na farko. Da farko ku fahimci meneneredispersible polymer foda.
Ana tarwatsa polymer foda sune polymers ɗin da aka ƙera daga emulsions na polymer ta hanyar bushewar bushewa daidai (da zaɓin abubuwan da suka dace). A busassun polymer foda jũya a cikin wani emulsion a lõkacin da ta ci karo da ruwa, da kuma za a iya dehydrated sake a lokacin coagulation da hardening tsari na turmi, sabõda haka, polymer barbashi samar da wani polymer jiki tsarin a cikin turmi, wanda shi ne kama da aikin aiwatar da tsarin. da emulsion polymer, wanda zai iya inganta ciminti turmi. tasirin jima'i. Emulsion busassun foda modified turmi ana kiransa bushe foda turmi (wanda kuma aka sani da bushe gauraye turmi, bushe gauraye turmi). Tun da busassun foda baya buƙatar yin la'akari da tsarin emulsion da kwanciyar hankali kamar emulsions polymer, ƙaramin adadin admixture na iya sa turmi ya cimma abubuwan da ake so, kuma yana da fa'idodi na marufi mai sauƙi, ajiya, sufuri da wadata fiye da emulsion, antifreeze kuma babu. mold girma, Matsalar ƙwayoyin cuta masu rai, da fa'idar da za a iya sanya ta ta zama samfuri mai kashi ɗaya tare da marufi da aka shirya kamar su siminti da yashi, kuma ana iya amfani da su bayan ƙara ruwa.
A lokacin da ake ji, Mix da Pack yashi, ciminti, emulsion bushe foda da sauran karin ƙarin a gaba, da kuma kawai bukatar ƙara wani adadin ruwa a lokacin a kan-site yi gini don yin busassun foda turmi tare da mafi yi. Jigon samar da bushe emulsion foda shi ne cewa polymer barbashi bayan redispersion na latex foda nuna barbashi size ko barbashi size watsawa kama da na asali emulsion polymer barbashi. Ya kamata a ƙara wani adadin colloid mai kariya kamar polyvinyl barasa a cikin emulsion, don haka za'a iya sake tarwatsa foda na latex a cikin emulsion lokacin da yake hulɗa da ruwa. Sai kawai tare da rarrabawa mai kyau na latex foda zai iya samun sakamako mafi kyau. . A tarwatsa polymer foda yawanci fari foda. Abubuwan da ke cikinta sun haɗa da:
Resin polymer: Yana cikin babban ɓangaren ɓangarorin foda na roba, kuma shine babban ɓangaren foda na polymer mai iya tarwatsawa.
Additive (na ciki): tare da guduro, yana taka rawar gyara guduro. Additives (na waje): Ana ƙara ƙarin kayan don ƙara haɓaka aikin foda na polymer mai tarwatsewa.
Colloid mai kariya: Layer na kayan hydrophilic wanda aka nannade a saman abubuwan da za a iya tarwatsawa na latex foda, colloid mai kariya na mafi yawan redispersible latex foda shine polyvinyl barasa.
Wakilin Anti-caking: Fitar ma'adinai mai kyau, galibi ana amfani da ita don hana foda na roba daga yin burodi a lokacin ajiya da sufuri da kuma sauƙaƙe kwararar foda na roba (wanda aka zubar daga jakunkuna na takarda ko tankuna.)
Yadda za a gane ingancin redispersible latex foda?
Hanyar 1, hanyar ash
Za a ɗauki ɗan ƙaramin foda mai iya sake tarwatsewa, sai a saka shi a cikin kwandon ƙarfe bayan an yi awo, sai a yi zafi har kusan digiri 500, bayan an datse shi a zafin jiki mai zafi na digiri 500, sai a sanyaya shi zuwa ɗaki, sannan a sake auna. Hasken nauyi da inganci mai kyau.
Hanya na biyu, hanyar rushewa
Ɗauki ɗan ɗanɗanon foda na latex wanda za'a iya sakewa kuma a narkar da shi a cikin ruwa sau 5, motsawa sosai kuma a bar shi ya tsaya na minti 5 kafin a duba. A ka'ida, ƙananan abubuwan da ke daidaitawa a cikin ƙasan Layer, mafi kyawun ingancin foda na polymer wanda za'a iya rarrabawa. Wannan hanyar tana da sauƙi kuma mai sauƙin yi.
Hanya na uku, hanyar samar da fim
Sai ki samu wani ingancin foda mai laushi da za a iya sakewa, sai a narke shi a cikin ruwa sau 2, sai a jujjuya shi daidai, a bar shi ya tsaya kamar minti 2, sai a sake jujjuya shi, a zuba maganin a cikin gilashin tsaftataccen lebur, sannan a sanya gilashin a cikin wani wuri mai inuwa. . Cire lokacin da ya bushe sosai. Kula da fim ɗin polymer da aka cire. Babban nuna gaskiya da inganci mai kyau. Sa'an nan kuma ja da tsaka-tsalle, tare da elasticity mai kyau da inganci mai kyau. Bayan haka, an yanke fim ɗin a cikin tube, a nutsar da shi a cikin ruwa, kuma an lura da shi bayan kwana 1, ingancin fim din ya ragu a cikin ruwa. Wannan hanya ta fi manufa
Lokacin aikawa: Oktoba-27-2022