Polypypypylthyl methymerler) bụ polymel dị iche iche na ngwa ọrụ n'ọtụtụ ụlọ ọrụ, gụnyere ọgwụ, owuwu, nri na ịchọ mma. Akụrụngwa eji arụ ọrụ na HPMC na-enweta site na isi mmalite sitere n'okike ma na-abanye usoro mgbanwe kemịkalụ iji nweta ihe ndị achọrọ.
Cellose: ntọala
Isi akụrụngwa bụ CPMC bụ Cellose, ihe dị mgbagwoju anya celbohydrate na mgbidi cells. A na-ahụkarị osisi na osisi pulp bụ isi mmalite nke cellose. A na-ebu ụzọ mesoo eriri eriri cellulose ma wepu adịghị ọcha ma mee ka ọ gbasaa ngbasa sellulose n'ime obere polsigarides. Usoro ahụ gụnyere iji acid ma ọ bụ enzymes iji kpochapụ agbụ glycosidic ugbu a na cellulose, na-ebute ụdị solulosu a na-akpọ ndị na-akpọ cellulose.
Proplenene Oide: Okwu Mmalite nke Hydropyyl
Mgbe ị nwetasịrị sellulose Ether, nzọụkwụ ọzọ na-agụnye na-ewebata Hydropyyyl dị iche iche barlulose backbone. Proplene oxide bụ ihe dị mkpa na-eji maka ebumnuche a. Na ọnụnọ nke alkaline Catlelyst, propylene oxide nke ọma na ìgwè hydroxy na yinye tilkpuru, na-ebute incorporation nke ìgwè hydroxyyyyl. Mmeghachi omume a, a na-akpọ ya nke Elitification, na-arụ ọrụ dị mkpa n'ịgbanwe akụrụngwa anụ ahụ na kemịkal nke cellulose, na-amị hydropyyl cellulose.
Methyl chloride: Tinye Methyl
Na ngbanwe ngbanwe nke na-esote, a na-eji methyl chloride mee ka kechie methyl na celly backbone. Usoro a, nke a na-akpọ metylation, na-agụnye ịmegharị sellulose na methych chloride na ọnụnọ nke ntọala. A na-agbakwunye otu methyl na hydropyyplopylcillose iji mepụta hydropyympylmethylmellose (HPMC). Oru nke nbanye (DS) na-anọchite ọnụ ọgụgụ nke hydypppyyl na Methyl unit na cellulose mgbatị na ogbo a iji mezie ihe ndị dị na ngwaahịa HPMC ikpeazụ.
Alkali: Nnọpụsị na-achịkwa vicscosity
Mgbe ogo ka lethe na methylation metylation, a na-esi na HPMC na-abụkarị alkaline. A na-eji ntọala dị ka sodium hydroxide iji kpochapụ ngwaahịa a. Nzọụkwụ a dị oke mkpa iji nweta ọkwa pH chọrọ ma welie nkwụsi ike nke HPMC. Na-agbakwunye ntọala na-enyekwa aka na-enyere aka ijikwa viscosity nke ngwọta HPMC, na-eme ha kwesịrị ekwesị maka ngwa dị iche iche ebe ihe dị mkpa na-arụ ọrụ dị mkpa, dị ka usoro iwu na ihe owuwu ọgwụ.
Ọdịmma na Mgbanwe: Na-akwado ịdị mma
Mgbe emepere emepe, ngwaahịa HPMC dị ọcha iji wepu ihe akụrụngwa ọ bụla na-agụ, ngwaahịa, ma ọ bụ adịghị ọcha. A na - enweta ụdị ọcha a site na iji usoro nzacha, na - ejide na ngwaahịa HPMC ikpeazụ na - emezu ụkpụrụ achọrọ. Ikike dị ọcha iji kpochapụ ihe ndị na-achọghị na-emetụta arụmọrụ na nchekwa nke HPMC na ngwa ya.
Ngwa nke hydroxypropyythylcelllose
A na-eji ọgwụ na-emepụta ihe: Mee nke ọma na ụlọ ọrụ ọgwụ dị ka ihe mgbochi, ihe nkiri gara aga ma na-achịkwa ndị nnọchi anya na mbadamba mbadamba. Ike ya iji mepụta fim ndị dị mma na-eme ka ọ dị mma maka mkpuchi mbadamba, na-eweta akwa mkpuchi na ntọhapụ ọgwụ.
Ihe owuwu: N'obere ụlọ ọrụ owuwu, ejiri HPMC mee ihe na ihe ndị dabeere ciment dịka ngwa agha, stucco, na tile adhesives. Ọ na-arụ ọrụ dị ka nke ukwu, mmiri na-ejigide onye na-eche nche, ma na-eme ka ọrụ na ndọghasị.
Industrylọ ọrụ nri: A na-eji HPMC mee ihe na ụlọ ọrụ nri dị ka nke ukwu, mmachi na emififier. A na-eji ngwaahịa nri dị iche iche, gụnyere sauces, akwa na ihe ụtọ.
A na-eji ihe ịchọ mma:
A na-eji agba na mkpuchi: A na-eji HPMC mee ihe dị ka nke na-acha odo odo na ntụ ntụ mmiri na agba mmiri na mkpuchi iji nyere aka mee ka oology nke usoro.
Ngwaọrụ Nlekọta nkeonwe: A na-ahụ HPMC n'ọtụtụ ngwaahịa nlekọta nke onwe gị, gụnyere nhicha na ngwaahịa nlekọta ntutu, ebe ọ na-eme dị ka ihe mkpuchi na viscosity ọgwụ.
Hydroxypylthylthylcelllose bụ polymen bara uru na ọtụtụ ngwa dị iche iche na ụlọ ọrụ dị iche iche. Nchịkọta nke HPMC na-agụnye ojiji nke cellose, propylene oxide, methych chloride, alkali na ịdị ọcha iji hụ na ngwaahịa dị elu. Ihe omuma nke hpmc si n'ike ya iji gbanwee ihe anụ ahụ na kemịkal nke cellose, na-eme ka ihe dị mkpa na ọgwụ, ihe eji eme ihe, ihe nkiri na ngwaahịa nlekọta onwe ya. Ghọta akụrụngwa akụrụngwa na usoro njikọ njikọ dị oke mkpa ịhazi HPMC iji mee ka ndị akọwapụtara na ngwa ndị akọwapụtara na usoro dị iche iche.
Oge post: Feb-19-2025