Katundu Wachilengedwe Pathupi ndi Mankhwala ndi Kugwiritsa Ntchito Ma cellulose Ethers
Ma cellulose ethers ndi gulu la ma polima osungunuka m'madzi omwe amachokera ku cellulose, polima yachilengedwe yomwe imapezeka m'makoma a cellulose. Ma cellulose awa amagwiritsidwa ntchito kwambiri m'mafakitale osiyanasiyana chifukwa cha mawonekedwe awo apadera komanso kusinthasintha. Nazi zina mwazinthu zakuthupi ndi zamankhwala zama cellulose ethers limodzi ndi ntchito zake wamba:
- Katundu Wathupi:
- Maonekedwe: Ma cellulose ether nthawi zambiri amawoneka ngati oyera mpaka oyera kapena ma granules.
- Kusungunuka: Zimasungunuka m'madzi ndi zosungunulira zina za organic, zomwe zimakhala zomveka bwino komanso zowoneka bwino.
- Hydration: Ma cellulose ethers amatha kuyamwa ndikusunga madzi ochulukirapo, zomwe zimapangitsa kutupa ndi kupanga ma gel.
- Viscosity: Amawonetsa kukhuthala, kukhuthala kwake kumasiyanasiyana malinga ndi mtundu ndi kulemera kwa cellulose ether.
- Kupanga Mafilimu: Ma cellulose ether ena amakhala ndi mawonekedwe opangira filimu, kuwalola kupanga mafilimu osinthika komanso ogwirizana akaumitsa.
- Kukhazikika kwa Matenthedwe: Ma cellulose ethers nthawi zambiri amawonetsa kukhazikika kwamafuta, ngakhale kuti zinthu zinazake zimatha kusiyanasiyana malinga ndi mtundu wake komanso momwe zimapangidwira.
- Chemical Properties:
- Magulu Ogwira Ntchito: Ma cellulose ethers amakhala ndi magulu a hydroxyl (-OH) pamsana wa cellulose, omwe nthawi zambiri amalowetsedwa ndi magulu a ether monga methyl, ethyl, hydroxyethyl, hydroxypropyl, kapena carboxymethyl.
- Degree of Substitution (DS): Gawoli likutanthauza kuchuluka kwamagulu a ether pa unit ya anhydroglucose mu tcheni cha cellulose polima. Zimakhudza kusungunuka, kukhuthala, ndi zina za cellulose ethers.
- Kukhazikika Kwama Chemical: Ma cellulose ethers nthawi zambiri amakhala okhazikika pansi pa pH yamitundu yosiyanasiyana ndipo amawonetsa kukana kuwonongeka kwa tizilombo.
- Crosslinking: Ma ether ena a cellulose amatha kulumikizidwa ndi mankhwala kuti apititse patsogolo makina awo, kukana madzi, ndi zina.
- Kagwiritsidwe Ntchito Kamodzi:
- Makampani Omangamanga: Ma cellulose ethers amagwiritsidwa ntchito kwambiri ngati zokhuthala, zosunga madzi, ndi zosinthira rheology muzinthu zomangira monga matope, ma grouts, zomatira, ndi zinthu zopangidwa ndi gypsum.
- Mankhwala: Amagwiritsidwa ntchito ngati omangira, olekanitsa, opanga mafilimu, ndi osintha mawonekedwe a viscosity popanga mankhwala, kuphatikiza mapiritsi, makapisozi, zoyimitsidwa, ndi zopaka pamutu.
- Makampani a Chakudya: Ma cellulose ether amagwira ntchito monga zokhuthala, zokhazika mtima pansi, zokometsera zinthu, ndi zosinthira zinthu m’zakudya zosiyanasiyana, kuphatikizapo sosi, zovala, mkaka, ndi zinthu zowotcha.
- Zopangira Zosamalira Munthu: Amagwiritsidwa ntchito muzodzoladzola, zimbudzi, ndi zinthu zosamalira anthu monga ma shampoos, zowongolera, mafuta odzola, ndi zopakapaka chifukwa chokhuthala, kukhazikika, komanso kupanga mafilimu.
- Utoto ndi Zopaka: Ma cellulose ethers amakhala ngati zokhuthala, zosintha ma rheology, ndi zokhazikika mu utoto wamadzi, zokutira, ndi zomatira, zomwe zimakulitsa magwiridwe antchito ndi magwiridwe antchito.
Ma cellulose ethers amapeza ntchito zofala m'mafakitale ambiri chifukwa cha kusiyanasiyana kwawo komanso magwiridwe antchito. Kuthekera kwawo kusintha kukhuthala, kukonza mawonekedwe, kukhazikika kwa mapangidwe, ndikupereka luso lopanga filimu kumawapangitsa kukhala zowonjezera pazogulitsa ndi njira zambiri.
Nthawi yotumiza: Feb-11-2024