Ndi polyanionic cellulose ndi polima

Polyanionic cellulose (PAC) kwenikweni ndi polima, makamaka yochokera ku cellulose.Gulu lochititsa chidwili limapeza ntchito zambiri m'mafakitale osiyanasiyana chifukwa cha mawonekedwe ake apadera komanso magwiridwe antchito.

Mapangidwe a Polyanionic Cellulose:

Polyanionic cellulose imachokera ku cellulose, yomwe ndi imodzi mwa ma polima achilengedwe omwe amapezeka kwambiri padziko lapansi.Cellulose ndi mzere wa polysaccharide wopangidwa ndi mayunitsi obwerezabwereza a glucose olumikizidwa pamodzi ndi β(1→4) glycosidic bond.Zimapanga chigawo chachikulu cha makoma a cell cell.Ma cellulose a Polyanionic amasinthidwa mapadi, pomwe magulu ena a hydroxyl a maunyolo a cellulose amalowetsedwa ndi magulu aanionic.Magulu a anionic awa nthawi zambiri amakhala ndi carboxylate (-COO⁻), sulfonate (-SO₃⁻), kapena magulu a phosphate (-PO₄⁻).Kuyamba kwa magulu a anionic kumapereka kusungunuka kwamadzi ndi zinthu zina zofunika ku polima.

Kaphatikizidwe ka Polyanionic Cellulose:

Polyanionic cellulose nthawi zambiri amapangidwa kudzera mu kusintha kwa mankhwala a cellulose.Njira imodzi yodziwika bwino imaphatikizapo kuchitapo kanthu pa cellulose ndi mankhwala a anhydride pansi pamikhalidwe yapadera kuti ayambitse magulu a anionic pamsana wa cellulose.Zomwe zimachitika komanso mtundu wa anhydride wogwiritsidwa ntchito zimatsimikizira kuchuluka kwa m'malo (DS) wamagulu aanionic pa unyolo wa cellulose.Makhalidwe apamwamba a DS amachititsa kuti madzi asungunuke kwambiri komanso kuti ntchito zina zitheke.

Makhalidwe a Polyanionic Cellulose:

Polyanionic cellulose imawonetsa zinthu zingapo zapadera zomwe zimapangitsa kuti zikhale zoyenera kugwiritsa ntchito zosiyanasiyana:

Kusungunuka kwa Madzi: Kuyambitsa magulu a anionic kumapangitsa kuti madzi asungunuke ku polyanionic cellulose, kuwalola kupanga njira zokhazikika kapena zobalalika m'madzi.Katunduyu ndi wothandiza makamaka pamagwiritsidwe ntchito pomwe makina opangira madzi amakonda.

Kusintha kwa Kukula ndi Rheology: Ma cellulose a Polyanionic amagwiritsidwa ntchito kwambiri ngati chowonjezera komanso chosinthira ma rheology m'mafakitale osiyanasiyana, kuphatikiza chakudya, mankhwala, ndi zinthu zosamalira anthu.Amapereka mamasukidwe akayendedwe ndikuwongolera kukhazikika komanso kapangidwe kazinthu.

Flocculation and Fluid Loss Control: M'mafakitale monga kubowola mafuta, polyanionic cellulose imagwiritsidwa ntchito pakutha kusuntha zolimba zomwe zayimitsidwa ndikuwongolera kutaya kwamadzimadzi.Zimathandizira kuti chitsime chikhale chokhazikika komanso chimathandizira pobowola bwino.

Kugwirizana: Ma cellulose a Polyanionic amagwirizana ndi mitundu ina yambiri yamankhwala ndi zowonjezera, zomwe zimapangitsa kuti zikhale zosunthika popanga zinthu zosiyanasiyana.Itha kuphatikizidwa mosavuta m'machitidwe osiyanasiyana popanda kuyambitsa zovuta zofananira.

Biodegradability: Ngakhale kusinthidwa kwake, polyanionic cellulose imakhalabe ndi biodegradability ya cellulose.Mkhalidwewu ndi wofunikira kuti muchepetse kuwonongeka kwa chilengedwe, makamaka m'malo omwe kutaya kuli kofunika.

