Emulsion da redispersible latex foda iya samar da high tensile ƙarfi da bonding ƙarfi a kan daban-daban kayan bayan fim samuwar, su ana amfani da su a matsayin na biyu daure a turmi don hada tare da inorganic daure ciminti, ciminti da polymer bi da bi Ba da cikakken wasa ga daidai ƙarfin don inganta wasan kwaikwayon na turmi.
Ta hanyar lura da microstructure na polymer-cement composite abu, an yi imani da cewa ƙari na redispersible latex foda zai iya sa polymer ya zama wani fim kuma ya zama wani ɓangare na bangon rami, kuma ya sa turmi ya zama cikakke ta hanyar ƙarfin ciki, wanda ke inganta ƙarfin ciki na turmi. Ƙarfin polymer, don haka inganta damuwa na rashin ƙarfi na turmi da kuma ƙara ƙarfin ƙarshe.
Tsarin microstructure na polymer a cikin turmi bai canza ba na dogon lokaci, kuma yana kula da kwanciyar hankali, ƙarfin sassauci da matsawa, da kuma hydrophobicity mai kyau. The samuwar inji redispersible latex foda a kan ƙarfin tayal adhesives gano cewa bayan da polymer ta bushe a cikin wani fim, da polymer film Forms a m dangane tsakanin turmi da tayal a daya hannun, da kuma a daya hannun, da polymer a cikin sabo turmi Ƙara da iska abun ciki na turmi da kuma rinjayar da samuwar da wettability na surface, sa'an nan kuma a lokacin da polima yana da tasiri a kan aiwatar da ruwa da ruwa, da kuma a lokacin da kuma a lokacin da tsarin hydrka. na siminti a cikin ɗaure, wanda zai taimaka wajen inganta Bond ƙarfi yana da mafi alhẽri taimako.
Ƙara redispersible latex foda zuwa turmi iya muhimmanci inganta bonding ƙarfi da sauran kayan, saboda hydrophilic latex foda da ruwa lokaci na ciminti dakatar shiga cikin pores da capillaries na matrix, da kuma latex foda shiga cikin pores da capillaries. Fim na ciki an kafa shi kuma yana da tabbaci a kan farfajiyar ƙasa, don haka tabbatar da kyakkyawar haɗin gwiwa tsakanin siminti da kayan aiki.
Ingantaccen foda na latex a kan aikin turmi shine saboda gaskiyar cewa latex foda shine babban ƙwayar kwayoyin halitta tare da kungiyoyin polar. Lokacin da aka haɗu da foda na latex tare da ƙwayoyin EPS, ɓangaren da ba na iyakacin duniya ba a cikin babban sarkar latex foda polymer zai zama tallan jiki na jiki tare da fuskar EPS maras iyaka. Ƙungiyoyin polar a cikin polymer suna fuskantar waje a saman sassan EPS, don haka ƙwayoyin EPS sun canza daga hydrophobicity zuwa hydrophilicity. Saboda gyaggyarawa na farfajiyar EPS ta hanyar latex foda, yana magance matsalar cewa ƙwayoyin EPS suna cikin sauƙin fallasa ruwa. Mai iyo, matsalar manyan yadudduka na turmi. A wannan lokacin, lokacin da aka ƙara siminti da haɗuwa, ƙungiyoyin polar suna tallatawa a saman sassan EPS suna hulɗa tare da barbashi na siminti kuma suna haɗuwa a hankali, ta yadda za a iya inganta aikin turmi na EPS. Wannan yana nunawa a cikin gaskiyar cewa ƙwayoyin EPS suna sauƙin jika ta hanyar manna siminti, kuma ƙarfin haɗin gwiwa tsakanin su biyu yana inganta sosai.
Lokacin aikawa: Maris 18-2023