Carboxymethyl cellulose (cmc) imapezeka pambuyo pa carbobobotthymetion of cellulose. Njira yake yamadzimadzi imagwira ntchito yolimbitsa thupi, yolumikizira mafilimu, kusungidwa kwamadzi, kutetezedwa ndi ma petroleum, ndipo amasungunuka, ndi imodzi mwazinthu zofunika kwambiri cellulose cell cellulose ndiye polysararide kwambiri komanso kuchuluka kwambiri mwachilengedwe, ndipo zolengedwa zake ndizolemera kwambiri. Tekinoloje yosinthira yamakono ya cellulose makamaka imayang'ana kwambiri komanso kutulutsa. Carboxymethyyolation ndi mtundu waukadaulo wakukazi.
katundu wathupi
Sodium Carboxymethmethmethmethmethyl cellulose (cmc) ndi ether ether ether, yokhala ndi ufa woyera kapena pang'ono ufa woyera, wopanda poizoni, wopanda poizoni; kusungunuka mosavuta m'madzi ozizira kapena madzi otentha, kupanga mawonekedwe ena a ma vicec. Njira yothetsera vutoli ndi yosagwirizana kapena pang'ono mchere, influble mu ethanol, etherpanol, isombone ndi ma sosol okhazikika, osungunuka m'madzi okhala ndi ethanol kapena acetone. Ndi hygroscopic, khola ku kuwala ndi kutentha, ma vickcy amachepetsa kutentha, yankho limakhazikika . Kutentha kosasinthika ndi 227 ℃, kutentha kwa kaboni ndi 252 ℃, ndipo kusokonezeka kwa 2% magazi ndi 71m / n.
mankhwala
Imakonzedwa kuchokera ku cellulose zochokera kwa carboxymethyl mitsempha, kuchiritsa cellulose ndi sodium hydroxide kupanga ma cellulose, kenako kubwereza monochloroceic asidi. Chigawo cha glucose chomwe chimapanga ma cellulose ali ndi magulu atatu a hydroxyl omwe amatha kusinthidwa, kotero zopangidwa ndi madigirineti osiyanasiyana zitha kupezeka. Pafupifupi, 1 MMol ya Carboxymethyl adayambitsidwa pa 1 g ya kulemera kwamadzi, komwe kumakhala kokhazikika m'madzi ndikuchepetsa acid ndi kugwiritsidwa ntchito ngati ma chromatography. Carboxymethyl PKA ili pafupifupi 4 m'madzi oyera ndi pafupifupi 3.5 mu 0,5mol / l nacl. Ndilo lofooka la acidic ndipo nthawi zambiri limagwiritsidwa ntchito polekanitsa ndi mapuloteni osalowerera komanso oyambira pa pH> 4. Magulu oposa 40% a ma hydroxyl amasinthidwa ndi magulu a Carboxymethyl, omwe amatha kusungunuka m'madzi kuti apange yankho lokhazikika la colloidal.
Cholinga chachikulu
Carboxymethyl cellulose (CMC) ndi ufa wopanda mafuta ndi ofuula mokhazikika ndipo imasungunuka mosavuta m'madzi. Njira yake yamadzimadzi ndi yosagwirizana kapena alkaline yowoneka bwino yamadzi, imasungunuka m'madzi ena osungunuka madzi ndikutenthetsedwa, komanso osabadwa. m'malo okhazikika monga Ethanol. CMC itha kugwiritsidwa ntchito ngati chomatira, Thickener, kuyimitsa wothandizira, emulsifier,, wobalalitsa, okhazikika, etc.
Sodium Carboxymethmethmethmethmethmethyl cellulose (cmc) ndiye chinthu chomwe chili ndi zotulutsa zazikulu kwambiri, zomwe zimagwiritsidwa ntchito kwambiri pakati pa cellulose, zodziwika bwino monga "mafakitale amafakitale glutate".
