Hydroxyethylcellulose (HEC) ndi polima yosungunuka m'madzi yomwe imagwiritsidwa ntchito kwambiri pazinthu zosamalira anthu monga shawa gel ndi sopo wamadzimadzi. Ntchito yake yayikulu ndikuchita ngati thickener, stabilizer ndi emulsifier kukonza zinthu zakuthupi ndi luso la wogwiritsa ntchito pazamankhwala.
(1). Kugwiritsa ntchito HEC mu shawa gel
Gel yosambira ndi mankhwala omwe amagwiritsidwa ntchito kwambiri posamalira anthu omwe ntchito yake yayikulu ndikuyeretsa khungu. HEC imagwira ntchito yofunika kwambiri mu gel osamba, ndipo ntchito zake ndi izi:
1.1 Kukulitsa zotsatira
HEC imatha kukulitsa kukhuthala kwa gel osamba, ndikupangitsa kuti ikhale yosasinthika komanso yamadzimadzi. Izi sizimangothandiza kukonza kapangidwe kake, komanso zimalepheretsa kuti zinthuzo zisasunthike kapena kukhazikika mu botolo. Mwa kulamulira kuchuluka kwa HEC yowonjezeredwa, kukhuthala kwa gel osamba kumatha kusinthidwa kuti akwaniritse zosowa za ogula osiyanasiyana.
1.2 Kukhazikika kwamphamvu
Monga stabilizer, HEC imatha kuletsa zinthu zomwe zimagwira mu gel osamba kuti zisalekanitse kapena kukhazikika. Ikhoza kupanga chisakanizo chofanana pakati pa gawo la madzi ndi gawo la mafuta, kuonetsetsa kuti mankhwalawa amakhalabe okhazikika panthawi yosungira ndikugwiritsa ntchito. Kukhalapo kwa HEC ndikofunikira makamaka mumadzi osambira okhala ndi mafuta ofunikira kapena zinthu zina zosasungunuka.
1.3 Mphamvu yonyowa
HEC ili ndi zinthu zabwino zowonongeka ndipo imatha kupanga filimu yowonongeka pakhungu kuti zisawonongeke madzi. Izi zimathandiza kuti khungu likhale lonyowa komanso zimapangitsa kuti ogwiritsa ntchito azikhala omasuka komanso otsekemera akamagwiritsa ntchito gel osamba. Mukagwiritsidwa ntchito limodzi ndi zokometsera zina, HEC ikhoza kupititsa patsogolo mphamvu ya mankhwala.
(2). Kugwiritsa ntchito HEC mu sopo wamadzimadzi
Sopo wamadzimadzi ndi chinthu china chodziwika bwino chomwe chimagwiritsidwa ntchito poyeretsa m'manja ndi thupi. Kugwiritsa ntchito HEC mu sopo wamadzimadzi ndikofanana ndi gel osamba, koma ilinso ndi mawonekedwe ake apadera:
2.1 Kusintha mawonekedwe a thovu
HEC imatha kukonza thovu la sopo wamadzimadzi, ndikupangitsa kuti likhale lolimba komanso lokhalitsa. Ngakhale HEC palokha si thovu wothandizila, zingathandize kusunga bata la thovu poonjezera mamasukidwe akayendedwe ndi bata la madzi. Izi zimapangitsa sopo wamadzimadzi kukhala wodzaza ndi thovu komanso wosavuta kutsuka akagwiritsidwa ntchito.
2.2 Kuwongolera madzimadzi
Sopo wamadzimadzi nthawi zambiri amayikidwa m'mabotolo a pampu, ndipo fluidity ndi imodzi mwazofunikira zake. Kukhuthala kwa HEC kumatha kuthandizira kusintha kuchuluka kwa sopo wamadzimadzi, kupangitsa kuti zisawonde kwambiri kapena zonenepa kwambiri zikatulutsidwa, zomwe zimapangitsa kuti ogwiritsa ntchito azigwiritsa ntchito mosavuta. Madzi oyenerera amathanso kupewa kuwononga kwambiri ndikuwonetsetsa kuti mlingo wogwiritsidwa ntchito nthawi iliyonse ndi wochepa.
2.3 Kupereka chidziwitso chamafuta
Panthawi yotsuka m'manja, HEC ikhoza kupereka chidziwitso cha mafuta ndi kuchepetsa kukangana kwa khungu. Izi ndizofunikira makamaka kwa ogwiritsa ntchito omwe nthawi zambiri amagwiritsa ntchito sopo wamadzimadzi, chifukwa amatha kuchepetsa ngozi ya khungu louma komanso loyipa. Makamaka mu sopo wamadzimadzi wokhala ndi zosakaniza za antibacterial, mphamvu ya mafuta ya HEC imatha kuchepetsa kukhumudwa kwapakhungu komwe kumachitika chifukwa cha zotsukira zambiri.
(3). Kusamala kuti mugwiritse ntchito
Ngakhale HEC ili ndi maubwino ambiri pazinthu zosamalira anthu, palinso zinthu zina zofunika kuziwona mukazigwiritsa ntchito:
3.1 Kuwongolera kuchuluka kwa ndalama
Kuchuluka kwa HEC yowonjezeredwa kumayenera kusinthidwa malinga ndi zofunikira za mankhwala. Kuchuluka kwa HEC kungapangitse kuti mankhwalawa akhale owoneka bwino komanso amakhudza zomwe wogwiritsa ntchito akukumana nazo; HEC yaying'ono kwambiri siyingakwaniritse kukhuthala koyenera. Kawirikawiri, kuchuluka kwa HEC yogwiritsidwa ntchito kuli pakati pa 0.5% ndi 2%, ndipo iyenera kusinthidwa malinga ndi ndondomeko yeniyeni ndi zotsatira zomwe zikuyembekezeka.
3.2 Nkhani zosungunuka
HEC iyenera kusungunuka kwathunthu m'madzi kuti igwire ntchito. Panthawi yopanga, HEC nthawi zambiri imasakanizidwa ndi zosakaniza zina musanawonjezere madzi pang'onopang'ono kuti muteteze caking kapena agglomeration. Panthawi imodzimodziyo, kusonkhezera kokwanira kumafunika panthawi ya kusungunuka kuti zitsimikizire kuti HEC imabalalika mofanana mu yankho.
3.3 Kugwirizana ndi zosakaniza zina
HEC ili ndi kukhazikika kosiyana pamitundu yosiyana ya pH, kotero kuyanjana ndi zosakaniza zina kuyenera kuganiziridwa popanga chilinganizo. Ma surfactants ena kapena zosungunulira zimatha kusokoneza magwiridwe antchito a HEC komanso kupangitsa kulephera kwazinthu. Chifukwa chake, poyambitsa zosakaniza zatsopano mu fomula, kuyezetsa kukhazikika kokwanira kuyenera kuchitidwa.
Kugwiritsa ntchito hydroxyethyl cellulose mu shawa gel ndi sopo wamadzimadzi kuli ndi zabwino zambiri. Izo sikuti bwino thupi katundu wa mankhwala, komanso kumawonjezera wosuta zinachitikira. Komabe, pogwiritsira ntchito HEC, tcheru chiyenera kulipidwa pakuwongolera kuchuluka kwa kuonjezera, kusungunuka kwa zinthu, komanso kugwirizana ndi zinthu zina kuti zitsimikizire chitetezo ndi mphamvu ya mankhwala. Ndi kupita patsogolo kosalekeza kwaukadaulo, chiyembekezo chogwiritsa ntchito HEC pazantchito zosamalira anthu chidzakhala chokulirapo.
Nthawi yotumiza: Aug-06-2024