HPMC (Hydroxypropyl Methylcellulose) bụ ihe na-eme ka mmiri na-agbaze mmiri na-eme ihe n'ọtụtụ ebe na-ewu ụlọ. A na-eme ya nke ọma site na cellulose sitere n'okike site na mgbanwe kemịkalụ. N'ihi ezigbo anụ ahụ na kemịkal ya, a na-eji HPMC eme ihe n'ihe eji arụ ụlọ. Ọ bụghị naanị na ọ na-eme ka arụ ọrụ ihe owuwu ụlọ dị mma, kamakwa ọ na-eme ka ihe onwunwe ha dịkwuo mma.
1. Mmetụta HPMC na ngwa ngwa ciment
Ngwa ngwa ciment bụ ihe a na-ahụkarị na-ewu ma a na-ejikarị arụ mgbidi, ala, wdg. Ngwa nke HPMC na ngwa ngwa ciment nwere ike ime ka ọganihu dị ịrịba ama, karịsịa na akụkụ ndị a:
(1) Melite ikike ịrụ ọrụ
HPMC nwere ihe ndị na-eme ka ọ dị mma ma nwee ike ịbawanye ngwa ngwa ciment na-adịgide adịgide, si otú a na-eme ka ọrụ ya dịkwuo mma. Nke a pụtara na n'oge usoro ihe owuwu ahụ, ngwa agha na-eji HPMC dị mfe ịrụ ọrụ mgbe ọ na-akpali ma na-etinye ya, na-ebelata ụgwọ ọrụ, ma nwee ike ibelata ọbara ọgbụgba nke ihe ahụ ma mee ka nkwụsi ike nke ihe ahụ dịkwuo elu.
(2) Gbatịkwuo oge mmeghe
Oge mmeghe na-ezo aka n'oge ngwa simenti nwere ike ịnọgide na-arụ ọrụ nke ọma n'oge usoro ihe owuwu ahụ. N'ebe dị ala ma ọ bụ dị elu nke okpomọkụ, oge oghere nke ngwa ngwa ciment nwere ike ịdị mkpụmkpụ. Iji HPMC nwere ike ịgbatị oge a nke ọma, zere ịta ngwa ngwa ngwa ngwa, ma nyere ndị ọrụ ụlọ aka inwekwu oge iji mee mgbanwe n'oge usoro ihe owuwu ahụ.
(3) Meziwanye mgbape mgbape
HPMC nwere ike ime ka ngwa ngwa ciment dịkwuo mma, na-eme ka ọ ghara ịdị mfe na mgbawa n'okpuru ihicha shrinkage na mgbanwe okpomọkụ. Ịbawanye mgbape mgbape nke ngwa agha nwere ike imeziwanye ịdịte aka nke ihe owuwu ụlọ, karịsịa na akụkụ ndị dị ka mgbidi dị n'èzí na ala nke na-emetụta ngwa ngwa site na gburugburu ebe obibi.
(4) Meziwanye nguzogide mmiri
HPMC nwekwara ike welie ọrụ mgbochi mmiri nke ngwa ngwa ciment. Mgbe ejiri ya na gburugburu iru mmiri, ọ nwere ike belata ntinye mmiri nke ọma ma gbasaa ndụ ọrụ nke ụlọ ahụ.
2. Mmetụta nke HPMC na ngwa agha akọrọ
Ngwa ngwa akọrọ bụ ihe eji ewu ụlọ a na-agwakọta nke ọma nke naanị ka a ga-agwakọta ya na mmiri. Ngwa nke HPMC na ngwa ngwa akọrọ nwekwara ike iweta mmetụta dị ịrịba ama:
(1) Melite liquidity na ịrụ ọrụ
Ngwa ngwa akọrọ kwesịrị inwe ezigbo mmiri na ịrụ ọrụ iji mee ka ọ dị nro n'oge itinye na ịtọgbọ. Dị ka a thickener, HPMC nwere ike n'ụzọ dị irè melite fluidity nke akọrọ ngwa agha, na-eme ka ọ dịkwuo mfe ịrụ ọrụ n'oge nkwadebe na-ewu usoro mgbe agbakwunyere mmiri. Iji HPMC dị mkpa karịsịa mgbe ọdịnaya ciment dị ala.
(2) meziwanye nrapado
Njikọ njikọ nke ngwa agha akọrọ na-emetụta kpọmkwem àgwà ihe owuwu na nkwụsi ike nke ụlọ ahụ. HPMC nwere ike imeziwanye arụmọrụ nke ngwa ngwa nke ọma, hụ na nrapanye ya siri ike na ihe ụlọ dị iche iche, ma gbochie oghere na ịdapụ.
(3) Kwalite njide mmiri
Njide mmiri bụ isi ihe na-emetụta ogo ngwa ngwa akọrọ. HPMC na-achịkwa volatilization nke mmiri ma na-egbu oge nke evaporation nke mmiri, nke mere na ngwa agha nwere ike ịnọgide na-enwe kwesịrị ekwesị mmiri mmiri n'oge a na-ewu usoro ma na-ezere imetụta ihe owuwu n'ihi oke ihicha.
