Hydroxypropyl methylcellulose (HPMC)bụ ihe na-abụghị ionic cellulose ether nke a na-ejikarị eme ihe n'ime ihe owuwu, karịsịa n'ichepụta ihe ndị dabeere na ciment. Ọrụ ya bụ isi na-agụnye imeziwanye njide mmiri, njupụta na ihe owuwu nke ihe na ịkwalite ihe ndị na-arụ ọrụ nke ihe.
1. Mmelite arụmọrụ njide mmiri
HPMC nwere ezigbo njide mmiri. N'ime ihe ndị sitere na ciment, mmiri na-efunahụ akaghi aka nwere ike imetụta mmeghachi omume hydration nke ciment, na-eduga n'oge na-adịghị ike zuru oke, mgbawa, na nsogbu ndị ọzọ dị mma. HPMC nwere ike igbochi ọpụpụ mmiri nke ọma site n'ịmepụta ihe nkiri polymer siri ike n'ime ihe ahụ, si otú a na-agbatị oge mmeghachi omume hydration ciment. Ọrụ njide mmiri a dị mkpa karịsịa na ọnọdụ okpomọkụ dị elu ma ọ bụ akọrọ, ma nwee ike imeziwanye ihe owuwu na nhazi nke ngwa agha, ihe na ihe ndị ọzọ.
2. Mma constructability na workability
HPMC bụ thickener nke ọma. Ịtinye obere ego HPMC na ihe ndị sitere na ciment nwere ike ịbawanye viscosity nke ihe ahụ nke ọma. Ịba ụbara na-enyere aka igbochi slurry site na imebi, ịda mbà ma ọ bụ ọbara ọgbụgba n'oge ngwa, ma na-eme ka ihe dị mfe gbasaa na ọkwa. Tụkwasị na nke ahụ, HPMC na-enye ihe ahụ ike siri ike, na-eme ka adhesion nke ngwa agha dị na ihe ndabere, na-ebelata ihe mkpofu n'oge a na-ewu ụlọ na ọrụ nrụzi na-esote.
3. Ịkwalite nkwụsị mgbape
Ihe ndị dabeere na ciment na-adịkarị mfe ịgbawa n'ihi mmiri na-ekpochapụ mmiri na ụda olu n'oge usoro siri ike. Ihe njide mmiri nke HPMC nwere ike ịgbatị oge plastik nke ihe ahụ ma belata ihe ize ndụ nke nkwụsịtụ. Na mgbakwunye, HPMC na-agbasasị nrụgide dị n'ime nke ọma site n'ịbawanye ike njikọ na mgbanwe nke ihe ahụ, na-ebelata ihe omume nke cracks. Nke a dị oke mkpa maka ngwa agha ndị dị mkpa na ihe eji eme ala na-eweda onwe ya.
4. Meziwanye ogologo oge na nkwụsi ike ifriizi
HPMCnwere ike imeziwanye njupụta nke ihe ndị sitere na ciment ma belata porosity, si otú ahụ na-emeziwanye ihe na-adịghị ahụkebe na ihe mgbochi corrosion. N'ebe oyi na-atụ, nkwụsi ike na-ajụ oyi nke ihe na-emetụta ndụ ọrụ ha. HPMC na-ebelata mmebi nke ihe ndị sitere na simenti n'oge usoro ikuku na-ekpo ọkụ ma na-eme ka ogologo ndụ ha dịkwuo mma site n'ijigide mmiri na ịkwalite ike njikọ.
5. Nweta akụrụngwa akụrụngwa
Ọ bụ ezie na isi ọrụ nke HPMC abụghị iji mee ka ike dịkwuo elu, ọ na-eme ka ihe ndị dị na ciment dịkwuo mma n'ụzọ na-edoghị anya. Site n'ịkwalite njide mmiri na ịrụ ọrụ, HPMC na-eme ka simenti ahụ dị n'ụzọ zuru oke ma na-emepụta usoro ngwaahịa hydration denser, si otú ahụ na-emeziwanye ike mkpakọ ihe na ike mgbanwe. Tụkwasị na nke ahụ, ezigbo ọrụ na ihe jikọrọ ọnụ na-enyere aka belata mmebi ihe owuwu, si otú a na-emeziwanye arụmọrụ nhazi nke ihe.
6. Ihe atụ ngwa
A na-eji HPMC eme ihe na ngwa agha masonry, plastering mortar, ngwa agha na-edozi onwe ya, nrapado tile na ngwaahịa ndị ọzọ na-arụ ọrụ. Dịka ọmụmaatụ, ịgbakwunye HPMC na nrapado tile seramiiki nwere ike imeziwanye ike njikọ na oge mmeghe; ịgbakwụnye HPMC na plasta ngwa agha nwere ike ibelata ọbara ọgbụgba na mbelata, ma melite mmetụta plasta na mgbochi mgbawa.
Hydroxypropyl methylcellulosenwere ike imeziwanye arụmọrụ nke ihe ndị sitere na ciment n'ọtụtụ akụkụ. Njide mmiri ya, nkwụsi ike, mgbape mgbawa na ihe ndị na-adịgide adịgide emeela ka mma ụlọ na ịrụ ọrụ nke ihe ndị sitere na ciment dịkwuo mma. Nke a abụghị naanị na-enyere aka melite ogo ọrụ, kamakwa ọ na-ebelata ọnụ ahịa ihe owuwu na mmezi. N'ọdịnihu, site na mmepe nke teknụzụ ihe owuwu ụlọ, atụmanya ngwa nke HPMC ga-aba ụba.
Oge nzipu: Nov-21-2024