Carboxymethyl cellulose:
Ioniccellulose etheramapangidwa kuchokera ku ulusi wachilengedwe (thonje, etc. 1 Pambuyo mankhwala a alkali, pogwiritsa ntchito sodium monochloroacertatetate monga wothandizirana, ndikumachita zinthu zingapo. Mulingo wazolowa m'malo mwake 0,4 ~ 1.4, ndipo magwiridwe ake amakhudzidwa kwambiri ndi kuchuluka kwa mpweya.
(1) Carboxymethyl cellulose ndizachilendo.
. Kutentha kukapitirira 50 ° C, ma virukoniwo sangasinthe.
(3) Kukhazikika kwake kumakhudzidwa kwambiri ndi Ph. Nthawi zambiri, itha kugwiritsidwa ntchito matope a gypsum, koma osati matope a simenti. Mukakhala ndi mchere wa alkaline, zimataya mafayilo.
(4) Kusunga kwake kwamadzi kumakhala kotsika kwambiri kuposa kwa methyl cellulose. Imakhala ndi mphamvu yobwezeretsa matope a gypsum ndikuchepetsa mphamvu yake. Komabe, mtengo wa carboxymethyl cellulose ndiwotsika kwambiri kuposa wa methyl cellulose.
Cellulose alkyl ether:
Oyimira ndi methyl cellulose ndi ethyl cellulose. Mukupanga mafakitale, methyl chloride kapena ethyl chloride nthawi zambiri amagwiritsidwa ntchito ngati othandizira, ndipo zomwe zikuchitikazo zili motere:
Mu fomula, R imayimira Ch3 kapena C2h5. Alkali akukhulupirirana samakhudza kuchuluka kwa chikondwerero, komanso kumakhudzanso kugwiritsa ntchito ma alkyl halides. Kutsitsa kwa alkali, mwamphamvu hydrolysis ya alkyl halide. Pofuna kuchepetsa kumwa wolemekezeka, alkali ndende iyenera kuchuluka. Komabe, pamene alkali adakwera kwambiri, mankhwala otupa a cellulose amachepetsedwa, omwe sakugwirizana ndi momwe akudziwira, ndipo kuchuluka kwa kusintha kumachepetsedwa. Chifukwa chaichi, yuniyamu itakhazikika kapena yuni yolimba imatha kuwonjezeredwa pakuchita. Chiyandirocho chiyenera kukhala ndi chida chabwino chosangalatsa komanso chowononga kuti alkali agawiredwe kwambiri.
Methyl cellulose imagwiritsidwa ntchito kwambiri ngati thickiener, zomatira ndi zoteteza conc. imatha kugwiritsidwanso ntchito ngati lycsid ya mbewu, zowonjezera, zomata, zomata, zomata zamankhwala, zomata zamankhwala, zomata, zomata zamankhwala. Zida, ndipo kwa utoto wa latex, zosindikiza, kupanga kwa demora, ndikusakanikirana kugwiritsidwa ntchito kuwongolera nthawi ndikuwonjezera mphamvu yoyambirira, etc.
Makina a Ethyl Cellose ali ndi mphamvu yayikulu, kusinthasintha, kukana kutentha komanso kukana kuzizira. Cellulose yotsika kwambiri imasungunuka m'madzi ndikuchepetsa njira za alkaline, komanso zinthu zapamwamba kwambiri zimasungunuka m'malo okhazikika okhazikika. Imakhala ndi mgwirizano wabwino ndi mateni ndi mavidiyo osiyanasiyana. Itha kugwiritsidwa ntchito kupanga pulasitiki, mafilimu, varnishs, zomata, zokutira ndi zokutira za mankhwala, etc.
Kukhazikitsidwa kwa magulu a hydroxyalkll mu cellose alkyl alkyl alkyl amatha kusintha mawonekedwe ake, onjezerani kutentha kwake, etc. kuchuluka kwa alkyl kupita ku magulu a hydroxyaxyalkyl.
Cellulose Hydroxyalkilll ether ether ether.
