zokutira zimakutidwa pamwamba pa chinthucho kuti chitetezedwe kapena chokongoletsedwa, ndipo chikhoza kupanga filimu yosalekeza yomwe imamangirizidwa mwamphamvu ku chinthu chomwe chiyenera kuvalidwa.

Kodi hydroxyethyl cellulose ndi chiyani?

Hydroxyethyl cellulose (HEC), yoyera kapena yopepuka yachikasu, yopanda fungo, yopanda poizoni kapena yolimba, yokonzedwa ndi etherification ya cellulose yamchere ndi ethylene oxide (kapena chlorohydrin), yamtundu wa Nonionic soluble cellulose ethers.Chifukwa HEC ili ndi katundu wabwino wa thickening, kuyimitsa, kufalitsa, emulsifying, kugwirizana, kupanga mafilimu, kuteteza chinyezi ndi kupereka ma colloids otetezera, amagwiritsidwa ntchito kwambiri pofufuza mafuta, zokutira, zomangamanga, mankhwala ndi chakudya, nsalu, mapepala ndi ma polima.Polymerization ndi magawo ena.

Zomwe zimachitika pamene hydroxyethyl cellulose ikumana ndi madziutoto?

Monga si ionic surfactant, hydroxyethyl cellulose ili ndi zotsatirazi kuwonjezera pa thickening, kuyimitsa, kumanga, kuyandama, kupanga mafilimu, kubalalika, kusunga madzi ndi kupereka colloids zoteteza:

HEC imasungunuka m'madzi otentha kapena ozizira, ndipo sichimawotcha kutentha kwambiri kapena kutentha, kumapangitsa kuti ikhale ndi mitundu yambiri ya solubility ndi viscosity, komanso gelling yopanda kutentha;

Mphamvu yosungira madzi imakhala yowirikiza kawiri ya methyl cellulose, ndipo imakhala ndi malamulo oyendetsera bwino;

Poyerekeza ndi methyl cellulose yodziwika bwino ndi hydroxypropyl methyl cellulose, kuthekera kobalalika kwa HEC ndikoyipa kwambiri, koma luso loteteza la colloid ndilolimba kwambiri;

Si ionic ndipo imatha kukhala limodzi ndi ma polima ena osungunuka m'madzi, ma surfactants, ndi mchere.Ndiwothira bwino kwambiri wa colloidal pamayankho a electrolyte apamwamba kwambiri.

Momwe mungagwiritsire ntchito hydroxyethyl cellulose?Kodi kuwonjezera izo?

Onjezani mwachindunji panthawi yopanga - njirayi ndi yosavuta komanso imatenga nthawi yochepa.

Onjezani madzi oyera mu phula lomwe lili ndi blender yometa ubweya wambiri.Yambani kugwedeza mosalekeza pa liwiro lotsika ndipo pang'onopang'ono pezani cellulose ya hydroxyethyl mofanana ndi yankho.Pitirizani kuyambitsa mpaka ma particles onse alowetsedwa.Kenaka yikani zotetezera ndi zina zowonjezera.Monga inki, dispersing zothandizira, ammonia madzi, etc. Muziganiza mpaka onse hydroxyethyl mapadi kusungunuka kwathunthu (kukhuthala kwa kukhuthala kwa yankho kumawonjezera kwambiri) pamaso kuwonjezera zigawo zina mu chilinganizo kuchita anachita.

Okonzeka ndi chakumwa cha mayi.

Ndiko kukonzekera mowa wa mayi wokhala ndi ndende yapamwamba poyamba, kenako ndikuwonjezera ku mankhwalawo.Ubwino wa njirayi ndikuti umakhala ndi kusinthasintha kwakukulu ndipo ukhoza kuwonjezeredwa mwachindunji ku mankhwala omalizidwa, koma ayenera kusungidwa bwino.Masitepe a njirayi ndi ofanana ndi masitepe ambiri mu Njira 1;kusiyana ndi kuti palibe chifukwa mkulu-kumeta ubweya agitator, ndi ena agitators okha ndi mphamvu zokwanira kusunga mapadi hydroxyethyl uniformly omwazika mu njira angagwiritsidwe ntchito, ndi kupitiriza Kusonkhezera mpaka kwathunthu kusungunuka mu njira viscous.Komabe, ziyenera kudziwidwa kuti antifungal wothandizira ayenera kuwonjezeredwa kwa mowa wamayi posachedwa.

Popeza kuti hydroxyethyl cellulose yopangidwa pamwamba ndi ufa kapena fibrous olimba, Shandong Heda akukumbutsani kuti mumvetsere mfundo zotsatirazi pokonzekera mowa wa hydroxyethyl cellulose:

(1) Isanayambe komanso itatha kuwonjezera hydroxyethyl cellulose, iyenera kugwedezeka mpaka yankho likuwonekera bwino komanso lomveka bwino.

(2) Iyenera kusefedwa pang'onopang'ono mu mbiya yosakaniza, ndipo musagwirizane mwachindunji ndi cellulose ya hydroxyethyl ndi cellulose ya hydroxyethyl mu mbiya yosakaniza yochuluka kapena mu mawonekedwe a zotupa ndi mipira.

(3) Kutentha kwa madzi ndi pH mtengo wa madzi ali ndi ubale wodziwikiratu ndi kusungunuka kwa cellulose ya hydroxyethyl, kotero chidwi chapadera chiyenera kuperekedwa kwa izo.

(4) Osawonjezerapo zinthu za alkaline kusakaniza ufa wa hydroxyethyl cellulose usanalowedwe ndi madzi.Kukweza pH pokhapokha kunyowetsa kumathandizira kusungunuka.

(5) Momwe mungathere, onjezerani antifungal wothandizira pasadakhale.

(6) Pamene ntchito mkulu mamasukidwe akayendedwe mapadi hydroxyethyl mapadi, ndende ya mowa mayi sayenera kupitirira 2.5-3% (ndi kulemera), apo ayi mowa mayi n'kovuta kupirira.