Cellulose ethers (HEC, HPMC, MC, da dai sauransu) da kuma redispersible polymer foda (yawanci bisa VAE, acrylates, da dai sauransu.)Additives biyu ne masu mahimmanci a cikin turmi, musamman bushe-bushe. Kowannensu yana da ayyuka na musamman, kuma ta hanyar ƙwaƙƙwaran haɗin kai, suna haɓaka aikin turmi gabaɗaya sosai. Farkon mu’amalarsu tana bayyana ne ta fuskoki kamar haka:
Cellulose ethers suna ba da maɓalli masu mahimmanci (tsarin ruwa da kauri):
Riƙewar ruwa: Wannan shine ɗayan mahimman ayyukan ether cellulose. Yana iya samar da wani fim na hydration tsakanin turmi barbashi da ruwa, muhimmanci rage yawan ruwa evaporation zuwa substrate (kamar porous tubali da tubalan) da kuma iska.
Tasiri akan foda polymer mai iya tarwatsawa: Wannan kyakkyawan riƙewar ruwa yana haifar da mahimman yanayi don sake rarrabuwar polymer foda don aiki:
Bayar da lokacin yin fim: ƙwayoyin foda na polymer suna buƙatar narkar da su cikin ruwa kuma a sake tarwatsa su cikin emulsion. A polymer foda sa'an nan coalesces cikin wani ci gaba, m polymer film kamar yadda ruwa a hankali ƙafe a lokacin da turmi bushewa tsari. Cellulose ether yana jinkirin ƙawancewar ruwa, yana ba da ƙwayoyin foda na polymer isasshen lokaci (lokacin buɗewa) don tarwatsawa daidai da ƙaura cikin ramukan turmi da musaya, a ƙarshe yana samar da ingantaccen inganci, cikakken fim ɗin polymer. Idan asarar ruwa ya yi sauri sosai, foda na polymer ba zai samar da cikakken fim ba ko kuma fim ɗin zai ƙare, yana rage tasirin ƙarfafawa.
Tabbatar da Ruwan Siminti: Ruwan siminti yana buƙatar ruwa.Abubuwan riƙe ruwana cellulose ether tabbatar da cewa yayin da polymer foda ya samar da fim din, siminti kuma yana karɓar isasshen ruwa don cikakken hydration, don haka yana haɓaka tushe mai kyau don farkon da kuma ƙarshen ƙarfin. Ƙarfin da aka samu ta hanyar ciminti hydration hade tare da sassauci na fim din polymer shine tushe don ingantaccen aiki.
Cellulose ether yana inganta iya aiki (kauri da iska):
Thickening / Thixotropy: Cellulose ethers yana ƙara haɓaka daidaito da thixotropy na turmi (lokacin kauri lokacin da har yanzu, thinning lokacin da aka zuga / amfani). Wannan yana inganta juriyar turmi zuwa sag (zamewa ƙasa a tsaye), yana sauƙaƙa watsawa da daidaitawa, yana haifar da kyakkyawan ƙarewa.
Tasirin shigar iska: Cellulose ether yana da ƙayyadaddun ikon shigar da iska, yana gabatar da ƙananan kumfa, uniform da barga.
Tasiri akan foda polymer:
Ingantacciyar watsawa: Danko mai dacewa yana taimakawa barbashin foda na latex suna watsewa daidai gwargwado a cikin tsarin turmi yayin haɗuwa kuma yana rage agglomeration.
Ingantaccen aikin aiki: Kyakkyawan kaddarorin gini da thixotropy suna sanya turmi mai ɗauke da latex foda ya fi sauƙi don ɗauka, yana tabbatar da cewa an yi amfani da shi daidai da ma'aunin, wanda ke da mahimmanci don cika tasirin haɗin gwiwa na latex foda a cikin dubawa.
Lubrication da kuma rage tasirin kumfa na iska: Kumfan iska da aka gabatar suna aiki azaman ƙwallo, yana ƙara haɓaka mai da iya aiki na turmi. A lokaci guda, waɗannan microbubbles suna ba da damuwa a cikin turmi mai tauri, suna ba da sakamako mai ƙarfi na latex foda (ko da yake wuce haddi na iska na iya rage ƙarfi, don haka ma'auni ya zama dole).
Redispersible polymer foda yana ba da haɗin kai mai sauƙi da ƙarfafawa (samuwar fim da haɗin kai):
Samar da fim ɗin polymer: Kamar yadda aka ambata a baya, yayin aikin bushewa na turmi, ƙwayoyin latex foda suna haɗuwa a cikin fim ɗin cibiyar sadarwar polymer mai girma uku.
Tasiri kan matrix turmi:
Ingantattun haɗin kai: Fim ɗin polymer na kunsa da gadoji samfuran hydration na siminti, barbashi siminti mara ruwa, masu cikawa da tarawa, suna haɓaka ƙarfin haɗin gwiwa (haɗin kai) tsakanin abubuwan da ke cikin turmi.
