Rayayyun LateX foda ne wanda aka saba amfani da kayan gargajiya na yau da kullun. Yana da foda da aka samo ta hanyar fesa bushe polymer emulsion tare da polyvinyl barasa a matsayin mai kariya mai kariya. Wannan foda zai iya sake farfadowa cikin ruwa a ko'ina bayan haɗuwa. , samar da emulsion. Bugu da kari na m polymer foda na iya inganta ruwan rijiyar rijiyar rijewa na tururuwa ciminti, kazalika da wasan kwaikwayon yi, sassauƙa, ajizai da ajizanci da juriya na casteded ciyawa. Wadannan suna gabatar da tsarin polymer mai rikitarwa a cikin ciminti turmi da kuma tasirinta akan aikin turmi.
Tasiri akan Tsarin Ciminti da Tsarin Maste
Muddin kayan aikin ciminti da aka ƙara tare da marix foda yana lambobin ruwa da sauri ya isa jingina da ƙwayoyin cuta. Tare da ci gaban hydring dauki, kayan hydreme sun ƙaru, da kuma barbashi polymer sannu a hankali a cikin capillary pores kuma kafa wani yanki-carfin kusa-conster a farfajiya da barbashi ciminti. Abubuwan da aka tattara polymer a hankali suna cike da pores, amma ba zai iya cika saman saman pores ba. Kamar yadda hydration ko bushewa yana rage danshi gaba, da polymer cakuda a cikin babban fim, forming wani cakuda da ke cikin slurry kuma inganta hydring bonding na samfurin don tara. Saboda samfurin hydrem tare da polymer siffofin rufe Layer a cikin dubawa, yana iya shafar haɓakar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar cuta da kuma m calmroxide lu'ulu'u; Hakanan saboda coagulate na polymer a cikin fim a cikin pores na canjin canjin hanyar dubawa, wanda ya sa kayan canjin polymer shine denser. Kungiyoyi masu aiki a cikin wasu kwayoyin Polymer zasu kuma samun haɗin haɗi tare da CA2 +, A13 + a cikin ciminti na tushensu, yana inganta damuwar ta ciminti, tana haɓaka damuwa na ciki. Kamar yadda gel ɗin gel din ya taso, ruwan ya lalace da barbashi na polymer ana tsare da sannu-sannu a hankali a cikin pores mai ƙarfi. Tare da ƙarin hydration na ciminti, ruwa a cikin pores na tsayayye yana raguwa, da kuma barbashi cakuda cakuda samfurin gel na cirewa tare da manyan pores.
Matsayin m polymer foda a cikin turmi na sarrafawa ta hanyar tafiyar matakai biyu na hydration da fim ɗin polymem. Samuwar tsarin hadin gwiwa na ciminti da samuwar fim na polymer a matakai 4:
(1) Bayan ƙarshen latex foda yana gauraye da turmi na ciminti, ana tarwatsa shi a cikin tsarin;
(2) Ana adana barbashi a saman kayan ciminti na ciminti na cirewa;
(3) barbashi polymer suna samar da ci gaba mai saurin ci gaba;
(4) A yayin aiwatar da hydration na ciminti, wanda aka sanya packed polymer a hankali kewaye cikin fim mai ci gaba, kuma samfuran hydring an haɗa su don samar da cikakken tsarin cibiyar sadarwa.
Da watsawar polymer foda na iya haifar da fim mai cike da ruwa (cibiyar sadarwar polymer) bayan bushewa, da wannan hanyar masarufi na zamani na iya inganta aikin ciminti; Wasu rukunin Polar na ciminti sun amsa aimy tare da samfurin hydration don samar da tsarin jiki na musamman da samfurin ciminti da rage ƙarar fasa. Bayan an ƙara yawan polymer mai rikitarwa, yawan hydration na farkon ciminti ya ragu, da kuma fim ɗin polymer zai iya inganta ciminti, don a inganta ciminti da yawa.
