Extruded polystyrene (XPS) board yog kaw- cell honeycomb qauv rigid foam yas board ua los ntawm polystyrene resin thiab additives los ntawm ib tug extrusion txheej txheem. Nws tau suav nrog hauv qhov thib ob tsab ntawm *Architectural Terminology* nyob rau hauv 2014. Nws nto yog ntom, tsis muaj voids ntawm lub hlwb, ua rau ib tug thermal conductivity tsawg li 0.028 W / (m·K), compressive zog ntawm 150-500 kPa, thiab ib tug volumetric dej nqus tus nqi ntawm tsawg tshaj li 1%. Thaum lub sij hawm tsim khoom, cov khoom molten yog extruded nyob rau hauv qhov kub thiab txias, foamed nyob rau hauv pwm, thiab ces txiav thiab txias los tsim ib tug ruaj khov qauv.
Cov khoom siv no yog siv dav hauv kev tsim cov phab ntsa rwb thaiv tsev, txias cia, tshav dav hlau khiav, thiab txoj kev loj ya raws, tuav ntau tshaj 80% ntawm nws cov kev ua tau zoo tshaj 50 xyoo. Kev lag luam thoob ntiaj teb loj tau mus txog 40 billion yuan hauv 2023, nrog cov tuam txhab Suav tsis tu ncua nqis peev hauv kev hloov kho thev naus laus zis thiab cov txheej txheem ua phooj ywg ib puag ncig. Chongqing Juyuan's reinforced modified foamed cement insulation XPS board tau dhau los ntawm Ministry of Industry thiab Information Technology cov ntawv pov thawj ntsuab tsim khoom thiab tau koom nrog hauv kev tsim cov qauv kev lag luam. Kev lag luam cov cai ntxiv dag zog rau kev saib xyuas zoo thiab cov qauv kev tiv thaiv ib puag ncig, txhawb kev tsim cov khoom ntawm kev siv hluav taws xob tsawg.