PPR (Polypropylene Random Copolymer) cov kav dej feem ntau yog siv rau cov dej kub thiab dej txias hauv cov tsev nyob thiab cov tsev lag luam. PPR cov kav dej muaj cov thermal conductivity tsawg, uas txhais tau hais tias lawv zoo khaws cov cua sov, tab sis lawv kuj tuaj yeem ua rau kub poob yog tias tsis zoo insulated.
Seb puas los yog tsis PPR kav yuav tsum tau rwb thaiv tsev nyob ntawm tej daim ntawv thov thiab tej yam kev mob uas lawv siv. Feem ntau, yog tias cov kav dej PPR tau raug siv los thauj cov dej kub, cov rwb thaiv tsev tau pom zoo kom tiv thaiv kom tsis txhob muaj cua sov thiab ua kom lub zog ua haujlwm. Rwb thaiv tsev kuj tseem tuaj yeem pab txo qis kev pheej hmoo ntawm condensation tsim rau sab nraud ntawm cov kav dej, uas tuaj yeem ua rau muaj kev puas tsuaj los yog pwm loj hlob.
Yog tias cov kav dej PPR tau siv rau kev faib dej txias, kev rwb thaiv tsev yuav tsis tsim nyog, tab sis nws tseem tuaj yeem muab qee yam txiaj ntsig. Insulating cov kav dej txias tuaj yeem pab tiv thaiv kom tsis txhob muaj qhov sib txawv ntawm cov kav dej sab nraud, uas tuaj yeem yog qhov tseem ceeb tshwj xeeb hauv cov chaw ntub dej.