Pali mitundu yosiyanasiyana ya zowonjezera za PVC (polyvinyl chloride), zomwe zitha kugawidwa m'magulu otsatirawa kutengera ntchito zawo, ndi zosakaniza zomwe zimagwiritsidwa ntchito komanso zomwe zimagwiritsidwa ntchito:
1. Chokhazikitsa kutentha
Ntchito: Kuletsa kutuluka kwa HCl chifukwa cha kuwonongeka kwa kutentha panthawi yokonza kapena kugwiritsa ntchito PVC.
Mitundu yodziwika bwino:
Mchere wa lead (monga trisodium lead sulfate): Mtengo wotsika koma poizoni wambiri, pang'onopang'ono umatha.
Calcium zinc stabilizer: yoteteza chilengedwe, yogwiritsidwa ntchito popangira chakudya ndi zipangizo zachipatala.
Ma organic tin compounds (monga dibutyltin) ali ndi mawonekedwe abwino ndipo ndi oyenera kugwiritsidwa ntchito pazida zamankhwala.
Rare earth stabilizer: njira yatsopano yosawononga chilengedwe.
2. Zopangira pulasitiki
Ntchito: Wonjezerani kusinthasintha ndi kuchepetsa kutentha kwa kusintha kwa galasi.
Mitundu yodziwika bwino:
Ma Phthalates (monga DOP, DBP): Onse, poizoni wochepa pang'ono (monga DEHP).
Njira zina zosawononga chilengedwe: Citrate esters (ATBC), epoxidized soybean oil (ESO), polyester plasticizers.
3. Mafuta odzola
Ntchito: Kuchepetsa kukangana kwa makina ndikuwongolera kusinthasintha.
Gulu:
Mafuta odzola amkati (monga stearic acid): amachepetsa kukangana kwa mamolekyulu a PVC.
Mafuta odzola akunja (monga parafini): amachepetsa kukangana pakati pa PVC ndi zipangizo.
4. Chosintha mphamvu
Ntchito: Kulimbitsa kukana kukhudzidwa.
Mitundu yodziwika bwino:
CPE (Polyethylene Yokhala ndi Chlorin): Yotsika mtengo kwambiri.
MBS (methyl methacrylate butadiene styrene copolymer): yoyenera zinthu zowonekera bwino.
ACR (acrylic ester): Imagwira ntchito bwino kwambiri.
5. Zipangizo zothandizira kukonza
Ntchito: Kulimbitsa mphamvu yosungunuka komanso kuyenda bwino.
Mitundu yodziwika bwino: ACR (monga Paraloid series), EVA (ethylene vinyl acetate copolymer).
6. Zoletsa moto
Ntchito: Zimaletsa kuyaka, zomwe zimagwiritsidwa ntchito popanga zipangizo zomangira, mawaya ndi zingwe.
Mtundu:
Zinthu zosapangidwa ndi organic: aluminiyamu hydroxide, magnesium hydroxide (yoteteza chilengedwe koma yokhala ndi zowonjezera zambiri).
Mankhwala achilengedwe: Mankhwala a bromine (monga decabromodiphenyl ether, ocheperako pang'ono), mankhwala a phosphorous (monga phosphate esters).
7. Chokhazikitsa kuwala
Ntchito: Anti UV ukalamba, yogwiritsidwa ntchito pazinthu zakunja.
Mitundu yodziwika bwino:
Zoyamwa UV (monga benzotriazoles).
Choletsa kuwala kwa amine chotchinga (HALS).
8. Zodzaza
Ntchito: Kuchepetsa ndalama ndikuwongolera magwiridwe antchito.
Zitsanzo: Calcium carbonate (calcium yopepuka/calcium yolemera), ufa wa talc, ndi wollastonite.
9. Zopaka utoto
Mtundu:
Utoto wachilengedwe: wamitundu yowala.
Utoto wosapangidwa ndi zinthu zachilengedwe: kukana nyengo.
Bontecn Group China imadziwika bwino popanga zowonjezera za PVC, Pakadali pano, kampaniyo ili ndi antchito 5 akuluakulu a R & D, ogwira ntchito apakati a R & D oposa 20, komanso magulu ogwirizana oposa 20. Tsopano kampaniyo ndi mabizinesi odziwika bwino akunja akupanga chinthu chatsopano pamodzi, chinthucho chimatha kuthetsa mavuto achikhalidwe a zosakaniza zapulasitiki komanso mavuto okwera mtengo, ndipo chapeza zotsatira zabwino. Ndi ukadaulo wapamwamba komanso njira zabwino zodziwira, tikupitiliza kufufuza, kuyang'ana kwambiri pa kafukufuku ndi chitukuko, komanso kugwirizana ndi mabungwe ofufuza asayansi chaka chonse kuti tipitirize kupanga zinthu zatsopano ndi njira zatsopano.
Nthawi yotumizira: Okutobala-13-2025
