Menene foda na latex wanda za'a iya sakewa?

Mataki na farko a samar da redispersible polymer foda ne don samar da wani polymer watsawa, kuma aka sani da emulsion ko latex. A cikin wannan tsari, monomers na ruwa-emulsified (wanda aka daidaita ta hanyar emulsifiers ko macromolecular colloid masu kariya) suna amsawa tare da masu farawa don fara emulsion polymerization. Ta hanyar wannan dauki, monomers suna da alaƙa don samar da kwayoyin dogon sarkar (macromolecules), Wato polymers. A lokacin wannan dauki, monomer emulsion droplets canza zuwa polymer "m" barbashi. A irin wannan polymer emulsions, da stabilizers a kan barbashi saman dole ne su hana latex daga kowace hanya coalescing da haka destabilizing. Daga nan sai a samar da wannan cakuda domin bushewar feshi ta hanyar saka wasu abubuwan da suka hada da kariya daban-daban, sannan kuma kara da sinadarin colloid na kariya da kuma maganin caking yana ba da damar polymer ya samar da foda mai kyauta wanda za a iya sake tarwatsewa a cikin ruwa bayan bushewa.

Ana rarraba foda na latex wanda za'a iya rarrabawa a cikin busassun busassun busassun turmi. Bayan an haxa turmi da ruwa, ana sake tarwatsa foda na polymer a cikin slurry da aka haɗa da sabo kuma a sake yin emulsified; saboda hydration na siminti, ƙashin ƙura da / ko sha na tushe na tushe, ƙananan pores na ciki suna da kyauta Ci gaba da amfani da ruwa yana sa ƙwayoyin latex su bushe don samar da fim mai ci gaba da ruwa a cikin ruwa. Wannan fim ɗin mai ci gaba yana samuwa ta hanyar haɗuwa da barbashi guda ɗaya da aka tarwatsa a cikin emulsion zuwa jiki mai kama. Domin ba da damar foda mai iya tarwatsawa ta samar da fim a cikin turmi mai tauri, dole ne a tabbatar da cewa mafi ƙarancin zafin jiki na yin fim ya yi ƙasa da zafin warkewar turmi da aka gyara.

Siffar barbashi na foda na polymer da za a iya tarwatsawa da abubuwan ƙirƙirar fim ɗin sa bayan sakewa suna ba da damar samun sakamako masu zuwa akan aikin turmi a cikin yanayin sabo da taurin kai:

1. Aiki a cikin sabon turmi

◆ The "lubricating sakamako" na barbashi sa turmi cakuda da kyau fluidity, don samun mafi alhẽri yi yi.

◆ Tasirin da ke haifar da iska yana sa turmi ya zama mai matsewa, yana sauƙaƙa ƙwanƙwasa.

◆ Ƙara nau'ikan nau'ikan foda na latex wanda za'a iya sakewa zai iya samun gyare-gyaren turmi tare da mafi kyawun filastik ko fiye da danko.

2. Aiki a cikin turmi mai tauri

◆ Fim ɗin latex na iya gadar ɓarnawar raguwa a madaidaicin turmi kuma ya warkar da tsagewar.

◆ Inganta iyawar turmi.

◆ Inganta ƙarfin haɗin gwiwa na turmi: kasancewar yankuna masu sassaucin ra'ayi da yawa na polymer suna inganta sassauci da elasticity na turmi,

Yana ba da haɗin kai da ɗabi'a mai ƙarfi don ƙaƙƙarfan kwarangwal. Lokacin da aka yi amfani da karfi, saboda ingantacciyar sassauci da elasticity

Ana jinkirin Microcracks har sai an kai matsananciyar damuwa.

◆ Yankunan polymer ɗin da aka haɗa su kuma suna hana haɗuwar microcracks zuwa shiga fasa. Sabili da haka, foda na polymer wanda za'a iya tarwatsawa yana inganta haɓakar rashin ƙarfi da rashin ƙarfi na kayan aiki.

Wajibi ne a ƙara redispersible latex foda zuwa bushe siminti turmi, domin redispersible latex foda yafi yana da wadannan shida abũbuwan amfãni, kuma wadannan shi ne gabatarwar a gare ku.

1. Inganta ƙarfin haɗin gwiwa da haɗin kai

Redispersible latex foda yana taka muhimmiyar rawa wajen inganta ƙarfin haɗin gwiwa da haɗin kai na kayan. Saboda shigar da ƙwayoyin polymer a cikin pores da capillaries na matrix siminti, ana samun haɗin kai mai kyau bayan hydration tare da ciminti. Gudun polymer kanta yana da kyawawan kaddarorin. Yana da matukar tasiri wajen inganta mannen kayan turmi na siminti zuwa abubuwan da ake amfani da su, musamman rashin mannewa na inorganic binders kamar siminti zuwa abubuwan da ake amfani da su kamar itace, fiber, PVC, da EPS.

2. Inganta daskarewa-narke kwanciyar hankali da kuma hana fashewar kayan yadda ya kamata

Redispersible latex foda, da robobi na thermoplastic guduro zai iya shawo kan lalacewar da zafi fadadawa da ƙulla siminti turmi ya haifar da bambancin zafin jiki. Cin nasara da halayen babban bushewar bushewa da sauƙi mai sauƙi na simintin siminti, zai iya sa kayan aiki su zama masu sassaucin ra'ayi, don haka inganta kwanciyar hankali na dogon lokaci.

3. Inganta lankwasawa da juriya

A cikin kwarangwal ɗin da aka kafa bayan turmin siminti ya cika ruwa, membrane na polymer yana da ƙarfi kuma yana da ƙarfi, kuma yana aiki azaman haɗin gwiwa mai motsi tsakanin ɓangarorin simintin siminti, wanda zai iya jure babban nakasar lodi kuma ya rage damuwa. Ƙara juriya da lankwasawa.

4. Inganta juriya mai tasiri

Redispersible latex foda ne mai thermoplastic guduro. Fim ɗin mai laushi wanda aka rufe a saman ƙwayoyin turmi zai iya shawo kan tasirin ƙarfin waje da shakatawa ba tare da karya ba, don haka inganta tasirin tasirin turmi.

5. Inganta hydrophobicity kuma rage sha ruwa

Ƙara koko redispersible polymer foda zai iya inganta microstructure na siminti turmi. Polymer ɗinsa yana samar da hanyar sadarwa mara jujjuyawa yayin aikin siminti hydration, yana rufe capillary a cikin gel siminti, yana toshe shigar ruwa, kuma yana haɓaka rashin ƙarfi.

6. Inganta juriya da karko

Ƙara redispersible latex foda zai iya ƙara m tsakanin siminti turmi barbashi da polymer film. Haɓaka ƙarfin haɗin gwiwa daidai yake yana inganta ƙarfin turmi don jure damuwa mai ƙarfi, yana rage yawan lalacewa, inganta juriyar lalacewa, kuma yana tsawaita rayuwar turmi.