Ngwa nke HPMC na Cent-Dabere na Ciment na plasters

1. Isi nke HPMC
HPMC (hydropopyylthylthylthylthylthylthylthylthylthylthyl-socymer na-agbanye mmiri na-enwetara site na ngbanwe kemịkal nke sellose eke. O nwere ezigbo mmiri na-agagharị, akụrụngwa na-akpụ akpụ, akụrụngwa, njigide, mkpuchi mmiri na usoro, yana ọgwụ, ọgwụ, ọgwụ, ọgwụ, ọgwụ, nri na ọrụ ndị ọzọ. N'ime ụlọ ọrụ owuwu, ọkachasị na plasta ciment na stucco, HPMC, dị ka ihe mgbakwunye, nwere ike imezi arụmọrụ owuwu ahụ, na-aghọ ihe dị mkpa iji melite ogo ụlọ.

2. Ngwa nke HPMC na plasta ciment na stucco
Melite arụmọrụ owuwu
N'oge usoro ihe owuwu nke si na ciment na stucco, HPMC nwere ike ime ka ihe na-eme ka ihe na-abawanye mmiri na-abawanye njọ, na-eme usoro ihe owuwu na-eme ka ọ dị nro na ụdị. Ihe omume a kapịrị ọnụ bụ:

Oge mmeghe: HPMC nwere ike igbu oge ọnọdụ mbụ ciment, si otú a na-abawanye oge mmeghe nke ihe ahụ. Nke a na-enye ndị ọrụ iwu ihe ka ha rụọ ọrụ ogologo oge, ọkachasị mgbe ị na-ewu nnukwu akụkụ, ma na-egbochi ciment na-eme ka ọ na-eme ihe ike ma na-emetụta ihe owuwu ahụ.
Meziwanye adhesion: ciment-dabeere na stucco maka njikọta n'etiti ụlọ dị iche iche. HPMC nwere ike ime ka ndọtị, belata peesion, wee hụ na - a adhesion nke plasta oyi akwa ma ọ bụ akwa stucco.

Meziwanye njide mmiri
Na places na ihe ndabere na mpempe akwụkwọ, ọrụ mmiri na-ejigide nke HPMC dị ezigbo mkpa. Mmiri ahụ na ciment slurry na-apụ apụ ngwa ngwa, karịsịa na gburugburu okpomọkụ dị elu, nke nwere ike iduga na mpaghara ciment na-ezughị oke, si otú a na-emetụta ike na mmiri nke plasta ma ọ bụ ngwa agha. Site na imeziwanye mmiri nke ihe ahụ, HPMC nwere ike belata ọnụego mmiri ma na-abawanye ike nke ciment ma ọ bụ ngwa agha plasta ma na-ejide ike ahụ.

Mee ka ịgbagharị resistance
Ebe ọ bụ na ihe mkpuchi ciment na sticco na-ewepụta nrụgide nke ime n'oge usoro ha na-agafeghị, ha na-abụkarị cracks, karịsịa gburugburu ebe akọrọ. HPMC nwere ike belata ihe omume akọrọ mkpọchi site na imezili rhiology na njigide mmiri ciment slurry. Na mgbakwunye, ndọnye nke HPMC na-eme ka ikike nke na-emekọ ihe dị n'etiti akwa oyi akwa, na-ebelata nguzobe nke ndị agha mpụga kpatara ya, ma na-eme ka mgbatị ahụ na-eguzogide nke plasta oyi.

Meziwanye rheology
A na-eji HPMC mee ihe dị ka onye na-eme ciment na ciment-dabere na ciment na plasta, nke nwere ike bulite ihe ndị na-edozi rhiological nke slurry. Ọ nwere ike ime ka ndị ahụ nwere ike ime ka mma na viscosity kwesịrị ekwesị, na-ezere nsogbu owuwu nke dị oke mkpa. Dịka ọmụmaatụ, HPMC nwere ike ime ka ahụ kwụsịlata nke slurry, nke ahụ nwere ike kesaa nsị na ciment slurry, zere idozi, ma hụ na owuwe ihe owuwu.

