Izindaba
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Ungabona kanjani ukuthi ipulasitiki iyi-polypropylene?
Enye yezindlela ezilula zokwenza ukuhlola ilangabi ukusika isampula epulasitiki bese uyithungela ekhabetheni lomusi. Umbala welangabi, iphunga nezici zokusha kunganikeza inkomba yohlobo lwepulasitiki: 1. I-Polyethylene (PE) - Amaconsi, anuka njenge-candlewax; we-candlewax; 3. I-Polymethylmethacrylate (PMMA, “Perspex”) – Amabhamuza, ama-crackles, iphunga elimnandi; i-sooty flame, iphunga lama-marigolds; 6. Igwebu le-polyethylene (PE) - Amaconsi, iphunga le-candlewax -
I-Mars M Beans yethula ukupakishwa kwephepha eliyinhlanganisela ye-PLA e-biodegradable e-China.
Ngo-2022, iMars yethula ushokoledi wokuqala we-M&M opakishwe ephepheni eliyinhlanganisela eyonakalayo e-China. Yenziwe ngezinto eziwohlokayo njengephepha ne-PLA, ithatha indawo yepulasitiki ethambile yendabuko esikhathini esidlule. Ukupakishwa kudlule i-GB/T Indlela yokunquma ka-19277.1 iqinisekise ukuthi ngaphansi kwezimo zokwenziwa komquba wezimboni, ingehlisa izinga elingaphezu kuka-90% ezinyangeni eziyisi-6, futhi izoba amanzi angewona anobuthi bebhayoloji, i-carbon dioxide neminye imikhiqizo ngemuva kokuwohloka. . -
Ukuthunyelwa kwe-PVC yase-China kusalokhu kuphezulu engxenyeni yokuqala yonyaka.
Ngokwezibalo zakamuva zamasiko, ngo-June 2022, umthamo wezwe lami wokungenisa we-PVC ohlanzekile wawungamathani angu-29,900, ukwanda ngo-35.47% kusukela enyangeni edlule kanye nokunyuka konyaka ngo-23.21%; ngo-June 2022, ivolumu yokuthekelisa kwe-PVC yezwe lami emsulwa yayingamathani angama-223,500, Ukwehla kwenyanga nenyanga kwaba ngu-16%, futhi ukunyuka konyaka kwaba ngama-72.50%. Umthamo wokuthunyelwa kwempahla kwamanye amazwe uqhubekile nokugcina izinga eliphezulu, okuye kwanciphisa ukutholakala okuchichimayo emakethe yasekhaya ngokwezinga elithile. -
Iyini i-Polypropylene (PP)?
I-Polypropylene (PP) iyi-thermoplastic eqinile, eqinile, ne-crystalline. Yenziwe nge-propene (noma i-propylene) monomer. Le resin ye-hydrocarbon ewumugqa iyi-polymer elula kakhulu phakathi kwawo wonke amapulasitiki wempahla. I-PP iza njenge-homopolymer noma njenge-copolymer futhi ingakhuliswa kakhulu ngezithasiselo. Ithola ukusetshenziswa emaphaketheni, ezimotweni, ezinhle zabathengi, ezempilo, amafilimu asakazwayo, njll. I-PP isiphenduke into ekhethwayo, ikakhulukazi uma ufuna i-polymer enamandla amakhulu (isb, vs Polyamide) ezinhlelweni zobunjiniyela noma umane ufuna inzuzo yezindleko kumabhodlela okubumba (vs. PET). -
Iyini i-Polyethylene (PE)?
I-Polyethylene (PE) , eyaziwa nangokuthi i-polythene noma i-polyethene, ingenye yepulasitiki esetshenziswa kakhulu emhlabeni. Ama-polyethylenes ngokuvamile anesakhiwo somugqa futhi aziwa njengama-polymers wokwengeza. Ukusetshenziswa okuyinhloko kwalawa ma-polymer okwenziwa kusephaketheni. I-polyethelyne ivame ukusetshenziselwa ukwenza izikhwama zepulasitiki, amabhodlela, amafilimu epulasitiki, iziqukathi, nama-geomembranes. Kuyaphawuleka ukuthi amathani angaphezu kwezigidi eziyi-100 e-polyethene akhiqizwa minyaka yonke ngezinhloso zentengiso nezezimboni. -
Ukuhlaziywa kokusebenza kwemakethe yokuthekelisa ye-PVC yezwe lami engxenyeni yokuqala ka-2022.
