Chidule:
M'zaka zaposachedwapa, zokutira zochokera m'madzi zatchuka kwambiri chifukwa cha kusamala kwawo chilengedwe komanso kuchuluka kwa organic compound (VOC). Hydroxyethylcellulose (HEC) ndi polima wosungunuka m'madzi womwe umagwiritsidwa ntchito kwambiri munjira izi, womwe umagwira ntchito ngati chokhuthala kuti chiwonjezere kukhuthala ndikuwongolera rheology.
yambitsani:
1.1 Chiyambi:
Zophimba zochokera m'madzi zakhala njira ina yabwino yotetezera chilengedwe m'malo mwa zophimba zachikhalidwe zochokera ku zosungunulira, kuthetsa mavuto okhudzana ndi kutulutsa kwa zinthu zachilengedwe komanso kuwononga chilengedwe. Hydroxyethylcellulose (HEC) ndi chinthu chochokera ku cellulose chomwe ndi chofunikira kwambiri popanga zophimba zochokera m'madzi ndipo chimapereka mphamvu yowongolera komanso kukhazikika kwa rheology.
1.2 Zolinga:
Nkhaniyi ikufuna kufotokoza bwino momwe HEC imasungunukira mu zophimba zochokera m'madzi ndikuphunzira momwe zinthu zosiyanasiyana zimakhudzira kukhuthala kwake. Kumvetsetsa mbali izi ndikofunikira kwambiri pakukonza bwino mapangidwe a zophimba ndikukwaniritsa magwiridwe antchito omwe amafunidwa.
Hydroxyethylcellulose (HEC):
2.1 Kapangidwe ndi magwiridwe antchito:
HEC ndi chinthu chochokera ku cellulose chomwe chimapezeka chifukwa cha etherification reaction ya cellulose ndi ethylene oxide. Kulowa kwa magulu a hydroxyethyl mu msana wa cellulose kumathandizira kuti madzi ake asungunuke ndipo kumapangitsa kuti ikhale polima wofunika kwambiri m'machitidwe opangidwa ndi madzi. Kapangidwe ka mamolekyulu ndi katundu wa HEC zidzakambidwa mwatsatanetsatane.
Kusungunuka kwa HEC m'madzi:
3.1 Zinthu zomwe zimakhudza kusungunuka kwa madzi:
Kusungunuka kwa HEC m'madzi kumakhudzidwa ndi zinthu zingapo, kuphatikizapo kutentha, pH, ndi kuchuluka kwake. Zinthuzi ndi momwe zimakhudzira kusungunuka kwa HEC zidzakambidwa, zomwe zikupereka chidziwitso cha mikhalidwe yomwe imalimbikitsa kusungunuka kwa HEC.
3.2 Malire a kusungunuka:
Kumvetsetsa malire a kusungunuka kwa HEC m'madzi apamwamba ndi otsika ndikofunikira kwambiri popanga zokutira zomwe zimagwira ntchito bwino. Gawoli lidzafufuza kuchuluka kwa madzi omwe HEC imasungunuka kwambiri komanso zotsatira zake zopitirira malire awa.
Wonjezerani kukhuthala ndi HEC:
4.1 Udindo wa HEC pa kukhuthala:
HEC imagwiritsidwa ntchito ngati chokhuthala mu zophimba zochokera m'madzi kuti zithandize kuonjezera kukhuthala ndikuwongolera machitidwe a rheological. Njira zomwe HEC imakwaniritsira kulamulira kukhuthala zidzafufuzidwa, ndikugogomezera momwe imagwirira ntchito ndi mamolekyulu amadzi ndi zosakaniza zina mu kapangidwe ka zophimba.
4.2 Zotsatira za zinthu zomwe zili mu fomula pa kukhuthala kwa zinthu:
Zosintha zosiyanasiyana zopangira, kuphatikizapo kuchuluka kwa HEC, kutentha, ndi kuchuluka kwa shear, zingakhudze kwambiri kukhuthala kwa zokutira zoyendetsedwa ndi madzi. Gawoli lidzasanthula momwe zosinthikazi zimakhudzira kukhuthala kwa zokutira zomwe zili ndi HEC kuti zipereke chidziwitso chothandiza kwa opanga.
Mapulogalamu ndi zomwe zikuyembekezeka mtsogolo:
5.1 Ntchito zamafakitale:
HEC imagwiritsidwa ntchito kwambiri m'mafakitale osiyanasiyana monga utoto, zomatira ndi zotsekera. Gawoli likuwonetsa zomwe HEC imapereka pakuphimba madzi m'mafakitale awa ndikukambirana za ubwino wake poyerekeza ndi zothina zina.
5.2 Malangizo ofufuza amtsogolo:
Pamene kufunikira kwa zophimba zokhazikika komanso zogwira ntchito bwino kukupitirira kukula, malangizo ofufuza amtsogolo pankhani ya mapangidwe ozikidwa pa HEC adzafufuzidwa. Izi zitha kuphatikizapo zatsopano mu kusintha kwa HEC, njira zatsopano zopangira, ndi njira zapamwamba zofotokozera.
Pomaliza:
Pofotokoza mwachidule zomwe zapezeka, gawoli likuwonetsa kufunika kwa kusungunuka ndi kuwongolera kukhuthala kwa zophimba zogwiritsidwa ntchito m'madzi pogwiritsa ntchito HEC. Nkhaniyi itha ndi zotsatira zothandiza kwa opanga mapangidwe ndi malingaliro a kafukufuku wowonjezera kuti apititse patsogolo kumvetsetsa kwa HEC m'makina ogwiritsidwa ntchito m'madzi.
Nthawi yotumizira: Disembala-05-2023