Matsayin foda mai narkewa a cikin turmi
A halin yanzu, yayin da ake karɓar samfuran turmi na musamman na busasshen foda a hankali kuma ana amfani da su sosai, mutane a masana'antar suna mai da hankali ga foda na latex mai sake wargazawa a matsayin ɗaya daga cikin manyan abubuwan da ake ƙarawa a turmi na busasshen foda na musamman, don haka halaye daban-daban sun bayyana a hankali. Foda na latex, foda na latex mai yawa, foda na resin latex, foda na resin mai tushen ruwa da sauransu.
Ƙarfin microscopic da aikin macroscopic na na'urarfoda mai latex mai sake wargazawaAn haɗa su a cikin turmi, kuma an yi nazarin wasu sakamakon nazari. Tsarin aikin foda mai sake narkewa na latex foda mai sake bushewa shine a shirya polymer emulsion a cikin cakuda wanda za'a iya amfani dashi don busar da feshi ta hanyar ƙara ƙarin abubuwa daban-daban, sannan a ƙara maganin kariya na colloid da anti-caking don yin siffar polymer bayan busar da feshi. Foda mai gudana yana sake narkewa a cikin ruwa. Ana rarraba foda mai sake narkewa a cikin turmi busasshe da aka gauraya daidai gwargwado. Bayan an gauraya turmi da ruwa, ana sake raba foda na polymer zuwa cikin ruwan da aka gauraya sabo kuma an sake yin emuls; saboda ruwan siminti, ƙafewar saman da kuma shan layin tushe, ramukan da ke cikin turmi ba su da matsala. Ci gaba da shan ruwa da yanayin alkaline mai ƙarfi da siminti ke bayarwa yana sa barbashin latex su bushe don samar da fim mai ci gaba da ruwa ba ya narkewa a cikin turmi. Wannan fim mai ci gaba yana samuwa ne ta hanyar haɗa barbashi guda ɗaya da aka warwatse a cikin emulsion zuwa jiki ɗaya. Kasancewar waɗannan fina-finan latex da aka rarraba a cikin turmi da aka gyara na polymer ne ke ba da damar turmi da aka gyara na polymer ya sami halaye waɗanda turmi mai tauri ba zai iya mallaka ba: saboda tsarin shimfiɗa kansa na fim ɗin latex, ana iya ɗaure shi zuwa tushe ko turmi A haɗin turmi da aka gyara na polymer da tushe, wannan tasirin zai iya inganta aikin haɗin turmi da tushe daban-daban, kamar mannewar tushe na musamman kamar tayal ɗin yumbu mai yawa da allon polystyrene; Wannan tasirin a cikin turmi zai iya kiyaye shi gaba ɗaya, a wata ma'anar, ƙarfin haɗin turmi yana inganta, kuma yayin da adadin foda na latex da za a iya sake rabawa ke ƙaruwa, ƙarfin haɗin tsakanin turmi da tushen siminti yana inganta sosai; Babban Kasancewar yankunan polymer masu sassauƙa da na roba sun inganta aikin haɗin gwiwa da sassaucin turmi, yayin da tsarin roba na turmi da kansa ya ragu sosai, yana nuna cewa an inganta sassaucinsa. Fim ɗin latex da aka gani a cikin turmi a cikin turmi da aka gyara na polymer a shekaru daban-daban. Fim ɗin da latex ya samar yana rarrabawa a wurare daban-daban a cikin turmi, gami da haɗin tushe-turmi, tsakanin ramuka, a kusa da bangon rami, tsakanin samfuran ruwan siminti, a kusa da barbashin siminti, a kusa da haɗin, da haɗin gwiwa-turmi. Wasu fina-finan latex da aka rarraba a cikin turmi da aka gyara ta hanyar foda polymer mai sake rarrabawa suna ba da damar samun kaddarorin da turmi mai tauri ba zai iya mallaka ba: fim ɗin latex zai iya ɗaure fashewar raguwa a mahaɗin tushe-turmi kuma ya ba da damar fashewar raguwa ta warke. Inganta rufe turmi. Inganta ƙarfin haɗin gwiwa na turmi: Kasancewar yankunan polymer masu sassauƙa da kuma masu roba suna inganta sassauci da sassauci na turmi, yana samar da haɗin kai da halayyar motsi ga kwarangwal mai tauri. Lokacin da aka yi amfani da ƙarfi, samuwar microcrack yana jinkiri har sai an kai ga matsin lamba mafi girma saboda ingantaccen sassauci da sassauci. Yankunan polymer da aka haɗa kuma suna hana haɗuwar ƙananan fasa zuwa cikin fasa masu shiga. Saboda haka, foda latex mai sake rarrabuwa yana ƙara damuwa da rashin nasara na kayan. Gyaran polymer zuwa turmi na siminti yana sa su biyun su sami ƙarin tasirin, ta yadda za a iya amfani da turmi da aka gyara na polymer a lokuta da yawa na musamman. Bugu da ƙari, saboda fa'idodin turmi mai busasshe a cikin kula da inganci, aikin gini, ajiya da kariyar muhalli, foda mai sake wargazawa yana ba da ingantacciyar hanyar fasaha don samar da samfuran turmi na busasshe na musamman.
