Matsayin foda na latex wanda za'a iya rarrabawa a cikin turmi
A halin yanzu, kamar yadda daban-daban na musamman busassun turmi foda kayayyakin da aka sannu a hankali yarda da kuma yadu amfani, mutane a cikin masana'antu kula da redispersible latex foda a matsayin daya daga cikin manyan Additives na musamman bushe foda turmi, don haka daban-daban halaye sun bayyana a hankali. latex foda, Multi-polymer latex foda, guduro latex foda, ruwa na tushen guduro latex foda da sauransu.
The microscopic Properties da macroscopic yi naredispersible latex fodaa cikin turmi an haɗa su, kuma ana nazarin wasu sakamakon binciken. The mataki inji redispersible latex foda Redispersible latex foda shi ne shirya polymer emulsion a cikin cakuda da za a iya amfani da feshi bushewa ta ƙara daban-daban Additives, sa'an nan kuma ƙara m colloid da anti-caking wakili don yin polymer form bayan fesa bushewa. Foda mai gudana kyauta zai iya tarwatsawa cikin ruwa. Ana rarraba foda mai iya tarwatsewa a cikin busasshiyar turmi da aka zuga. Bayan da turmi aka zuga da ruwa, da polymer foda an sake tarwatsa a cikin sabo-sabo gauraye slurry da emulsified sake; saboda hydration na siminti, ƙashin ƙasa da kuma shayar da tushe na tushe, pores a cikin turmi ba su da kyauta. Ci gaba da amfani da ruwa da kuma ƙaƙƙarfan yanayin alkaline da siminti ke bayarwa ya sa sassan latex su bushe don samar da fim mai ci gaba da ruwa mai narkewa a cikin turmi. Wannan fim mai ci gaba yana samuwa ta hanyar haɗuwa da barbashi guda ɗaya da aka tarwatsa a cikin emulsion zuwa jiki mai kama. Kasancewar waɗannan fina-finai na latex waɗanda aka rarraba a cikin turmi da aka canza na polymer wanda ke ba da damar turmi da aka canza polymer don samun halaye waɗanda turmi mai ƙarfi na ciminti ba zai iya mallaka ba: saboda tsarin ƙaddamar da kai na fim ɗin latex, ana iya ɗora shi zuwa tushe ko turmi A mahaɗar turmi da aka canza ta polymer da tushe, wannan tasirin zai iya haɓaka aikin haɗin gwiwa na musamman na irin wannan tushe na tushe. fale-falen fale-falen yumbu masu girma da allon polystyrene; Wannan tasirin da ke cikin turmi zai iya kiyaye shi gaba ɗaya, a wasu kalmomi, ƙarfin haɗin gwiwa na turmi yana inganta, kuma yayin da adadin foda na latex na sake sakewa ya karu, ƙarfin haɗin gwiwa tsakanin turmi da tushe na kankare yana inganta sosai; Babban Kasancewar yankuna masu sassaucin ra'ayi da na roba sosai sun inganta aikin haɗin gwiwa da sassauƙa na turmi, yayin da maɗaurin roba na turmi da kansa ya ragu sosai, yana nuna cewa an inganta sassaucin sa. Fim ɗin latex da aka gani a cikin turmi a cikin turmi siminti da aka gyara na polymer a shekaru daban-daban. Fim ɗin da aka kafa ta latex ana rarraba shi a wurare daban-daban a cikin turmi, ciki har da ƙirar tushe-turmi, tsakanin pores, a kusa da bangon pore, tsakanin samfuran hydration na siminti, a kusa da simintin siminti, a kusa da tarawa, da haɗin haɗin-turmi. Wasu fina-finai na latex da aka rarraba a cikin turmi da aka gyara ta hanyar foda polymer mai iya tarwatsewa suna ba da damar samun kaddarorin da tsayayyen turmi siminti ba zai iya mallaka ba: fim ɗin latex zai iya haɗa ɓarnar ɓarnar da aka yi a gindin turmi kuma ya ba da damar tsagewar ta warke. Inganta iyawar turmi. Haɓaka ƙarfin haɗin kai na turmi: Kasancewar yankuna masu sassaucin ra'ayi da ƙwanƙwasa na polymer suna inganta haɓaka da haɓakar turmi, suna ba da haɗin kai da haɓakar hali zuwa kwarangwal. Lokacin da aka yi amfani da karfi, ana jinkirin samuwar microcrack har sai an kai ga matsananciyar damuwa saboda ingantacciyar sassauci da elasticity. Matsalolin polymer ɗin da aka haɗa su ma suna hana haɗakar ƙananan ƙwanƙwasa zuwa cikin fasa. Sabili da haka, foda na latex wanda za'a iya tarwatsa yana ƙara yawan damuwa da rashin ƙarfi na kayan aiki. Gyaran polymer zuwa turmi na ciminti ya sa su biyun su sami ƙarin tasiri, ta yadda za a iya amfani da turmi da aka gyara a lokuta na musamman. Bugu da ƙari, saboda fa'idodin busassun busassun turmi a cikin kulawa mai inganci, aikin gini, adanawa da kariyar muhalli, foda na latex mai sake tarwatsewa yana ba da ingantacciyar hanyar fasaha don samar da samfuran busassun busassun na musamman.
