Chikoka cha DS pa carboxymethyl cellulose Ubwino

The Degree of Substitution (DS) ndi gawo lofunikira lomwe limakhudza kwambiri khalidwe ndi ntchito ya Carboxymethyl Cellulose (CMC). DS imatanthawuza kuchuluka kwa magulu a carboxymethyl omwe amalowetsedwa pagawo lililonse la anhydroglucose la msana wa cellulose. Mtengo wa DS umakhudza zinthu zosiyanasiyana za CMC, kuphatikiza kusungunuka kwake, kukhuthala kwake, mphamvu yosungira madzi, komanso machitidwe a rheological. Umu ndi momwe DS imakhudzira mtundu wa CMC:

1. Kusungunuka:

• Low DS: CMC yokhala ndi DS yotsika imakhala yosasungunuka m'madzi chifukwa cha magulu ochepa a carboxymethyl omwe amapezeka pa ionization. Izi zitha kupangitsa kuti kusungunuka kwapang'onopang'ono komanso nthawi yayitali ya hydration.
• High DS: CMC yokhala ndi DS yapamwamba imasungunuka m'madzi, chifukwa kuchuluka kwa magulu a carboxymethyl kumawonjezera ionization ndi dispersibility ya maunyolo a polima. Izi zimabweretsa kusungunuka mwachangu komanso kuwongolera bwino kwa hydration.

2. Makanema:

• Low DS: CMC yokhala ndi DS yotsika nthawi zambiri imawonetsa mamasukidwe otsika pamlingo womwe wapatsidwa poyerekeza ndi magiredi apamwamba a DS. Magulu ochepera a carboxymethyl amabweretsa kuyanjana kochepa kwa ionic komanso kufooka kwa maunyolo a polima, zomwe zimapangitsa kuti kuchepeko kuchepe.
• High DS: Maphunziro apamwamba a DS CMC amakonda kukhala ndi mamasukidwe apamwamba kwambiri chifukwa chakuchulukira kwa ionization komanso kulumikizana kwamphamvu kwa ma polima. Kuchuluka kwamagulu a carboxymethyl kumalimbikitsa kulumikizana kwakukulu kwa haidrojeni ndikumangika, zomwe zimapangitsa kuti pakhale mayankho apamwamba a viscosity.

3. Kusunga Madzi:

• Low DS: CMC yokhala ndi DS yotsika ikhoza kukhala kuti yachepetsa mphamvu yosungira madzi poyerekeza ndi magiredi apamwamba a DS. Magulu ochepera a carboxymethyl amachepetsa kuchuluka kwa malo omwe amapezeka kuti amange madzi ndi kuyamwa, zomwe zimapangitsa kuti madzi asamachedwe.
• High DS: Makalasi apamwamba a DS CMC nthawi zambiri amawonetsa kusungirako madzi kwapamwamba chifukwa cha kuchuluka kwa magulu a carboxymethyl omwe amapezeka kuti azitha kutulutsa madzi. Izi zimakulitsa luso la polima kuti lizitha kuyamwa ndikusunga madzi, ndikuwongolera magwiridwe ake ngati chowonjezera, chomangira, kapena chowongolera chinyezi.

4. Makhalidwe Okhudzana ndi Mafupa:

• Low DS: CMC yokhala ndi DS yotsika imakhala ndi machitidwe ambiri a Newtonian otaya, okhala ndi kukhuthala kosagwirizana ndi kumeta ubweya. Izi zimapangitsa kuti zikhale zoyenera kugwiritsa ntchito zomwe zimafuna kukhuthala kokhazikika pamitengo yambiri ya shear, monga pokonza chakudya.
• High DS: Makalasi apamwamba a DS CMC amatha kuwonetsa pseudoplastic kapena kumeta ubweya wa ubweya, pomwe kukhuthala kumachepa ndi kumeta ubweya wambiri. Katunduyu ndiwopindulitsa pamapulogalamu omwe amafunikira kupopera mosavuta, kupopera mbewu, kapena kufalitsa, monga utoto kapena zinthu zosamalira anthu.

5. Kukhazikika ndi Kugwirizana:

• Low DS: CMC yokhala ndi DS yotsika imatha kuwonetsa kukhazikika bwino komanso kugwirizana ndi zosakaniza zina muzopanga chifukwa cha ionization yake yotsika komanso kusagwirizana kwake. Izi zitha kulepheretsa kupatukana kwa gawo, mvula, kapena zovuta zina zokhazikika pamakina ovuta.
• High DS: Magiredi apamwamba a DS CMC amatha kukhala okonda kutsika kapena kupatukana kwagawo munjira zokhazikika kapena pakutentha kwambiri chifukwa cha kuyanjana kwamphamvu kwa polima. Kukonzekera bwino ndi kukonza kumafunika kuti zitsimikizire kukhazikika ndi kugwirizana muzochitika zoterezi.

Degree of Substitution (DS) imakhudza kwambiri mtundu, magwiridwe antchito, ndi kuyenera kwa Carboxymethyl Cellulose (CMC) pamapulogalamu osiyanasiyana. Kumvetsetsa mgwirizano pakati pa katundu wa DS ndi CMC ndikofunikira posankha giredi yoyenera kuti ikwaniritse zofunikira za kalembedwe ndi njira zogwirira ntchito.