Domin inganta brittleness da high na roba modulus na gargajiya siminti turmi a turmi, yawanci ya zama dole don ƙara redispersible latex foda a matsayin ƙari, wanda zai iya ba da siminti turmi mai kyau sassauci da tensile ƙarfi.Don tsayayya da jinkirin haɓakar ƙwayar simintin ƙwanƙwasa, saboda polymer da turmi suna samar da tsarin cibiyar sadarwa mai tsaka-tsaki, an kafa fim din polymer mai ci gaba a cikin pores, wanda ke ƙarfafa haɗin kai tsakanin tarawa da kuma toshe sassan a cikin turmi Pores, don haka gyaran gyare-gyare. turmi bayan taurin ya inganta sosai fiye da turmi siminti.
A latex foda an kafa ta high zafin jiki, high matsa lamba, fesa bushewa da homopolymerization tare da daban-daban aiki ƙarfafa micropowders, wanda zai iya muhimmanci inganta bonding ikon da tensile ƙarfi na turmi, kuma yana da kyau yi yi na anti-fadowa, ruwa riƙewa da thickening. , Juriya na ruwa da daskarewa-narke juriya , Kyakkyawan juriya na tsufa mai zafi, sauƙi mai sauƙi, sauƙin amfani.Xindadi latex foda yana da kyakkyawar dacewa tare da ciminti, ana iya narkar da shi gaba ɗaya a cikin busassun busassun busassun turmi mai gauraya, baya rage ƙarfin ciminti bayan warkewa, ba wai kawai yana kula da mannewa mai kyau ba, abubuwan samar da fim da sassauci, amma kuma yana da kyau. Juriya na yanayi, kwanciyar hankali, aikin haɗin gwiwa da juriya.Bayan bushewa, zai iya hana yashwar iska na acidic akan bango yadda ya kamata, kuma ba shi da sauƙi a juyewa da lalata bayan an jika.Zai iya haɓaka ƙarfin samfurin.Ƙara foda mai sake tarwatsewa zuwa foda da turmi na iya ƙara ƙarfinsa, kuma yana taimakawa sosai don haɓaka taurin.Yana da ingantaccen aikin hana ruwa, ƙarfin haɗin gwiwa mai kyau, kuma yana iya haɓaka elasticity na turmi kuma yana da tsayin buɗewa, kuma yana ba da turmi tare da kyakkyawan juriya na alkali, kuma yana iya haɓaka mannewa / mannewa da juriya na juriya na turmi.Bugu da ƙari ga ƙarfi, sa juriya da haɓakawa, yana da ƙarfi mafi ƙarfi a cikin sassauƙan turmi mai hana fasawa.
A ka'idar magana, da latex foda tare da gilashin canjin zafin jiki a ƙasa 5 ° C ya fi sauƙi kuma ana amfani da shi a cikin turmi na bango na waje, kuma ana amfani da latex foda tare da zafin jiki na gilashi sama da 10 ° C a cikin mannewa da matakin kai. turmi .
Dangane da abun da ke ciki na turmi, aikin aikace-aikacen turmi kuma zai shafi canjin ƙarar adadin foda mai iya tarwatsawa: adadin ƙarar foda mai yuwuwa yana ƙasa da 1%, wanda ke da takamaiman tasiri. akan ginin da mannewa da turmi;Bugu da ƙari na redispersible latex foda shine 1, 2.0%, wanda ke inganta ƙarfin, juriya na ruwa da sassauci na turmi;Bugu da kari na redispersible latex foda ne 2.0, 5%, forming wani cibiyar sadarwa polymer fim a cikin turmi.A ƙarƙashin yanayi daban-daban da musaya, ƙarfi da sassauƙan turmi a fili suna inganta.
A cikin yanayin babban abun ciki na latex foda, tsarin polymer a cikin turmi da aka warke sannu a hankali ya wuce lokacin samfurin hydration na inorganic, kuma turmi yana fuskantar canji mai inganci kuma ya zama jiki na roba, yayin da samfurin hydration na ciminti ya zama ”filler. ".Fim ɗin da aka kirkira da foda mai iya tarwatsawa a kan mahaɗa yana taka wata muhimmiyar rawa, wato, don haɓaka mannewa ga kayan da aka tuntuɓa, wanda ya dace da wasu wuraren da ke da wuyar mannewa, kamar ƙarancin shayar ruwa ko rashin ƙarfi. abin sha (kamar santsin kankare da siminti kayan saman, faranti na ƙarfe, tubalin kamanni, filayen bulo mai ƙyalƙyali, da sauransu) da saman kayan halitta (kamar allunan EPS, robobi, da sauransu) suna da mahimmanci musamman.Domin haɗin kayan ta hanyar manne-kanikanci yana samuwa ta hanyar ka'idar haɗawa ta inji, wato, slurry na hydraulic yana shiga cikin gibba na sauran kayan, a hankali yana ƙarfafawa, kuma a ƙarshe ya kama turmi kamar maɓalli da aka saka a cikin kulle. .A saman kayan, don saman saman da ke da wuyar haɗawa, saboda rashin iyawa yadda ya kamata ya shiga cikin kayan don samar da ingantacciyar ingantacciyar injin, turmi tare da adhesives na inorganic kawai ba a haɗa shi da kyau ba, kuma electron Duban microscope shima yana da kyau sosai.Ya tabbatar da haka.Tsarin haɗin kai na polymers ya bambanta.Polymers bond tare da surface na sauran kayan da intermolecular sojojin, mai zaman kansa daga porosity na surface (ba shakka, wani m surface da wani ƙara lamba surface zai inganta bonding karfi) , wanda shi ne mafi fili a cikin hali na Organic substrates, kuma lura da na'urorin na'urorin lantarki na lantarki kuma yana tabbatar da fifikon ƙarfinsa na mannewa.
Foda na latex yana canza daidaito da slipperness na tsarin a cikin yanayin hadewar rigar, kuma an inganta haɗin kai ta hanyar ƙara latex foda.Bayan bushewa, yana samar da shimfidar wuri mai santsi kuma mai yawa tare da haɗin kai, kuma yana inganta tasirin yashi, tsakuwa da pores., wadatar da shi a cikin fim a mahaɗin, wanda ke sa mannen tayal ya fi sauƙi, yana rage maɗaukaki na roba, yana ɗaukar damuwa na nakasar thermal zuwa babban matsayi, kuma yana da juriya na ruwa a cikin mataki na gaba, kuma zafin jiki na buffer da nakasar kayan aiki ba daidai ba ne. .Za'a iya yin la'akari da sassauƙa da rigidity na latex foda gabaɗaya bisa ga yanayin canjin gilashin.Idan zafin canjin gilashin yana ƙasa da digiri 0, ya fi sauƙi.Wani nau'in foda na latex da ake buƙata a cikin turmi an ƙaddara gabaɗaya bisa ga halayen aikin samfur.Tile m yana buƙatar amfani da foda na latex tare da mafi kyawun mannewa.
Lokacin aikawa: Maris 14-2023