I-PVC yaseChina ethekelisa eNdiya
ElaseShayinaUkuthunyelwa kwe-PVCeNdiya,
Ngo-2021, ukuthunyelwa kwe-PVC yaseChina kwafinyelela inani eliphakeme ngokomlando lamathani ayizigidi ezingu-1.7538, eliphakeme kakhulu kunamathani ayizigidi ezingu-1.0889 ngo-2016. Kusukela ngekota yesine ka-2020, inani elikhulu kunawo wonke emhlabeni.Isithekelisi se-PVC, e-United States, iye yabhekana ne-force majeure yokunciphisa ukukhiqizwa, kanye nenani elikhulu kunawo wonke emhlabeniUmkhiqizi we-PVC, i-China, ingenise isikhathi esihle kakhulu sokuthumela ngaphandle.Kuhlanganiswe negagasi elibandayo loMkhosi Wasentwasahlobo ngo-2021, igebe le-EXPORT lase-United States lasuka engxenyeni yesine ka-2020 laya engxenyeni yesithathu ka-2021.
Njengomthengisi omkhulu kunawo wonke emhlabeni - i-India, minyaka yonkeukungeniswa kwePVCidinga amathani angaphezu kwezigidi ezingu-1.5, futhi eminyakeni yamuva nje, ukuthuthuka komnotho waseNdiya okusheshayo, isidingo sokungenisa impahla kwamanye amazwe siyakhula.Ethintwe amandla amakhulu e-United States kanye nokwehliswa kokuthunyelwa kwempahla kwamanye amazwe, Ithuba lokuthi i-China ithumele ngaphandleI-PVC eya eNdiyaivula.Kusukela ngoMashi kuya ku-Ephreli 2021, amakhasimende aseNdiya akhathazekile ngokushoda kokuhlinzekwa komhlaba wonke kanye nentengo ekhuphukayo, ngakho-ke inani elikhulu lemikhiqizo ye-PVC ingenisiwe, njengoba kungabonakala esithombeni esilandelayo.Kodwa-ke, ngo-2022, intengo yemikhiqizo yaseShayina iphansi kwenani lomhlaba, futhi umsebenzi wokulwa nokulahlwa kwe-PVC ovela e-China uphelelwa yisikhathi ngoFebhuwari.Ngenzuzo yentengo, i-PVC yaseShayina ithatha ngokushesha imakethe yaseNdiya.
Kunobubanzi obukhulu bokusebenzisana phakathi kweShayina, umkhiqizi omkhulu kunawo wonke emhlabeni, kanye neNdiya, okuyizwe elithenga kwamanye amazwe elikhulu kunawo wonke emhlabeni;Ngaphandle kohwebo lwangaphambilini lokulwa nokulahlwa, ukuthunyelwa kwe-PVC yase-China kushintshile kusukela enzuzweni yegebe lokuhlinzeka lomhlaba wonke kwaba yinhlanganisela yezinzuzo zamanani omhlaba.Ngakolunye uhlangothi, imakethe yasekhaya yaseShayina inesidingo esiphuthumayo sokuthunyelwa kwamanye amazwe ukuze kukhululwe ingcindezi yokuhlinzekwa kwasekhaya esikhathini esifushane.Ngakolunye uhlangothi, amanye amabhizinisi aphendukela ekuthengisweni kwe-PVC phesheya ukuze athuthukise olwawo uhlelo lokuhweba.
ukungeniswa kwePVC, Ukuthunyelwa kwe-PVC, Isithekelisi se-PVC, PVC ongenisa ngaphandle, Umkhiqizi we-PVC, I-PVC eya eNdiya,
I-PVC isifinyezo se-polyvinyl chloride.I-resin yinto evame ukusetshenziswa ekukhiqizeni amapulasitiki namarabha.I-PVC resin iyimpushana emhlophe evame ukusetshenziselwa ukukhiqiza i-thermoplastics.Yimpahla yokwenziwa esetshenziswa kabanzi emhlabeni namuhla.I-Polyvinyl chloride resin inezici ezivelele njengokuchichima kwezinto zokusetshenziswa, ubuchwepheshe bokukhiqiza obuvuthiwe, intengo ephansi, kanye nenhlobonhlobo yokusetshenziswa.Kulula ukucubungula futhi ingacutshungulwa ngokubumba, i-laminating, ukubunjwa komjovo, i-extrusion, i-calendering, i-blow molding nezinye izindlela.Ngezakhiwo ezinhle zomzimba namakhemikhali, isetshenziswa kabanzi embonini, kwezokwakha, ezolimo, empilweni yansuku zonke, ekupakishayo, ugesi, izinsiza zomphakathi, nakweminye imikhakha.Ama-resin e-PVC ngokuvamile anokumelana namakhemikhali aphezulu.Inamandla kakhulu futhi imelana namanzi nokuhuzuka.I-Polyvinyl chloride resin (PVC) ingacutshungulwa ibe yimikhiqizo ehlukahlukene yepulasitiki.I-PVC iyipulasitiki engasindi, engabizi, futhi enobungani bemvelo.I-Pvc Resin ingasetshenziswa kumapayipi, amafreyimu amafasitela, amapayipi, izikhumba, izintambo zocingo, izicathulo kanye neminye imikhiqizo ethambile evamile, amaphrofayili, okokufakwayo, amaphaneli, umjovo, ukubumba, izimbadada, ishubhu eliqinile nezinto zokuhlobisa, amabhodlela, amashidi, ikhalenda, umjovo oqinile kanye nokubunjwa, njll nezinye izingxenye.
