suma:
PVC (polyvinyl chloride) yakajairika thermoplastic polymer inoshandiswa kune ese maindasitiri uye epamba zvinangwa. Lead, ichepfu inorema simbi, yave ichishandiswa muPVC yarn kwemakore akawanda, asi yakashata yayo pahutano hwevanhu uye zvakatipoteredza zvakakonzera kugadzirwa kwePVC dzimwe nzira. Muchikamu chino, tichakurukura mutsauko uripo pakati pePVC uye inotungamira-isina PVC.
Chii chinonzi Lead-Free PVC?
Lead-isina PVC imhando yePVC isina chero lead. Nekuda kwekushaikwa kwemutobvu, lead-isina PVC yakachengeteka uye inochengetedza zvakatipoteredza kupfuura yechinyakare PVC. PVC isina lead inowanzogadzirwa necalcium, zinc kana tin stabilizers pachinzvimbo chelead-based stabilizers. Aya ma stabilizer ane zvimiro zvakafanana se lead stabilizers, asi pasina zvinokanganisa hutano uye zvakatipoteredza.
Musiyano uripo pakati pePVC uye inotungamira-isina PVC
1. Muchetura
Musiyano mukuru pakati pePVC nePVC isina lead-isina kuvepo kana kusavapo kwemutobvu. Zvigadzirwa zvePVC zvinowanzove zvine lead stabilizers zvinogona kubuda kunze kwechinhu uye kukonzera kukanganisa kwezvakatipoteredza. Lead ichetura heavy metal inogona kukonzera matambudziko etsinga nekukura, kunyanya muvana. Lead-isina PVC inobvisa njodzi yekuumbwa kwe lead.
2. Kukanganisa kwezvakatipoteredza
PVC haina biodegradable uye inogona kuramba iri munharaunda kwemazana emakore. Kana yapiswa kana kuraswa zvisina kunaka, PVC inogona kuburitsa makemikari ane chepfu mumhepo nemumvura. Lead-isina PVC ine hushamwari hwakatipoteredza nekuti haina lead uye inogona kushandiswazve.
3. Hunhu
PVC uye PVC isina-lead ine zvinhu zvakafanana, asi pane zvimwe zvakasiyana. Lead stabilizers inogona kuvandudza zvivakwa zvePVC zvakaita sekugadzikana kwekupisa, mamiriro ekunze uye kugadzirisa. Zvisinei, PVC isina mutobvu inogona kuwana zvinhu zvakafanana kuburikidza nekushandiswa kwezvimwe zvigadziro zvakadai se calcium, zinc uye tin.
4. Mutengo
PVC isina lead-isina inogona kudhura kupfuura yakajairwa PVC nekuda kwekushandisa mamwe madhizaini. Nekudaro, mutsauko wemutengo hauna kukosha uye mabhenefiti ekushandisa lead-isina PVC anodarika mutengo.
Nguva yekutumira: Zvita-31-2024