Hydroxypropyl methylcellulose nke kemịkalụ kwa ụbọchị bụ polima sịntetik nke e ji owu cellulose eke mee site na mgbanwe etherification. Cellulose ether bụ ihe sitere na cellulose eke. Mmepụta nke cellulose ether dị iche na polima sịntetik. Ihe kachasị mkpa ya bụ cellulose, ihe mejupụtara polymer eke. N'ihi nkọwapụta nke usoro cellulose eke, cellulose n'onwe ya enweghị ike imeghachi omume na ihe ndị na-eme ka etherification pụta. Agbanyeghị, mgbe ọgwụgwọ nke ihe na-eme ka ọzịza pụta, njikọ hydrogen siri ike dị n'etiti agbụ molekul na agbụ ahụ na-ebibi, mwepụta na-arụ ọrụ nke otu hydroxyl na-aghọ cellulose alkali reactive. Nweta cellulose ether.
Mmiri ọgwụ hydroxypropyl methylcellulose kwa ụbọchị bụ ntụ ntụ ọcha ma ọ bụ nke na-acha odo odo, ọ naghịkwa esi isi, ọ naghị atọ ụtọ ma ọ bụ na-egbu egbu. Ihe mgbaze nke enwere ike ịgbasa ngwa ngwa na mmiri oyi ma gwakọta ya na ihe ndị dị ndụ, ma ruo njupụta kachasị elu n'ime nkeji ole na ole iji mepụta mmiri viscous doro anya. Mmiri mmiri ahụ nwere ọrụ elu, nghọta dị elu, nkwụsi ike siri ike, pH anaghị emetụta ya mgbe ọ gbazere na mmiri. Ọ nwere mmetụta siri ike na mgbochi ifriizi na shampoos na gels ịsa ahụ, ọ nwekwara njigide mmiri na ezigbo ihe na-emepụta ihe nkiri maka ntutu na akpụkpọ ahụ. Site na mmụba dị nkọ nke ihe ndị bụ isi, cellulose (ihe na-egbochi ifriizi) nke eji na sachaa ákwà, shampoo, na gel ịsa ahụ nwere ike ibelata ọnụ ahịa nke ukwuu ma nweta mmetụta achọrọ.
Atụmatụ na uru nke mmiri oyi nkịtị cellulose HPMC kwa ụbọchị:
1. Ọ na-ewe obere iwe, okpomọkụ dị elu ma na-anaghị egbu egbu;
2. Nkwụsi ike nke uru pH sara mbara, nke nwere ike ime ka ọ kwụsie ike n'ókè nke uru pH 3-11;
3. Mee ka ọnọdụ ahụ ka mma;
4. Mee ka ụfụfụ dịkwuo elu, mee ka ụfụfụ kwụsie ike, mee ka akpụkpọ ahụ dịkwuo mma;
5. Mee ka usoro ahụ dị mfe ma dịkwa mma.
6. Ọ dị mfe iji, tinye ya n'ime mmiri oyi ka ọ gbasaa ngwa ngwa n'enweghị ihe ọ bụla.
Oke ojiji nke cellulose ọkwa kemịkalụ kwa ụbọchị HPMC:
A na-eji ya eme ihe ncha ákwà, ncha ntutu, ihe nhicha ahụ, ihe nhicha ihu, ude mmiri, ude mmiri, jel, toner, ihe mkpuchi ihu, ihe eji ahazi ihe, ihe nhicha ezé, ihe eji asa ọnụ, mmiri afụ ọnụ ụmụaka.
Ọrụ nke cellulose ọkwa kemịkalụ kwa ụbọchị HPMC:
N'ihe gbasara ịchọ mma, a na-ejikarị ya eme ihe maka ịchafụ, ịfụfụ, emulsification kwụsiri ike, ịgbasa, ịrapara, imeziwanye ihe nkiri na ihe eji echekwa mmiri nke ihe ịchọ mma, a na-eji ngwaahịa dị elu eme ihe maka ịchafụ, a na-ejikarị ngwaahịa dị ala eme ihe maka mgbasa nkwụsịtụ na ịmepụta ihe nkiri.
Teknụzụ HPMC cellulose kwa ụbọchị nke kemịkalụ:
Oke ike nke eriri hydroxypropyl methyl nke dabara adaba maka ụlọ ọrụ kemịkalụ kwa ụbọchị bụ 100,000, 150,000, na 200,000. N'ozuzu, a na-ejikarị oke ike eme ihe, mmetụta nke ịdị arọ bụ nke kacha mma. Dịka usoro nke gị si dị, ọnụọgụ nke mgbakwunye na ngwaahịa ahụ na-abụkarị 1,000. Akụkụ abụọ ruo akụkụ anọ kwa puku.
Mkpachapụ anya
Ọgwụ kemịkalụ hydroxypropyl methylcellulose nke a na-anaghị eji kwa ụbọchị anaghị egosi nghọta doro anya, ọ naghị adị mma ma ọ bụ na-eme ka ọ sie ike, ọ na-ebelatakwa mgbe echekwara ya ogologo oge, ụfọdụ akụkụ ya nwekwara ike ịcha ebu. Iji zere mmiri ozuzo cellulose n'oge eji ya, a ga-akpali ya tupu mmiri ahụ apụta.
Oge ozi: Eprel-14-2023