Engxenyeni yokuqala ka-2022, imakethe yokuthekelisa ye-PVC yanda unyaka nonyaka. Ngekota yokuqala, ezithintwe ukuwohloka komnotho emhlabeni wonke kanye nalolu bhubhane, izinkampani eziningi zasekhaya ezithumela ngaphandle zibonise ukuthi isidingo samadiski angaphandle sinciphile. Kodwa-ke, kusukela ekuqaleni kukaMeyi, ngokuthuthuka kwesimo sobhubhane kanye nochungechunge lwezinyathelo ezethulwe nguhulumeni waseShayina ukukhuthaza ukusimama komnotho, izinga lokusebenza kwamabhizinisi okukhiqiza asekhaya we-PVC beliphezulu kakhulu, imakethe yokuthekelisa ye-PVC iye yafudumala. , futhi isidingo samadiski angaphandle sinyukile. Inombolo ibonisa ukuthambekela okuthile kokukhula, futhi ukusebenza okuphelele kwemakethe kuye kwaba ngcono uma kuqhathaniswa nesikhathi esidlule. -
I-PVC isetshenziselwa ini?
Ezomnotho, i-polyvinyl chloride eguquguqukayo (i-PVC, noma i-vinyl) isetshenziswa ezinhlobonhlobo zezicelo ezakhiweni nasekwakhiweni, ukunakekelwa kwezempilo, ugesi, izimoto kanye neminye imikhakha, emikhiqizweni esukela kumapayipi namasiding, izikhwama zegazi namashubhu, ukuya kucingo kanye ukufakwa kwekhebula, izingxenye zesistimu ye-windshield nokunye. . -
Umhlangano Wasekuseni kaChemdo ngoJulayi 26.
Ekuseni kwangomhla zingama-26 kuJulayi, uChemdo wabamba umhlangano weqoqo. Ekuqaleni, umphathi-jikelele waveza imibono yakhe ngesimo somnotho samanje: umnotho wezwe uphansi, yonke imboni yezohwebo zangaphandle icindezelekile, isidingo siyancipha, futhi izinga lokuhamba olwandle liyehla. Futhi ukhumbuze abasebenzi ukuthi ekupheleni kukaJulayi, kunezindaba zomuntu siqu okufanele kubhekwane nazo, ezingahle zihlelwe ngokushesha ngangokunokwenzeka. Futhi yanquma itimu yevidiyo entsha yemidiya yaleli sonto: Ukuwohloka Okukhulu Kwezohwebo Zangaphandle. Wabe esemema ozakwabo abambalwa ukuba babelane ngezindaba zakamuva, futhi ekugcineni wanxusa iminyango yezezimali nemibhalo ukuthi igcine imibhalo kahle. . -
Iphrojekthi ye-ethylene eyizigidi zamathani kanye nokucwengisiswa kwe-Hainan Refinery isizonikezwa.
Iphrojekthi ye-Hainan Refining kanye neChemical Ethylene Project kanye Nokwakhiwa Kabusha Nokunwetshwa Kwephrojekthi kutholakala e-Yangpu Economic Development Zone, ngokutshalwa kwezimali okuphelele kwama-yuan ayizigidi eziyizinkulungwane ezingama-28. Kuze kube manje, inqubekelaphambili jikelele yokwakha isifinyelele ku-98%. Ngemuva kokuthi iphrojekthi isiqediwe futhi ifakwe ekukhiqizweni, kulindeleke ukuthi iqhube ngaphezulu kwama-yuan ayizigidi eziyizinkulungwane eziyi-100 ezimbonini ezingezansi. I-Olefin Feedstock Diversification kanye ne-High-end Downstream Forum izobanjelwa e-Sanya ngoJulayi 27-28. Ngaphansi kwesimo esisha, ukuthuthukiswa kwamaphrojekthi amakhulu afana ne-PDH, nokuqhekeka kwe-ethane, inkambiso yesikhathi esizayo yobuchwepheshe obusha obufana nowoyela ongahluziwe oqondile kuma-olefin, kanye nesizukulwane esisha samalahle/methanol kuya ku-olefin. . -
I-MIT: Ama-microparticles e-Polylactic-glycolic acid copolymer enza umuthi wokugoma “wokuzithuthukisa”.
