PVC plastiki jɛman sababu ye mun ye?

PVC plastiki jɛman sababu ye mun ye?

Plastikiw jɛman bɛ tali kɛ cakɛda ɲɔgɔnna polimɛri molekiyɔmu cakɛda ka karilen na funteni caman na, oksidan sigida la, walima ultraviolet, infrarouge ani microorganismes ka wale kɔrɔ, o min bɛ radikaliw bɔli daminɛ.

Plastikiw jɛman min bɛ kɛ tuma caman na, o ye ninnu ye kosɛbɛ:

1. Fiɲɛ min bɛ wele ko ultraviolet

Tle bɛ yeelen min Bɔ kɛnɛma fiɲɛbɔyɔrɔ la, o ye spektrum ye min bɛ Taa ‘ɲɛ ni a janya ye 0,7-3000nm ye, o la 300-400nm ultraviolet (ultraviolet) ye polimɛri tiɲɛni sababuba ye. Wa fotonw fanga min bɛ ultraviolet (ultraviolet) hakɛ la 290-400nm, o ye 300-419kJ/E ye, o min ka bon ni sirili fanga ye min bɛ sɔrɔ kemikɛli jɛɲɔgɔnya danma dɔw la polimɛriw kɔnɔ.

2. Funteni sabatilikɛlan ka nɔ bilalen

Funteni sabatilifɛn suguya wɛrɛw bɛ nɔ wɛrɛw bila PVC yeelen sabatili la.

Ba/Cd ni organotin carboxylate faralenw (i n’a fɔ maleic anhydride ester organotin stabilizers) bɛ se ka UV sabatili hakɛ dɔ di PVC profiles ma minnu bɛ kɛ kɛnɛma, ka sɔrɔ organotin compounds minnu bɛ kisɛ la (i n’a fɔ sulfur Alcohol organic tin stabilizers) bɛ yeelen sabatili danma di. Di-kɔgɔ plɔmu sabatilikɛlan yeelen sabatili ka bon ni kɔgɔ saba sɔgɔlan sabatili ye.

3. Oksidan kɛlɛli sigida ka nɔ bila

Sisan, PVC profil dilannikɛlaw bɛ baara kɛ ni sabatilifɛn minnu ye, olu fanba ye sabatilifɛnw ye minnu bɛ kɛ ɲɔgɔn fɛ. Ka fara fɛnɲɛnamafagalanba kan min bɛ PVC tiɲɛni sabati, u bɛ tulumafɛnw fana sɔrɔ, farikolo tangalanw ani sabatili fɛɛrɛ wɛrɛw.

Oksidan kɛlɛli fɛɛrɛ bɛ se ka kɛ fenɔli sabatilifɛnw ni fositɛri sabatili ɲɔgɔn fɛ. O fɛnɲɛnamafagalanw bɛ se ka kɛ ni nɔgɔ fɛnɲɛnamaw ye minnu ɲɛ bɛ wuli nɔgɔya la, wa ka fara o kan, u bɛ se ka kɛ sababu ye ka u kulɛri caman wuli yeelen, ɔkisizɛni ani ji ka baara fɛ.