Hydroxypropyl Methylcellulose (HPMC) bụ ether cellulose na-abụghị ionic nke a na-ejikarị eme ihe n'ihe owuwu ụlọ, karịsịa na ngbanwe nke konkịta na ngwa agha. Isi ihe ya bụ ngwaahịa a na-enweta site na mgbanwe kemịkalụ nke cellulose, nke nwere ike igbari na mmiri iji mepụta ngwọta colloidal. Dị ka ihe mgbakwunye, ihe pụrụ iche nke anụ ahụ na kemịkal nke HPMC na-enye mmetụta dị mma dị iche iche.
1. Melite ịrụ ọrụ
1.1. Mụbaa plasticity
HPMC na-abawanye plasticity na fluidity nke ihe, na-eme ka ọ dị mfe ịkpụzi n'oge ewu. Njide mmiri nke HPMC na-enye ohere ka ngwakọta kọmpụta nwee ogologo oge na-arụ ọrụ, si otú a na-ebelata ọsọ ihicha. Nke a dị mkpa karịsịa maka nnukwu ọrụ ma ọ bụ ọrụ ndị na-achọ ịwụsa ogologo oge, n'ihi na ọ na-egbochi ngwakọta ahụ site na ihicha ngwa ngwa ma na-ebelata ihe isi ike nke ihe owuwu.
1.2. Melite mmanu mmanu
HPMC nwere mmanu mmanu, nke nwere ike ibelata esemokwu n'etiti ihe na ihe eji eme ihe ma obu ihe ndi ozo, si otú a belata nguzogide n'oge ihe owuwu. Nke a na-enyere aka ibelata ịka nká na igwe ihe owuwu ma na-emeziwanye arụmọrụ ụlọ.
2. Meziwanye njigide mmiri
2.1. Egbu oge evaporation mmiri
Ọdịdị molekụla nke HPMC nwere ike ịmịnye nnukwu mmiri, si otú a na-akpụ netwọk mmiri na-ejide mmiri n'ime ihe. Ikike a na-ejigide mmiri na-egbu oge na-egbu oge nke mmiri na-ekpochapụ mmiri, na-eme ka ihe ahụ na-ejide mmiri zuru oke n'oge usoro siri ike, ma na-akwalite mmeghachi omume hydration nke ciment.
2.2. Gbochie mgbawa plastic shrinkage
Site n'ịkwalite njide mmiri nke kọnkịrị, HPMC nwere ike igbochi mgbawa rọba na-agbawa na kọnkịrị n'oge mbido ike. Nke a dị mkpa maka imeziwanye ike na ịdịte aka nke kọnkịrị, ọkachasị na gburugburu ebe a na-ewu ụlọ na-ekpo ọkụ na nkụ.
3. Mụbaa adhesion
3.1. Meziwanye adhesion n'etiti ihe na ihe nkwado
HPMC na-abawanye nrapado n'etiti ihe nchara na nchara ma ọ bụ ihe nkwado ndị ọzọ. Ihe mgbakwunye a na-eme ka ọ dịkwuo mma na-eme ka njikọ dị mma n'etiti ihe na-eme ka ihe na-eme ka ọ dịkwuo mma, nke na-enyere aka melite ike na nkwụsi ike nke nhazi ahụ.
3.2. Meziwanye mkpuchi mkpuchi
Na spraying ma ọ bụ plasta ngwa, HPMC nwere ike imeziwanye adhesion nke ihe n'elu, si otú hụ na dị iche iche mkpuchi ma ọ bụ finishing ihe nwere ike mma rube isi n'elu ihe. Nke a dị ezigbo mkpa maka ọgwụgwọ mpụga nke ụlọ na ịdịte aka nke oyi akwa mkpuchi.
4. Meziwanye ihe mgbochi iyi na nguzogide corrosion
4.1. Mee ka eyi nguzogide
The ojiji nke HPMC nwere ike welie elu eyi iguzogide ihe na ibelata ohere nke elu eyi. Nke a dị oke mkpa maka akụrụngwa dịka ala ma ọ bụ okporo ụzọ ndị kwesịrị iguzogide igwe eji arụ ọrụ ugboro ugboro.
4.2. Melite nguzogide corrosion
Site melite compactness na mmiri njigide nke ihe, HPMC nwekwara ike n'ụzọ dị irè gbochie penetration nke emerụ bekee, si otú melite corrosion iguzogide nke ihe. Karịsịa na gburugburu ebe nwere ion chloride ma ọ bụ ihe ndị ọzọ na-emebi emebi, HPMC nwere ike ịgbatị ndụ ihe nke ọma.
5. Meziwanye ihe owuwu ụlọ
5.1. Mụbaa mgbapụta
HPMC na-eme ka mgbapụta nke ihe dị mma, na-eme ka ọ dị nro n'oge njem. Mgbanwe a na-enye ohere ka a na-agbapụta ihe n'ebe dị anya na-enweghị ibelata ike, nke bara uru karịsịa maka iwu ụlọ elu ma ọ bụ nnukwu ụlọ.
5.2. Belata nkewa na ọbara ọgbụgba
HPMC nwere ike belata oke nkewa na ọbara ọgbụgba na kọmpụta, na-ahụ na ịdị n'otu n'oge njem na ịwụsa mmiri. Nke a na-enyere aka melite àgwà na anọgidesi ike nke ikpeazụ Ọdịdị na-egbochi na-ezighị ezi bughi ntụpọ mgbe ihe siri ike.
6. Meziwanye ike
6.1. Welie ike n'oge
Ojiji nke HPMC nwere ike mee ka mmeghachi omume hydration nke ciment dịkwuo elu, si otú a na-eme ka ike mbụ nke ihe dị mma. Nke a dị ezigbo mkpa maka ọrụ injinia dị mkpa ka e wuo ma tinye ya ngwa ngwa.
6.2. Melite ike ogologo oge
Ebe ọ bụ na HPMC na-eme ka nkwekọrịta na mgbape na-eguzogide ihe, ọ pụkwara ịnọgide na-enwe ike nke ihe n'ime ogologo oge, na-eme ka ọ dị ogologo na nkwụsi ike nke ụlọ ahụ.
7. Uru gburugburu ebe obibi
7.1. Belata ojiji ciment
Site na imeziwanye arụmọrụ nke ihe, HPMC na-enye ohere iji ciment belata n'ọnọdụ ụfọdụ. Ọ bụghị naanị na nke a na-enyere aka ibelata ọnụ ahịa ihe owuwu, kamakwa ọ na-ebelata ikuku carbon dioxide nke a na-emepụta n'oge mmepụta ciment, bụ nke bara uru maka nchebe gburugburu ebe obibi.
7.2. Melite ojiji ihe onwunwe
HPMC na-eme ka ngwakọta kọnkịtị bụrụ nke ziri ezi, na-ebelata ihe mkpofu ihe, ma na-emekwuwanye nkwado nke ihe owuwu.
Hydroxypropyl methylcellulose (HPMC) nwere uru dị ukwuu dị ka ihe mgbakwunye ihe. Uru ndị a na-agụnye imeziwanye arụmọrụ ihe, njide mmiri, adhesion, eyi nguzogide na nguzogide corrosion, imeziwanye ihe owuwu ihe, na inyere aka melite ike na gburugburu ebe obibi. Site n'ịgbakwunye HPMC na ihe, ọ bụghị naanị na a ga-eme ka arụmọrụ na ịdị mma dịkwuo mma, ma ndụ ọrụ nke ihe owuwu ahụ nwekwara ike ịgbatị, na mmezi na ngbanwe ụgwọ nwere ike ibelata.
Oge nzipu: Jun-27-2024