1. Amagwiritsidwa ntchito pobowola mafuta ndi mafuta a gasi, ndikukumba bwino ndi ntchito zina
Matope omwe ali ndi cmc amatha kupanga chitsime chimapanga keke yochepetsetsa komanso yolimba yofowoka ndi kutsika kochepa, komwe kumachepetsa kuchepa kwa madzi.
Pambuyo powonjezera masentimita, chobowola chobowola chimatha kupeza mphamvu yoyambirira yolowera, kuti matope amatha kumasula gasi wokutidwa, ndipo nthawi yomweyo, zinyalala zimatayidwa mu dzenje lamatope.
Kuchepetsa matope, monga kumwalira kwina, kumakhala ndi nthawi yochepa, ndipo kuwonjezera kwa cmc kungapangitse kuti ikhale yokhazikika komanso yopitirira nthawi yayitali.
Matope omwe ali ndi cmc samakhudzidwa ndi nkhungu, kotero sikofunikira kusunga mtengo wapamwamba kwambiri ndikugwiritsa ntchito zoteteza.
⑤ Muli ndi CMC monga mabowo okumba matope mankhwala othandizira, omwe angalimbane ndi kuwonongeka kwa mchere wambiri wosungunuka.
Matope omwe ali ndi CMC ali ndi bata wabwino ndipo amatha kuchepetsa kuchepa kwa madzi ngakhale ngati matenthedwe ali pamwamba 150 ℃.
CMC yokhala ndi mafayilo apamwamba komanso kuchuluka kwa zolowa m'malo oyenera matope okhala ndi kapa kachulukidwe kakang'ono, ndipo cmc yokhala ndi mafayilo otsika komanso kuchuluka kwa zoopsa. Kusankhidwa kwa CMC kuyenera kutsimikiza mtima monga momwe matope, dera komanso kuya.
2. Amagwiritsidwa ntchito mu mawonekedwe, kusindikiza ndi kukonza makampani ogulitsa. Makampani opanga malembawo amagwiritsa ntchito CMC ngati kugwirizanitsa kwa Worn Youningwala kwa thonje, ubweya wa silika, fiber fiber, zophatikizidwa ndi zida zina zamphamvu;
3. Kugwiritsidwa ntchito m'makampani ogulitsa mapepala akhoza kugwiritsidwa ntchito ngati pepala lokongoletsa pamapepala ndi kuthina chogwirizanitsa m'mapepala. Kuphatikiza 0.1% mpaka 0.3% cmc ku zamkati kumatha kukulitsa mphamvu ya pepala ndi 50%, kuwonjezera chopondera chopondera ndi 50%, ndikuwonjezera nthawi 4 mpaka 5.
4. CMC itha kugwiritsidwa ntchito ngati dothi lotupa mukamawonjezera zotupa; Mankhwala amtsiku ndi tsiku monga makampani opanga mano a cmc glycerin amagwiritsidwa ntchito ngati chingamu cha chingamu; Makampani opanga mankhwala amagwiritsidwa ntchito ngati thiccener ndi emulsifier; Matenda a CMC Aquious amakhumudwa ndikugwiritsidwa ntchito poyandama mchere wamchere, etc.
5. Munthawi ya ceramic, itha kugwiritsidwa ntchito ngati chomatira, pulasitiki, kuyimitsa wothandizila kukomoka, kukhazikika kwa utoto, etc.
6. Amagwiritsidwa ntchito pomanga kuti athandize kusungidwa kwamadzi ndi mphamvu
7. Amagwiritsidwa ntchito mu malonda. Makampani ogulitsa zakudya amagwiritsa ntchito CMC yokhala ndi digiri yokhazikika ngati chulu cha ayisikilimu, Zakudya zamzitini, Zakudya zophika mwachangu, ndi okhazikika, mabatani kapena otumphukira.
8. Makampani ogulitsa mankhwala amasankha CMC ndi mamasukidwe oyenera ngati piritsi, osakanikirana, ndi kuyimitsa munthu woyimilira.
Post Nthawi: Nov-03-2022