farko. Da farko ku fahimci abin da yakefoda mai sake wargazawa na polymer.
Foda polymer masu warwatsewa polymers ne masu foda waɗanda aka samar daga polymer emulsions ta hanyar hanyar busar da feshi daidai (da zaɓin ƙarin abubuwa masu dacewa). Foda polymer busasshe yana juyawa zuwa emulsion lokacin da ya haɗu da ruwa, kuma ana iya sake bushewa yayin tsarin coagulation da taurare na turmi, don haka barbashi polymer suna samar da tsarin jikin polymer a cikin turmi, wanda yayi kama da tsarin aikin polymer emulsion, wanda zai iya inganta turmi siminti. Tasirin jima'i. Ana kiran turmi busasshen foda da aka gyara na emulsion turmi busasshe (wanda kuma aka sani da turmi busasshe, turmi busasshe). Tunda busasshen foda ba ya buƙatar la'akari da tsarin emulsion da kwanciyar hankali kamar polymer emulsions, ƙaramin adadin haɗin zai iya sa turmi ya cimma kaddarorin da ake so, kuma yana da fa'idodin marufi mai sauƙi, ajiya, sufuri da wadata fiye da emulsions, hana daskarewa da rashin haɓakar mold, Matsalar ƙwayoyin cuta masu rai, da fa'idar cewa za a iya sanya shi ya zama samfurin sashi ɗaya tare da marufi mai shirye-shirye kamar siminti da yashi, kuma ana iya amfani da shi bayan ƙara ruwa.
Lokacin shafawa, a haɗa a kuma haɗa yashi, siminti, foda busasshe na emulsion da sauran ƙarin kayan taimako a gaba, kuma kawai sai a ƙara wani adadin ruwa yayin ginin wurin don yin turmi busasshe na foda tare da ingantaccen aiki. Babban abin da ke haifar da samar da foda busasshe na emulsion shine cewa ƙwayoyin polymer bayan sake wargaza foda na latex suna nuna girman barbashi ko yaduwar girman barbashi kamar na ainihin barbashi na emulsion polymer. Ya kamata a ƙara wani adadin colloid mai kariya kamar polyvinyl barasa a cikin emulsion, don a iya sake wargaza foda na latex zuwa emulsion lokacin da ya taɓa ruwa. Sai da ingantaccen wargazawa ne kawai foda na latex zai iya samun mafi kyawun sakamako. . Foda polymer mai wargazawa yawanci fararen foda ne. Sinadaran sa sun haɗa da:
Resin polymer: Yana cikin tsakiyar ɓangaren barbashi na robar foda, kuma shine babban ɓangaren foda polymer mai sake wargajewa.
Ƙarin (na ciki): tare da resin, yana taka rawar gyara resin. Ƙarin (na waje): Ana ƙara ƙarin kayan don ƙara faɗaɗa aikin foda polymer mai warwatsewa.
Colloid mai kariya: wani yanki na kayan hydrophilic da aka nannade a saman barbashi na foda mai redispersible, colloid mai kariya na yawancin foda mai redispersible shine polyvinyl alcohol.
Maganin hana caking: Cikakken cika ma'adinai, wanda aka fi amfani da shi don hana caking foda na roba yayin ajiya da jigilar kaya, da kuma sauƙaƙe kwararar foda na roba (wanda aka zubar daga jakunkunan takarda ko tankuna).
Yadda ake gane ingancin foda mai latex mai narkewa?
Hanya ta 1, hanyar toka
A ɗauki wani adadin foda mai latex da za a iya sake wargazawa, a saka shi a cikin akwati na ƙarfe bayan an auna, a dumama shi har zuwa digiri 500, bayan an tace shi a zafin jiki mai yawa na digiri 500, a sanyaya shi zuwa zafin ɗaki, sannan a sake auna shi. Nauyi mai sauƙi da inganci mai kyau.
Hanya ta biyu, hanyar narkarwa
A ɗauki wani adadin foda mai narkewar latex sannan a narkar da shi sau 5 na ruwan, a gauraya sosai sannan a bar shi ya tsaya na minti 5 kafin a lura. A ƙa'ida, ƙarancin abubuwan da ke shiga cikin ƙasan, ingancin foda mai narkewar polymer zai fi kyau. Wannan hanyar tana da sauƙi kuma mai sauƙin yi.
Hanya ta uku, hanyar samar da fim
A ɗauki wani ingancin foda mai latex mai narkewa, a narkar da shi sau biyu a cikin ruwan, a gauraya shi daidai gwargwado, a bar shi ya tsaya na minti 2, a sake juyawa, a zuba ruwan a kan gilashi mai tsabta, sannan a sanya gilashin a wuri mai inuwa mai iska. A cire idan ya bushe gaba ɗaya. A lura da fim ɗin polymer da aka cire. Yana da haske sosai kuma yana da inganci. Sannan a ja shi daidai gwargwado, tare da laushi mai kyau da inganci mai kyau. Sannan a yanka fim ɗin a yanka, a nutsar da shi cikin ruwa, sannan a lura bayan kwana 1, ingancin fim ɗin ya ragu sosai a cikin ruwa. Wannan hanyar ta fi dacewa da manufa.
Lokacin Saƙo: Oktoba-27-2022