Kugwiritsa ntchito Polyanionic Cellulose:

Ma cellulose a Polyanionic amapeza ntchito zosiyanasiyana m'mafakitale angapo:

Makampani a Mafuta ndi Gasi: M'gawo lamafuta ndi gasi, PAC imagwiritsidwa ntchito kwambiri ngati chowonjezera chowongolera komanso chowongolera kutayika kwamadzi mumadzi obowola.Zimathandizira kuti chitsime chikhale chokhazikika, chimawonjezera kuyeretsa maenje, ndikuwongolera kubowola bwino.

Makampani a Chakudya: M'makampani azakudya, PAC imagwira ntchito ngati chowonjezera, chokhazikika, komanso cholembera zinthu zosiyanasiyana monga sosi, mavalidwe, mkaka, ndi zokometsera.Imawonjezera kununkhira kwapakamwa, kumapangitsa bata, ndikuletsa syneresis muzakudya.

Mankhwala: Ma cellulose a Polyanionic amagwiritsidwa ntchito popanga mankhwala ngati chomangira, chophatikizira, komanso chowongolera chotulutsa m'mapiritsi ndi makapisozi.Imathandiza kugwirizanitsa mapiritsi, imatsimikizira kutulutsidwa kwa mankhwala ofanana, ndikuthandizira kutsata kwa odwala.

Zopangira Zosamalira Munthu: Muzinthu zosamalira anthu, PAC imagwiritsidwa ntchito ngati thickener, suspending agent, ndi emulsion stabilizer muzinthu monga shampoos, lotions, ndi zonona.Imawonjezera kukhuthala kwazinthu, kumapangitsanso mawonekedwe, ndikuletsa kupatukana kwa gawo.

Zida Zomangira: PAC imagwiritsidwa ntchito pantchito yomanga ngati chosungira madzi, thickener, ndi rheology modifier popanga simenti monga matope, ma grouts, ndi pulasitala.Imawongolera magwiridwe antchito, imachepetsa kutayika kwa madzi, komanso imathandizira kumamatira kumagawo.

Mphamvu Zachilengedwe ndi Kukhazikika:

Ngakhale cellulose ya polyanionic imapereka maubwino osiyanasiyana malinga ndi magwiridwe antchito ndi magwiridwe antchito, kukhudzidwa kwake kwachilengedwe kuyeneranso kuganiziridwa.Monga chochokera ku cellulose, PAC imasungabe biodegradability ya kholo lake polima.Izi zikutanthauza kuti pamikhalidwe yoyenera, cellulose ya polyanionic imatha kuphwanyidwa ndi tizilombo tating'onoting'ono kukhala zinthu zopanda vuto, zomwe zimathandizira kuti chilengedwe chikhale chokhazikika.

Kuphatikiza apo, mawonekedwe ongowonjezedwanso a cellulose monga zopangira za PAC kaphatikizidwe amapereka zabwino pakupezeka kwazinthu komanso kuchepetsa kudalira mafuta.Zoyeserera zikupitilira kukhathamiritsa kaphatikizidwe kazinthu komanso kupititsa patsogolo kuwonongeka kwa zinthu zotumphukira za polyanionic cellulose kuti achepetse kufalikira kwa chilengedwe.

polyanionic cellulose ndi polima wosunthika wopangidwa kuchokera ku cellulose, wopereka ntchito zosiyanasiyana m'mafakitale osiyanasiyana.Kapangidwe kake kapadera, kuphatikiza kusungunuka kwamadzi, kukhuthala kwamphamvu, kugwirizana, ndi kuwonongeka kwachilengedwe, zimapangitsa kuti ikhale yofunika kwambiri pamapangidwe ambiri.Ngakhale kupereka phindu lalikulu pakugwira ntchito, kuyesayesa kukupitilira kuwonetsetsa kuti polyanionic cellulose ndi zotuluka zake zimapangidwa ndikugwiritsidwa ntchito moyenera zachilengedwe, potero kulinganiza zosowa zamafakitale ndi zolinga zokhazikika.