stability
PVC cob Softening taw tes yog tsawg tsawg, hais txog 75-80 Shan, embrittlement kub yog qis dua -50, feem ntau cov khoom long-term siv kub yuav tsum tsis pub tshaj 55 Shan, mis tshwj xeeb muaj peev xwm mus txog 90 Shan. Yog hais tias lub PVC cob yog dawb huv lub taub hau-poj niam txiv interface ntshai linear qauv, nrog tsis muaj ceg thiab unsaturated qhov tseem ceeb, txawm hais tias tus C CL daim ntawv cog lus yuav ua tau kuj me me, lub stability ntawm polyvinyl tshuaj dawb cob yuav tsum siab kuj. Tab sis txawm ib tug heev lim polyvinyl tshuaj dawb cob, uas tau ntev lawm Shan lawm 100 los yog ultraviolet hluav taws xob, tau raug escaping hydrogen chloride. Lub xub ntiag ntawm ib tug ntse pab pawg neeg los yog ib tug tsis ruaj tsis khov qauv nyob rau hauv nws cov molecular qauv yog piav. Lub ntev lub sij hawm, qhov ntau degradation, lub siab dua qhov kub thiab txias, tus ceev cov degradation tus nqi, nyob rau hauv cov pa los yog huab cua muaj yog ib tug poob rau hauv cov tshuaj sai. [6]
Hluav taws xob cov zog
Polyvinyl tshuaj dawb yog ib tug ncov qaumteb qabteb polymer, cov dej thiab lwm yam conductive khoom affinity, li ntawd, cov kuj yog me dua cov Non-polar Polyolefin, tab sis tseem muaj ib tug ntau dua volume ntawm hluav taws xob yin thiab neej puas voltage. Lub ncov qaumteb qabteb pab pawg neeg ntawm polyvinyl tshuaj dawb nrog ncaj qha mus rau lub ntsiab saw, nyob rau hauv lub khob kub, lub dipole saw ya yog txwv los ntawm lub ntsiab saw atom ntawm lub frozen qauv, li ntawd, nws tsis tsiv, ces nws tsis ua tus dipole-polarization nyhuv, thiab yuav siv tau raws li high school zaus insulating cov ntaub ntawv uas nyob rau ntawm lub chav tsev kub. Cov hluav taws xob rwb thaiv tsev ntawm lub ncua kev kawm ntawv cob yog 10-100 lub sij hawm siab tshaj hais tias ntawm lub float cob thaum lub hlau yog insulated. Lub xub ntiag ntawm cov tshuaj ions ua los ntawm degradation thiaj li hluav taws xob insulating cov cuab yeej.