Lekwasị anya na cellulose ethers

Ngwa nke VAE RDP ntụ ntụ n'ime ngwa agha ihe owuwu dị iche iche

1. Okwu mmalite:

Mmepe na ihe ndị e ji ewu ụlọ emewo ka ịmepụta ihe mgbakwunye dị ka polymer powders redispersible (RDP), bụ nke na-ekere òkè dị mkpa n'ịkwalite arụmọrụ nke mgbidi ụlọ. N'ime ụdị RDP dị iche iche, vinyl acetate-ethylene (VAE) RDP pụtara maka ịdị mma ya na ịdị irè ya n'ụdị ngwa agha dị iche iche.

2. Njirimara nke VAE RDP ntụ ntụ:

VAE RDP ntụ ntụ bụ copolymerized site na vinyl acetate na ethylene. Nke a na-emepụta ntụ ntụ dị mma, nke na-enweghị ihe ọ bụla nke nwere ezigbo dispersibility na mmiri. Ihe ndị dị mkpa nke VAE RDP gụnyere ike njikọ dị elu, ezigbo mgbanwe na ndakọrịta na ihe dị iche iche nke cimenti. Ngwongwo ndị a na-eme VAE RDP ka ọ bụrụ ihe mgbakwunye dị mma maka imeziwanye arụmọrụ nke ngwa agha ihe owuwu.

3. Ngwa nke VAE RDP dị iche iche na-ewu ngwa agha:

3.1. Ihe nrapado tile:

VAE RDP na-akwalite ike nkekọ na mgbanwe nke adhesives tile, na-ebute ike nkekọ na mbelata mgbawa. Ngwongwo ya na-ejigide mmiri na-enyekwa aka ịgbatị oge mmeghe, na-eme ka taịl nile dịkwuo mfe ịwụnye.

3.2. Sistemụ mkpuchi mgbidi na mpụga (EIFS):

Na EIFS, VAE RDP na-eme ka sistemu ahụ na-eguzogide mgbawa na ihu igwe. Ọ na-eme ka nrapanye nke primer na mkpụrụ osisi ahụ ma na-enye mgbanwe iji nabata mgbasawanye okpomọkụ na nkwekọrịta.

3.3. Nkwado nke onwe:

VAE RDP na-eme ka ihe na-asọpụta na nhazi onwe ya nke liner. Ọ na-eme ka ire ụtọ dị n'elu dịkwuo mma ma na-ebelata nkwụsịtụ, na-enye ntọala ndị ọzọ edo na nke na-adịgide adịgide maka mkpuchi ala.

3.4. Ngwakọta mmachi:

Na nrụzi ngwa agha, VAE RDP na-eme ka ike nkekọ na njikọta, na-eme ka ịdịte aka na ịrụ ọrụ ogologo oge nke nrụzi. Ọ na-enye aka melite arụmọrụ ma belata permeability, si otú ahụ na-eme ka nchebe mmiri dịkwuo elu.

4. Mmetụta nke VAE RDP na arụ ọrụ ngwa agha:

4.1. Ike adhesion:

VAE RDP na-eme ka ike njikọ dị n'etiti ngwa agha na mkpụrụ, na-ebute mgbakọ siri ike, na-adịgide adịgide. Ọ nwere ike ịmepụta ihe nkiri na-agbanwe agbanwe na interface iji welie adhesion n'okpuru ọnọdụ dị iche iche.

4.2. Ndokwa mmiri:

Ngwongwo na-ejigide mmiri nke VAE RDP na-agbatị usoro hydration ahụ, na-eme ka ọgwụgwọ dị mma ma melite akụrụngwa nke ngwa agha. Nke a na-eme ka arụmọrụ kachasị mma na ogologo oge dị ogologo, karịsịa na gburugburu ebe siri ike.

4.3. Njirimara rheological:

VAE RDP nwere ike ịgbanwe omume rheological nke ngwa agha, na-eme ka mmiri na-arụ ọrụ dịkwuo mma. Ọ na-ebelata ikewapụ na ọbara ọgbụgba mgbe ọ na-eme ka adhesion dịkwuo elu, na-eme ka ngwa ngwa dị mfe na nkwadebe elu dị mma.

VAE RDP ntụ ntụ na-egosi nnukwu ikike iji melite arụmọrụ nke ngwa agha dị iche iche. Ngwongwo ya pụrụ iche na-enyere aka melite ike nkekọ, njide mmiri na omume rheological, si otú ahụ na-ebuli usoro ngwa agha na ịkwalite ịdịte aka na ịrụ ọrụ. Site n'ịghọta ngwa nke VAE RDP n'ụdị ngwa agha dị iche iche, ndị na-arụ ọrụ nwere ike itinye uru ya iji nweta nsonaazụ ụlọ dị elu.


Oge nzipu: Feb-26-2024
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