ntụ ntụ latex enwere ike agbasabụ udi uzuzu nrapado mere nke pụrụ iche ude mmiri ịgba ihicha. Ụdị ntụ ntụ a nwere ike ịgbasa ngwa ngwa n'ime mmiri mmiri mgbe ọ na-ejikọta ya na mmiri, ma nwee otu ihe ahụ dị ka ude mmiri mbụ, ya bụ, mmiri nwere ike ịmepụta ihe nkiri mgbe ọ kwụsịrị. Ihe nkiri a nwere mgbanwe dị elu, oke ihu igwe na-eguzogide na nnukwu adhesion na ihe dị iche iche. Tụkwasị na nke ahụ, ntụ ntụ latex na hydrophobicity nwere ike ime ka ngwa agha ahụ nwee ezigbo ihe mgbochi mmiri. Latex na-acha ọcha kewapụrụ nwere ogologo oge nchekwa, na-eguzogide ọgwụ mgbochi, ọ dịkwa mfe ịchekwa. Na-ele anya na ihe ọmụma zuru ezu si n'ebe ọdịda anyanwụ.
1. Gịnị bụ redispersible latex ntụ ntụ
Nkentụ ntụ latex redisperablengwaahịa bụ mmiri soluble redispersible ntụ ntụ, nke kewara n'ime ethylene / vinyl acetate copolymer, vinyl acetate / ethylene tert carbonate copolymer, acrylic acid copolymer, wdg The ntụ ntụ nrapado mere mgbe ịgba ihicha na-eji polyvinyl mmanya dị ka nchebe colloid. Ụdị ntụ ntụ a nwere ike ịgbasa ngwa ngwa n'ime ude mmiri mgbe ọ kpọtụrụ mmiri. N'ihi na uzuzu latex redispersible nwere ikike nrapado dị elu na ihe pụrụ iche, dị ka mmiri na-eguzogide mmiri, ịrụ ọrụ na mkpuchi okpomọkụ, ngwa ngwa ha dị oke oke.
2. Uru nke redispersible latex ntụ ntụ
1. Ọ dịghị mkpa ịchekwa na ịkwaga na mmiri, na-ebelata ụgwọ njem;
2. Ogologo oge nchekwa, mgbochi kefriza, dị mfe idobe;
3. Nkwakọ ngwaahịa ahụ dị ntakịrị, dị arọ, dị mfe iji;
4. Enwere ike ịgwakọta ya na ihe nkedo dabeere na mmiri iji mepụta premix resin synthetic gbanwetụrụ. Mgbe a na-eji ya eme ihe, ọ bụ naanị mmiri ka a ga-agbakwunye, nke ọ bụghị naanị na-ezere njehie mgbe ị na-agwakọta na saịtị, kamakwa na-eme ka nchekwa nke njikwa ngwaahịa dị mma.
3. Ngwa nke redispersible latex ntụ ntụ
ntụ ntụ latex enwere ike agbasaa na-ejikarị eme ihe na: ime na mputa mgbidi putty ntụ ntụ, seramiiki tile nrapado, seramiiki tile na-atụ gị n'ụlọnga, onye na-ahụ maka ntụ ntụ ntụ ntụ, ngwa mkpuchi mgbidi mpụta, ngwa agha na-ebuli onwe ya, ngwa ngwa ndozi, ngwa mma eji achọ mma, ngwa agha anaghị egbochi mmiri, mkpuchi mputa akọrọ agwakọta ngwa agha. . N'ime ngwa agha, ebumnuche bụ imeziwanye mgbakasị ahụ, modul na-agbanwe dị elu na adịghị ike ndị ọzọ nke ngwa ngwa ciment ọdịnala, na-enye ya ike mgbanwe dị mma na ike njikọta ike iji guzogide na igbu oge ọgbọ nke mgbawa ciment. N'ihi nguzobe nke netwọk mmekọrịta interpenetrating n'etiti polymer na ngwa agha, a na-emepụta ihe nkiri polymer na-aga n'ihu na pores, na-ewusi njikọ dị n'etiti nchịkọta na igbochi ụfọdụ pores na ngwa agha, Ya mere, ngwa agha gbanwere mgbe ike siri ike nwere ọganihu dị ịrịba ama. na arụmọrụ tụnyere ụrọ ciment.
Oge nzipu: Ọgọst-04-2023