iindaba

I-PVC i-polymer eyenziwe yi-polymerization yamahhala ye-vinyl chloride monomers (VCM) kunye nabaqalisi abafana ne-peroxide kunye ne-azo compounds okanye phantsi kwesenzo sokukhanya kunye nobushushu.

I-PVC isetyenziselwa ukuba yimveliso enkulu yehlabathi yeplastiki ngokubanzi, yenye yeeplastiki ezintlanu jikelele (i-PE polyethylene, i-PP polypropylene, i-PVC ye-polyvinyl chloride, i-PS polystyrene, i-ABS) . , isikhumba somgangatho, i-tile yomgangatho, isikhumba sokwenziwa, ipayipi, ucingo kunye nekhebula, ifilimu yokupakisha, iibhotile, izinto ze-foam, izinto zokutywina, iifayili kunye nezinye iinkalo zisetyenziswa ngokubanzi.

I-PVC yafunyanwa kwangoko ngo-1835 eUnited States.I-PVC yaphuhliswa ekuqaleni kwe-1930s.Ukusukela kwi-1930s, ixesha elide, imveliso ye-PVC ithathe indawo yokuqala yokusetyenziswa kweplastiki yehlabathi.

Ngokwe-scope yesicelo esahlukileyo, i-PVC inokwahlulwa ibe: i-resin ye-PVC ngokubanzi, i-polymerization degree degree ye-PVC resin, i-PVC edibeneyo ye-resin.Ngokweendlela ze-polymerization, i-PVC inokwahlulwa ibe ziindidi ezine eziphambili: i-PVC yokumiswa, i-emulsion ye-PVC, i-PVC eninzi, isisombululo PVC.

I-Polyvinyl chloride inoncedo lwe-flame retardant (ixabiso le-flame retardant elingaphezulu kwama-40), ukuxhathisa kwikhemikhali ephezulu (ukumelana ne-hydrochloric acid edibeneyo, i-90% ye-sulfuric acid, i-60% ye-nitric acid kunye ne-20% ye-sodium hydroxide), amandla afanelekileyo omatshini kunye nokugquma kombane. .

Ukususela kwi-2016 ukuya kwi-2020, imveliso yePVC yehlabathi jikelele yayinyuka.Ngokwezibalo zeBloomberg, imveliso yePVC yaseChina yenza i-42% yemveliso yehlabathi, ngokusekelwe apho imveliso yePVC yehlabathi iqikelelwa ukuba yi-54.31 yezigidi zeetoni kwi-2020.

Kwiminyaka yakutshanje, ukusetyenziswa kweshishini lePVC liye lakhula ngokuthe ngcembe.Phantsi komqathango wokuba umthamo wemveliso yePVC yasekhaya kunye nomthamo wokungenisa elizweni awunyuki kakhulu, ukukhula kwedatha yokusetyenziswa okubonakalayo kusisiphumo sokukhulisa imfuno engqongqo emva kokuphuculwa kobudlelwane phakathi konikezelo kunye nemfuno.Ngo-2018, ukusetyenziswa okubonakalayo kwe I-ethylene kwi-atmosphere yaseTshayina yayizi-889 zezigidi zeetoni, inyuka nge-1.18 yezigidi zeetoni okanye i-6.66% xa kuthelekiswa nonyaka ophelileyo.

Inkampani yeShin-etsu Chemical

Yasekwa ngo-1926, iShin-etsu ngoku ikomkhulu eTokyo kwaye ineendawo zokuvelisa kumazwe ali-14 kwihlabathi jikelele. Lelona shishini likhulu lehlabathi lokwenziwa kwe-wafer kunye nelona shishini likhulu lehlabathi lokwenziwa kwePVC.

I-Shinetsu Chemical iphuhlise iteknoloji yayo ye-polymerization enkulu kunye nenkqubo yokuvelisa i-NONSCALE, ekhokelela kwi-PVC industry.Ngoku, e-United States, eYurophu naseJapan iimarike ezinkulu ezintathu, njengabavelisi be-PVC abakhulu behlabathi kunye nomthamo omkhulu wemveliso, ukubonelela ngokuzinzileyo okuphezulu. -izinto ezisemgangathweni kwihlabathi.

IShin-yue Chemical iya kuba nomthamo wePVC wokuvelisa malunga ne-3.44 yezigidi zeetoni ngo-2020.

umthombo: https://www.shinetsu.co.jp/cn/

2. I-Occidental Petroleum Corporation

I-Occidental Petroleum Corporation yinkampani ye-oyile kunye negesi esekelwe e-Houston kunye nenkampani yokuvelisa kunye nokusebenza e-United States, eMbindi Mpuma, naseMzantsi Melika.Inkampani isebenza ngamacandelo amathathu: i-oyile kunye negesi, i-Chemicals, i-Midstream kunye neNtengiso.

Ishishini lemichiza ikakhulu livelisa i-polyvinyl chloride (PVC) resins, i-chlorine kunye ne-sodium hydroxide (i-caustic soda) yeeplastiki, amayeza kunye neekhemikhali zokunyanga amanzi.

umthombo: https://www.oxy.com/

3.

I-Ineos Group Limited yinkampani yabucala yeekhemikhali zamazwe ngamazwe.I-Ineos ivelisa kwaye ithengisa uluhlu olubanzi lweemveliso zepetrochemical, i-Ineos ibonelela ngoluhlu olubanzi lweemveliso zePVC extrusion kunye nenaliti yokubumba kumabakala amaninzi, ukwakhiwa kwesicelo, iimoto, unyango, ukuphatha izixhobo kunye namashishini okupakisha. kwihlabathi jikelele.

I-Inovyn lishishini le-vinyl chloride resin phakathi kwe-Ineos kunye ne-Solvay.I-Inovyn iya kugxininisa kwi-asethi ye-Solvay kunye ne-Ineos kulo lonke i-vinyl chloride industry chain eYurophu - i-polyvinyl chloride (PVC), i-caustic soda kunye ne-chlorine derivatives.

umthombo: https://www.ineos.cn

4.Westlake Chemistry

IWestlake Corporation, eyasekwa ngo-1986 kwaye ikomkhulu layo likwi-Houston, eTexas, ngumenzi wezizwe ngezizwe kunye nomthengisi wepetrochemical kunye neemveliso zokwakha.

I-Westlake Chemical ifumene umenzi we-PVC waseJamani i-Vinnolit kwi-2014 kunye ne-Axiall ngo-Agasti 31, i-2016.Inkampani edibeneyo yaba ngumvelisi wesithathu omkhulu we-chlor-alkali kunye nomvelisi wesibini omkhulu we-polyvinyl chloride (PVC) eMntla Melika.

umthombo: https://www.westlake.com/

5. Mitsui Chemical

IMitsui Chemical yenye yeenkampani ezinkulu zeekhemikhali eJapan.Yasekwa kwi-1892, ikomkhulu eTokyo.Inkampani ibandakanyeka kakhulu kwizinto ezisisiseko zepetrochemical, izixhobo zokwenziwa kwefiber, iikhemikhali ezisisiseko, iireyini zokwenziwa, iikhemikhali, iimveliso ezisebenzayo, iikhemikhali ezintle, iilayisensi kunye namanye amashishini.

I-Mitsui Chemical ithengisa i-PVC resin, i-plasticizer kunye ne-PVC eguqulelwe izixhobo e-Japan nakwamanye amazwe, ihlola ngokusebenzayo iimarike ezintsha, kwaye ikhula rhoqo isikali seshishini.

umthombo: https://jp.mitsuichemicals.com/jp/index.htm