Putty bụ ihe ndabere nke a na-ejikarị eme ihe n'ịrụ ụlọ ịchọ mma, na àgwà ya na-emetụta ndụ ọrụ na mmetụta ịchọ mma nke mkpuchi mgbidi. Ike njide na mgbochi mmiri bụ ihe ngosi dị mkpa maka ịlele arụmọrụ putty.ntụ ntụ latex enwere ike agbasa, dị ka ihe organic polymer gbanwetụrụ, na-arụ ọrụ dị mkpa n'ịkwalite arụmọrụ putty.
1. Usoro nke omume nke redispersible latex ntụ ntụ
Redispersible latex ntụ ntụ bụ ntụ ntụ kpụrụ site na ịgba ihicha nke polima emulsion. Ọ nwere ike re-emulsify na-etolite a kwụsiri ike polymer dispersion usoro mgbe ịkpọtụrụ mmiri, nke na-ekere òkè na-eme ka bonding ike na mgbanwe nke putty. Isi ọrụ ya gụnyere:
Na-emewanye ike njikọta: ntụ ntụ latex na-agbanwe agbanwe na-etolite ihe nkiri polymer n'oge usoro ihicha nke putty, ma na-emekọrịta ihe na ihe gelling inorganic iji meziwanye ikike njikọta ihu.
Ime ka mmiri na-eguzogide mmiri: Latex ntụ ntụ na-etolite netwọk hydrophobic na nhazi nke putty, na-ebelata ntinye mmiri na ime ka mmiri na-eguzogide mmiri.
Ịmalite mgbanwe: Ọ nwere ike ibelata brittleness nke putty, melite ikike nrụrụ, ma belata ihe ize ndụ nke cracks.
2. Ọmụmụ nnwale
Nnwale ihe
Ihe ndabere: ntụ ntụ nke sitere na ciment
Uzuzu latex na-agbanwe agbanwe: ethylene-vinyl acetate (EVA) copolymer latex ntụ ntụ
Ihe mgbakwunye ndị ọzọ: thickener, onye na-ejigide mmiri, ihe ndochi, wdg.
Usoro ule
A kwadebere Putties nwere ụdị ntụ ntụ latex dị iche iche (0%, 2%, 5%, 8%, 10%) n'otu n'otu, na-anwale ike njikọ ha na mgbochi mmiri. Ekpebiri ike nkekọ ahụ site na nnwale ndọpụ, na a na-enyocha ule nguzogide mmiri site na njide ike mgbe imikpu n'ime mmiri maka awa 24.
3. Nsonaazụ na mkparịta ụka
Mmetụta nke ntụ ntụ latex nwere ike ịgbasa na ike njikọta
Nsonaazụ ule na-egosi na na mmụba nke usoro onunu ogwu RDP, ike njikọ nke putty na-egosi omume nke mbu na-abawanye na mgbe ahụ kwụsie ike.
Mgbe usoro ọgwụgwọ RDP na-abawanye site na 0% gaa na 5%, ike njikọta nke putty na-akawanye mma, n'ihi na ihe nkiri polymer nke RDP mere na-eme ka njikọ dị n'etiti ihe ndabere na putty.
Gaa n'ihu na-abawanye RDP karịa 8%, uto nke ike njikọ na-adị larịị, na ọbụna ntakịrị ibelata na 10%, nke nwere ike ịbụ n'ihi na oke RDP ga-emetụta usoro siri ike nke putty ma belata ike interface.
Mmetụta nke ntụ ntụ latex na-agbanwe agbanwe na nguzogide mmiri
Nsonaazụ nyocha nke mmiri na-egosi na ọnụọgụ RDP nwere mmetụta dị ukwuu na nguzogide mmiri nke putty.
Ike njikọ nke putty na-enweghị RDP belatara nke ukwuu mgbe ọ gbasasịrị na mmiri, na-egosi nguzogide mmiri na-adịghị mma.
Mgbakwunye nke RDP kwesịrị ekwesị (5%-8%) na-eme ka putty bụrụ nnukwu ihe mejupụtara organic-inorganic composite, na-eme ka nguzogide mmiri dịkwuo mma, ma na-eme ka njide ike dịkwuo mma mgbe awa 24 nke imikpu mmiri gasịrị.
Otú ọ dị, mgbe ọdịnaya RDP karịrị 8%, mmụba nke nguzogide mmiri na-ebelata, nke nwere ike ịbụ n'ihi na ihe ndị dị ukwuu nke organic na-ebelata ikike mgbochi-hydrolysis nke putty.
Enwere ike nweta nkwubi okwu ndị a site na nyocha nnwale:
Ọnụ ego kwesịrị ekwesịntụ ntụ latex redisperable(5% -8%) nwere ike imeziwanye ike njikọta na nguzogide mmiri nke putty.
Oke iji RDP (> 8%) nwere ike imetụta usoro siri ike nke putty, na-ebute mbelata ma ọ bụ ọbụna ibelata na nkwalite ike njikọ na mgbochi mmiri.
Ekwesịrị imezi usoro onunu kacha mma dabere na ngwa ngwa ngwa putty iji nweta nguzozi kachasị mma n'etiti arụmọrụ na ọnụ ahịa.
Oge nzipu: Mar-26-2025