Foam concentrate yog ib yam khoom tseem ceeb hauv kev tua hluav taws thiab yog siv los tua hluav taws los ntawm kev ua pa rau lawv thiab depriving lawv ntawm oxygen. Nws yog ib qho tshuaj sib tov uas tsim los ua npuas dej thaum sib xyaw nrog dej, uas txhim kho lub zog tua hluav taws xob. Foam concentrate yog siv los tua hluav taws hauv ntau qhov chaw, suav nrog tsev, tsev lag luam, chaw tsim khoom, thiab tsheb.
Cov muaj pes tsawg leeg ntawm foam concentrate nyob ntawm seb hom hluav taws kub nws yog tsim los tua. Cov npuas dej sib txawv yog tsim los rau cov chav sib txawv ntawm cov hluav taws kub, xws li Class A (ntoo, ntawv, ntaub), Class B (flammable kua), thiab Class C (hluav taws xob hluav taws xob). Feem ntau, ua npuas ncauj concentrate muaj qhov sib xyaw ntawm surfactants, hydrocarbon cov kuab tshuaj, thiab cov viscosity-tswj cov neeg ua haujlwm, uas tau muab sib xyaw ua ke los tsim cov khoom lag luam zoo ib yam.
Surfactants yog cov khoom xyaw nquag hauv ua npuas ncauj thiab muaj lub luag haujlwm tsim ua npuas ncauj thaum cov concentrate yog tov nrog dej. Cov surfactants no txo qhov nro ntawm dej, tso cua kom nkag mus thiab tsim ua npuas dej. Ntxiv rau surfactants, ua npuas ncauj concentrate kuj tseem muaj cov kuab tshuaj hydrocarbon, uas tuaj yeem pab yaj thiab tua cov kua roj.
Cov viscosity-tswj cov neeg ua haujlwm tau ntxiv rau cov npuas dej kom ntseeg tau tias cov npuas dej tsis tawg sai heev. Cov neeg ua haujlwm no pab kom ruaj khov ntawm cov npuas dej thiab tswj nws cov tuab kom nws tuaj yeem npog qhov hluav taws kub thiab ua rau nws nqus tau tag nrho.
Ntxiv nrog rau cov khoom xyaw tseem ceeb no, cov tshuaj ua npuas ncauj kuj tseem muaj cov tshuaj ntxiv xws li corrosion inhibitors, antifreeze agents, thiab colorants. Cov additives no pab txhim kho kev ua haujlwm ntawm cov npuas dej, ua kom nws cov kav ntev, thiab pab txhawm rau txheeb xyuas qhov chaw uas tau npog nrog npuas dej.
Zuag qhia tag nrho, ua npuas ncauj concentrate yog ib qho tseem ceeb ntawm cov khoom uas ua lub luag haujlwm tseem ceeb hauv kev tua hluav taws thiab cawm neeg txoj sia. Los ntawm kev nkag siab txog qhov muaj pes tsawg leeg thiab cov khoom ntawm foam concentrate, cov neeg tua hluav taws tuaj yeem txiav txim siab paub ntau ntxiv txog hom ua npuas ncauj siv rau hauv cov xwm txheej sib txawv, ua rau muaj txiaj ntsig zoo dua thiab muaj kev nyab xeeb hauv zej zog.
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