Zotsatira za HEC pa Kumatira Kophimba

Hydroxyethyl cellulose (HEC)ndi polima yosasungunuka m'madzi yomwe si ionic. Imagwiritsidwa ntchito kwambiri mumakampani opanga zokutira chifukwa cha kusungunuka bwino kwa madzi, kukhuthala, kupanga mafilimu komanso kugwira ntchito bwino kwambiri pamwamba. Mu mapangidwe okutira, HEC sikuti imangopereka zinthu zoyenera za rheological, komanso imagwira ntchito yofunika kwambiri pakumatira kwa zokutira.

1. Makhalidwe a HEC

Mamolekyu a HEC amapangidwa ndi unyolo wa cellulose ndi zinthu zina zolowa m'malo mwa hydroxyethyl. Unyolo wake wa cellulose uli ndi kapangidwe ka polyhydroxy, komwe kumatha kupanga mgwirizano wamphamvu ndi pamwamba pa substrate yophimba kudzera mu ma bond a hydrogen, motero kumathandizira kuti chophimbacho chikhale cholimba. Kuphatikiza apo, cholowa m'malo mwa hydroxyethyl mu molekyulu ya AnxinCel®HEC chimawonjezera kusungunuka kwa madzi ake, zomwe zimapangitsa kuti chizimwazikana mofanana mu chophimbacho, motero chimakweza mtundu wa chophimbacho.

2. Njira ya HEC pa Kuphimba Kumatira

HEC mu zokutira makamaka imathandizira kumamatira kwa zokutira kudzera mu njira zotsatirazi:

Kunyowa bwino pamwamba

HEC ili ndi ntchito yabwino pamwamba, zomwe zimachepetsa kupsinjika kwa pamwamba pa chophimbacho ndikuwonjezera kunyowa kwa chophimbacho kupita pamwamba pa substrate. Kunyowa kumeneku kumathandiza chophimbacho kukhudza pamwamba pa substrate kwambiri, kuchepetsa mipata pamalo olumikizirana, motero kumawonjezera kumatirira pakati pa chophimbacho ndi substrate.

Kugwirizana kwa haidrojeni kumawonjezera mgwirizano pakati pa nkhope

Magulu a hydroxyl m'mamolekyu a HEC amatha kupanga ma hydrogen bond ndi magulu ogwira ntchito a polar pamwamba pa substrate (monga matabwa, galasi, chitsulo, ndi zina zotero). Izi zimapangitsa kuti mgwirizano weniweni pakati pa chophimbacho ndi substrate ukhale wochepa, zomwe zimapangitsa kuti chophimbacho chisamasuke ndi mphamvu zakunja.

Malamulo okhudza katundu wa rheological

HEC imakhudza kwambiri momwe rheological imagwirira ntchito, imachepetsa kusinthasintha kwake mwa kukulitsa kupaka ndikuletsa kupendekeka kwambiri kwa kupaka pamwamba pa substrate. Kapangidwe kameneka kamathandiza kupaka utoto kupanga filimu yofanana pamwamba pa substrate ndikuchepetsa kuchepa kwa kumatira komwe kumachitika chifukwa cha makulidwe osafanana a kupaka utoto.

Mphamvu yothandizira kupanga filimu

HEC imatha kukonza bwino kapangidwe ka filimu popanga filimu, kuonetsetsa kuti chophimbacho chikhale chofanana komanso chofanana chikauma. Kufanana kumeneku kumachepetsa malo olakwika a chophimbacho, motero kumawonjezera kumatirira konse.

3. Zitsanzo za kugwiritsa ntchito HEC m'zophimba zosiyanasiyana

Zophimba zomangamanga zoyendetsedwa ndi madzi

Mu zophimba zomangamanga, HEC imakulitsa kumatirira kwa zophimba ku makoma (monga simenti kapena gypsum) mwa kukhuthala, kukonza kunyowa, komanso kulimbitsa mphamvu ya filimu. Kuphatikiza apo, mphamvu za HEC zoletsa kugwa zimathandiza kuti pamwamba pa zophimbazo pakhale bwino mutagwiritsa ntchito.

Zophimba zamatabwa

Pa zophimba zamatabwa, mphamvu ya HEC yolumikizana ndi hydrogen imawonekera kwambiri. Pamwamba pa matabwa pali magulu ambiri a hydroxyl, ndipo HEC imatha kupanga mgwirizano wolimba nayo, zomwe zimapangitsa kuti chophimbacho chikhale cholimba komanso cholimba.

Zophimba zachitsulo

Mu zophimba zachitsulo, kunyowa kwa HEC kumathandiza kuti zophimbazo ziphimbe bwino pamwamba pa chitsulo ndikuwonjezera kumatirira kwa zophimbazo kudzera mu polarity. Izi ndizofunikira kwambiri mu zophimba zotsutsana ndi dzimbiri.

Zophimba zagalasi

HEC ili ndi mphamvu yabwino yolimbikitsira kumamatira pamalo osalala osakhala a polar monga galasi, ndipo mawonekedwe a polar a magulu a hydroxyl m'mamolekyu ake amatha kupangitsa kuti pakhale kusowa kwa mankhwala pakati pa pamwamba pa galasi ndi chophimbacho.

4. Zoletsa za HEC pa kuphatikizana kwa kupaka

NgakhaleHECIli ndi ubwino waukulu pakukonza kumatirira kwa kupaka utoto, ilinso ndi zofooka zina. Mwachitsanzo, HEC ndi yosavuta kuyamwa chinyezi pamalo omwe ali ndi chinyezi chambiri, zomwe zingayambitse kuchepa kwa magwiridwe antchito a kupaka utoto. Kuphatikiza apo, pa kupaka utoto kwina komwe kumafunidwa kwambiri m'mafakitale, HEC iyenera kugwiritsidwa ntchito limodzi ndi zowonjezera zina kuti igwire bwino ntchito.

Monga chowonjezera chofunikira chokhuthala komanso chopangira filimu, kugwiritsa ntchito AnxinCel®HEC mu zophimba kumathandiza kwambiri kuti zophimbazo zikhale zolimba. Zimathandiza kuti zophimbazo zigwirizane bwino ndi zinthu zosiyanasiyana kudzera munjira zosiyanasiyana monga kukulitsa kunyowa, kupanga ma hydrogen bond, komanso kukonza mawonekedwe opangira filimu. Komabe, muzogwiritsidwa ntchito zenizeni, kuchuluka kwa HEC komanso kugwirizana kwake kuyenera kukonzedwa bwino pamodzi ndi njira yophikira yeniyeni komanso malo ogwiritsira ntchito kuti apereke gawo lonse la ntchito yake.