Cov lus qhia ntawm cov kav dej

1.Radiation tiv thaiv xim

Txheej txheej ntawm cov yeeb nkab nrog tshwj xeeb hluav taws xob tiv thaiv xim tuaj yeem tiv thaiv PPR cov yeeb nkab dej zoo.

2. Lub teeb aluminium ntawv ci nplaum

Lub teeb aluminium foil daim kab xev tuaj yeem siv los paste, zoo viscosity, muaj zog adhesion, tiv thaiv kev laus.

3. Tsaus txheej tiv thaiv

PPR hlab yog nquag mus rau kev laus thiab degradation vim ultraviolet irradiation mus sij hawm ntev. Thaum ntsia sab nraum zoov lossis nyob rau hauv tshav ntuj ncaj qha, cov txheej tiv thaiv tsaus yuav tsum tau qhwv.

4. Tsaus faus

PPR yeeb nkab zais kev ua, - nyob rau hauv ib txwm muaj xwm txheej, cov kav dej tuaj yeem muab zais ua. PPR yeeb nkab muaj zoo corrosion kuj, faus yuav tsis corroded, tsis tsuas yog tshav ntuj, tab sis kuj nyob rau hauv lub caij ntuj no los tiv thaiv freezing.