Dangane da tsarin aikin foda na polymer foda a cikin turmi, mun gudanar da wasu gwaje-gwajen kwatance don tabbatar da aikin wani abu a halin yanzu akan kasuwa, wanda kuma aka sani da latex foda, a cikin turmi. 1. Raw kayan da sakamakon gwajin 1.1 Raw kayan ciminti: Conch Brand 42.5 Talakawa Portland Siminti Sand: Kogin Sand, Silicon Content 86%, Fineness 50-100 Mesh Cellulose Ether: Domestic danko 30000-35000mpas (Brookfield 65000mpas) (Brookfield Viscometer) Calcium, Viscometer, Calcium, Viscometer, Calcium, Viscometer, Calcium, Viscometer, Calcium Viscometer. foda, fineness ne 325 raga Latex foda: VAE-based redispersible latex foda, Tg darajar ne -7 ° C, a nan ake kira: redispersible latex foda Wood fiber: ZZC500 na JS kamfanin Commercially samuwa latex foda: wani kasuwanci samuwa latex foda, da ake kira a nan: kasuwanci samuwa latex foda 97. The inji gwajin gwaji ± 2 (ma'auni gwajin gwaji ± 2): Laboratory gwajin yanayin zafi: 2 ° C yanayin gwajin gwaji shine: (50±5)%, gwada Gudun iskar da ke yawo a yankin bai wuce 0.2m/s ba. Molded fadada polystyrene jirgin, girma yawa ne 18kg/m3, a yanka a cikin 400 × 400 × 5mm. 2. Sakamakon gwaji: 2.1 Ƙarfin juzu'i a ƙarƙashin lokacin warkewa daban-daban: An yi samfuran bisa ga hanyar gwaji na ƙarfin haɗin turmi a cikin JG149-2003. Tsarin magani a nan shine: bayan an samar da samfurin, ana warkewa na kwana ɗaya a ƙarƙashin yanayin dakin gwaje-gwaje, sannan a saka a cikin tanda mai digiri 50. Makon farko na gwaji shine: sanya shi a cikin tanda mai digiri 50 har zuwa rana ta shida, cire shi, manne kan gwajin fitar da shi, A rana ta 7, an gwada saitin ƙarfin cirewa. Jarabawar a cikin mako na biyu shine: sanya shi a cikin tanda mai digiri 50 har zuwa rana ta 13, cire shi, manna kan gwajin da aka cire, sannan a gwada ƙarfin cirewa a rana ta 14. Sati na uku, mako na hudu. . . da sauransu.
Daga sakamakon, za mu iya ganin cewa ƙarfin daredispersible latex fodaa cikin turmi yana ƙaruwa kuma yana kiyayewa yayin da lokaci a cikin yanayin zafi mai zafi ya karu, wanda shine daidai da fim din latex wanda foda mai redispersible zai samar a cikin turmi Ka'idar ta kasance daidai, tsawon lokacin ajiya, fim din latex na latex foda zai kai wani adadi mai yawa, don haka tabbatar da mannewa na turmi zuwa tushe na musamman na hukumar EPS. Sabanin haka, kasuwancin da ake samu na latex foda 97 yana da ƙananan ƙarfi kamar yadda aka adana shi a cikin yanayin zafi mai zafi na tsawon lokaci. Ƙarfin ɓarna na foda mai tarwatsewa ga hukumar EPS ya kasance iri ɗaya, amma ikon lalatar da ake samu na latex foda 97 ga hukumar EPS yana ƙara muni da muni.
Gabaɗaya magana, ana samun samfuran latex foda da foda mai iya tarwatsewa suna da hanyoyin aiki daban-daban, da kuma foda mai iya tarwatsawa, wanda ke samar da fim a sassa daban-daban na turmi, yana aiki azaman kayan gelling na biyu don haɓaka halayen zahiri na turmi. Tsarin aikin aikin bai dace ba.
Lokacin aikawa: Afrilu-25-2024