Hydroxypyl Methylcellose (HPMC) bụ mkpụrụ ndụ dị mkpa nke emeworị nke ọma na akụrụngwa ọrụ ụlọ ọrụ ya pụrụ iche. Njirimara viscosis ya bụ otu n'ime ihe kachasị mkpa nke HPMC, na - emetụta arụmọrụ ya na ngwa dị iche iche.
1. Njirimara Njirimara nke HPMC
HPMC bụ onye na-abụghị nke na-abụghị sel sel eyether site na dochie akụkụ nke hydroxy dị iche iche (-Oh) na Methoxy Otu (-Oh2). O nwere ezigbo ekwesiri na mmiri na ụfọdụ ihe mgbaze ndị na-emegharị ahụ, na-akpụzi ihe ngwọta. Viccosity nke HPMC bụ nke kpebisiri ike site na oke molecular, ogo nke dochie anya (DS, ogo nke nnọchianya) na nkesa.
2. Mkpebi viscosis nke HPMC
A na-ejikarị viscosis nke HPMC na-ejikarị vitational na-emegharị ma ọ bụ violary vivectory. Mgbe ị tụrụ, ọ dị mkpa ka a kwụọ ụgwọ itinye uche n'ihe ngwọta, dị ka ihe ndị a nwere ike imetụta uru ọhụụ.
Ngwọta ngwọta: viscosity nke HPMC na-abawanye na mmụba nke itinye uche. Mgbe ịta nke HPMC Ngwọta dị ala, mmekọrịta dị n'etiti ụmụ irighiri ihe esighi ike na vissity dị ala. Ka ịta ahụ na-abawanye, ntinye na mmekọrịta n'etiti Molecules na-abawanye, na-akpata mmụba dị ukwuu na viscosity.
Okpomoku: viscosity nke hpmc ngwọta dị oke egwu okpomọkụ. N'ozuzu, dị ka ọnọdụ okpomọkụ na-abawanye, viscosity HPMC ga-ebelata. Nke a bụ n'ihi mmụba nke na - eduga na molecular ngagharị na mmekọrịta na - esighi ike. Ọ ga-ahụ na HPMC na ogo dị iche iche nke ihe nnọchi na ibu molecula nwere mmetụta dị iche iche ka okpomọkụ.
Achịcha Shear: Ngwọta HPMC na-egosipụta pseudoplastic (shear dịtụ) omume, ya bụ viscosity dị elu ma belata ọnụego shiee. Omume a bụ n'ihi uwe ndị na-eme mkpọtụ nke na-eme ka ọ dị elu na-agbanye mkpọrọgwụ, site na ibelata nrubanye na mmekọrịta n'etiti ọtụtụ ụmụ irighiri ihe.
3. Ihe ndị na-emetụta viscosity HPMC
Ibu Ilucular: Ibu akwara nke HPMC bụ otu n'ime ihe ndị bụ isi ihe na-ekpebi viscosity ya. N'ikwu okwu n'ozuzu, ibu buolecular ibu, nke di elu viscosity nke ihe ngwọta. Nke a bụ n'ihi na HPMC Molecules nwere oke molecular nwere ike ịbepụta netwọkụ, si na-abawanye esemokwu nke ihe ngwọta.
Ogo nke dochie anya na nkesa na nkesa na nkesa na nkesa nke methoxy na hydroxyppyyl na hpmc na-emetụtakwa viocosis ya. N'ozuzu, ogo elu nke nnọchi Methoxy (DS), na-ala ala viscosity nke HPMC, n'ihi na iwebata Methoxy nke ga-ebelata ike njikọta n'etiti irighiri akwara. Mmeghe nke ndị nnọchi anya Hydroxyl ga-abawanye mmekọrịta chiri anya, si otú ahụ sikwa pụta ụba na-aba ụba. Na mgbakwunye, nkesa nke ndị uwe ojii na-enyere aka ịhazi usoro kwụsiri ike ma mee ka viocosict nke ihe ngwọta.
PHOLULT OBUTA NYE: Ọ bụ ezie na HPMC bụ polymer na-abụghị nke Ionity na viscosis ya abaghị uru na nhọrọ nke ihe ngwọta ahụ, nke ukwuu ma ọ bụ nke a alkaline ma ọ bụ nke na-emebi emebi HPMC, si otú a na-emetụta viscosity.
4. Ubi ngwa nke HPMC
N'ihi njirimara ọhụụ nke ọdịnala, a na-ejikarị HPMC n'ọtụtụ ubi:
A na-eji ihe eji eme ihe: na-eji ihe eji eme ihe, eji HPMC mee ihe dị ka onye na-eche nche na mmiri na-ejigide arụmọrụ arụmọrụ ma nwekwuo nguzogide.
A na-eji ụlọ ọrụ ọgwụ: na ụlọ ọrụ ọgwụ, HPMC dị ka ihe mkpuchi maka mbadamba, ihe nkiri na-eme ihe nkiri maka capsules na onye na-ebu ọgwụ maka ọgwụ.
Industrylọ ọrụ nri: A na-eji HPMC mee ihe dị ka ihe dị ka nke na-akwụ ụgwọ na ịkwado ụlọ ọrụ nri maka mmepụta ice cream, jelii na mmiri ara ehi.
Ngwaahịa kemile kemile ụbọchị, na ngwaahịa kemile, na-eji ya eme ihe dị ka nke na-eme ihe dị ka nke na-eme ka ọ bụrụ ihe na-eme ka ntutu mara mma, na-acha ọcha, na-asacha ezé, wdg.
Njirimara viscosics nke HPMC bu ihe ndabere maka arụmọrụ dị mma na ngwa dị iche iche. Site na ịchịkwa molecular ogo, ogo nke nnọchi anya, na ọnọdụ ngwọta nke HPMC, enwere ike idozigharị ya iji zute mkpa ngwa dị iche iche. N'ọdịnihu, ịdị omimi na mmekọrịta dị n'etiti ihe owuwu HPMC molecular na viscosity ga-enyere aka zụlite ngwaahịa HPMC na arụmọrụ ka mma ma na-abawanye mpaghara ngwa ya.
Oge post: Jul-20-2024