Redispersible polymer foda masana'antu tsari

Gabatarwa

Redispersible polymer foda (RDP) wani nau'i ne na polymer foda wanda za'a iya sakewa a cikin ruwa don samar da emulsion mai tsayi. Ana amfani da shi sosai a cikin masana'antar gine-gine a matsayin ƙari don inganta aikin kayan aikin ciminti. Ana samar da RDP ta hanyar da aka sani da bushewa-bushewa, wanda ya haɗa da atomization na maganin polymer zuwa foda mai kyau. Sai a busar da foda a niƙa zuwa girman da ake so.

Tsarin masana'antu na RDP ya ƙunshi matakai da yawa, gami da zaɓin polymer, shirye-shiryen bayani, atomization, bushewa, da niƙa. Ingancin samfurin ƙarshe yana dogara sosai akan ingancin albarkatun ƙasa da sigogin tsari da aka yi amfani da su yayin samarwa.

Zaɓin polymer

Mataki na farko a cikin tsarin masana'antu na RDP shine zaɓi na polymer mai dacewa. Zaɓin zaɓi na polymer ya dogara ne akan abubuwan da ake so na samfurin ƙarshe, kamar juriya na ruwa, mannewa, da sassauci. Abubuwan da aka fi amfani da su don samar da RDP sune vinyl acetate-ethylene copolymers, acrylic copolymers, da styrene-butadiene copolymer.

Shiri Magani

Da zarar an zaɓi polymer, sai a narkar da shi a cikin wani ƙarfi don samar da mafita. Abubuwan da aka fi amfani da su don samar da RDP sune ruwa da kaushi na halitta kamar ethanol da isopropanol. Matsakaicin maganin polymer yawanci tsakanin 10-20%.

Atomization

Mataki na gaba a cikin tsarin masana'antu na RDP shine atomization. Atomization shine tsari na karya maganin polymer zuwa ƙananan ɗigon ruwa. Ana yin wannan yawanci ta amfani da bututun ƙarfe mai ƙarfi ko rotary atomizer. Ana busar da ɗigon ruwa a cikin ruwan zafi mai zafi don zama foda.

bushewa

Ana bushe foda a cikin ruwan zafi mai zafi don cire sauran ƙarfi. Tsarin bushewa yawanci ana yin shi a yanayin zafi tsakanin 80-120 ° C. Lokacin bushewa ya dogara da nau'in polymer da aka yi amfani da shi, ƙaddamar da maganin, da girman ƙwayar da ake so.

Milling

Mataki na ƙarshe a cikin tsarin masana'antu na RDP shine niƙa. Milling shine tsarin nika foda zuwa mafi girman girman barbashi. Ana yin wannan yawanci ta amfani da injin niƙa ko ƙwallon ƙwallon ƙafa. Girman barbashi na samfurin ƙarshe shine yawanci tsakanin 5-50 microns.

Kammalawa

Redispersible polymer foda ne wani nau'i na polymer foda da za a iya sake tarwatsa a cikin ruwa don samar da barga emulsion. Ana amfani da shi sosai a cikin masana'antar gine-gine a matsayin ƙari don inganta aikin kayan aikin ciminti. Tsarin masana'antu na RDP ya ƙunshi matakai da yawa, gami da zaɓin polymer, shirye-shiryen bayani, atomization, bushewa, da niƙa. Ingancin samfurin ƙarshe yana dogara sosai akan ingancin albarkatun ƙasa da sigogin tsari da aka yi amfani da su yayin samarwa.