Methylcellulose (MC) ndi chochokera m'madzi chosungunuka cha cellulose chokhala ndi makulidwe, kupanga mafilimu, kukhazikika ndi zina. Amagwiritsidwa ntchito kwambiri m'zakudya, mankhwala, zomangamanga, zodzoladzola ndi zina. Kusungunuka kwake m'madzi kumakhala kosiyana kwambiri ndipo n'kosavuta kupanga njira yothetsera colloidal, kotero njira yoyenera yosakaniza ndiyofunika kwambiri.
1. Makhalidwe a methylcellulose
Methylcellulose sasungunuka mosavuta kutentha, ndipo kusungunuka kwake kumakhudzidwa kwambiri ndi kutentha. M'madzi ozizira, methylcellulose imatha kupanga njira yokhazikika pomwaza pang'onopang'ono; koma m'madzi otentha, imatupa mwachangu ndikusungunuka. Choncho, kutentha ndi kofunika kwambiri posakaniza methylcellulose ndi madzi.
2. Kukonzekera
Methylcellulose: Imapezeka kuchokera kwa ogulitsa mankhwala kapena ma laboratories.
Madzi: Ndibwino kuti mugwiritse ntchito madzi osungunuka kapena osungunula kuti mupewe zonyansa m'madzi olimba kuti zisakhudze kusungunuka kwa methylcellulose.
Zida Zosakaniza: Malingana ndi zosowa zanu, chosakaniza chamanja chosavuta, chosakaniza chaching'ono chothamanga kwambiri, kapena zipangizo zosakaniza mafakitale zingagwiritsidwe ntchito. Ngati ndi ntchito ya labotale yaying'ono, tikulimbikitsidwa kugwiritsa ntchito maginito oyambitsa.
3. Kusakaniza sitepe
Njira 1: Njira yomwazira madzi ozizira
Kusakaniza kwa madzi ozizira: Tengani madzi ozizira oyenera (makamaka 0-10 ° C) ndikuyika mu chidebe chosakaniza. Onetsetsani kuti madzi akutentha pansi pa 25 ° C.
Pang'onopang'ono yonjezerani methylcellulose: Pang'onopang'ono tsanulirani ufa wa methylcellulose m'madzi ozizira, oyambitsa pamene mukutsanulira. Popeza methylcellulose imakonda kufota, kuwonjezera mwachindunji kumadzi kumatha kupanga minyewa, zomwe zimakhudza ngakhale kubalalitsidwa. Choncho, liwiro lowonjezera liyenera kuyang'aniridwa mosamala kuti musawonjezere ufa wambiri nthawi yomweyo.
Sakanizani bwino: Gwiritsani ntchito chosakanizira pa sing'anga kapena liwiro lotsika kuti mumwaze methylcellulose m'madzi. Oyambitsa nthawi zimadalira ankafuna njira yomaliza mamasukidwe akayendedwe ndi mtundu wa zida, ndipo zambiri kumatenga mphindi 5-30. Onetsetsani kuti palibe ming'alu kapena nsonga za ufa.
Kutupa: Pamene akuyambitsa, methylcellulose pang'onopang'ono imayamwa madzi ndi kutupa, kupanga colloidal solution. Izi zitha kutenga nthawi, kutengera mtundu ndi kuchuluka kwa methylcellulose yomwe imagwiritsidwa ntchito. Kukhuthala kwapamwamba kwa methylcellulose kumatenga nthawi yayitali.
Siyani kuti tikhwime: Kukondoweza kukatha, ndi bwino kusiya kusakaniza kukhala kwa maola angapo kapena usiku wonse kuti methylcellulose isungunuke ndi kutupa. Izi zikhoza kupititsa patsogolo homogeneity ya yankho.
Njira 2: Njira ziwiri zamadzi otentha ndi ozizira
Njirayi ndi yoyenera kwa ma viscous methylcellulose omwe ndi ovuta kumwaza mwachindunji m'madzi ozizira.
Premix yamadzi otentha: Kutenthetsa gawo la madzi ku 70-80 ° C, kenaka muthamangitse mofulumira m'madzi otentha ndikuwonjezera methylcellulose. Panthawiyi, chifukwa cha kutentha kwakukulu, methylcellulose idzakula mofulumira koma sichidzasungunuka kwathunthu.
Kusungunuka kwa madzi ozizira: Pamene mukupitiriza kusonkhezera madzi otentha kwambiri, onjezerani pang'onopang'ono madzi ozizira otsalawo mpaka madziwo atsike mpaka kutentha kwabwino kapena pansi pa 25°C. Mwanjira iyi, methylcellulose yotupa imasungunuka m'madzi ozizira ndikupanga njira yokhazikika ya colloidal.
