Hydroxypyl Methylcellose (HPMC) bụ ọtụtụ ihe eji arụ ọrụ na-ejikarị ụlọ ọrụ dị iche iche n'ihi ihe mejupụtara kemịkal ya.
1. Ihe mejupụtara kemịkalụ:
a. Cellulose barbone:
HPMC bụ ihe na-eweta sellulose, nke pụtara na a na-enweta ya site na cellose, polysiccharide dị na mgbidi cells. Cellulose mejupụtara nkeji nkeji nke β-d-glucose jikọtara ọnụ site na β (1 → 4) Glycosidic Agbụ.
b. Nnọchi:
Na hpmc, a na-eme ka mmiri dị elu na-eme ka ọ dị mma nke cellulose barbone barbone barbone Backbone na-eji methyl na ìgwè hydroxyl. Ihe mkpuchi a na-eme site na mmeghachi omume nke ihe mmeghachi omume. Ogo nke dochie anya (DS) na-ezo aka na ọnụọgụ nke otu hydroxy na -echeta ya na glucose na mkpụrụ osisi cellulose. Na DS nke methyl na hydroxypyl ìgwè dị iche, nke na-emetụta arụmọrụ nke HPMC.
2. Synthesis:
a. Ether:
HPMC bụ synnesis site na mmeghachi omume nke cellose na propylene oxide na methyl chloride. Usoro a na-agụnye imegharị sellose na propylene oxide iji webata ìgwè HDDOXYLYLYLYLYLYLYLYLYLYLYLYYY mgbe ahụ methyl chloride iji webata otu methy.
b. Ogo nke njikwa ọzọ:
Enwere ike ịchịkwa DPMC nke HPMC site na idozi ọnọdụ mmeghachi omume dịka okpomọkụ, oge mmeghachi omume, na itinye uche.
3. Arụmọrụ:
a. Solubality:
HPMC na-agbanye mmiri na mmiri na ụfọdụ organic, dị ka methanol na ethanol. Agbanyeghị, sonyere sọmka ya na-ebelata na mmụba molecular na ogo nke nnọchi.
b. Fọm ihe nkiri:
HPMC na-eji ihe nkiri na-agbanwe agbanwe, mgbe etinyere na mmiri. Ihe nkiri ndị a nwere ezigbo ọrụ na akụrụngwa mgbochi.
C. viscosity:
Ngwọta HPMC na-egosipụta omume pseudoplocastic, nke pụtara na visetị ha na-agbatịkwu ọnụego ya. Viccosityzọ viscositions nke HPMC dabere na ihe dị ka itinye uche, ịdị arọ molecular, na ogo nke dochie.
d. Njide mmiri:
Otu n'ime ihe ndị dị mkpa nke HPMC bụ ike ya ijigide mmiri. Ngwongwo a di nkpa na ngwa di iche iche dika ihe eji ewu ihe, ebe eji HPMC dika ihe eji emegide.
e. Ndọghachị:
A na-ejikarị HPMC na-abụkarị ndọrọ na ọrụ dị iche iche n'ihi ikike ya iji mepụta agbụ siri ike na mkpụrụ dị iche iche.
4. Ngwa:
a. Industrylọ ọrụ ọgwụ:
Na ọgwụ, a na-eji HPMC mee ihe dị ka ihe mgbochi, ihe nkiri na-akwụ ụgwọ, na-achịkwa onye ọrụ ntọhapụ, na viscosistiotdị mbadamba.
b. Industrylọ ọrụ owuwu:
A na-agbakwunye HPMC na ngwa ọgụ ciment, akụkụ nke gypsum na tile adhesives iji meziwanye ọrụ, njigide mmiri na adresion.
C. Industrylọ ọrụ nri:
N'ime ụlọ ọrụ nri, a na-eji HPMC mee ihe dị ka nke ukwu, mmachi na emififier na ngwaahịa dị ka sacres, akwa na ice cream.
d. Ngwaọrụ Nlekọta nkeonwe:
A na-eji HPMC dị ka Troulsifier na ihe nkiri na-eme ihe nkiri na ngwaahịa nlekọta onwe ya dịka shampoos, lotion na ude.
e. Eserese na mkpuchi:
Na eserese na mkpuchi, a na-eji HPMC mee ka mmanye na-eme ka mgbasa na-akụ, njikwa viscosis na njigide mmiri na mmiri mmiri.
Hydroxypylmethylcelllose (HPMC) bụ onyinye dị iche iche na ngwa dị iche iche na-arụ ọrụ dị iche iche. Ihe mejupụtara kemịkal ya pụrụ iche, njikọta na akụrụngwa na-eme ka ọ bụrụ ihe dị mkpa na ọgwụ, ihe eji ewu, nri, ngwaahịa nlekọta na eserese / mkpuchi. Ghọta Njirimara nke HPMC na-enye ohere maka ngwa ahaziri iche na mpaghara dị iche iche, na-enye aka na iji ya na mkpa ya na usoro na-arụpụta ihe ọhụụ.
Oge post: Feb-22-2024