HPMC (hydroxypylthylthylthylcelllose) bụ ihe eji emepụta polymerme nke polymersion nke ọma na akụrụngwa ụlọ, karịsịa na ihe ndị sitere na ciment. Mmeghe nke HPMC nwere ike imeziwanye arụmọrụ nke ihe onwunwe ciment, gụnyere ikegide na-emegide nguzogide, site na iwelata ihe omume nke mgbawa.
Kemịkal na anụ ahụ nke hpmc
HPMC bụ polymer na-agagharị nke na-agagharị site na cellosuse. Ihe owuwu molecular gunyere methyl na hydroxylhyl, na-enye ya sorbulity, ndi na-ejide ya, udu mmiri na ihe ndi n dome ihe ngosi. Ihe isi ya gụnyere:
Nnukwu njide mmiri: HPMC nwere ikike nnabata dị mma ma nwee ike ịmepụta ihe nkiri na-eme ka mmiri n'ime ihe ahụ iji belata mkpochapu mmiri.
Mmetụta Thinking: HPMC nwere ike ịbawanye viscosity nke slurry, si otú a na-eme ka ọrụ ya dịkwuo elu.
Njirimara nke fim: ike nke ime ihe nkiri ya nwere ike imepụta ihe nkiri na-agbanwe agbanwe n'elu ihe a, na-enye nchebe anụ ahụ ndị ọzọ.
Mmepụta nke HPMC na cracking nke ciment
1. Njide mmiri na mbelata nke nkụda mmụọ
Akụrụngwa na-enwe ike vimetric na-emebi emebi n'oge ha na-emegharị anya, n'ụzọ bụ isi n'ihi nkụda mmiri na ihicha ihe na-egbu egbu. A na-ebute ndị na-eme ihe mgbochi na-eme ka mmiri dị nfe na ciment slurry n'oge usoro hardọn, na-ebute oke ụda olu. Ngwongwo-egbochi mmiri nke HPMC na-arụ ọrụ dị mkpa na nke a:
Na-akwụsị mmiri mmiri: Hpmc na-ejigide mmiri na ciment slurry, si otú a na-agbadata ọnụego mmiri. Ọ bụghị naanị ihe mmetụta mmiri a ọ bụghị naanị na-enyere aka ogologo oge mmeghachi ahụ, kamakwa na-ebelata iwechasị mmiri mmiri.
A na-eji obi ụtọ hydration na-emegharị emegharị: Ebe ọ bụ na HPMC na-enye ebe ikuku dịsi ike, na -ebelata nghọtahie hydration ma belata ihe ize ndụ nke mgbawa kpatara.
2. Meziwanye viscosict na ekesa ihe
HPMC nwere mmetụta dị egwu, nke na-arụ ọrụ dị mkpa na imeziwanye ọrụ na ịdị n'otu nke ihe ndị sitere na ya:
Mmụba na viscosity: HPMC na-abawanye viscosity nke slarry, na-emezi ọrụ ọrụ n'oge ngwa, na-enye ohere ịba ụba nke ọma ma jupụta vaịn, na-ebelata vaịn na mpaghara adịghị mma.
Asambodo eji edo: Site na ịba ụba viscosity nke slurry, hpmc na-eme ka nkesa nke ndị na-eme ihe na-eme ihe ọ bụla, na-ebute ihe owuwu na-eme ka nrụgide na-ebelata n'ihi nrụgide siri ike.
3. Njirimara na-emepụta ihe nkiri na nchekwa elu
Ngwongwo na-eme ihe nkiri nke HPMC na-enyere aka iji akwa nchekwa n'elu ihe a, nke nwere mmetụta dị mma na ibelata elu elu:
Nchedo elu: oyi na-agbanwe agbanwe nke Hpmc n'elu ihe ahụ nwere ike ichebe elu ya site na mpụga gburugburu ebe obibi, si otú a na-ebelata ihe ndapụta elu.
Ndozi nke na-agbanwe agbanwe: a na-agbanwe agbanwe nwere obere mgbanwe ma nwee ike ị nweta akụkụ nke nrụgide n'oge obere nrụrụ, si otú ahụ na-eme ka mgbasawanye nke cracks.
