Ndi mitundu yanji ya ufa wa polima (RDP) womwe ulipo?

Redispersible polymer powder (RDP) ndizofunikira polima zowonjezera zomwe zimagwiritsidwa ntchito kupititsa patsogolo ntchito za simenti, gypsum-based, laimu-based and laimu-mortar. RDP imathandizira magwiridwe antchito azinthu izi kudzera munjira zake zomangira, kulimbikitsa, kukana ming'alu, kukana madzi, ndi zina zambiri, ndipo imagwiritsidwa ntchito kwambiri pomanga.

Mitundu yayikulu ya RDP

Mitundu ya RDP imayikidwa makamaka kutengera mtundu wa gawo lapansi lomwe amapangidwa, gawo logwiritsira ntchito komanso mawonekedwe ake. Ma RDP odziwika bwino ndi awa:

Mtundu wa ethylene-vinyl acetate copolymer (EVA):

Mbali: Ethylene-vinyl acetate copolymer ndi imodzi mwa mitundu yodziwika bwino ya RDP. Ili ndi kusinthasintha kwakukulu komanso kumamatira, ndipo imapereka kukana kwamadzi bwino komanso kukana nyengo.
Ntchito: Amagwiritsidwa ntchito makamaka pa zomatira matailosi, zida zodziyimira pawokha, zida zakunja zotchinjiriza khoma ndi magawo ena.
Ubwino: Amapereka kulimba kwabwino komanso kusinthasintha, koyenera nthawi zina zomwe zimafuna kusinthasintha ndi kumamatira.
Zoipa: Chifukwa cha kuchuluka kwa ethylene, magwiridwe ake atha kukhala osakwanira pang'ono pazinthu zina zokhala ndi mphamvu zambiri.

Ethylene-vinyl acetate-vinyl acetate terpolymer (VeoVa/EVA) mtundu:
Mawonekedwe: Mtundu uwu wa RDP umayambitsa VeoVa (vinyl ester) pamaziko a ethylene ndi vinyl acetate copolymerization, yomwe imapangitsa kuti madzi asasunthike komanso kukhazikika kwazinthuzo.
Ntchito: Amagwiritsidwa ntchito mu zokutira kunja khoma ndi mankhwala gypsum, etc.
Ubwino: Imakhala ndi kukana kwamadzi bwino komanso kukana kwamankhwala, koyenera kugwiritsa ntchito panja komanso mwankhanza.
Zoipa: Poyerekeza ndi mtundu wa EVA wamba, mtengo wake ukhoza kukhala wokwera pang'ono.

Mtundu wa styrene-butadiene copolymer (SB):
Mawonekedwe: Amapangidwa makamaka ndi ma styrene ndi butadiene monomers, ndipo ali ndi zinthu zabwino zomangirira, kusinthasintha komanso kukana madzi.
Kugwiritsa ntchito: Nthawi zambiri amagwiritsidwa ntchito pazomatira matailosi ndi ma putty osinthika.
Ubwino: Kulumikizana kwabwino komanso kusinthasintha, komanso kuchita bwino kwambiri pakukana madzi.
Zoipa: Ikhoza kukalamba pansi pa kuwala kwa ultraviolet.

Mtundu wa vinyl acetate-ethylene copolymer (VAE):
Mawonekedwe: Ndi copolymer ya vinyl acetate ndi ethylene, yosinthika kwambiri komanso kukana madzi.
Ntchito: Ndi oyenera zomatira matailosi, kunja kwa khoma kutchinjiriza kachitidwe, gypsum-based self-leveling, etc.
Ubwino: Imapereka kumamatira bwino komanso kukana madzi, ndipo imakhala ndi kukana kwamankhwala.
Zoipa: Mtengo wake ndi wokwera kwambiri.

Mtundu wa Acrylic copolymer (Akriliki):
Mbali: Chigawo chachikulu ndi acrylic ester, chomwe chimakhala ndi zomatira komanso kusinthasintha.
Ntchito: Amagwiritsidwa ntchito kwambiri mumatope okongoletsera, zomatira matailosi, gypsum ndi zipangizo zina.
Ubwino: Kumamatira kwabwino komanso kusinthasintha, komanso kukana kwambiri kwa UV.
Zoyipa: Chifukwa cha kukwera mtengo kwa zida za acrylic, mtengo wamtundu uwu wa RDP ndiwokweranso.

Ntchito ndi kugwiritsa ntchito RDP

Kuchita bwino kwa mgwirizano:
RDP imagwira ntchito yolumikizira zinthuzo, imathandizira kumamatira kwa zomatira, ndikuwongolera kulumikizana pakati pa zomangira ndi gawo lapansi.
Malo ogwiritsira ntchito amaphatikizapo zomatira matailosi, matope omangira, ndi zina.

Kusinthasintha kowonjezereka ndi kukana kwa ming'alu: Powonjezera RDP, kusinthasintha kwa zinthuzo kumakhala bwino kwambiri, zomwe zimathandiza kupewa kuchitika kwa ming'alu.
Nthawi zambiri amagwiritsidwa ntchito pamakina otchinjiriza, putty flexible, kukonza zida, etc.

Kupititsa patsogolo kusamva madzi komanso kusagwira madzi:
RDP imathandizira kukana kwamadzi pazinthuzo, ndikupangitsa kuti ikhale yokhazikika pamalo a chinyezi.
Amagwiritsidwa ntchito mu zokutira zopanda madzi, zokutira kunja khoma, etc.

Kupititsa patsogolo ntchito yomanga:
RDP ikhoza kupititsa patsogolo ntchito yomanga ya zida zowuma za ufa, kupanga zomangamanga kukhala zosavuta komanso zogwira mtima.
Amagwiritsidwa ntchito kwambiri pazinthu zodziyimira pawokha, zokutira, etc.

Kukhazikika kwamphamvu komanso kukana kwanyengo: Chifukwa cha kuwonjezera kwa RDP, kulimba komanso kukana kwanyengo kwa zinthuzo kumapita patsogolo kwambiri, ndipo imatha kupirira kuyesedwa kwa malo ovuta.
Amagwiritsidwa ntchito pamakina akunja, zokutira padenga, ndi zina.

Malingaliro pakusankha RDP yoyenera

Zochitika zantchito:
Sankhani mtundu woyenera wa RDP molingana ndi momwe mungagwiritsire ntchito, mwachitsanzo, mapulogalamu akunja amafunikira RDP yolimbana ndi nyengo.

Kuwongolera mitengo:
Pamaziko owonetsetsa kuti magwiridwe antchito, ndikofunikira kuganizira zamtengo wapatali ndikusankha RDP yachuma.

Kugwirizana:
RDP iyenera kugwirizana bwino ndi zida zina kuti zitsimikizire kukhazikika ndi kusasinthasintha kwa magwiridwe antchito.

Zofunikira pakuchita:
Sankhani mtundu woyenera wa RDP molingana ndi zofunikira (monga kusinthasintha, kumamatira, kukana madzi, ndi zina).

Redispersible latex ufa umagwira ntchito yofunika kwambiri pazomangira zamakono, ndipo mitundu yake yosiyanasiyana imapereka mayankho osinthika pazosowa zosiyanasiyana zomanga. Kusankha mtundu woyenera wa RDP kumatha kupititsa patsogolo magwiridwe antchito a zida zomangira, potero kumapangitsa kuti ntchito yomanga ikhale yabwino komanso yolimba.