Hydroxyethyl mapadi ndi sing'anga ndi mkulu mamasukidwe akayendedwe kalasi ya mapadi efa, ntchito monga thickener ndi stabilizer kwa zokutira madzi ofotokoza, makamaka pamene kusungirako mamasukidwe akayendedwe akayendedwe ndi mkulu ndi kukhuthala ntchito ndi otsika. Cellulose ether n'zosavuta kumwazikana m'madzi ozizira ndi pH mtengo ≤ 7, koma n'zosavuta agglomerate mu zamchere madzi ndi pH mtengo ≥ 7.5, choncho tiyenera kulabadira dispersibility wa mapadi efa.
Makhalidwe ndi ntchito za hydroxyethyl cellulose:
1. Anti-enzyme non-ionic water thickener, yomwe ingagwiritsidwe ntchito mumitundu yambiri ya pH (PH = 2-12).
2. Zosavuta kumwazikana, zitha kuwonjezeredwa mwachindunji ngati ufa wouma kapena ngati slurry pogaya ma pigment ndi fillers.
3. Kumanga kwabwino kwambiri. Lili ndi ubwino wa ntchito yopulumutsa, yosavuta kudontha ndi kupachika, ndi kukana kwabwino kwa splash.
4. Kugwirizana bwino ndi ma surfactants osiyanasiyana ndi zoteteza zomwe zimagwiritsidwa ntchito mu utoto wa latex.
5. Kukhuthala kosungirako kumakhala kosasunthika, komwe kungalepheretse kukhuthala kwa utoto wa latex kuchepa chifukwa cha kuwonongeka kwa ma enzyme ambiri a hydroxyethyl cellulose.
Makhalidwe a Hydroxyethyl Cellulose
Hydroxyethyl cellulose ether ndi polima wosasungunuka m'madzi. Ndi ufa woyera kapena wopepuka wachikasu womwe umayenda mosavuta. Nthawi zambiri sungunuka mu zosungunulira organic
1. HEC imasungunuka m'madzi otentha kapena madzi ozizira, ndipo sichimawotcha kutentha kwambiri kapena kutentha, zomwe zimapangitsa kuti zikhale ndi mitundu yambiri ya solubility ndi viscosity, ndi gelation yopanda kutentha.
2. Siionic ndipo imatha kukhala limodzi ndi ma polima osungunuka m'madzi, ma surfactants, ndi mchere. Ndi colloidal thickener yabwino yothetsera mayankho omwe ali ndi ma electrolyte apamwamba kwambiri.
3. Mphamvu yosungira madzi imakhala yowirikiza kawiri kuposa ya methyl cellulose, ndipo imakhala ndi malamulo oyendetsera bwino.
4. Poyerekeza ndi methyl cellulose yodziwika bwino ndi hydroxypropyl methyl cellulose, mphamvu yobalalika ya HEC ndiyoipa kwambiri, koma mphamvu yoteteza colloid ndi yamphamvu kwambiri (yokongola).
Kukhuthala
Zimakhudza magwiridwe antchito, monga: coatability, kukana kwa splash, kukana kutayika; mawonekedwe apadera a netiweki a cellulose ether amatha kukhazikika ufa mu dongosolo lokutira, kuchepetsa kukhazikika kwake, ndikupanga dongosolo lopeza bwino kusungirako.
Kukana madzi abwino
Pambuyo filimu ya utoto youma kwathunthu, imakhala ndi madzi abwino kwambiri. Izi zikuwonetsa makamaka kufunika kwa kukana kwake kwa madzi mu dongosolo lapamwamba la PVC. Kuchokera kuzinthu zakunja kupita ku Chinese, mu dongosolo lapamwamba la PVC, kuchuluka kwa cellulose ether komwe kumawonjezeredwa ndi 4-6 ‰.
kusungirako bwino madzi
Ma cellulose a Hydroxyethyl amatha kutalikitsa nthawi yowonekera ndikuwongolera nthawi yowumitsa kuti apange mapangidwe abwinoko a filimu; pakati pawo, kusungidwa kwa madzi kwa methyl cellulose ndi hypromellose kumatsika kwambiri pamwamba pa 40 ° C, ndipo maphunziro ena akunja amakhulupirira kuti akhoza kuchepetsedwa ndi 50% , kuthekera kwa mavuto m'chilimwe ndi kutentha kwakukulu kumawonjezeka kwambiri.
Kukhazikika bwino kuti muchepetse flocculation ya utoto
Kuchotsa sedimentation, syneresis ndi flocculation; panthawiyi, hydroxyethyl cellulose ether ndi mtundu wosakhala wa ionic wa mankhwala. Sachita ndi zina zowonjezera mu dongosolo.
Kugwirizana bwino ndi dongosolo lamitundu yambiri
Kugwirizana kwabwino kwa ma colorants, pigment ndi fillers; hydroxyethyl cellulose ether ali ndi chitukuko cha mtundu wabwino kwambiri, koma pambuyo pa kusinthidwa, monga methyl ndi ethyl, padzakhala zoopsa zobisika za kuyanjana kwa pigment.
Kugwirizana bwino ndi zida zosiyanasiyana
Itha kugwiritsidwa ntchito m'machitidwe osiyanasiyana opangira zokutira.
High antimicrobial ntchito
Oyenera kachitidwe silicate
Nthawi yotumiza: Feb-02-2023