Oyimira ndi hydroxyethyl cellulose ndi hydroxypropyl cellulose. Othandizira a Endoxides ndi ethylene oxide ndi propylene oxide. Gwiritsani acid kapena oyambira ngati chothandizira. Kupanga mafakitale ndikuti atengere cellulose ndi embinication Ansulose ndi EMDROTHYL Cellulose yokhala ndi magetsi okhazikika amasungunuka m'madzi onse ozizira ndi madzi otentha. Hydroxypropyl cellulose yokhala ndi mtengo wokhazikika wokha ndizongosungunuka m'madzi ozizira koma osati m'madzi otentha. Volroxyathyl cellulose ingagwiritsidwe ntchito ngati thickile yophimba la latx, chosindikizira cha mapepala, zida zomangika, zomata zam'mapepala zitha kugwiritsidwa ntchito, zida zomangika mapepala, zomata zam'mapepala zitha kugwiritsidwa ntchito, zida zomangika mapepala, zomata zam'mapepala zitha kugwiritsidwa ntchito, zida zomangika mapepala, zomata zam'mapepala zitha kugwiritsidwa ntchito, zida zomangika mapepala, zomata zam'mapepala zitha kugwiritsidwa ntchito, zida zomangika mapepala, zomata za m'matumba, zomata komanso zotchinga ma colodis. Kugwiritsa ntchito hydroxypropyl cellulose ndikofanana ndi kwa hydroxethyl cellulose. Hydroxypropyl cellulose yokhala ndi mtengo wotsika womwe ungagwiritsidwe ntchito ngati mankhwala ophatikizika, omwe amatha kukhala ndi zonse ziwiri zomangirira komanso zosokoneza.
Carboxymethylcellulose, yodalirira ngatiCmc, nthawi zambiri amakhalapo mu mtundu wa mchere wa sodium. Wothandizila ndi monochloroorbocetic acid, ndipo zomwe zikuchitikazo:
Carboxymethyl cellulose ndiwomwe amagwiritsidwa ntchito kwambiri pa cellulose. M'mbuyomu, zimagwiritsidwa ntchito makamaka ngati matope, koma tsopano zakwezedwa kuti zigwiritsidwe ntchito ngati zotsekemera, utoto, zokutidwa ndi makatoni ndi pepala, etc. Mankhwala, zodzoladzola, komanso monga zomatira zomatira za ceramics ndi nkhungu.
Celluose cellulose (pac) ndi ioniccellulose etherndipo ndi cholowa chomaliza cha carboxymethyl cellulose (cmc). It is a white, off-white or slightly yellow powder or granule, non-toxic, tasteless, easily soluble in water, forming a transparent solution with a certain viscosity, has better heat resistance stability and salt resistance, and strong antibacterial properties. Ayi. Ili ndi mawonekedwe a chiyero chachikulu, kuchuluka kwambiri kwa zolowa m'malo, ndi kufala kwa mavidiomini. Itha kugwiritsidwa ntchito ngati bindder, Thicloner, Rhelogy Modzimarif, madzi ochepetsa, omwe angagwiritsidwe ntchito kwambiri m'mafashoni, omwe angachepetse kugwiritsa ntchito kukhazikika ndikukwaniritsa zofunikira zapamwamba.
Cleonothyl cellulose ndi zomwe zimachitika pa cellose ndi acrylonitrile pansi pa catalysis a alkali:
Cleonothyl cellulose imakhala ndi dielectic yokhazikika komanso yotsika yotsika ndipo imatha kugwiritsidwa ntchito ngati matrix a matrin ndi nyali zamagetsi. Chuma chotsika cha Conathyl chitha kugwiritsidwa ntchito ngati mapepala omasulira omasulira.
Mafuta owawa kwambiri amakono, alkeyl amakono, ndipo mowa wonunkhira bwino, koma sanagwiritsidwe ntchito.
Njira zokonzekera za cellulose ether zitha kugawidwa m'njira zamadzi, njira zophera zosungunulira, njira zodulira, njira yolimba, njira yamadzimadzi, njira zopangira pamwambapa.
Post Nthawi: Apr-282024