Na-eguzogide nguzogide
HPMC nwere ike ime ka mmiri saa mmiri na-eguzogide nke ciment na stucco ma belata mbuze mmiri na gburugburu iru mmiri. Ọ bụrụ na ciment ahụ slurry dị elu na-enweghị mmiri zuru ezu, ọ ga-emetụta ọsọ ọsọ na ike nke ciment. HPMC nwere ike ịkwalite mmiri na-eguzogide mmiri na cimesters iji zere mbupu mmiri site na mpụga, si otú ahụ na-eme ka ịdịgide nke mkpuchi dị elu.

3. Dosage na ntinye ngwa nke HPMC
Usoro nke HPMC na-egosikarị ụdị ciment nke sitere na ciment ma ọ bụ stucco na arụmọrụ ya. N'ikwu okwu, ego nke HPMC kwukwara bụ ihe dị ka 0.1% -0.5% nke ciment Mass, mana ọ dị mkpa idozi ya dịka ọnọdụ ahụ n'ezie. Iji maa atụ, na ụfọdụ ngwa pụrụ iche, enwere ike ịchọ ọkwa dị elu iji mee ka ihe ndọnye nke ihe ahụ, ma ọ bụ rhiology.

Mgbe ị na-eji HPMC, ịkwesịrị ị attentiona ntị na isi ihe ndị a:
Agwakọta agwakọta: HPMC na-enwekarị mgbakwunye na ciment-dabere na ciment na plasters. Mgbe ị na-eji ya, hụ na ọ gwakọtara ya na ihe ndị ọzọ na-eme ka agglomeration.
Ọnọdụ nchekwa nchekwa: HPMC nwere ọtụtụ usoro nke hygroscopity, a ga-echekwa ya na ala akọrọ iji zere iru mmiri na-eduga na ya.
Imekọ ihe ọnụ na mgbakwunye: Mgbe ejiri ya mee ihe eji eme ihe, ọ dị mkpa iji hụ na ndakọrịta nke HPMC na ihe mgbakwunye kemịkal iji zere imetụta arụmọrụ niile.

4. Uru na nsogbu nke HPMC

Uru:
Nchedo gburugburu ebe obibi: dị ka ihe okike polymer, HPMC enweela isi mmalite nke akụrụngwa na enweghị ibu na gburugburu ebe obibi.
Mee ka arụmọrụ owuwu: HPMC nwere ike imezi arụmọrụ owuwe ihe owuwu na stucco, na-eme ka usoro owuwu sie ike karịa na ngwa ngwa.
Oge dị anya: Mee ka njigide mmiri, na-eme ka njigide mmiri na mmiri na-asacha nke ciment na plasta, na-agbatị ndụ ọrụ ụlọ ọrụ.

Nsogbu:
Esemokwu efu: Achịcha HPMC dị elu, ọkachasị mgbe ejiri ya n'ọtụtụ buru ibu, nke nwere ike ịbawanye ihe dị iche iche.
Nsogbu nke nsogbu: HPMC nwere mmetụta dị iche iche na ụdị ihe ndị sitere na ciment dị iche iche, na ikike dị mma nwere ike imetụta arụmọrụ ikpeazụ.

Dịka mgbakwunye ụlọ a na-ewu ewu, HPMC nwere uru ngwa ngwa na plasta ciment na stucco. Site na ndozi mmiri, na-eme ka ndọnye mmiri na-emewanye ihe, ma na-eme ka njigide cerhesion, HPMC nwere ike ime ka ihe dị elu rụọ ọrụ nke ụlọ ọrụ ihe owuwu nke oge na arụmọrụ. Agbanyeghị, ngwa nke HPMC kwesịrị ijikọta ya na mkpa injinịa nri na usoro ọgwụgwọ ya na oke kwesịrị ịbụ nke a ga-ahọpụtara nke ọma iji hụ na mmetụta kachasị mma na ụlọ.