Powder Polymer Redispersible (RDP)wani foda ne wanda aka yi ta hanyar bushewar emulsion na polymer, wanda galibi ana amfani da shi a cikin kayan gini, sutura, adhesives, da tile adhesives. Babban aikinsa shine sake tarwatsawa cikin emulsion ta ƙara ruwa, samar da mannewa mai kyau, elasticity, juriya na ruwa, juriya mai tsauri, da juriya na yanayi.
Za a iya yin nazari akan abun da ke ciki na Redispersible Polymer Powder (RDP) daga bangarori da yawa, musamman ciki har da abubuwa masu zuwa:
1. Polymer guduro
Babban bangaren Redispersible Polymer Powder shine resin polymer, wanda yawanci polymer ne da aka samu ta hanyar emulsion polymerization. Resin polymer gama gari sun haɗa da:
Polyvinyl barasa (PVA): yana da kyau mannewa da kuma samar da fina-finai Properties kuma ana amfani da ko'ina a cikin kayan gini.
Polyacrylates (irin su polyacrylates, polyurethanes, da dai sauransu): suna da kyakkyawan elasticity, ƙarfin haɗin gwiwa, da juriya na ruwa.
Polystyrene (PS) ko ethylene-vinyl acetate copolymer (EVA): da aka saba amfani dashi don inganta abubuwan ƙirƙirar fim, haɓaka juriya na ruwa, da juriya na yanayi.
Polymethyl methacrylate (PMMA): Wannan polymer yana da kyau anti-tsufa da kuma bayyana gaskiya.
Wadannan resins na polymer suna samar da emulsion ta hanyar halayen polymerization, sa'an nan kuma an cire ruwan da ke cikin emulsion ta hanyar bushewa da bushewa ko daskare bushewa, kuma a ƙarshe an sami Redispersible Polymer Powder (RDP) a cikin foda.
2. Surfactants
Don kula da kwanciyar hankali tsakanin ƙwayoyin polymer kuma kauce wa haɓakawa a cikin foda, za a kara yawan adadin surfactants a yayin aikin samarwa. Matsayin surfactants shine don rage tashin hankali na sama tsakanin barbashi da kuma taimakawa barbashi watsawa cikin ruwa. Na kowa surfactants sun haɗa da:
Non-ionic surfactants (kamar polyethers, polyethylene glycols, da dai sauransu).
Anionic surfactants (kamar fatty acid salts, alkyl sulfonates, da dai sauransu).
Wadannan surfactants iya bunkasa dispersibility na Redispersible Polymer Powder (RDP) s, kyale latex foda don sake samar da wani emulsion bayan ƙara ruwa.
3. Fillers da thickeners
Domin daidaita aikin foda na latex da rage farashi, ana iya ƙara wasu filaye da masu kauri yayin samarwa. Akwai nau'ikan fillers da yawa, kuma na kowa sun haɗa da:
Calcium carbonate: filler inorganic da aka saba amfani da shi wanda zai iya ƙara mannewa da haɓaka ƙimar farashi.
Talc: na iya ƙara yawan ruwa da juriya na kayan.
Silicate ma'adanai: irin su bentonite, fadada graphite, da dai sauransu, na iya inganta tsaga juriya da ruwa juriya na abu.
Yawancin lokaci ana amfani da masu kauri don daidaita dankon samfurin don daidaita shi zuwa yanayin gini daban-daban. Abubuwan kauri na yau da kullun sun haɗa da hydroxypropyl methylcellulose (HPMC) da barasa na polyvinyl (PVA).
4. Anti-caking wakili
A cikin samfuran foda, don hana haɓakawa a lokacin ajiya da sufuri, ana iya ƙara ma'aikatan anti-caking yayin aikin samarwa. Anti-caking jamiái ne yafi wasu lafiya inorganic abubuwa, kamar aluminum silicate, silicon dioxide, da dai sauransu Wadannan abubuwa iya samar da wani m fim a saman latex foda barbashi don hana barbashi daga agglomerating tare.
5. Sauran additives
Redispersible Polymer Powder (RDP) na iya ƙunsar wasu abubuwan ƙari na musamman don inganta takamaiman kaddarorin:
UV-resistant wakili: inganta yanayin juriya da anti-tsufa ikon abu.
Wakilin Antibacterial: yana rage haɓakar ƙwayoyin cuta, musamman idan aka yi amfani da su a cikin yanayi mai ɗanɗano.
Plasticizer: yana inganta sassauci da juriya na latex foda.
Antifreeze: Hana kayan daga daskarewa a cikin ƙananan yanayin zafi, yana shafar gini da tasirin amfani.
6. Danshi
Ko da yake Redispersible Polymer Powder (RDP) yana cikin nau'i na busassun foda, kuma yana buƙatar wani nau'i na kula da danshi yayin aikin samarwa, kuma yawancin danshi ana sarrafa shi a ƙasa da 1%. Abubuwan da suka dace da danshi yana taimakawa wajen kiyaye ruwa da kwanciyar hankali na dogon lokaci na foda.
Matsayi da aikin Redispersible Polymer Powder (RDP)
Babban aikin Redispersible Polymer Powder (RDP) shine cewa ana iya sake tarwatsa shi don samar da emulsion bayan ƙara ruwa, kuma yana da mahimman halaye masu zuwa:
Kyakkyawan mannewa: Haɓaka ikon haɗin gwiwa na sutura da adhesives, da haɓaka ƙarfin haɗin gwiwa tsakanin kayan gini.
Ƙarfafawa da sassauci: Inganta haɓakar suturar, haɓaka juriya da juriya da tasiri.
Juriya na ruwa: Haɓaka juriya na ruwa na kayan, dace da amfani a waje ko yanayi mai laushi.
Juriya na yanayi: Haɓaka juriya na UV na kayan, rigakafin tsufa da sauran kaddarorin, da tsawaita rayuwar sabis.
Juriya na tsaga: Yana da juriya mai kyau kuma ya dace da buƙatun hana fashewa a cikin ayyukan gini.
RDPAna yin ta ta hanyar canza emulsion polymer zuwa foda ta hanyar tsari mai mahimmanci. Yana da kyawawan kaddarorin da yawa kuma ana amfani dashi ko'ina a cikin gini, sutura, adhesives da sauran filayen. Zaɓin da rabon kayan aikin sa kai tsaye yana shafar aikinsa na ƙarshe.
Lokacin aikawa: Maris 11-2025