Kukondolera ndi kuyimirira: Pitirizani kusonkhezera mukaziziritsa kuonetsetsa kuti yankho liri lofanana. Kusakaniza kumasiyidwa kukhala mpaka kusungunuka kwathunthu.
4. Njira zodzitetezera
Kutentha kowongolera: Kusungunuka kwa methylcellulose kumakhudzidwa kwambiri ndi kutentha. Nthawi zambiri amamwaza bwino m'madzi ozizira, koma amatha kupanga gel osagwirizana m'madzi otentha. Pofuna kupewa izi, nthawi zambiri tikulimbikitsidwa kugwiritsa ntchito njira yobalalitsira madzi ozizira kapena njira yapawiri yotentha ndi yozizira.
Pewani kuphatikizika: Popeza methylcellulose imayamwa kwambiri, kuthira ufa wambiri mwachindunji m'madzi kumapangitsa kuti pamwamba pawonjezeke mwachangu ndikupanga zingwe mkati mwa phukusi. Izi sizimangokhudza kusungunuka, komanso kungayambitsenso kukhuthala kosagwirizana kwa chinthu chomaliza. Choncho, onetsetsani kuwonjezera ufa pang'onopang'ono ndikugwedeza bwino.
Kuthamanga kothamanga: Kuthamanga kwambiri kumatha kuyambitsa thovu zambiri, makamaka munjira zokhala ndi mamasukidwe apamwamba. Ma Bubbles adzakhudza ntchito yomaliza. Choncho, kugwiritsa ntchito otsika-liwiro akuyambitsa ndi bwino kusankha pamene muyenera kulamulira mamasukidwe akayendedwe kapena kuwira voliyumu.
Kukhazikika kwa methylcellulose: Kuchuluka kwa methylcellulose m'madzi kumakhudza kwambiri kusungunuka kwake ndi mayankho ake. Nthawi zambiri, pazigawo zotsika (zosakwana 1%), yankho lake ndi lopyapyala komanso losavuta kusuntha. Pazowonjezereka (zokulirapo kuposa 2%), yankho limakhala lowoneka bwino kwambiri ndipo limafunikira mphamvu yamphamvu poyambitsa.
Nthawi yoyimilira: Pokonzekera yankho la methylcellulose, nthawi yoyimirira ndiyofunikira. Izi sizimangolola kuti methylcellulose isungunuke kwathunthu, komanso imathandizira kuti thovu mu njira yothetsera vutoli lizimiririka mwachibadwa, kupewa mavuto a kuwira muzotsatira.
5. Maluso apadera pakugwiritsa ntchito
M'makampani a chakudya, methylcellulose nthawi zambiri amagwiritsidwa ntchito kupanga thickeners, stabilizers kapena colloids, monga ayisikilimu, mkate, zakumwa, ndi zina zotero. Muzogwiritsira ntchito, sitepe yosakanikirana ya methylcellulose ndi madzi imakhudza mwachindunji mkamwa ndi kapangidwe ka mankhwala omaliza. Kuchuluka kwa chakudya cha methylcellulose nthawi zambiri kumakhala kochepa, ndipo chidwi chapadera chiyenera kuperekedwa pakuyeza molondola komanso kuwonjezera pang'onopang'ono.
M'munda wamankhwala, methylcellulose nthawi zambiri imagwiritsidwa ntchito ngati chosokoneza pamapiritsi kapena ngati chonyamulira mankhwala. Pankhaniyi, kukonzekera mankhwala amafuna mkulu kwambiri njira homogeneity ndi bata, choncho tikulimbikitsidwa kulamulira chomaliza mankhwala khalidwe ndi pang`onopang`ono kuonjezera mamasukidwe akayendedwe ndi optimizing yogwira mtima zinthu.
Kusakaniza methylcellulose ndi madzi ndi njira yomwe imafuna kuleza mtima ndi luso. Poyang'anira kutentha kwa madzi, dongosolo la kuwonjezera ndi kuthamanga kwachangu, yunifolomu ndi yokhazikika yothetsera methylcellulose ingapezeke. Kaya ndi njira yobalalitsira madzi ozizira kapena njira yapawiri yotentha ndi yozizira, chofunikira ndikupewa kuphatikizika kwa ufa ndikuwonetsetsa kuti kutupa ndi kupumula kokwanira.
Nthawi yotumiza: Sep-30-2024