PPR kav dej tiv taus hluav taws li cas?

Cov kav dej PPR paub txog ntau yam khoom muaj txiaj ntsig, tab sis nws yog ib qho tseem ceeb kom nkag siab txog lawv tus cwj pwm hauv qhov xwm txheej hluav taws kub. Thaum PPR cov kav dej tsis yog qhov hluav taws kub-resistant, lawv muaj qee yam ntxwv ntsig txog kev nyab xeeb hluav taws:

**1. Combustion Properties **:
- PPR, zoo li feem ntau cov polymers, yog combustible. Yog tias raug hluav taws xob ncaj qha lossis kub siab tshaj lawv qhov chaw melting, PPR kav yuav hlawv. Txawm li cas los xij, lawv tsis tuaj yeem ntes hluav taws ntawm qhov kub thiab txias, muab qee qhov kev tiv thaiv nyob rau hauv cov xwm txheej raug.

**2. Melting Point ***:
- PPR cov kav dej muaj qhov chaw melting nyob ib ncig ntawm 160 degree (320 degree F). Qhov no txhais tau hais tias nyob rau hauv ib puag ncig qhov kub siab tshaj qhov taw tes no, cov kav dej yuav pib deform thiab thaum kawg yaj. Cov cuab yeej no yog qhov tseem ceeb rau kev txiav txim siab hauv cov ntawv thov uas yuav tsum tau ua kom muaj cua sov siab.

** 3. Haus luam yeeb tiam**:
- Nyob rau hauv qhov xwm txheej kub hnyiab, cov kav dej PPR tuaj yeem tso pa tawm. Qhov muaj pes tsawg leeg ntawm cov pa luam yeeb yuav nyob ntawm qhov kub kub thiab cov khoom ntxiv hauv cov khoom siv PPR.

** 4. Flame Spread **:
- PPR tsis cuam tshuam rau nplaim taws. Thaum cov nplaim hluav taws raug tshem tawm, cov kav dej PPR feem ntau tso tseg, tsis zoo li qee cov ntaub ntawv uas yuav txuas ntxiv hlawv thiab ua rau hluav taws tawm.

**5. Fire Safety Standards thiab Additives**:
- IFAN's PPR kav yog tsim raws li cov qauv kev lag luam. Rau kev txhim kho hluav taws kub, cov khoom siv ntxiv tuaj yeem muab tso rau hauv cov khoom siv PPR. Cov additives no tuaj yeem txhim kho cov khoom muaj peev xwm tiv taus qhov kub thiab txias thiab txo cov pa luam yeeb.

**6. Installation Considerations **:
- Hauv thaj chaw uas muaj kev nyab xeeb hluav taws kub ntxhov, kev ntsuas tiv thaiv ntxiv, xws li siv cov khoom siv hluav taws kub ua ke nrog PPR kav, lossis txhim kho lawv kom deb ntawm qhov chaw hluav taws kub, raug pom zoo.

Hauv cov ntsiab lus, thaum PPR cov kav dej tsis yog qhov hluav taws kub-resistant, lawv muaj qee yam khoom uas ua rau muaj kev nyab xeeb hluav taws. Kev nkag siab txog cov khoom no thiab suav nrog cov kev ntsuas kev nyab xeeb thiab cov ntaub ntawv tsim nyog tuaj yeem pab txo qis kev pheej hmoo hauv ib puag ncig hluav taws kub.