Ingantattun sassauƙa da juriya mai fashe: Fim ɗin polymer yana da sauƙi da sauƙi kuma yana ba da ƙarfin turmi mai ƙarfi. Wannan yana bawa turmi damar samun mafi kyawu da rarraba matsalolin da ke haifar da canje-canjen zafin jiki, canjin yanayi, ko ƴan ƙaura daga matsuguni, yana rage haɗarin fashewa sosai.
Ingantacciyar juriya da juriya da juriya: Fim ɗin polymer mai sassauƙa na iya ɗaukar tasirin tasirin tasiri da haɓaka juriya mai ƙarfi da juriya na turmi.
Rage modules na roba: sanya turmi ya zama mai laushi kuma ya fi dacewa da nakasawa na substrate.
Latex foda yana inganta haɗin fuska (haɓaka mu'amala):
Haɓakawa wurin aiki na ethers cellulose: Tasirin riƙe ruwa na ethers cellulose shima yana rage matsalar "rashin ruwa na tsaka-tsakin" wanda ya haifar da wuce kima da ruwa ta hanyar substrate. Mafi mahimmanci, ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar cuta (idan akwai).
Ƙirƙirar Layer mai ƙarfi mai ƙarfi: Fim ɗin polymer da aka kirkira a wurin mu'amala da ƙarfi yana ratsawa da anka a cikin ƙananan ƙwayoyin cuta (haɗin jiki). A lokaci guda, polymer da kanta yana nuna kyakkyawan mannewa (sinadarai / adsorption na jiki) zuwa nau'i-nau'i iri-iri (tunkare, bulo, itace, allunan rufin EPS / XPS, da dai sauransu). Wannan yana ƙara haɓaka ƙarfin haɗin turmi (manne) zuwa sassa daban-daban, duka da farko da kuma bayan nutsewa cikin ruwa da daskare-zagaye (juriya na ruwa da juriya na yanayi).
Haɓaka haɗin gwiwa na tsarin pore da dorewa:
Hanyoyin ether cellulose: Riƙewar ruwa yana inganta hydration na siminti kuma yana rage raƙuman raƙuman ruwa wanda ya haifar da ƙarancin ruwa; Tasirin shigar iska yana gabatar da ƙananan pores masu sarrafawa.
Tasirin foda na polymer: Membran polymer a wani yanki yana toshe ko gada ramukan capillary, yana sa tsarin ramukan ya zama ƙarami kuma ƙasa da alaƙa.
Effect Synergistic: Haɗuwar tasirin waɗannan abubuwa guda biyu yana inganta tsarin ramin turmi, yana rage sha ruwa da ƙara rashin ƙarfi. Wannan ba wai yana ƙara ƙarfin ƙarfin turmi ne kaɗai ba (daskare-narkewa da juriya na lalata gishiri), amma kuma yana rage yuwuwar ƙwanƙwasa saboda raguwar sha ruwa. Wannan ingantaccen tsarin pore kuma yana da alaƙa da ƙarfi mafi girma.
Cellulose ether ne duka biyu "tushen" da "garanti": shi ne samar da zama dole ruwa-reize yanayi (ba da damar ciminti hydration da latex foda fim samuwar), inganta workability (tabbatar da uniform turmi jeri), da kuma rinjayar da microstructure ta hanyar thickening da iska entrainment.
Redispersible latex foda shine duka "mai haɓaka" da "gada": yana samar da fim ɗin polymer a ƙarƙashin kyawawan yanayi da ether ɗin cellulose ya haifar, yana inganta haɓakar turmi sosai, sassauci, juriya, ƙarfin haɗin gwiwa, da dorewa.
Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙadda ) na Ƙarfafawa na Ƙaƙa na Ƙaƙa na Ƙaƙa ) na Ƙarfafawa na Latex. Ba tare da isasshen ruwa ba, latex foda ba zai iya cika aiki ba. Akasin haka, m bonding na latex foda diyya ga gaggautsa, fatattaka, da rashin isasshen mannewa na tsantsa tushen siminti kayan, muhimmanci inganta karko.
Haɗaɗɗen tasirin: Su biyun suna haɓaka junansu wajen haɓaka tsarin pore, rage shayarwar ruwa, da haɓaka dorewa na dogon lokaci, yana haifar da tasirin haɗin gwiwa. Saboda haka, a cikin turmi na zamani (irin su tile adhesives, na waje insulation plaster/ bonding turmi, turmi mai daidaita kai, turmi mai hana ruwa, da turmi na ado), ethers cellulose da foda na polymer da za a iya rarrabawa kusan koyaushe ana amfani da su biyu. Ta hanyar daidaita nau'in da adadin kowanne, ana iya ƙirƙira samfuran turmi masu inganci don biyan buƙatun aiki iri-iri. Tasirinsu na haɗin gwiwa shine mabuɗin haɓaka turmi na gargajiya zuwa manyan kayan aikin siminti da aka gyara polymer.
Lokacin aikawa: Agusta-06-2025