HPMC, ma ọ bụ hydroxypropyl methylcellulose, bụ polymer vasatail ewepụtara site na cellulose, ihe sitere n'okike dị na mgbidi cell nke osisi. Ihe ndị dabere na HPMC enwetala nlebara anya dị ukwuu n'ofe ụlọ ọrụ dị iche iche n'ihi njirimara pụrụ iche ha na ngwa dị iche iche.
Okwu mmalite nke HPMC:
Hydroxypropyl methylcellulose (HPMC) bụ ọkara sịntetik, polymer soluble mmiri nke ewepụtara na cellulose. A na-ejikarị ya eme ihe dị ka onye na-ekpu mmiri, ihe nkedo, emulsifier, na onye na-emepụta ihe nkiri na ụlọ ọrụ dị iche iche, gụnyere ọgwụ, nri, ihe owuwu, ihe ịchọ mma, na ngwaahịa nlekọta onwe onye.
Njirimara nke ngwa ndị dabere na HPMC:
Mmiri Solubility: HPMC na-egosipụta ọmarịcha mmiri solubility, na-eme ka ọ dị mma maka iji ngwọta na nhazi mmiri.
Njikwa viscosity: Ọ na-eje ozi dị ka ihe na-arụ ọrụ nke ọma, na-enye ohere ịchịkwa viscosity nke ngwọta na usoro.
Njirimara Ndị Na-emepụta Ihe nkiri: HPMC nwere ike ịmepụta ihe nkiri doro anya, na-agbanwe agbanwe mgbe a mịrị amị, na-eme ka ọ baa uru na mkpuchi, ihe nkiri, na usoro nnyefe ọgwụ na-achịkwa.
Nkwụsi ike: Ihe ndị dabeere na HPMC na-enye ezigbo nkwụsi ike n'ọtụtụ pH na ọnọdụ okpomọkụ.
Biodegradability: N'ịbụ nke sitere na cellulose, HPMC bụ ihe na-emebi emebi, na-eme ka ọ bụrụ enyi gburugburu ebe obibi ma e jiri ya tụnyere polymers sịntetik.
Ngwa 3. Ngwa nke ihe ndị dabere na HPMC:
(1) Ngwa ahịa ọgwụ:
Ụdị mbadamba nkume: A na-eji HPMC eme ihe n'ọtụtụ ebe dị ka ihe na-ekekọta na nkesa na nhazi mbadamba, na-enye ntọhapụ a na-achịkwa na mgbasawanye ọgwụ.
Ụdị ihe dị n'elu: A na-eji ya na ointments, creams, na gels dị ka viscosity modifier na emulsifier.
Sistemụ mwepụta-achịkwa: Matrices dabere na HPMC na-arụ ọrụ na ntọhapụ na-adịgide adịgide yana sistemụ nnyefe ọgwụ ezubere iche.
(2) Ụlọ ọrụ nri:
Ihe na-eme ka mmiri sie ike: A na-eji HPMC eme ka ọ sie ike ma dozie ngwaahịa nri dị ka sauces, ofe, na desserts.
Ndochi abụba: Enwere ike iji ya dị ka onye na-anọchi abụba na ngwaahịa nri na-enweghị abụba ma ọ bụ abụba na-enweghị abụba iji melite ọdịdị na ọnụ.
(3) Ihe owuwu:
Mortars na Plasters: HPMC na-eme ka arụ ọrụ, nrapanye, na njide mmiri dị n'ụrọ na plasta dabere na ciment.
Tile Adhesives: Ọ na-eme ka ike nkekọ na-emeghe oge nke adhesives tile, na-eme ka arụmọrụ ha dịkwuo mma.
(4) Ihe ịchọ mma na nlekọta onwe onye:
Ngwaahịa na-elekọta ntutu: A na-etinye HPMC n'ime shampoos, conditioners, na ngwaahịa ịke maka ịdị arọ ya na imepụta ihe nkiri.
Usoro nlekọta akpụkpọ ahụ: A na-eji ya na lotions, creams, na sunscreens dị ka ihe nkwụnye na emulsifier.
Ụzọ synthesis nke HPMC:
A na-emepụta HPMC site na usoro mgbanwe kemịkalụ nke cellulose. Usoro a gụnyere etherification nke cellulose na propylene oxide na methyl chloride iji webata hydroxypropyl na methyl otu, n'otu n'otu. Enwere ike ịchịkwa ogo ngbanwe (DS) nke otu hydroxypropyl na methyl iji kwado njirimara nke HPMC maka ngwa akọwapụtara.
(5) Ọganihu na Nchọpụta Nchọpụta Na nso A:
Nanocomposites: Ndị na-eme nchọpụta na-enyocha ntinye nke nanoparticles n'ime matrices HPMC iji kwalite akụrụngwa akụrụngwa, ikike ibu ọgwụ, yana omume ntọhapụ a na-achịkwa.
Mbipụta 3D: A na-enyocha hydrogels dabeere na HPMC maka ojiji na 3D bioprinting nke anụ ahụ na usoro nnyefe ọgwụ n'ihi na ha biocompatibility na tunable Njirimara.
Ngwa Smart: A na-emezi ihe ndị sitere na HPMC iji meghachi omume na mkpali mpụga dị ka pH, okpomọkụ na ọkụ, na-eme ka mmepe nke sistemụ nnyefe ọgwụ na ihe mmetụta.
Bioinks: bioinks dabeere na HPMC na-enweta nlebara anya maka ikike ha nwere na ngwa bioprinting, na-enyere aka ịmepụta anụ ahụ dị mgbagwoju anya na ikike cell dị elu na njikwa oghere.
Ihe dabere na HPMC na-enye ọtụtụ uru n'ofe ụlọ ọrụ dị iche iche, gụnyere ọgwụ, nri, ihe owuwu na ihe ịchọ mma. Site na ngwakọta pụrụ iche nke ihe onwunwe ha, gụnyere mmiri solubility, njikwa viscosity, na biodegradability, ihe ndị dabeere na HPMC na-aga n'ihu na-eme ka mmepụta ihe ọhụrụ na sayensị ihe onwunwe, na-eme ka mmepe nke usoro nnyefe ọgwụ dị elu, nri na-arụ ọrụ, ihe owuwu na-adịgide adịgide, na anụ ahụ dị ndụ. Ka nyocha na mpaghara a na-aga n'ihu, anyị nwere ike ịtụ anya ihe ga-eme n'ihu na ngwa ọhụrụ nke ihe dabere na HPMC n'ọdịnihu dị nso.
Oge nzipu: Mee-08-2024