1. Njirimara Ngwaahịa
Ọdịmma kemịkalụ na mejupụtaraHydroxypylththththththylcelllose (hpmc)Ọ bụ mgbanwe ikuku na-enweta site na mgbanwe kemịkal. A na-eme ya site na sellulose site na ethylition, metylition na mmeghachi omume hydroxypropsylation. Na usoro ihe owuwu ya, a na-ejikọ ya na akpa osisi cellulose na-ejikọ site na Β-glicose nke agbụ site na agbụ Glycosididic na-ejikọ methy.
Njirimara anụ ahụ
Soro: Kimacell®hpmc na-enweghị ntụpọ na mmiri na-edozi ahụ, mana nwere ike ịpụta ngwọta compodal na mmiri oyi. A ga-ekwenye ekwenye na ọdịnaya nke hydropyyl na methyl na molekule.
Visaty: Ihe ngwọta nke HPMC nwere ụfọdụ viscosity, nke na-abawanye na mmụba nke oke molecular. Ọnọdụ viscitsose ya dị obosara ma enwere ike idozi ya dịka achọrọ iji mezuo iji chọrọ iji ubi dị iche iche.
Kwụsị ikuku: HPMC nwere nkwụsi ike ọkụ ọkụ, nwere ike iguzogide ọnọdụ okpomọkụ dị elu, na adịghị mfe ịkpụpụta n'oge kpo oku.
Njirimara arụ ọrụ
Ihe onwunwe na-eme ihe nkiri: HPMC nwere ezigbo ihe nkiri na-emepụta ihe nkiri ma nwee ike ịmepụta ihe nkiri na edo edo na nke otu, yabụ na-ejikarị ihe matriks na usoro nchịkwa ọgwụ.
Emulsification na nkwụsi ike: A na-ejikarị ya rụọ ọrụ, a na-ejikarị HPMC, kwụsịlata, ndị ọzọ na usoro ndị ọzọ iji mezi nguzozi nke usoro.
Thinchening na ebe a na-ejide mmiri: HPMC nwere ezigbo ihe ndị dị mma ma nwee ike ịbawanye viscitse nke ihe ngwọta na dị ala. Na mgbakwunye, ọ nwere ike ijigide mmiri, si otú a na-eme ka mmiri dị mma nke ngwaahịa ahụ, a na-ahụkarị na ihe ịchọ mma na kemịkalụ nke ụbọchị.
Nondicity: dị ka onye na-abụghị ngbanwe, Hpmc nwere ike ịnọgidesi ike na acid, alkali ma ọ bụ ngwọta nnu ma nwee ike ime mgbanwe.
Ebe ngwa
Industrylọ ọrụ ọgwụ: dị ka onye na-eji ọgwụ ọjọọ eme ihe, a na-eji ya eme ka a na-achịkwa ya, kwagide na-akwadebe na nkwadebe nzụdebe; A na-ejikwa ya na nkwadebe nke mbadamba, capsules na mmanụ otite maka ọgwụ.
Industrylọ ọrụ owuwu: Dịka mgbakwunye, ọ na-eme ka ọrụ owuwu nke ụlọ dị ka okwute na mkpuchi, ma na-eme ka ndọta ndọtị, na njigide mmiri na mmiri.
Industrylọ ọrụ nri: Ejiri dị ka ala, emulsifier na gelling gị n'ụlọnga, jelii, ice cream na ngwaahịa ndị ọzọ.
Industrylọ ọrụ Cosmetics: ejiri na lonitions, ude anụ ahụ, shampoos na ngwaahịa ndị ọzọ iji nye viscosity na nkwụsi ike.
2. Usoro Synthesis
Mwepụta cellulluse usoro nke hpmc kwesịrị ịmịpụta cellosuse site na eriri osisi sitere n'okike (dịka osisi, owu, wdg). N'ozuzu, adịghị ike na ihe ndị na - abụghị selluse dị ka lignin na akụrụngwa ma ọ bụ usoro eji arụ ọrụ. Usoro mmịpụta cellulose kachasị gụnyere mmanụ, ọgwụgwọ alkali, ịcha ọcha na usoro ndị ọzọ.
Mmeghachi omume nke cellulose wepụtara cellulose na-enwe mmeghachi omume na-eme mmeghachi omume ma na-agbakwunye ihe ndị dị ka methyl na hydroxyl. A na-eme mmeghachi omume nke athaline na ngwọta alkaline, ma na-ejikarị methych chloride (ch3cl), proplene oxide (c3h6o), wdg.
Mmeghachi omume methylation: A na-emeghachi omume na-aga n'ihu na nnọchite methy (dị ka methylitide chloride) ka ụfọdụ Hydyy Dị iche iche na Methyy Dị na Methy).
Mmeghachi omume HydroxyPropy: Ewebata Hydropyyl (-C3h7oh) Otu n'ime otu cellulose, ihe ndị na-ejikarị reenty na-ejikarị bụ oxide. N'ime mmeghachi omume a, a na-eji ìgwè hydroxy dị n'ime akwara mkpụrụ osisi celdrose.
Ọnọdụ mmeghachi omume
Okpomoku na oge: mmeghachi omume eliviation na-ebukarị na okpomọkụ nke 50-70 Celsius C, na oge mmeghachi omume dị n'agbata awa iri. Oke dị elu nke okpomọkụ nwere ike ibute mmebi cellulose, na obere okpomọkụ ga-eweta arụmọrụ dị ala.
Nchịkwa bara uru: Ihe a na-eme na-emeghachi omume n'okpuru ọnọdụ alkaline, nke na-enyere aka imeziwanye arụmọrụ mmeghachi omume.
Igetations itinye uche n'ihe: ịta nke onye ozi ether nwere mmetụta dị mkpa na akụrụngwa nke mmeghachi omume. Ntinye uche dị elu nwere ike iwelie ogo hydropyyl ma ọ bụ methypylyll ma ọ bụ metylation nke ngwaahịa ahụ, si otú a na-edozi arụmọrụ Kimacell®hpmc.
Ọdịmma na ihicha mgbe mmeghachi omume ahụ agwụla, ngwaahịa a na-ejikarị ya saa mmiri ma ọ bụ wepụta ya na mgbatị iji wepu ihe ndị na-agụ na site na ngwaahịa. HPMC na-asacha iji nweta ntụ ntụ ma ọ bụ ngwaahịa ikpeazụ.
Njikwa ịdị arọ molecular n'oge usoro njikọ ahụ, enwere ike ịchịkwa molecular nke HPMC nke HPMC site na idozi ọnọdụ mmeghachi omume (dị ka ọnọdụ oyi). HPMC nwere ihe dị iche iche molecular dị iche na sossion, viscosity, wdg. Enwere ike ịhọrọ ogo molecula dị ka mkpa.
Dị ka polymencomcomcomber,Hpmcbụ na-eji ọtụtụ n'ime ọgwụ, ihe owuwu, nri na ịchọ mma. Ọ dị mma karị, emulsification, njigide mmiri na ihe ndị na-akpụ akpụ ihe nkiri na-eme ka ọ bụrụ akụrụngwa dị mkpa. Zọ usoro nke HPMC bụ site na mmeghachi omume nke celluse. Ọnọdụ mmeghachi omume akọwapụtara (dị ka ọnọdụ okpomọkụ, PH bara uru, ịta ego, wdg) ga-enweta ngwaahịa ndị na-emezu ihe ndị a chọrọ. N'ọdịnihu, enwere ike ịgụnye ọrụ nke HPMC n'ọtụtụ ubi.
Post Oge: Jan-27-2025