Ososayensi base-Massachusetts Institute of Technology (MIT) babika kujenali yakamuva i-Science Advances ukuthi benza umuthi wokuzithuthukisa womthamo owodwa. Ngemuva kokuthi umgomo ujovwe emzimbeni womuntu, ungakhishwa izikhathi eziningi ngaphandle kwesidingo se-booster shot. Umgomo omusha kulindeleke ukuthi usetshenziselwe ukulwa nezifo ezisukela kumvukuzane kuya ku-Covid-19. Kubikwa ukuthi lo mgomo omusha wenziwe ngezinhlayiya ze-poly(lactic-co-glycolic) (PLGA). I-PLGA iyinhlanganisela ye-polymer esebenzayo ewohlokayo, engenabo ubuthi futhi inokuhambisana okuhle kwe-biocompatibility. Igunyaziwe ukuthi isetshenziswe kuma-Implants, sutures, ukulungisa izinto, njll -
I-Yuneng Chemical Company: Ukukhiqizwa kokuqala kwezimboni kwe-polyethylene efuthwayo!
Muva nje, iyunithi ye-LLDPE ye-Polyolefin Center ye-Yuneng Chemical Company ikhiqize ngempumelelo i-DFDA-7042S, umkhiqizo we-polyethylene ofuthwayo. Kuyaqondakala ukuthi umkhiqizo we-polyethylene ofuthwayo ungumkhiqizo osuselwe ekuthuthukisweni okusheshayo kobuchwepheshe bokucubungula okwehla nomfula. Izinto ezikhethekile ze-polyethylene ezinokusebenza kokufafaza phezulu zixazulula inkinga yokusebenza kabi kombala we-polyethylene futhi ine-gloss ephezulu. Umkhiqizo ungasetshenziswa emikhakheni yokuhlobisa nokuvikela, elungele imikhiqizo yezingane, ingaphakathi lemoto, izinto zokupakisha, kanye namathangi amakhulu okugcina izimboni nezolimo, amathoyizi, imigwaqo yokuqapha imigwaqo, njll., futhi ithemba lemakethe likhulu kakhulu. . -
I-Petronas amathani ayizigidi ezingu-1.65 e-polyolefin isizobuyela emakethe yase-Asia!
Ngokwezindaba zakamuva, i-Pengerang e-Johor Bahru, e-Malaysia, isiqale kabusha iyunithi yayo engu-350,000-ton/year linear low-density polyethylene (LLDPE) ngoJulayi 4, kodwa iyunithi ingase ithathe isikhashana Ukufeza ukusebenza okuzinzile. Ngaphandle kwalokho, imboni yayo ye-Spheripol technology engamathani angu-450,000/ngonyaka we-polypropylene (PP), amathani angu-400,000/ngonyaka we-high-density polyethylene (HDPE) kanye nobuchwepheshe be-Spherizone amathani angu-450,000/ngonyaka we-polypropylene (PP) nazo kulindeleke ukuthi zikhule kusukela kule nyanga ukuze ziqale kabusha. Ngokusho kokuhlola kuka-Argus, intengo ye-LLDPE e-Southeast Asia ngaphandle kwentela ngoJulayi 1 ingu-US$1360-1380/ton CFR, futhi intengo yokudweba ngocingo kwe-PP eSoutheast Asia ngoJulayi 1 ingu-US$1270-1300/ton CFR ngaphandle kwentela. .