Ngwa nke hydroxypylthylthylcelllose (hpmc) na ciment na mmetụta ya

Hydroxypylththththththylcelllose (hpmc) Bụ polymer eke sitere na-eji ebe a na-ewu ihe owuwu, ọgwụ, nri na ubi ndị ọzọ. Na ụlọ ọrụ ciment, a na-ejikarị ụlọ ọrụ ciment, a na-ejikarị ya dị ka ihe mgbakwunye na-agbakwunye nke ọma na-eme ka arụmọrụ nke ciment, ma mee ka ọrụ dị nfe, ọrụ ike na ngwakọta ikpeazụ.

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HPMC bụ ihe na-eme ihe na-eme ka enwetara site na ịmịpụta cellulose site na ethlation, hydroxyylation na methylation. Ihe owuwu ya na-agụnye ọtụtụ hydrophilic na otu hydrophobic otu, nke na-enyere ya aka ịme ọtụtụ ọrụ na sistemụ ciment. HPMC na-egwu ọrụ ndị a na ciment:

Mmetụta Dị Mmiri

HPMC nwere mmetụta siri ike ma nwee ike imeziwanye viccosity ciment, na-eme ka ciment ngwakọta na ịzere ndagide ma ọ bụ na-adịghị mma. Nke a bụ mkpa maka imeziwanye mmiri na nkwụsi ike nke ciment ma ọ bụ ihe ndị ọzọ na-achọsi ike, na-ejide na ọ na-emejupụta ka mma ma nwee njupụta dị elu.

Meziwanye njide mmiri

HPMC nwere ike ijikwa oke mmiri na ciment ma na-egbu oge ọnọdụ mbụ nke ciment. Karịsịa na elu okpomọkụ ma ọ bụ gburugburu akọrọ, ọ nwere ike idobe ọnụ ala nke ciment ma gbochie ihicha nkụ, si otú a na-ewu ewu. Njide mmiri bụ nnukwu ihe dị mkpa na usoro owuwu nke ciment ihe ma gbochie nguzobe nke cracks.

Meziwanye adresion na mmiri

A na-agbakwunye ihe mgbakwunye kemịkal ndị ọzọ na ciment, dị ka polymen, Admixtores, wdg, nke nwere ike imetụta ahịhịa ciment. HPMC nwere ike iwelie ike nke ciment, na-eme ka ndị ọzọ rọba na mmiri, si otú a na-ewu ewu. Na mgbakwunye, HPMC nwekwara ike ịkwalite nrapado n'etiti ciment na ihe ndị ọzọ na-ewu ụlọ (dịka ájá na gravel) ma belata ihe mere.

Meziwanye nguzogide

Ebe ọ bụ na nchegbu ahụ nwere ike ime ka njigide mmiri na-egbu oge ma gbuo oge hydration usoro, ọ nwekwara ike ime ka ihe mgbaze na-eguzogide ciment. Karịsịa na mmalite oge mgbe ike ciment esighị ọkwa zuru ezu, ihe ciment na-adịkarị mfe cracks. Site na iji HPMC, enwere ike wedata ọnụego ciment ma gbadaa ngwa ngwa nke oke mmiri na-belata.

2. Mmetụta HPMC na ngwa ciment

Melite ọrụ ciment

Mmetụta ndị dị omimi nke Hpmc na-eme ka cente madokwu ikike. Maka ụdị ciment dị iche iche (dịka Portland Ciment, ciment na-asacha ngwa ngwa, wdg), HPMC nwere ike iji ngwa ngwa nke slurry ma na-awụsị ya n'oge owuwu. Na mgbakwunye, HPMC nwere ike ime ka Cence tapawasie ike n'oge iwu ụlọ, belata ikuku ikuku, ma meziwanye ogo owuwu.

Melite ike ciment

Mgbakwunye nke HPMC nwere ike ime ka ike nke ciment ruo oge ụfọdụ. Ọ na-agbanwe nkesa mmiri na ciment, na-akwalite mmeghachi obi ụtọ nke ciment, ma si otú ahụ na-eme ka ike gwụsịa ike ciment. N'ime ihe ndị dị mma, na-agbakwunye ego HPMC kwesịrị ịkwalite mmeghachi omume hydration nke ciment ma melite ciment, ike na ike nke ciment.

Nnọọ Ọdịnaya

Mgbakwunye nke hpmc na-enyere aka ime ka ogologo oge nke ciment. Karịsịa mgbe a na-ekpughere ciment gburugburu corrosive (dị ka acid, Alkali, Saly, wdg), wdg na-eguzogide ike na-eguzogide ọgwụ ciment. Na mgbakwunye, HPMC nwere ike belata ihe omimi nke ngwakọta ciment ma mee ka njupụta ciment, si otú a belata ọnụego ya na gburugburu ọgba aghara.

Meziwanye mgbanwe gburugburu ebe obibi

N'okpuru ọnọdụ ihu igwe dị egwu, arụmọrụ nke mgbanwe ciment na-emetụta mgbanwe na ọnọdụ okpomọkụ na iru mmiri. HPMC nwere ike igbu oge ntọhapụ nke ciment slurry ma belata nsogbu ndị na-akpata ngwa ngwa ma ọ bụ ịta mmiri. Ya mere, ọ kachasị adabara anya maka gburugburu ebe a na-ewu mgbidi, okpomoku dị ala na nnukwu iru mmiri na-agbanwe.

3. Ezigbo ojiji nke HPMC

Ọ bụ ezie na ngwa HPMC na ciment nwere ike ime ka arụmọrụ ya dịkwuo mma, ojiji ya kwesịrị ịkpachara anya, karịchaa na ego ahụ gbakwụnyere. Mgbakwunye buru ibu nke hpmc nwere ike ibute viscosity cime pace tapawa dị oke elu, na-ebute na agwakọta ma ọ bụ ihe isi ike. N'ozuzu, a ga-achịkwa ego HPMC agbakwunyere n'etiti 0.1% na 0.1 nke ciment Mass, na uru mkpụrụ osisi akọwapụtara dị ka ụdị ciment ciment akọwapụtara, ngwa na gburugburu ebe obibi.

Uzo di iche iche, nkọwa na ogo mgbanwe nkeHpmc nwekwara ike inwe mmetụta dị iche iche na akụ ciment. Ya mere, mgbe ị na-ahọrọ HPMC, ihe ndị dị ka ogo molecular dị ka ogo moleculationl na methylifly ogo iji nweta mgbanwe kachasị mma. Mmetụta.

Dị ka ciment ciment dị mkpa, na-eme ka ọrụ dị mkpa, ike, ịdị ike, ịdị mfe na gburugburu ime obodo nke ciment site na imepụta mmiri, na-eme ka njigide mmiri na-eme ka mmiri sie ike. Ngwa ya dị iche iche na ụlọ ọrụ ciment bụghị naanị na-eme ka arụmọrụ dị ike nke ciment, kamakwa ọ na-enye nkwado siri ike maka nyocha na ngwaahịa na akụrụngwa ndị metụtara gburugburu. Dịka ọrụ owuwu na-aga n'ihu na-abawanye ihe ha chọrọ maka ịrụ ọrụ ihe onwunwe, HPMC nwere atụmanya ngwa ngwa na ụlọ ọrụ ciment ma ga-aga n'ihu na-agbanwe mgbanwe ciment dị mkpa.