Tasiri a kan ƙarfin kayan ciminti
Emulsion da watsawa polymer foda na iya samar da karfin tensila da ƙarfi kan abubuwa daban-daban bayan samuwar fim. An haɗa su da ƙwaƙwalwar ƙwaƙwalwar ƙwaƙwalwar ƙwaƙwalwar ƙwaƙwalwar ƙwaƙwalwar ƙwaƙwalwar ƙwaƙwalwar ƙwaƙwalwar ƙwaƙwalwar ƙwaƙwalwar ta biyu a cikin turmi. Ciminti da polymer suna ba da gudummawa da suka dace don amfani da fannoni masu dacewa, saboda aiwatar da ƙwayar cuta za a iya inganta. Ta wurin lura da miclyrupture na polymer-sumin abu, an yi imani da cewa watsa polymer foda na iya yin fim ɗin polymer kuma ya zama wani ɓangare na pore bango. Taro karfi, don haka ya ƙara damuwa da damuwa na turmi da ƙara yawan ƙarin zuriya. A wasan da ake yi na polymer foda a cikin turmi aka yi nazari. An lura da Sem wanda bayan shekaru 10, masugidan da ke Microstructure da Morphology na polymer a cikin turmi bai canza ba, juriya da tsayayya da juriya da kuma juriya da hankali. ƙarfi da kyau hydrophobicity hydrophobicity. Wang Ziming et al. [11] Na yi nazarin tsarin kirkirar da aka sake dawo da martabar tivesives, kuma an bushe na polymer daya, kuma daga baya yayin aiwatar da saiti, da Polymer shima yana ba da gudummawa ga tsarin hydring da shrinkage na ciminti a cikin sandar. Mafi kyawun sakamako, duk wanda zai sami taimako mafi kyau don inganta ƙarfin haɗin.
Dingara da marigayi foda a turmi na iya inganta ƙarfin haɗin tare da wasu kayan aikin, saboda lokacin dakatarwar sumip tare, kuma latex foda yana ratsa cikin pores da kuma capilaries. Fim na ciki an kafa shi da tabbataccen adsorbed a farfajiya na substrate, ta haka tabbatar da kyakkyawan ƙarfin ƙarfi tsakanin abu mai lalacewa da substrateous.
Hadaka na aikin aiki na turmi ta marigayi foda shi ne cewa latex foda shine babban polymer na polar. Lokacin da marigayi foda ya gauraye da EPS barbashi, da ba polar da ba polar a cikin manyan sarkar polymer ba ta da amfani da sarkar na marigayi. Kungiyoyin Polar a cikin polymer suna daidaita a waje a farfajiya na barbashi na EPS, saboda haka cewa barbashi na EPS suna canzawa daga hydrophilicity. Iyo, matsalar babban turmi Layering. A wannan lokacin, ƙara ciminti da hadawa, ƙungiyoyin polar grouped a farfajiya na EPs suna hulɗa tare da ciminti da kuma haɗuwa a hankali, don haɓaka rufin EPS yana inganta sosai. An bayyana wannan a gaskiyar cewa barbashi na EPP slurry mai sauƙin turawa, da kuma karfi na ɗaukakawa tsakanin su biyun an inganta sosai.
Tasiri a kan sassauci na kayan ciminti
Rayayyun marigayi marigayi na iya inganta ƙarfin ƙarfi, ƙarfin adhenion da sauran kaddarorin turmi saboda na iya samar da fim ɗin polymer a saman barbashi. Akwai pores a farfajiya na fim, kuma farfajiya ta pores cike da turmi, don haka ya rage yawan damuwa. Kuma a karkashin aikin karfi na waje zai samar da annashuwa ba tare da lalacewa ba. Bugu da kari, turmi ya samar da tsayayyen kasusuwa bayan da ciminti key, da polymer a cikin kashin hadin gwiwa, mai kama da nama na jikin mutum. Fim ɗin da aka kafa ta hanyar polymer za a iya kwatanta su ga gidajen abinci da jijiyoyi, don haka tabbatar tabbatar da elasticity da tauri.
