HPMC (hydropopyylthylthylthylmcelllose) bụ ihe ndị dị elu na-eji ọtụtụ ihe eji arụ ụlọ, ọgwụ, nri, mkpuchi na ubi ndị ọzọ. Dị ka ihe nrapado, a na-eji HPMC mee ihe n'ọtụtụ arụmọrụ ya kachasị mma, mmiri solubility, na-emekarị na nkwụsi ike. Agbanyeghị, na ngwa ndị bara uru, iji meziwanye arụmọrụ dị mma nke nrapado, karịsịa nkwụsi ike, usoro usoro na ụzọ teknụzụ, ọ dị mkpa ka ewere ya.
1. Njirimara njirimara nke HPMC
HPMC bụ sellulose eut cellulose nke sitere na ngbanwe kemịkal. Ihe omumu ya nwere hydroxy na methoxy otu, nke n'enye ya ezigbo mmiri sonyere mmiri na ihe ndi n'egwuregwu. Na usoro nhazi nke HPMC na-enyere ya aka iwelie viscosit nke ihe ngwọta ma na-etolite ihe nkiri iji bulie ike nke njikọ. HPMC nwekwara ezigbo njin nkwakọ, nke na-enyere ya aka ịnọgide na-arụ ọrụ dị mma na ọnọdụ iru mmiri, si otú ahụ wee na-arụ ọrụ oge nrapado.
2. Mkpa iji melite nkwụsi ike nke HPMC
Site na iji adhesives, nkwụsi ike bụ otu n'ime ihe ndị bụ isi na-emetụta mmetụta ya n'ezie. Nkwụsi ike nke adhesive nwere ike ibute mgbanwe vissitse, ndọpa, stratification na nsogbu ndị ọzọ, si otú a na-emetụta arụmọrụ na ịdị ogologo nke ngwaahịa ahụ. Ya mere, otu esi eme ka nkwụsi ike nke HPMC dị ka ihe mgbapụta bụ ihe dị mkpa iji hụ na ọ nwere ike ịga n'ihu na-arụ ọrụ na gburugburu dị iche iche.
3. Tozọ iji meziwanye nkwụsi ike nke HPMC
3.1 na-achịkwa ngbanwe molecular
Ibu molecular nke HPMC nwere mmetụta dị ukwuu na solublity, mmetụta na nkwụsi ike na mmiri. Site na ịchịkwa ihe dị oke ibu nke Hpmc, enwere ike idozigharị viscosise na nke ihe nkiri ya. Ibu dị elu molecular na-enye ikike viccosity dị elu ma nwee ike ịkpata ike dị ike, mana nwere ike ibute ihe isi ike na mgbasa. Ya mere, ọ dị mkpa ịhọrọ ogo dị arọ site na ngwa achọrọ iji mezie arụmọrụ na nkwụsi ike nke nrapado.
3.2 na-emeli usoro
Na usoro, a na-ejikarị HPMC na ihe ndị ọzọ dị ka ihe ndị ọzọ, dị ka fọdụrụnụ, fillers, ndị ọrụ na njikọta na nchekwa. Site na ezi ekwenti ekwenti, nkwụsi ike nke addesives HPMC nwere ike ịbawanye mma. Ọmụmaatụ:
Nhọrọ nke kpụrụ akpụ: ndị na-eme ihe kwesịrị ekwesị nwere ike ịbawanye mgbanwe nke adhesives hpmc ma belata ihe nrapado nke na-efe efe n'oge a na-eme mkpọtụ.
Nhọrọ nke filter: fillers na-egwu na-ejupụta na iji aka na-akwado ya, mana overgabiga ma ọ bụ na-ekwesịghị ekwesị ma ọ bụ nsogbu na-adalata. Ezi uche dị na ya na njikwa nke ego nke fillet eji ga-enyere aka melite nkwụsi ike nke sistemụ ahụ.
Agbakwunye nke nnabata na-agakọ: Njikwa kwesịrị ekwesị nwere ike ịkwalite ihe nkiri na nkwụsi ike nke hpmc ma gbochie viscosity na-agbada n'ihi ihe ndị dị na mpụga (dịka mgbanwe okpomọkụ) n'oge.
3.3 mmezi nke nkwụsi ike
HPMC nwere ezigbo sorbulity na mmiri, mana nchekwa ogologo oge nke ihe ngwọta nwere ike ibute ọnọdụ nkwụsi ike, dị ka mmebi na mgbasawanye ala. Iji meziwanye nkwụsi ike nke ngwọta HPMC, enwere ike iwere usoro ndị a:
Imezi nke POT: HPMC nwere ezigbo nkwụsi ike na ịnọpụ iche na mpaghara alkaline na-esighi ike. Uru dị ala ma ọ bụ oke oke nwere ike ibute ihe owuwu ya iji mebie ma ọ bụ ihe anụ ahụ na-agbada. Ya mere, uru plọ uru nke ihe ngwọta kwesịrị ka edobe ya n'okpuru 6-8 na usoro.