Dangane da tsarin aikin foda polymer mai sake wargazawa a cikin turmi, mun gudanar da wasu gwaje-gwaje na kwatantawa don tabbatar da aikin wani abu da ke kasuwa a halin yanzu, wanda aka fi sani da foda na latex, a cikin turmi. 1. Kayan da aka yi amfani da su da sakamakon gwaji 1.1 Simintin da aka yi amfani da su: Alamar Conch 42.5 Yashi na Portland na yau da kullun Yashi: Kogin Yashi, Abubuwan da ke cikin Silicon 86%, Fineness 50-100 Ramin Cellulose Ether: Danko na cikin gida 30000-35000mpas (Brookfield Viscometer, Spindle 6, Speed 20) Foda mai kauri na calcium: foda mai kauri na calcium carbonate, fineness shine raga 325 Foda mai kauri na VAE: Foda mai kauri na latex mai kauri na VAE, ƙimar Tg shine -7°C, anan ana kiransa: foda mai kauri na latex mai kauri Zaren itace: ZZC500 na kamfanin JS Foda mai kauri na latex mai kauri na kasuwanci: foda mai kauri na latex mai kauri na kasuwanci, ana kiransa anan: foda mai kauri na latex mai kauri na kasuwanci 97. Tsarin gwajin injiniya shine: Yanayin gwajin dakin gwaje-gwaje na yau da kullun: zafin jiki (23±2)°C, danshin da ya dace (50±5)%, gwaji Saurin iska mai zagayawa a yankin bai wuce 0.2m/s ba. Allon polystyrene da aka faɗaɗa, yawansa shine 18kg/m3, an yanka shi zuwa 400 × 400 × 5mm. 2. Sakamakon gwaji: 2.1 Ƙarfin tauri a ƙarƙashin lokutan warkarwa daban-daban: An yi samfuran bisa ga hanyar gwajin ƙarfin tauri a cikin JG149-2003. Tsarin tauri a nan shine: bayan an samar da samfurin, ana warke shi na kwana ɗaya a ƙarƙashin yanayin dakin gwaje-gwaje na yau da kullun, sannan a saka shi a cikin tanda mai digiri 50. Mako na farko na gwaji shine: sanya shi a cikin tanda mai digiri 50 har zuwa rana ta shida, cire shi, manna kan gwajin tauri, A rana ta 7, an gwada saitin ƙarfin tauri. Gwajin a mako na biyu shine: sanya shi a cikin tanda mai digiri 50 har zuwa rana ta 13, cire shi, manna kan gwajin tauri, kuma gwada saitin ƙarfin tauri a rana ta 14. Mako na uku, mako na huɗu. . . da sauransu.
Daga sakamakon, za mu iya ganin cewa ƙarfinfoda mai latex mai sake wargazawaa cikin turmi yana ƙaruwa kuma yana kiyayewa yayin da lokacin da ke cikin yanayin zafi mai yawa ke ƙaruwa, wanda yake iri ɗaya da fim ɗin latex da foda mai narkewa zai samar a cikin turmi. Ka'idar ta yi daidai, tsawon lokacin ajiya, fim ɗin latex na foda mai narkewa zai isa wani adadin yawa, don haka tabbatar da manne turmi zuwa saman tushe na musamman na allon EPS. Akasin haka, foda mai narkewa 97 da ake samu a kasuwa yana da ƙarancin ƙarfi saboda ana adana shi a cikin yanayi mai zafi mai yawa na tsawon lokaci. Ƙarfin lalata na foda mai narkewa 97 ga allon EPS ya kasance iri ɗaya, amma ƙarfin lalata na foda mai narkewa 97 da ake samu a kasuwa yana ƙara muni.
Gabaɗaya dai, foda mai latex da ake samu a kasuwa da kuma foda mai latex da ake sake sake sake sake suna da hanyoyi daban-daban na aiki, kuma foda mai latex da ake sake sake sake sake sake, wanda ke samar da fim a sassa daban-daban na turmi, yana aiki a matsayin abu na biyu da ke ƙara jan hankali don inganta halayen jiki na turmi. Tsarin aikin ba shi da daidaito.
Lokacin Saƙo: Afrilu-25-2024