Methylcellulose ether (MC), ma ọ bụ methylcellulose, bụ a nonionic mmiri-soluble polima nke molekụla Ọdịdị a na-etolite tumadi site na-eji dochie hydroxyl otu na cellulose na methyl otu. Mgbanwe a na-enye ohere methylcellulose ethers igosipụta uru arụmọrụ pụrụ iche na ngwa dị iche iche.
1. Mmiri solubility na thickening Njirimara
Methyl cellulose ether nwere ihe solubility dị ịrịba ama na mmiri, na ngwọta ya na-egosipụta mmetụta dị oke mma n'ime oke ịta ahụhụ. Ngwongwo a na-eme ka a na-eji ya eme ihe n'ọtụtụ ebe na-achọ ihe ndị na-arụ ọrụ nke ọma, dị ka mkpuchi, nrapado, agba na nrapado. N'ime ngwa ndị a, methylcellulose ether nwere ike ịnye viscosity kwụsiri ike na usoro ahụ ma gosipụta pseudoplasticity n'okpuru nrụgide siri ike, ya bụ, viscosity nke ngwọta na-ebelata na ọnụ ọgụgụ dị elu nke shea, nke bara uru na usoro nhazi na mkpuchi.
2. Thermal gelability
Methyl cellulose ether nwere ihe na-ekpo ọkụ, ya bụ, ọ na-etolite jel mgbe ọ na-ekpo ọkụ ma laghachi na ọdịdị mbụ ya mgbe ọ jụrụ. Ihe onwunwe a dị mkpa karịsịa na nhazi nri. Dịka ọmụmaatụ, n'oge nhazi nri na isi nri, methylcellulose ethers nwere ike ije ozi dị ka ndị na-ekpo ọkụ na-ekpo ọkụ na-ekpo ọkụ na ndị na-ahụ maka gelling, na-eme ka ọdịdị na uto nke nri dịkwuo mma ma na-edobe ọdịdị ya na mmiri.
3. Ọrụ njigide mmiri
Methyl cellulose ether nwere ikike ijide mmiri dị mma ma nwee ike idowe mmiri n'okpuru ọnọdụ gburugburu ebe obibi dị iche iche. Njirimara a dị mkpa karịsịa na ihe ụlọ. Dịka ọmụmaatụ, mgbe a na-eji ciment ciment na ngwaahịa gypsum mee ihe, ọ nwere ike igbochi oke mmiri na-efunahụ ya, si otú a na-emeziwanye arụmọrụ na-arụ ọrụ na ịkpụzi ihe. Na mgbakwunye, dị ka ihe mkpuchi mkpụrụ na ọrụ ugbo, methylcellulose ether nwekwara ike inye aka na-edobe mmiri nke ala ma melite ọnụego mkpụrụ osisi.
4. Magburu onwe film-akpụ Njirimara
Ihe na-emepụta ihe nkiri nke methylcellulose ethers na-eme ka ha mara mma na ngwa mkpuchi elu. Dịka ọmụmaatụ, na mkpuchi nke mbadamba ọgwụ, methylcellulose ethers nwere ike ịmepụta otu akwa, ihe nkiri na-enweghị mgbawa nke na-enye nchebe dị mma na ntọhapụ ọgwụ na-achịkwa. N'ime mkpuchi akwụkwọ na ụlọ ọrụ mkpuchi, a na-ejikwa ya dị ka onye na-emepụta ihe nkiri na-eme ka ọ dịkwuo mma na ịdịte aka nke ngwaahịa ahụ.
5. Nkwusioru na ihe nkesa
Methyl cellulose ether nwere ezigbo nkwụsịtụ na nke na-agbasasị ihe, na-enye ya ohere ịgbasa ihe ndị siri ike n'otu n'otu na nhazi. Ihe onwunwe a dị mkpa karịsịa na mkpuchi na agba, ebe ọ na-egbochi ịkwado pigmenti ma na-eme ka nkwụsi ike nke agba na ịdị n'otu. Na ihe ịchọ mma, ọ nwere ike hụ na a na-ekesa ihe dị iche iche na ihe ndị na-emepụta ihe, na-eme ka ọdịdị ahụ dịkwuo mma na iji mmetụta nke ngwaahịa ahụ.