3. Mmetụta nke HPMC na mkpuchi
mkpuchi mkpuchi bụ ihe dị mkpa na ihe ịchọ mma ụlọ, na àgwà ya na arụmọrụ ihe owuwu ya nwere mmetụta dị mkpa na mmetụta ịchọ mma ikpeazụ. Dị ka a nkịtị thickener na stabilizer, HPMC na-ọtụtụ ebe na coatings, tumadi na ndị a akụkụ:
(1) Meziwanye rheology nke mkpuchi
Njirimara HPMC na-eme ka ọ dịkwuo mma nwere ike imeziwanye nhazi nke agba, na-achịkwa viscosity nke agba, mee ka agba ahụ dịkwuo ọbụna mgbe a na-etinye ya, ma zere ịfefe ma ọ bụ ntapu ngwa ngwa. Nke a dị mkpa karịsịa na agba mgbidi iji hụ na agba na-ekesa nke ọma ma kpuchie ebe niile.
(2) Meziwanye njide mmiri na ihe mwepu
HPMC nwere ike melite njigide mmiri nke mkpuchi ma na-egbu oge na-ekpochapụ mmiri, si otú ahụ na-eme ka nkwụsị nke mkpuchi ahụ dịkwuo mma, na-eme ka mkpuchi ahụ dịkwuo mfe ịrụ ọrụ n'oge usoro ihe owuwu na ihe osise dị mma. Tụkwasị na nke ahụ, njigide mmiri dị mma na-egbochi agba ka ọ ghara ịgbawa n'oge ihicha.
(3) Mee ka ihu igwe na-eguzogide ma na-eyi mkpuchi mkpuchi
HPMC nwekwara ike imeziwanye ihe mgbochi UV na nguzogide ihu igwe nke mkpuchi ahụ, ka o wee nwee ike ịnọgide na-arụ ọrụ ya n'enweghị mgbanwe dị ukwuu mgbe ọ na-ekpuchi ebe dịpụrụ adịpụ ruo ogologo oge, karịsịa mgbe ìhè anyanwụ, mmiri ozuzo na ájá dị. N'otu oge ahụ, HPMC nwekwara ike welie ike eyi mkpuchi mkpuchi ma melite ogologo oge nke ụlọ elu.
4. Mmetụta nke HPMC na ihe gypsum
Gypsum bụ ihe eji arụ ụlọ nke a na-ejikarị eme ihe n'ọtụtụ ebe maka ime mgbidi ime ụlọ, uko ụlọ na ihe mgbochi ala. Ngwa nke HPMC na ihe gypsum na-egosipụta nke ọma n'akụkụ ndị a:
(1) Meziwanye oke ego
HPMC nwere ike imeziwanye mmiri nke gypsum slurry nke ọma, na-ekwe ka gypsum gbasaa karịa n'elu ala, na-ebelata egosipụta na mkpuchi na-enweghị isi.
(2) Mee ka adhesion dịkwuo elu
Nchikota nke plasta dị oke mkpa maka ịdị mma na ịdịte aka nke ihe owuwu ahụ. Dị ka onye na-eme ka ọ dị ike, HPMC nwere ike imeziwanye njikọ dị n'etiti gypsum na ihe ndị bụ isi ma belata nkwụfu nke kpatara nrapanye zuru oke.
(3) gbuo oge condensation
HPMC nwere ike igbu oge ịtọ oge gypsum ma gbochie gypsum ka ọ sie ike ngwa ngwa n'oge a na-ewu ụlọ. Karịsịa mgbe ị na-arụ nnukwu ebe, ọ nwere ike ịzụta oge ọrụ maka ndị na-arụ ọrụ ụlọ ma hụ na mkpuchi otu na ịdị mma ụlọ.
5. Ngwa nke HPMC na ihe owuwu ụlọ ndị ọzọ
Na mgbakwunye na ụrọ ciment, ngwa ngwa akọrọ, mkpuchi na gypsum, itinye HPMC n'ihe eji arụ ụlọ ndị ọzọ enwetawokwa nlebara anya zuru oke. Dịka ọmụmaatụ, n'ọhịa nke ihe mkpuchi mgbidi dị n'èzí, adhesives ngwa agha, tile adhesives, wdg, HPMC bụ ihe mgbakwunye dị mkpa nke nwere ike imeziwanye ihe nkedo, mmiri na mmiri na-ejigide ihe, si otú ahụ na-emeziwanye mmetụta ihe owuwu n'ozuzu ya.
Ngwa nke HPMC n'ime ihe owuwu ụlọ nwere mmetụta dịgasị iche iche ma nwee ike imeziwanye arụmọrụ nke ihe ụlọ, karịsịa n'ihe ndị a na-ewu ụlọ dị ka ciment ngwa ngwa, ngwa ngwa akọrọ, mkpuchi na gypsum. Site n'ịgbanwe ego na ụdị nke HPMC agbakwunyere, arụ ọrụ, adhesion, nkwụsị mgbawa na ịdịte aka nke ihe ụlọ dị iche iche nwere ike ime ka ọ dịkwuo mma, si otú ahụ na-emeziwanye arụmọrụ na ịdị mma nke ihe owuwu ụlọ. Ya mere, HPMC bụ ihe mgbakwunye dị mkpa na ụlọ ọrụ ihe owuwu ma nwee atụmanya ahịa sara mbara yana ikike ngwa.
Oge nzipu: Nov-11-2024