HPMC ọ bụ sịntetik ka ọ bụ eke?

Hydroxypropylmethylcellulose (HPMC) bụ ngwa na ngwa ngwa n'ofe ụlọ ọrụ dị iche iche.Iji ghọta ihe bụ isi ya, mmadụ ga-abanyerịrị n'ime ihe mejupụtara ya, usoro nrụpụta ya na mmalite ya.

Ngwa nke HPMC:
HPMC bụ polymer synthetic nke na-enweta site na cellulose, polysaccharide sitere n'okike dị na mgbidi cell osisi.Isi iyi nke cellulose bụ osisi pulp ma ọ bụ eriri owu.Ngwakọta nke HPMC gụnyere imegharị cellulose site na usoro mmeghachi omume kemịkalụ iji mee ka ọ bụrụ ihe sitere na cellulose.

Akụkụ sịntetik nke mmepụta HPMC:
Usoro etherification:

Mmepụta nke HPMC gụnyere etherification nke cellulose na propylene oxide na methyl chloride.
N'oge usoro a, a na-ewebata otu hydroxypropyl na methyl n'ime ọkpụkpụ azụ cellulose, na-akpụ HPMC.

Ngbanwe kemịkalụ:

Mgbanwe kemịkalụ ewebatara n'oge njikọta na-ebute HPMC ịbụ nkewa dị ka ogige ihe mejupụtara ya.
Ogo nnọchi anya (DS) na-ezo aka na nkezi ọnụọgụ hydroxypropyl na methyl otu glucose n'ime agbụ cellulose.Enwere ike imezi uru DS a n'oge a na-emepụta ihe iji nweta HPMC nwere ihe ụfọdụ.

Mmepụta ụlọ ọrụ:

A na-emepụta HPMC n'ụzọ dị ukwuu n'ọtụtụ ụlọ ọrụ na-eji mmeghachi omume kemịkalụ na-achịkwa.
Usoro mmepụta ihe na-agụnye ọnọdụ ziri ezi iji nweta ihe ndị a chọrọ na ọrụ nke ngwaahịa ikpeazụ.

Isi mmalite nke HPMC:
Cellulose dị ka ihe sitere n'okike:

Cellulose bụ ihe bụ isi nke HPMC ma dị ukwuu na okike.
Osisi, karịsịa osisi na owu, bụ isi mmalite nke cellulose.Mwepụta nke cellulose sitere na isi mmalite ndị a na-ebute usoro nrụpụta HPMC.

Ọdịdị biodegradable:

HPMC bụ ihe na-emebi emebi, ihe onwunwe nke ọtụtụ ihe okike.
Ọnụnọ nke cellulose eke na HPMC na-enye aka na ihe ndị nwere ike imebi ya, na-eme ka ọ bụrụ enyi na gburugburu ebe obibi na ụfọdụ ngwa.

Ngwa nke HPMC:
ọgwụ:

A na-eji HPMC eme ihe n'ọtụtụ ebe na ụlọ ọrụ ọgwụ dị ka ndị na-ahụ maka mkpuchi, ndị na-ekekọta na matrices ntọhapụ na mbadamba mbadamba.Ndakọrịta ya na ihe ntọhapụ a na-achịkwa na-eme ka ọ bụrụ nhọrọ mbụ maka usoro nnyefe ọgwụ.

Ụlọ ọrụ ihe owuwu:

N'ime ihe owuwu, a na-eji HPMC eme ihe dị ka ihe na-ejigide mmiri, ihe na-agbapụta, na nhazi oge na ihe ndị sitere na ciment.Ọrụ ya n'ịkwalite arụmọrụ yana nrapado nke ngwa agha na plasta dị oke mkpa.

ụlọ ọrụ nri:

A na-eji HPMC eme ihe dị ka onye na-agbapụta ihe na ihe gelling na ụlọ ọrụ nri.
A na-ejikarị ya eme ihe na nri dị ka soseji, ofe na ngwa esi nri.

ịchọ mma:

N'ihe ịchọ mma, a na-ahụ HPMC n'ụdị ngwaahịa dị iche iche gụnyere ude, lotions, na gels, na-eme dị ka thickeners, stabilizers, na emulsifiers.

Ngwa mmepụta ihe:

Ọdịiche nke HPMC gbatịrị na ngwa ụlọ ọrụ dị iche iche, gụnyere nhazi agba, nrapado na nhazi akwa.

Ọkwa nchịkwa:
Ọkwa GRAS:

Na United States, a na-amata HPMC dị ka nchekwa (GRAS) maka ụfọdụ ngwa na nri site n'aka nchịkwa nri na ọgwụ ọjọọ nke US (FDA).

Ụkpụrụ ọgwụ:

HPMC eji na ngwaahịa ọgwụ ga-agbasorịrị ụkpụrụ pharmacopeial dị ka United States Pharmacopeia (USP) na European Pharmacopoeia (Ph. Eur.).

na ngwụcha:
Na nchịkọta, hydroxypropyl methylcellulose (HPMC) bụ polymer synthetic ọkara nke sitere na cellulose eke sitere na usoro mgbanwe kemịkalụ a na-achịkwa.N'agbanyeghị na ọ nwegoro nnukwu mgbanwe sịntetik, mmalite ya sitere na ihe ndị sitere n'okike dị ka pulp osisi na owu.Njirimara pụrụ iche nke HPMC na-eme ka ọ bụrụ ihe bara uru a na-ejikarị eme ihe na ọgwụ, ihe owuwu, nri, ihe ịchọ mma na ụlọ ọrụ dị iche iche.Nchikota nke cellulose eke na ngbanwe sịntetik na-enye aka na ntụgharị ya, biodegradability na nnabata nchịkwa na mpaghara dị iche iche.