Rheological Property of Methyl cellulose Solution

Hōʻike nā haʻina methyl cellulose (MC) i nā waiwai rheological kūʻokoʻa i hilinaʻi ʻia i nā mea e like me ka neʻe ʻana, ke kaumaha molekala, ka mahana, a me ka helu shear. Eia kekahi mau waiwai rheological koʻikoʻi o nā hoʻonā methyl cellulose:

1. Viscosity: Hōʻike maʻamau nā hāʻina methyl cellulose i ka viscosity kiʻekiʻe, ʻoi aku ka nui ma nā ʻano kiʻekiʻe a me nā haʻahaʻa haʻahaʻa. Hiki ke ʻokoʻa ka viscosity o nā solutions MC ma kahi ākea, mai nā haʻina haʻahaʻa-viscosity e like me ka wai a i nā gels viscous loa e like me nā mea paʻa.
2. Pseudoplasticity: Hōʻike ka methyl cellulose i ke ʻano pseudoplastic, ʻo ia hoʻi, e emi ana ko lākou viscosity me ka piʻi ʻana o ka shear rate. Ke hoʻokau ʻia i ke koʻikoʻi shear, ʻo nā kaulahao polymer lōʻihi i loko o ka hoʻonā e kulike me ke ala o ke kahe, e hōʻemi ana i ke kūʻē ʻana i ke kahe ʻana a me ka hopena i ka hana ʻoki ʻoki.
3. Thixotropy: Hōʻike ka methyl cellulose i ke ʻano thixotropic, ʻo ia hoʻi e emi ana ko lākou viscosity i ka manawa ma lalo o ke koʻikoʻi ʻoki mau. I ka pau ʻana o ka ʻāʻili ʻana, hoʻi mālie nā kaulahao polymer i loko o ka hopena i ko lākou ʻano hoʻohālikelike, e alakaʻi ana i ka hoʻihoʻi viscosity a me ka hysteresis thixotropic.
4. ʻIke ʻia ka Mahana: Hoʻopili ʻia ka viscosity o nā hopena methyl cellulose e ka mahana, me nā mahana kiʻekiʻe e alakaʻi ana i ka viscosity haʻahaʻa. Eia nō naʻe, hiki ke ʻokoʻa ka hilinaʻi o ka wela ma muli o nā kumu e like me ka neʻe ʻana a me ke kaumaha molekala.
5. Hoʻoemi ʻāhi: ʻO nā hāʻina methyl cellulose e hele i ka ʻoki ʻoki, kahi e emi ai ka viscosity i ka piʻi ʻana o ka nui o ka shear. ʻOi aku ka maikaʻi o kēia waiwai i nā noi e like me nā uhi a me nā adhesives, kahi e pono ai ka hoʻonā e kahe maʻalahi i ka wā o ka noi akā mālama i ka viscosity i ka pau ʻana o ka ʻoki.
6. Hoʻokumu ʻia ʻo Gel: Ma nā kiʻekiʻe kiʻekiʻe a i ʻole me kekahi mau māka o ka methyl cellulose, hiki i nā hopena ke hana i nā gels i ka wā hoʻomaha a i ʻole me ka hoʻohui ʻana i nā paʻakai. Hōʻike kēia mau gels i ke ʻano paʻa, me ka viscosity kiʻekiʻe a me ke kūpaʻa ʻana i ke kahe. Hoʻohana ʻia ka hana gel i nā noi like ʻole, me nā lāʻau lapaʻau, nā huahana meaʻai, a me nā mea mālama pilikino.
7. Hoʻohālikelike me nā mea hoʻohui: Hiki ke hoʻololi ʻia nā hopena methyl cellulose me nā mea hoʻohui e like me nā paʻakai, surfactants, a me nā polymers ʻē aʻe e hoʻololi i ko lākou mau waiwai rheological. Hiki i kēia mau mea hoʻohui ke hoʻololi i nā mea e like me ka viscosity, ke ʻano o ka gelation, a me ke kūpaʻa, e pili ana i nā koi kikoʻī kikoʻī.

Hōʻike nā ʻōnaehana methyl cellulose i ke ʻano rheological paʻakikī i ʻike ʻia e ka viscosity kiʻekiʻe, pseudoplasticity, thixotropy, ʻike wela, ʻoki ʻoki, a me ka hoʻokumu ʻana i ka gel. Hoʻohana kēia mau waiwai i ka methyl cellulose no nā noi like ʻole, me nā lāʻau lapaʻau, nā huahana meaʻai, nā uhi, nā mea hoʻopili, a me nā mea mālama pilikino, kahi e pono ai ka hoʻomalu pono ʻana i ka viscosity a me nā ʻano kahe.