Cov txheej txheem ntawm expandable PS yog muab faib ua ob kauj ruam. Thawj kauj ruam yog ua ntej foaming lossis yooj yim foaming, teeb tsa qhov ntom ntom ntawm cov khoom kawg. Hauv cov txheej txheem no, cov khoom siv polymer uas muaj tus neeg sawv cev foaming soften nyob rau hauv cua sov, thiab tus neeg sawv cev foaming volatilizes. Yog li ntawd, muaj ntau npuas nyob rau hauv txhua lub hlaws. Tus naj npawb ntawm cov npuas (qhov kawg ntom) yog tswj los ntawm cov cua sov thiab lub sijhawm cua sov. Nyob rau hauv cov txheej txheem no, cov hlaws dai yuav tsum nyob twj ywm dispersed thiab dawb ntws. Hauv kev tsim khoom, cov txheej txheem foaming yog nqa tawm los ntawm kev tso cov polystyrene expandable ncaj qha rau hauv chav. Feem ntau, cov tshuaj tiv thaiv yog ua tiav los ntawm kev sib xyaw ua ke ntawm cov hlaws dai thiab chav hauv lub agitator. Cov khoom siv tshuaj tiv thaiv (xws li Rodman ua ntej foaming tshuab) yog ua kom lub siab sab nraud qhib thiab ua rau cov hlaws foamed ntws los ntawm sab saum toj. Qee lub tuam txhab siv cov khoom siv hluav taws xob los xyuas kom muaj lub sijhawm nyob ruaj khov dua lossis thaum xav tau kub siab dua rau qee qhov tsim tau DPS. Tom qab foaming, cov hlaws yuav tsum tau kho kom cov huab cua maj mam sib xyaw rau hauv lub cell
Cim npe nrov: eps hlaws nthuav dav polystyrene, Tuam Tshoj, tuam ntxhab, lwm tus muag khoom, Hoobkas, nqe, lub tshuab nqus tsev, kev muag khoom