Zokhazikika za Barium Zinc PVC zamadzimadziNdi zowonjezera zapadera zomwe zimagwiritsidwa ntchito pokonza polyvinyl chloride (PVC) kuti ziwonjezere kukhazikika kwa kutentha ndi kuwala, kupewa kuwonongeka popanga ndikuwonjezera moyo wa zinthuzo. Nayi kufotokozedwa mwatsatanetsatane kwa kapangidwe kake, momwe zimagwiritsidwira ntchito, malingaliro a malamulo, ndi momwe msika umayendera:
Kapangidwe ndi Njira
Zokhazikikazi nthawi zambiri zimakhala ndi mchere wa barium (monga alkylphenol barium kapena 2-ethylhexanoate barium) ndi mchere wa zinc (monga 2-ethylhexanoate zinc), kuphatikiza ndi zinthu zina monga phosphites (monga tris(nonylphenyl) phosphite) ya chelation ndi solvents (monga mafuta amchere) kuti zifalikire. Barium imapereka chitetezo cha kutentha kwakanthawi kochepa, pomwe zinc imapereka kukhazikika kwa nthawi yayitali. Kapangidwe kamadzimadzi kamathandizira kusakaniza kofanana mu mapangidwe a PVC. Mapangidwe aposachedwa amaphatikizanso polyether silicone phosphate esters kuti awonjezere kukhuthala ndi kuwonekera bwino, kuchepetsa kuyamwa kwa madzi panthawi yozizira.
Ubwino Waukulu
Osakhala ndi Poizoni: Popanda zitsulo zolemera monga cadmium, zimagwirizana ndi miyezo yokhudzana ndi chakudya komanso yachipatala (monga, magiredi ovomerezeka ndi FDA m'njira zina).
Kugwiritsa Ntchito Bwino: Kukhazikika kwa madzi kumatsimikizira kuti zinthu zofewa za PVC (monga mafilimu, mawaya) zimafalikira mosavuta, kuchepetsa nthawi yogwiritsira ntchito komanso kugwiritsa ntchito mphamvu.
Kugwiritsa Ntchito Ndalama Moyenera: Kupikisana ndi zinthu zolimbitsa tin yachilengedwe komanso kupewa nkhawa za poizoni.
Zotsatira Zogwirizana: Akaphatikizidwa ndi zolimbitsa thupi za calcium-zinc, amathetsa mavuto a "kutulutsa" PVC yolimba mwa kulinganiza kukhuthala ndi kukhazikika kwa kutentha.
Mapulogalamu
Zogulitsa Zofewa za PVC: Amagwiritsidwa ntchito kwambiri m'mafilimu osinthasintha, zingwe, zikopa zopanga, ndi zida zamankhwala chifukwa chakuti sizimawononga poizoni komanso sizimasunga kuwala.
PVC yolimba: Mogwirizana ndizokhazikika za calcium-zinc, zimathandiza kuti zinthu zisamayende bwino m'mafilimu ndi m'ma profiles, zomwe zimathandiza kuti "zolankhulirana" zisamayende bwino (zinthu zikamasefedwa).
Mapulogalamu Apadera: Ma formula owonekera bwino kwambiri opaka ndi zinthu zosagwira UV akaphatikizidwa ndi ma antioxidants monga 2,6-di-tert-butyl-p-cresol.
Zoganizira Zokhudza Malamulo ndi Zachilengedwe
Kutsatira malamulo a REACH: Ma compound a Barium amalamulidwa motsatira REACH, ndi zoletsa pa barium yosungunuka (monga, ≤1000 ppm mu zinthu zogwiritsidwa ntchito ndi anthu). Ma liquid barium zinc stabilizers ambiri amakwaniritsa malire awa chifukwa cha kusungunuka kochepa.
Njira Zina: Zolimbitsa thupi za calcium-zinc zikuyamba kugwira ntchito chifukwa cha malamulo okhwima okhudza chilengedwe, makamaka ku Europe. Komabe, zolimbitsa thupi za barium zinc zimakondabe kugwiritsidwa ntchito pa kutentha kwambiri (monga zida zamagalimoto) komwe calcium-zinc yokha singakwanire.
Magwiridwe antchito ndi deta yaukadaulo
Kukhazikika kwa Kutentha: Mayeso a kutentha kosasunthika amasonyeza kukhazikika kwa nthawi yayitali (monga, mphindi 61.2 pa 180°C pakupanga mankhwala okhala ndi hydrotalcite co-stabilizers). Kukonza kwamphamvu (monga, kutulutsa kwa twin-screw) kumapindula ndi mphamvu zawo zopaka mafuta, zomwe zimachepetsa kuwonongeka kwa shear.
Kuwonekera: Ma formula apamwamba okhala ndi ma ester a silicone a polyether amakwaniritsa kumveka bwino kwa kuwala (≥90% transmittance), zomwe zimapangitsa kuti akhale oyenera kuyika mafilimu opaka.
Kukana Kusamuka: Zolimbitsa thupi zopangidwa bwino sizimasuntha kwambiri, zomwe ndizofunikira kwambiri pakugwiritsa ntchito monga kulongedza chakudya komwe kusuntha kwa zowonjezera kumakhala vuto.
Malangizo Othandizira
KugwirizanaPewani kugwiritsa ntchito mafuta a stearic acid mopitirira muyeso, chifukwa amatha kuyanjana ndi mchere wa zinc, zomwe zingawonjezere kuwonongeka kwa PVC.zokhazikika pamodzimonga mafuta a soya opangidwa ndi epoxidized kuti awonjezere kuyanjana.
Mlingo: Kugwiritsa ntchito kwanthawi zonse kumayambira pa 1.5–3 phr (zigawo pa zana la utomoni) mu PVC yofewa ndi 0.5–2 phr mu mitundu yolimba ikaphatikizidwa ndi zokhazikika za calcium-zinc.
Zochitika Zamsika
Zoyendetsa KukulaKufunika kwa zinthu zokhazikika zopanda poizoni ku Asia-Pacific ndi North America kukulimbikitsa zatsopano mu mitundu ya barium zinc. Mwachitsanzo, makampani aku China a PVC akugwiritsa ntchito kwambiri zinthu zokhazikika za barium zinc zamadzimadzi popanga waya/zingwe.
Mavuto: Kukwera kwa zinthu zokhazikika za calcium-zinc (zomwe zikuyembekezeredwa kuti ndi 5–7% muzinthu zopangira nsapato ndi ma phukusi) kumabweretsa mpikisano, koma barium zinc imasungabe malo ake pantchito zapamwamba.
Ma Liquid Barium Zinc PVC Stabilizers amapereka ndalama zogwirira ntchito, kukhazikika kwa kutentha, komanso kutsatira malamulo, zomwe zimapangitsa kuti zikhale zofunika kwambiri pazinthu zofewa komanso zolimba pang'ono za PVC. Ngakhale kuti kupsinjika kwa chilengedwe kumayendetsa kusintha kwa njira zina za calcium-zinc, mawonekedwe awo apadera amatsimikizira kuti akupitilizabe kukhala ofunikira m'misika yapadera. Opanga mapangidwe ayenera kulinganiza mosamala zofunikira pakugwira ntchito ndi malangizo owongolera kuti apindule kwambiri.
Nthawi yotumizira: Ogasiti-08-2025