Hydroxypropyl methylcelluloseHPMCbụ ihe na-abụghị ionic cellulose ether nke sitere na polymer ihe onwunwe cellulose sitere na usoro nhazi kemịkal.Ha bụ ntụ ntụ ọcha na-esighị ike, nke na-adịghị atọ ụtọ na nke na-adịghị egbu egbu nke na-aza na mmiri oyi ka ọ bụrụ ngwọta colloidal doro anya ma ọ bụ dị ntakịrị.Ọ nwere ihe onwunwe nke ndim, njide, na-achụsasị, emulsifying, film-akpụ, suspending, adsorbing, gelling, elu-arụ ọrụ, na-ejigide mmiri na-echebe colloid.Enwere ike iji Hydroxypropyl methylcellulose, methylcellulose na ihe owuwu ụlọ, ụlọ ọrụ mkpuchi, resin sịntetik, ụlọ ọrụ ceramics, ọgwụ, nri, textile, ọrụ ugbo, kemịkalụ kwa ụbọchị na ụlọ ọrụ ndị ọzọ.
Mmetụta njide mmiri na ụkpụrụ nke hydroxypropyl methylcellulose HPMC
Cellulose ether HPMC na-arụkarị ọrụ nke njide mmiri na ịgbanye na ngwa ngwa ciment na slurry dabeere na gypsum, nke nwere ike imeziwanye njikọ na sag nguzogide nke slurry.
Ihe ndị dị ka okpomọkụ ikuku, okpomọkụ na ikuku ikuku ga-emetụta ọnụ ọgụgụ mmiri na-agbanwe agbanwe na ciment mortar na ngwaahịa gypsum.Ya mere, n'oge dị iche iche, e nwere ụfọdụ ọdịiche na mmetụta njide mmiri nke ngwaahịa na otu ego nke HPMC gbakwunyere.N'ime ihe owuwu a kapịrị ọnụ, enwere ike gbanwee mmetụta njide mmiri nke slurry site na ịba ụba ma ọ bụ ibelata ego nke HPMC agbakwunyere.Njide mmiri nke methyl cellulose ether na okpomọkụ dị elu bụ ihe dị mkpa na-egosi ọdịiche dị mma nke methyl cellulose ether.Ngwaahịa usoro HPMC mara mma nwere ike dozie nsogbu nke njide mmiri n'okpuru oke okpomọkụ.N'oge okpomọkụ dị elu, karịsịa n'ebe ndị na-ekpo ọkụ ma na-ekpo ọkụ na ebe a na-emepụta ihe na-egbuke egbuke n'akụkụ anwụ na-acha, a chọrọ HPMC dị elu iji meziwanye njide mmiri nke slurry.High-edu HPMC, na nnọọ ezigbo uniformity, ya methoxy na hydroxypropoxy iche iche na-evenly kesara tinyere cellulose molekul yinye, nke nwere ike melite ike nke oxygen atọm na hydroxyl na ether agbụ na-akpakọrịta na mmiri na-etolite hydrogen agbụ , nke mere na mmiri n'efu na-aghọ mmiri a na-ekekọta, ka o wee nwee ike ịchịkwa evaporation nke mmiri na-akpata site na ihu igwe dị elu ma nweta njigide mmiri dị elu.
Elu-edu cellulose HPMC nwere ike uniformly na n'ụzọ dị irè gbasasịa na ciment ngwa agha na gypsum dabeere na ngwaahịa, na encapsulates niile siri ike ahụ, na-etolite a wetting film, na mmiri na isi na-eji nwayọọ nwayọọ tọhapụrụ ogologo oge.Mmeghachi omume hydration nke ihe coagulating na-eme, si otú a na-eme ka ike njikọ na ike mkpakọ nke ihe.Ya mere, na elu okpomọkụ na-ewu ụlọ okpomọkụ, iji nweta mmetụta nke njide mmiri, ọ dị mkpa ịgbakwunye ngwaahịa HPMC dị elu dị ka usoro ahụ si dị, ma ọ bụghị ya, a ga-enwe hydration na-ezughị ezu, mbelata ike, mgbawa, oghere na ịdaba. kpatara oke ngwa ngwa ihicha.Ọ na-emekwa ka ihe isi ike nke ndị ọrụ na-arụ ọrụ na-esiwanye ike.Ka okpomọkụ na-ebelata, a pụrụ iji nwayọọ nwayọọ belata ihe mgbakwunye nke HPMC, ma nwee ike nweta otu mmetụta njide mmiri.
Ihe ndị a na-emetụtakarị njide mmiri nke hydroxypropyl methylcellulose HPMC ngwaahịa n'onwe ya:
1. Cellulose ether HPMC homogeneity
HPMC a na-emeghachi omume n'otu n'otu nwere nkesa otu nke methoxy na otu hydroxypropoxy yana njigide mmiri dị elu.
2. Cellulose ether HPMC thermal gel okpomọkụ
Nke dị elu nke okpomọkụ gel thermal, nke dị elu nke njide mmiri;ma ọ bụghị ya, na-ebelata ọnụ ọgụgụ njide mmiri.
3. Cellulose ether HPMC viscosity
Mgbe viscosity nke HPMC na-abawanye, njigide mmiri na-abawanye;mgbe viscosity ruru ọkwa ụfọdụ, mmụba nke njide mmiri na-eme ka ọ dị nro.
4. Cellulose ether HPMC mgbakwunye ego
Ọnụ ọgụgụ dị ukwuu nke cellulose ether HPMC agbakwunyere, ọnụ ọgụgụ dị elu nke njide mmiri na-eme ka mmetụta njide mmiri dịkwuo mma.Na nso nke 0.25-0.6%, njigide mmiri na-abawanye ngwa ngwa na mmụba nke mgbakwunye ego;mgbe ego mgbakwunye na-abawanye, mmụba na-arịwanye elu nke njide mmiri na-eji nwayọọ nwayọọ.
Oge nzipu: Ọktoba 20-2022