4. Kpezie usoro Hydration
HPMC nwere ike hazie usoro hydration nke ciment, nke na-arụ ọrụ dị mkpa na ibelata ike ịta na-eme ka ị ghara ịcheta ihe hydration:
Jiri nwayọ depụta Hydration: HPMC nwere ike belata mmeghachi omume ngwa ngwa, na-ekwe ka mmiri ahụ dị n'ime ciment slurry ka ewepụtara, si otú ahụ na-enye ebe a na-edo edo edo ma kwagide. Mmebi a na-ewepụ nwayọ nwayọ na-ebelata nchekasị nke ihe mmeghachi omume na-enweghị atụ, site na iwelata ihe ize ndụ nke mgbawa.
Ntinye ihe atụ nke HPMC na ihe dị iche iche ciment dị iche iche
A na-ejikarị HPMC mee ihe n'ọtụtụ ihe ndị sitere na ciment, gụnyere mana ọ bụghị naanị na ala na-enweghị onwe, na mpụga mgbidi mgbidi, ngwa ngwa na ihe ndozi. Ihe ndị a bụ ụfọdụ ihe atụ iji ngwa akọwapụtara:
1. Ihe mkpuchi nke onwe
Akụrụngwa dị ala na-achọ ihe dị mma na njikọta nkekọ ma na-ezere cracks elu. HPMC na-eme ka ọ dị elu na elu nke ihe ahụ site na njigide mmiri na-enwewanye mmetụta na mmiri mmiri mgbe ị na-ebelata ihe ndagide elu.
2. Ihe mpụga mgbidi
Agba mpụga chọrọ ezigbo ndọnye na ndagide na-eguzogide. Ngwongwo na-eme ihe nkiri na njigide mmiri nke HPMC na-eme ka ngbanwe nke mkpuchi na ngbanwe nke, si otú a na-eme ka ndị mmadụ na-efe efe na ihu igwe.
3. Ngwa mmezi
Ihe ndozi ihe choro ike di elu ma ngwa ngwa ka ha na-eme ihe nchapu. HPMC na-enye njigide mmiri kachasị mma na hydration na-achịkwa, na-enye ohere iji lekọta ngbanwe n'oge usoro ha na-agbadata ma belata ihe ize ndụ nke ịgbagharị mgbe mmezichara.
Na-akpachapụ anya iji HPMC
Ọ bụ ezie na HPMC nwere mmetụta dị ukwuu na ibelata ihe na-emebi ciment, isi ihe ndị a ka a ka chọrọ iji chọpụta n'oge eji:
Njikwa usoro: Usoro nke Hpmc kwesịrị ịbụ nke ọma na usoro achọrọ. Oke ma ọ bụ nke ukwuu ga-emetụta arụmọrụ ihe. N'ikwu okwu, usoro onunu ogwu di n'etiti 0.1% - 0,5%.
Mixgwakọta Unifornity: Ọ dị mkpa iji jupụta nke ọma na ihe ndị ọzọ iji hụ na ọ na-arụ ọrụ na slurry.
Ọnọdụ owuwu: gburugburu ebe a na-ewu (dị ka okpomọkụ, iru mmiri) nwekwara mmetụta na nsonaazụ HPMC, ọ ga-agbanwe n'ụzọ kwekọrọ dịka ọnọdụ akọwapụtara.
Dị ka ihe mgbakwunye ciment dị irè, hpmc na-arụ ọrụ dị mkpa n'ịbelata ihe na-emebi emebi site na njigide mmiri ciment site na njigide mmiri ya pụrụ iche, ndị na-akpụ akpụ, na-ese ihe na njikwa nchịkwa. Ọ na-egbu oge mmiri, na-eme ka ịdị n'otu ihe onwunwe, na-echebe ntọala ihe onwunwe, ma na-achịkwa usoro hydration, na -ebelata ihe ize ndụ nke mgbawa. Yabụ, na ntinye nke ihe ciment, iji HPMC enweghị ike imeziwanye arụmọrụ, kamakwa na-agbatị ndụ ọrụ ya ma belata ụgwọ mmezi ya.
Oge post: Jun-26-2024