6. Chemical inertness na nchekwa
Methyl cellulose ether kwụsiri ike na kemịkalụ na ọ naghị emeghachi omume na ihe ndị ọzọ kemịkalụ, na-ahụ maka nchekwa ya na ngwa dị iche iche. Nke a na-eme ka a na-eji ya eme ihe na nri, ọgwụ na ihe ịchọ mma. Dị ka ihe mgbakwunye nri, a na-ewere methylcellulose ether dị mma, enweghị nsí ọ bụla, ọ gaghịkwa agbaze ma banye n'ime ahụ. Dị ka ihe mgbakwunye ọgwụ, ọ nwere ike inye nkwụsi ike ọgwụ, njikwa ntọhapụ, ma melite uto na ilo.
7. Biocompatibility
Methyl cellulose ether nwere ezigbo biocompatibility ma dabara adaba maka iji ọgwụ na ngwaahịa nlekọta onwe onye. Dị ka onye na-emepụta ọgwụ na-emepụta ọgwụ, ọ nwere ike ịmepụta ezigbo ndakọrịta na ihe ndị na-arụ ọrụ na-eme ka ọ ghara imetụta ịdị irè nke ọgwụ ahụ, ebe ọ na-emeziwanye uto na ntọhapụ nke ọgwụ ahụ. Na ngwaahịa ophthalmic, methylcellulose ethers na-ejikwa dị ka lubricants na humectants iji melite nkasi obi na ịdị irè ngwaahịa.
8. Environmental enyi na enyi
Methyl cellulose ether sitere na cellulose eke, bụ ihe na-emebi emebi na ọ gaghị ebute mmetọ na gburugburu ebe obibi. Ya mere, n'ihe gbasara ụlọ ọrụ kemịkalụ akwụkwọ ndụ akwụkwọ ndụ ọgbara ọhụrụ na mmepe na-adigide, methylcellulose ether akwalitela ma tinye ya n'ọrụ n'ihi ịdị mma gburugburu ebe obibi ya.
9. Nkwụsi ike na ogologo oge
Methylcellulose ethers na-egosipụta nkwụsi ike dị mma karịa oke okpomọkụ yana oke pH. Ọ nwere ike ịnọgide na-enwe ihe onwunwe ya n'okpuru ọnọdụ acidic ma ọ bụ alkaline na gburugburu ebe obibi adịghị emetụta ya ngwa ngwa. Nke a na-eme ka ọ dị mma maka ọnọdụ ngwa dị iche iche ma na-ejigide ọrụ ya na arụmọrụ ya ogologo oge.
10. Versatility na obosara ngwa
Methyl cellulose ethers nwere ọrụ dịgasị iche iche ma nwee ike ịhazi ya ma gbanwee dịka ọ dị mkpa, dị ka ịhazigharị solubility ha, viscosity na njirimara arụ ọrụ site n'ịgbanwe ogo nke nnọchi na ịdị arọ molecular. Yabụ, methylcellulose ether nwere atụmanya ngwa sara mbara na owuwu, nri, ọgwụ, ihe ịchọ mma, ọrụ ugbo na mpaghara ndị ọzọ, na-egbo mkpa dị iche iche nke ụlọ ọrụ dị iche iche.
Methylcellulose ether na-adabere na mmiri ya dị mma nke solubility, ndim, gelling thermal, njigide mmiri, imepụta ihe nkiri, nkwusioru na ihe nkesa, kemịkalụ kemịkalụ, nchekwa, biocompatibility, enyi gburugburu ebe obibi, nkwụsi ike na ogologo oge na-arụ ọrụ dị mkpa na ụlọ ọrụ ọgbara ọhụrụ na ndụ kwa ụbọchị. Ntugharị ya na ngwa dị iche iche na-eme ka ọ bụrụ ihe dị mkpa n'ọtụtụ ụlọ ọrụ.
Oge nzipu: Jul-12-2024