A cikin polymer-modified turmi tsarin turmin, da ci gaba kuma kammala fim ɗin polymer da ciminti denser gaba daya, kuma a lokaci guda yana cike majallan da kuma karfin gwiwa don sanya duka capillaries da kuma a lokaci guda suna cika dukkan capillaries da kuma a lokaci guda suna cika dukkan capillaries da kuma zubar da su don daidaita su gaba daya. Saboda haka, fim ɗin polymer zai iya watsa matsin lamba da tashin hankali na roba. Fim ɗin Polymer zai iya gadaje katakon shrinkage a polymer-turmin damar ke dubawa, da inganta ƙarancin turmi. Kasancewar m da sassauci na manger na gida yana inganta sassauci da elasticity na turmi, samar da cheesive da kuma dabici hali ga m sreleton. Lokacin da aka yi amfani da karfi na waje, tsarin yaduwar microcrack ya jinkirta saboda ci gaba cikin sassauci da elasticity har zuwa mafi girman damuwa. Yankin polymer na Interwoven kuma yana taka rawa wajen hana hadin gwiwar microcracks zuwa cikin-fasa. Sabili da haka, m polymer foda yana ƙaruwa da gazawar damuwa da kuma faɗuwar ƙasa na kayan.
Tasiri a kan rudani na kayan ciminti
Samuwar polymer ci gaba da fina-finai yana da matukar mahimmanci ga kaddarorin da aka tsara ta polymer-gyara cemp auna. A lokacin saiti da kuma wahalar tsari na ciminti manna, za a samar da yawa masu yawa da yawa a ciki, wanda ya zama sassa masu rauni na manna manna. Bayan an ƙara shi da polymer mai rikitarwa, an haɗa polymer foda Nan da nan ya watsar da emulsion a cikin sadarwa tare da ruwa mai yawan ruwa, kuma yana tarawa a cikin yanki mai arzikin ruwa (watau a cikin rami). Kamar yadda manna manna ke kafa da wahala, motsin polymer ya zama mafi ƙarfafawa, da tashin hankali na hade tsakanin ruwa da iska yana sa su a hankali tare. Lokacin da barbunan polymer suka fara tuntuɓar juna, ruwa a cikin hanyar sadarwar ta shafe ta ta hanyar capillaries, da kuma polymer ya samar da fim mai ci gaba a kusa da kogon, yana ƙarfafa waɗannan raunana. A wannan lokacin, fim ɗin polymer na iya kunna rawar lantarki na lantarki, amma kuma ba zai toshe rawar jiki ba, saboda kayan yana da kyakkyawan hydrophobicity na ruwa da iska.
Cemwartar ciminti ba tare da ƙara polymer ba a haɗa shi sosai. A akasin wannan, da polymer da aka gyara ta turmi yana sa kullun turmi ya haɗa saboda wanzuwar fim ɗin polymer, don haka samun ingantattun kayan aikin da yanayin yanayi. Jima'i. A cikin marigayi foda-da aka gyara ciminti turmi, latex foda zai kara makomar makircin maskir, amma rage makomar canjin ta dubawa da kuma yawan porollos na turmi ba canzawa. Bayan marigayi foda a cikin fim, pores a cikin turmi na iya zama mafi kyau da aka toshe, saboda yawan juyinanci ya fi ƙarfin gaske. Yana da sakamako mai kyau akan haɓaka ƙarfin turɓanci.
A halin yanzu, m polymer foda yayi wasa da muhimmiyar rawa a matsayin ƙari a matsayin ƙari don tururuwa gida. Dingara maimaitawar latex foda zuwa turmi na iya shirya samfuran iri iri iri kamar tila m, turmi mai narkewa, turmi mai narkewa da kayan rufe ruwa. Hanyar aikace-aikacen da aikin aikace-aikacen tururi. Tabbas, akwai matsaloli dacewa tsakanin foda mai ban sha'awa da ciminti da adawarta, wanda ya kamata a ba da isasshen kulawa a cikin takamaiman aikace-aikace.
Lokaci: Feb-20-2025