Ụbọchị nbipute:17,Jul,2023

Kacha nkịtị post ewu nsogbu nke esịtidem mgbidi putty ntụ ntụ na-peeling na whitening. Iji ghọta ihe mere peeling nke esịtidem mgbidi putty ntụ ntụ, ọ dị mkpa ka mbụ ịghọta isi akụrụngwa mejupụtara na ọgwụgwọ ụkpụrụ nke esịtidem mgbidi putty ntụ ntụ. Mgbe ahụ, dabere na nkụ, mmịpụta mmiri, okpomọkụ, na nkụchi ihu igwe nke mgbidi n'oge a na-ewu putty, chọpụta isi ihe kpatara peeling nke n'ime mgbidi putty ntụ ntụ ma jiri ụzọ kwekọrọ ekwekọ dozie nsogbu nke peeling putty powder.

一, Basic akụrụngwa mejupụtara nke ime mgbidi putty ntụ ntụ:

Ihe kachasị mkpa nke ntụ ntụ ime mgbidi gụnyere: ihe na-ejikọta inorganic (calcium isi awọ), ndị na-ejuputa (oke calcium ntụ ntụ, talcum ntụ ntụ, wdg), na ihe mgbakwunye polymer (HPMC, mmanya polyvinyl, rubber powder, wdg). N'ime ha, n'ime mgbidi putty ntụ ntụ n'ozuzu adịghị etinye ciment ọcha ma ọ bụ na-agbakwụnye ntakịrị ciment ọcha. Redispersible latex ntụ ntụ nwere obere mmetụta na obere usoro onunu ogwu, ya mere, a naghị eji ya eme ihe n'ime mgbidi putty ntụ ntụ n'ihi okwu ọnụ ma ọ bụ na-ejikarị ya eme ihe.

Ya mere, n'ihi esemokwu na usoro nke ime mgbidi putty ntụ ntụ n'onwe ya:

1. Inorganic bonding ihe, dị ka obere mgbakwunye nke isi awọ calcium na substandard àgwà nke isi awọ;

2. Mgbakwunye nke njikọ njikọ na ihe mgbakwunye polymer nke dị oke ala ma ọ bụ na-emezughị ụkpụrụ dị mma nwere ike ime ka mgbidi putty dị n'ime ya daa.

二, usoro ọgwụgwọ nke ime mgbidi putty ntụ ntụ:

Ngwọta nke ime mgbidi putty ntụ ntụ na-adabere na mmetụta synergistic nke lime calcium ntụ ntụ, HPMC na ihe mgbakwunye polymer ndị ọzọ n'okpuru ọnọdụ wetting iji sie ike, mepụta ihe nkiri, ma mee ka usoro ọgwụgwọ ahụ sie ike.

Ụkpụrụ siri ike nke ntụ ntụ calcium isi awọ:

Nhicha na ike siri ike: N'oge usoro nchacha, nnukwu mmiri na-esi na ntụ ntụ calcium na-acha ntụ ntụ, na-eme ka nnukwu netwọk nke pores yiri ya na slurry. Mmiri efu nke fọdụrụ na pores, n'ihi esemokwu elu nke mmiri, na-emepụta nrụgide capillary, na-eme ka ihe ndị na-acha ntụ ntụ calcium na-acha ntụ ntụ na-eme ka ọ dịkwuo mma, si otú a na-enweta ike. Mgbe slurry na-esiwanye nkụ, mmetụta a na-ewusikwa ike. Crystallization hardening: Nke ukwuu chụsasịrị colloidal ahụ na slurry na-ekewa site mgbasa oyi akwa n'etiti ahụ. Ka mmiri mmiri na-eji nwayọọ nwayọọ na-ebelata, oyi akwa nke mgbasa ozi na-eji nwayọọ nwayọọ na-adị ntakịrị, ma si otú ahụ na-eme ka akụkụ colloidal na-ejikọta ibe ha n'okpuru ọrụ nke ndị agha molekụla, na-eme ka netwọk nke oghere nke condensed, si otú ahụ nweta ike. Carbon hardening: slurry na-amịkọrọ CO2 gas site na ikuku, na-akpụ calcium carbonate nke na-adịghị ike ime na mmiri. A na-akpọ usoro a carbonation of slurry. Mmeghachi omume ndị a bụ ndị a:

Ca(OH)2+CO2+H2O→CaCO3+(n+1)H2O

Kristal nke calcium carbonate emepụtara na-ebikọ ọnụ na ibe ya ma ọ bụ n'ụdị calcium hydroxide, na-eme netwọk kristal jikọtara ọnụ, si otú ahụ na-eme ka ike nke slurry dịkwuo mma. Na mgbakwunye, n'ihi mmụba siri ike nke calcium carbonate na-abawanye ntakịrị ma e jiri ya tụnyere calcium hydroxide, slurry calcium ntụ ntụ isi awọ na-eme ka ọ sie ike karị. 3, Mgbe putty ntụ ntụ na-etinyere na mgbidi, mmiri na putty bụ tumadi efu site na ụzọ atọ:

The mmiri evaporation n'elu nke putty mgbe isi awọ calcium na ọcha ciment meghachi omume na absorbent putty ntụ ntụ nke isi mgbidi elu. 3. Mmetụta nke ihe owuwu ihe na-emepụta ntụ ntụ nke ntụ ntụ putty:

Ihe kpatara nkwụsị ntụ ntụ kpatara ihe owuwu na-agụnye: ọnọdụ nlekọta adịghị mma na-eme ka putty kpoo ngwa ngwa ma ghara inwe ike zuru oke; Mgbidi dị n'okpuru ala dị oke akọrọ, na-eme ka putty kwụsị ngwa ngwa; Oke ọkpụrụkpụ nke putty n'otu ogbe.