Izici
I-PVC ingenye yezinhlaka ze-thermoplastic ezisetshenziswa kakhulu.Ingasetshenziselwa ukwenza imikhiqizo enobulukhuni obuphezulu namandla, njengamapayipi nokufakwa, iminyango enephrofayili, amafasitela namashidi okupakisha.Ingakwazi futhi ukwenza imikhiqizo ethambile, efana namafilimu, amashidi, izintambo zikagesi nezintambo, amabhodi aphansi kanye nesikhumba sokwenziwa, ngokwengeza ama-plasticizers.
Amapharamitha
| Amabanga | QS-650 | I-S-700 | I-S-800 | S-1000 | QS-800F | QS-1000F | I-QS-1050P | |
| Idigri ye-polymerization emaphakathi | 600-700 | 650-750 | 750-850 | 970-1070 | 600-700 | 950-1050 | 1000-1100 | |
| Ukuminyana okusobala, g/ml | 0.53-0.60 | 0.52-0.62 | 0.53-0.61 | 0.48-0.58 | 0.53-0.60 | ≥0.49 | 0.51-0.57 | |
| Okuqukethwe kwe-Volatiles (amanzi afakiwe), %, ≤ | 0.4 | 0.30 | 0.20 | 0.30 | 0.40 | 0.3 | 0.3 | |
| Ukumuncwa kwe-Plasticizer kwe-resin engu-100g, g, ≥ | 15 | 14 | 16 | 20 | 15 | 24 | 21 | |
| Insalela ye-VCM, mg/kg ≤ | 5 | 5 | 3 | 5 | 5 | 5 | 5 | |
| Ukuhlolwa % | 0.025 mm inezikhala% ≤ | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| 0.063m anezikhala% ≥ | 95 | 95 | 95 | 95 | 95 | 95 | 95 | |
| Inombolo yeso lenhlanzi, No./400cm2, ≤ | 30 | 30 | 20 | 20 | 30 | 20 | 20 | |
| Inombolo yezinhlayiya zokungcola, Cha., ≤ | 20 | 20 | 16 | 16 | 20 | 16 | 16 | |
| Ubumhlophe (160ºC, imizuzu engu-10 kamuva), %, ≥ | 78 | 75 | 75 | 78 | 78 | 80 | 80 | |
| Izinhlelo zokusebenza | Izinto Zokubumba Zomjovo, Izinto Zamapayipi, Izinto Zekhalenda, Amaphrofayli Anegwebu Aqinile, Iphrofayela Eqinile Yeshidi Lokwakha I-Extrusion | Ishidi eliqinile uhhafu, Amapuleti, Izinto Zaphansi, I-Lining Epidural, Izingxenye Zamadivayisi Kagesi, Izingxenye Zezimoto | Ifilimu esobala, ukupakishwa, amakhadibhodi, amakhabethe nezitezi, ithoyizi, amabhodlela nezitsha | Amashidi, Izikhumba Zokwenziwa, Izinto Zamapayipi, Amaphrofayili, Izivuno, Amapayipi Okuvikela Ekhebula, Amafilimu Okupakisha | Izinto Zokunweba, Izintambo zikagesi, Izinto Zekhebula, Amafilimu Athambile namapuleti | AmaSpredishithi, Izinto Zokukhalenda, Amathuluzi Okukhalenda Amapayipi, Izinto Zokugqumisa Zezintambo Nezintambo | Amapayipi Okunisela, Amapayipi Amanzi Okuphuza, Amapayipi E-Foam-core, Amapayipi Endle, Amapayipi Ocingo, Amaphrofayili Aqinile | |
