Iyiphi impahla ye-PVC

I-PVC i-polyvinyl chloride, okuyi-polymer eyenziwe nge-vinyl chloride monomer ngaphansi kwesenzo se-peroxide, ama-azo compounds nezinye iziqalisi, noma ngaphansi kwesenzo sokukhanya nokushisa ngokuvumelana ne-radical polymerization yamahhala.I-PVC ingelinye lamapulasitiki amakhulu kunawo wonke emhlabeni jikelele, asetshenziswa kakhulu ezimbonini ezihlukahlukene.

Iyini impahla ye-PVC?I-PVC iyinto evamile kakhulu ekuphileni.Uhlobo luni lwezinto ezibonakalayo ze-PVC?Ake sibheke namuhla.[umqondo we-PVC] I-PVC empeleni iyi-polyvinyl chloride, okuyi-polymer eyenziwe nge-vinyl chloride monomer ene-peroxide, i-azo compound nezinye iziqalisi, noma ngaphansi kwesenzo sokukhanya nokushisa ngokuvumelana ne-radical polymerization yamahhala .

[Izici ze-PVC]: I-PVC iyimpushana emhlophe enesakhiwo se-amorphous, futhi izinga lokushisa lokushintsha kwengilazi lingu-77~90 ℃.Ukuguqulwa kwengilazi kuwumqondo onzima uma kuqhathaniswa.Ngempushana ye-PVC, ukuguqulwa kwengilazi ukuthi ngaphakathi kwalolu banga lokushisa, i-PVC izoshintsha isuka ekubeni impushana emhlophe iye esimweni esiyingilazi.I-PVC eyingilazi izoqala ukubola cishe ku-170 ℃.Ukungaqini kahle ekukhanyeni nasekushiseni, ukubola kalula nokukhiqiza i-hydrogen chloride.
[ukulimala kwe-PVC].Kusukela ezicini ze-PVC, singabona ukuthi i-PVC ayikwazi ukusetshenziswa yodwa.Ekusetshenzisweni okungokoqobo, ama-stabilizers kufanele afakwe ukuze kuthuthukiswe ukuzinza ekushiseni nasekukhanyeni.Kufanele sinake ngokukhethekile lapha.Ngo-2017, uhlu lwama-carcinogens olwanyatheliswa yi-ejensi yamazwe ngamazwe yocwaningo ngomdlavuza we-World Health Organization lwahlungwa kuqala ukuze lubhekiswe, futhi i-PVC yafakwa ohlwini lwezinhlobo ezintathu ze-carcinogens.Ngakho-ke, ekuphileni kwansuku zonke, zama ukungasebenzisi iziqukathi ze-PVC ukuze ubambe ukudla, ingasaphathwa amanzi ashisayo.

[ukusebenza kwe-PVC], njengenye yamapulasitiki amakhulu kunawo wonke emhlabeni jikelele, i-PVC isetshenziswa kabanzi ezintweni zokwakha, imikhiqizo yezimboni, izidingo zansuku zonke, isikhumba saphansi, amathayela aphansi, isikhumba sokwenziwa, amapayipi, izintambo nezintambo, amafilimu okupakisha, amabhodlela. , izinto zokugwedla, izinto zokuvala uphawu, ubukhulu befiber, njll.