A halin yanzu, foda na latex wanda za'a iya rarrabawa ya taka muhimmiyar rawa a matsayin ƙari na turmi gini. Ƙara foda mai sake tarwatsewa a cikin turmi na iya shirya samfuran turmi iri-iri kamar su tile m, turmi insulation, turmi mai daidaita kai, putty, turmi plaster, turmi na ado, wakili mai nuni, turmi mai gyara da kayan rufewar ruwa. Iyalin aikace-aikace da aikin aikace-aikacen ginin turmi.
Samar da fim ɗin polymer mai ci gaba yana da matukar mahimmanci ga aikin gyare-gyaren siminti na polymer. A lokacin saiti da hardening na siminti manna, da yawa cavities za a samar a ciki, wanda ya zama rauni sassa na siminti manna. Bayan an saka foda mai sake tarwatsewa, nan da nan za ta watse a cikin emulsion idan ta hadu da ruwa, kuma a taru a cikin wurin da ke da wadatar ruwa (wato a cikin rami). Yayin da manna siminti ya kafa kuma ya taurare, motsi na ƙwayoyin polymer yana ƙara ƙuntatawa, kuma tashin hankali tsakanin ruwa da iska yana tilasta musu su daidaita a hankali. Lokacin da ƙwayoyin polymer suka shiga cikin hulɗa da juna, hanyar sadarwa na ruwa ta kwashe ta cikin capillaries, kuma polymer ya samar da fim mai ci gaba a kusa da rami, yana ƙarfafa waɗannan wurare masu rauni. A wannan lokacin, fim din polymer ba zai iya taka rawar hydrophobic kawai ba, amma kuma ba zai toshe capillary ba, don haka abu yana da kyaun hydrophobicity da iska.
Turmi siminti ba tare da polymer ba yana da alaƙa da juna sosai. Akasin haka, turmi na siminti da aka gyara na polymer yana sa duka turmi ya kasance da alaƙa sosai saboda kasancewar fim ɗin polymer, don haka samun ingantattun kayan inji da juriya na yanayi. A cikin latex foda modified siminti turmi, da latex foda zai ƙara porosity na ciminti manna, amma rage porosity na dubawa tsakani yanki tsakanin ciminti manna da tara, sakamakon a cikin overall porosity na turmi kasancewa m canzawa. Bayan da latex foda aka kafa a cikin wani fim, shi zai iya mafi kyau toshe pores a cikin turmi, yin tsarin da mu'amala miƙa mulki yankin tsakanin ciminti manna da tara mafi m, da permeability juriya na latex foda modified turmi yana inganta. , kuma ana haɓaka ikon yin tsayayya da lalatawar kafofin watsa labarai masu cutarwa. Yana da tasiri mai kyau akan inganta ƙarfin turmi.
Lokacin aikawa: Fabrairu-20-2023