Carboxymethyl cellulose (cmc) ndi nkhani yogwiritsidwa ntchito kwambiri polymer zida zomwe zimagwiritsidwa ntchito kwambiri mu chakudya, mankhwala osokoneza bongo, zodzoladzola, petroleum, mapepala ndi mafayilo ena. Ubwino wake waukulu umaphatikizapo kukula, kukhazikika, kuyimitsidwa, emulsization, kusungidwa kwamadzi komanso ntchito zambiri, motero amagwiritsidwa ntchito kwambiri m'minda yambiri. Komabe, ngakhale akuchita bwino kwambiri pamapulogalamu ambiri, CMC imakhalanso ndi zovuta ndi zolephera, zomwe zimachepetsa kugwiritsa ntchito nthawi zina kapena zimafuna njira zothetsera zovutazi.
1. Kusungunuka pang'ono
Kusungunuka kwa masentimita m'madzi ndikofunikira, koma pamikhalidwe ina, solubility kungakhale kochepa. Mwachitsanzo, CMC ili ndi malo osauka m'malo okhala ndi mchere kapena madzi ozizira kwambiri. M'dera lalitali, magetsi onyada pakati pa CMC Molecular zingwe zimachepetsedwa, zomwe zimapangitsa kuti pakhale kumbali yowonjezera, komwe kumakhudza kusungunuka kwake. Izi zikuwoneka makamaka ngati itagwiritsidwa ntchito m'madzi kapena madzi okhala ndi michere yambiri. Kuphatikiza apo, masentimita amasungunuka pang'onopang'ono m'madzi otentha ndipo amatha kutenga nthawi yayitali kuti asungunuke kwathunthu, zomwe zingayambitse kuchepa kwa mphamvu mu mafakitale.
2. Khalidwe losauka
Makulidwe a cmc amatha kukhudzidwa ndi PH, kutentha, ndi nyonga ya Ionic mukamagwiritsa ntchito. Pansi pa acidic kapena milkinine mikhalidwe, mafayilo a cmc amatha kuchepa kwambiri, akukhudza zotsatira zake. Izi zitha kukhala ndi zotsatira zoyipa pa mapulogalamu ena omwe amafuna kuti mamasukidwe osungunuka, monga kukonzekera kwa chakudya komanso kukonzekera kwa mankhwala. Kuphatikiza apo, pansi pa kutentha kwambiri, mawonekedwe a cmc amatha kugwa mwachangu, ndikuthandizira kuchepetsa mphamvu kwambiri.
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CMC ndi cellulose yosinthidwa yomwe ili ndi kuchepa kwapang'onopang'ono, makamaka m'malo achilengedwe. Chifukwa chake, CMC ili ndi yosagwira ntchito bwino ndipo imatha kudula chilengedwe china. Ngakhale CMC ndiyabwino pa biodergnation kuposa ma polimars ena, njira yonyansa imatenga nthawi yayitali. Munthawi zina zachilengedwe, izi zitha kuganizira zofunika kwambiri, zomwe anthu amalimbikitsa anthu kuti azitha kupeza zinthu zina zachilengedwe.
4. Nkhani zokhazikika zamankhwala
CMC itha kukhala yosakhazikika m'malo ena, monga acid acid, maziko olimba kapena oxidative. Kuwonongeka kapena kusintha kwa mankhwala kumatha kuchitika. Kukhazikika kumeneku kumatha kuchepetsa kugwiritsa ntchito m'malo mwa mankhwala. M'dera lozizira kwambiri, CMC ikhoza kuwonongeka kwa oxile, potero kutaya magwiridwe ake. Kuphatikiza apo, m'mayankho ena okhala ndi ma ions achitsulo, masentimita amatha kugwirizanitsa ma ions achitsulo, akukhudza kusoka kwake komanso kukhazikika.
5. Mtengo wokwera kwambiri
Ngakhale CMC ndi zinthu zabwino kwambiri, zokolola zake zimakhala zapamwamba, makamaka zinthu za masentimita ndi chiyero chachikulu kapena ntchito zina. Chifukwa chake, m'mapulogalamu ena okwera mtengo, kugwiritsa ntchito cmc sikungakhale kwachuma. Izi zithawatseketsa makampani ena kuti aganizire zotsika mtengo kwambiri posankha oundana kapena okhazikika, ngakhale njira izi sizingakhale zabwino ngati cmc pochita.
6. Pakhoza kukhala zopangidwa ndi zopanga
Kupanga kwa masentimita kwa masentimita kusiyanasiyana kwa mankhwala a cellulose, omwe amatha kupanga zopangidwa ndi cellulose, monga sodium carboxyylic, zinthu zomwe zimapangidwazo zitha kukhudza magwiridwe antchito a CMC kapena kudziwitsa zosayenera pamikhalidwe ina. Kuphatikiza apo, ma reagents mankhwala omwe amagwiritsidwa ntchito popanga opanga angakhale ndi vuto loipa pa chilengedwe ngati sichinagwiritsidwe ntchito bwino. Chifukwa chake, ngakhale cmc yokha ili ndi zinthu zambiri zabwino, zovuta za chilengedwe ndi zaumoyo zopangidwa ndi zomwe zimapangitsanso kuti zikhalenso mbali ya zomwe zikufunika kuonedwa.
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Ngakhale CMC imagwiritsidwa ntchito kwambiri mu mankhwala ndi zodzoladzola ndipo zili ndi zinthu zabwino, sizikugwirizana ndi izi sizingakhale zokwanira pamapulogalamu ena. Mwachitsanzo, nthawi zina, CMC imatha kuyambitsa khungu kapena thupi lawo siligwirizana, makamaka akamagwiritsa ntchito kukhazikika kwakukulu kapena nthawi yayitali. Kuphatikiza apo, kagayidwe kambiri ndi kuchotsa kwa cmc m'thupi kumatha nthawi yayitali, komwe sikungakhale koyenera mu njira zoperekera mankhwala osokoneza bongo.
8.. Zosakwanira Zosakwanira
Monga chotsikirana ndi stabilizer, cmc ali ndi mphamvu zochepa, zomwe zingakhale zofooka zina zomwe zimafuna nyonga yayikulu kapena kuchuluka kwambiri. Mwachitsanzo, m'mawu ena kapena zinthu zina zopangidwa ndi zofunikira zapamwamba, kugwiritsa ntchito cmc kungakhale kochepa kapena kungafunike kugwiritsidwa ntchito limodzi ndi zinthu zina kuti muwonjezere mphamvu.
Monga zinthu zambiri zogwiritsidwa ntchito kwambiri, carboxymethyl cellulose (cmc) ali ndi zabwino zambiri, koma zovuta zake sizinganyalanyazidwe. Mukamagwiritsa ntchito cmc, zinthu monga kusungunuka, kukhazikika kwa ma viwa, kukhazikika kwamankhwala, mphamvu za chilengedwe ndi mtengo ziyenera kulingaliridwa molingana ndi pulogalamu inayake. Kuphatikiza apo, kafukufuku wamtsogolo ndi chitukuko akhoza kukonzanso ma cmc ndikugonjetsa zophophonya zake, powonjezera ntchito yake momwe imagwirira ntchito m'malo ambiri.
Post Nthawi: Aug-23-2024