Ojiji nke nchekwa: Ngwọta Olu nke HPMC nwere ike ịnwe ọgwụ nje microbial, na-eduga na mmebi, ebu na nsogbu ndị ọzọ. Site na ịgbakwunye ihe kwesịrị ekwesị nke usoro kwesịrị ekwesị (dịka sodium benoate ma ọ bụ potassium sonate), oge nchekwa nke HPMC Well na-enwe ike belata na mmetụta nke microorganisms microorganisms.
Na-achịkwa ọnọdụ okpomọkụ: Ọnọdụ okpomọkụ nwekwara mmetụta dị mkpa na nkwụsi ike nke ngwọta HPMC. Okpomoku di elu nwere ike ime ka mmebi nke hpmc, nke bu ebe obibi na viscosity. Ya mere, n'oge nchekwa na iji ya, ekwesịrị izere ikpuchi ọnọdụ okpomọkụ dị elu iji legide nkwụsi ike ya.
3.4 melite Njirimara AKA NA-EGO
N'oge ojiji ogologo oge, ihe nrapado ahụ nwere ike ịgha afọ n'ihi ihe dịka ọkụ, oxygen, na okpomọkụ na gburugburu ebe obibi. Iji meziwanye ihe mgbochi na-eme ka nsogbu HPMC nke HPMC adhesives, a ga-ewepụta usoro ndị a:
Dinggbakwunye antioxidants: antioxidants nwere ike igbu oge oxiditive nke HPMC ma jikwaa arụmọrụ nke na-akwụsi ike na nkwụsi ike ya.
Ihe mgbakwunye na-emegide Ultraviolet: Na gburugburu ọkụ, ụzarị ọkụ ultraviolet nwere ike ibute ụdọ nke hpmc ụgbụ Hpmc, si otú a belata arụmọrụ nke njikọ ya. Site na ịgbakwunye ego kwesịrị mgbochi nke mgbochi ultraviolet, ike ọgwụ mgbochi nke HPMC nke ọma ka mma.
Ọgwụgwọ Njikọ: Njikọ Cross-Njikọ nwere ike ịkwalite mmekọrịta dị n'etiti HPMC Molecules ma mepụta usoro netwọdi ya, si otú ahụ na-eme ka okpomọkụ ya guzogide na ike ọgwụgwụ.
3,5 nke Surractants
N'ọnọdụ ụfọdụ, iji meziwanye nkwụsi ike na ihe nrịba ama nke HPMC adresives, enwere ike ịgbakwunye ego kwesịrị ekwesị. Ndị nwere ike imeziwanye mgbakwunye na ịdị n'otu nke hpmc site na -ebelata esemokwu elu nke ihe ngwọta ya, ma gbochie ya agglomerating ma ọ bụ na-eme ka ọ na-eme ihe. Karịsịa na nnukwu ọdịnaya usoro, iji ezi uche nwere ike bulite arụmọrụ na nkwụsi ike nke adhesives.
3.6 Okwu Mmalite nke Nanomaterials
N'afọ ndị na-adịbeghị anya, Nanotechnology emewo nke ọma na imezi arụmọrụ. Mmepe nke Nano-Silicon Dioxide na Nano-Zink Oxide, n'ime HPMC adhhanives nwere ike ime ka nje ha dịkwuo mma, na-eme ka ihe ndị na-eme ka ihe dị mma na-eme ka ọ dịkwuo mma. Nanomaterials ndị a enweghị ike ịhazi ike anụ ahụ nke nrapado, kamakwa ọzọ meziwanye nkwụsi ike nke hpmc site na nsonaazụ ha pụrụ iche.
Dịka nrapado, ejirila HPMC mee ihe n'ọtụtụ ụlọ ọrụ n'ihi arụmọrụ ya dị mma. Agbanyeghị, imeziwanye nkwụsi ike ya bụ isi ihe iji hụ na ọ nwere ike gaa n'ihu na-ekere òkè n'okpuru ọnọdụ ngwa dị iche iche. Site na njikwa ezi uche dị na nke nkesa molecular, njikwacha nke usoro, mmelite nke ndọtị nke nanomativatents, ka ọ nwee ike ịnọgide na-enwe mmetụta dị mma n'okpuru gburugburu ebe obibi. N'ọdịnihu, na mmepe na-aga n'ihu na teknụzụ, atụmanya ngwa nke HPMC ga-abawanye, na ngwa ya na mpaghara adhesives ga-abawanye ụba.
Oge post: Feb-17-2025