Izindaba Zemboni
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Isetshenziselwa yiphi i-HDPE?
I-HDPE isetshenziswa emikhiqizweni nasekupakishweni okufana nezimbiza zobisi, amabhodlela okuhlanza, amabhavu e-margarine, izitsha zikadoti namapayipi amanzi.Kumashubhu anobude obuhlukahlukene , i-HDPE isetshenziswa esikhundleni samashubhu odaka ekhadibhodi ahlinzekiwe ngezizathu ezimbili eziyinhloko.Okokuqala, iphephe kakhulu kunamashubhu ekhadibhodi anikeziwe ngoba uma igobolondo belingangasebenzi kahle futhi liqhume ngaphakathi kweshubhu le-HDPE, ishubhu ngeke liphihlize.Isizathu sesibili ukuthi angasetshenziswa kabusha okuvumela abaklami ukuthi bakhe ama-rack mortar racks amaningi.Ochwepheshe be-Pyrotechnician abakukhuthazi ukusetshenziswa kwamashubhu e-PVC kumashubhu odaka ngoba avame ukuphahlazeka, athumele izingcezu zepulasitiki ezibukelini ezingaba khona, futhi ngeke abonakale kuma-X ray.. -
I-PLA green card iba yisixazululo esimeme esidumile embonini yezezimali.
Ipulasitiki eningi iyadingeka ukwenza amakhadi asebhange njalo ngonyaka, futhi ngokukhula kokukhathazeka kwemvelo, uThales, umholi wezokuphepha zobuchwepheshe obuphezulu, uye wasungula isisombululo.Isibonelo, ikhadi elenziwe nge-85% ye-polylactic acid (PLA), etholakala kummbila;enye indlela entsha ukusebenzisa izicubu zokuhlanza ugu ngokusebenzisana neqembu lezemvelo iParley for the Oceans.Imfucumfucu yepulasitiki eqoqiwe - "i-Ocean Plastic®" njengento emisha yokukhiqiza amakhadi;kukhona futhi inketho yamakhadi e-PVC aphinde agaywa kabusha enziwe ngokuphelele kusuka kudoti epulasitiki kusuka embonini yokupakisha nokuphrinta ukuze kuncishiswe ukusetshenziswa kwepulasitiki entsha.. -
Ukuhlaziywa okufushane kwedatha ye-China yokunamathisela i-pvc resin yokungenisa nokuthekelisa kusuka ngoJanuwari kuya kuJuni.
Kusukela ngoJanuwari kuya kuJuni 2022, izwe lami langenisa amathani angama-37,600 e-paste resin, ukwehla ngo-23% uma kuqhathaniswa nesikhathi esifanayo ngonyaka odlule, futhi lathumela ngaphandle isamba esingamathani angama-46,800 e-paste resin, okuwukukhula ngo-53.16% uma kuqhathaniswa ne isikhathi esifanayo ngonyaka odlule.Engxenyeni yokuqala yonyaka, ngaphandle kwamabhizinisi angawodwana avala ukuze alungiswe, umthwalo wokusebenza wefektri ye-paste resin yasekhaya yahlala isezingeni eliphezulu, ukuhlinzekwa kwezimpahla kwakwanele, futhi imakethe iqhubekile nokwehla.Abakhiqizi bafune ngenkuthalo imiyalo yokuthekelisa ukuze banciphise ukungqubuzana kwezimakethe zasekhaya, futhi ivolumu yokuthunyelwa kwempahla eqoqwayo yanda kakhulu . -
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 kwamaphepha okuyinhlanganisela ye-PLA engaboli 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, ezokwelapha, amafilimu asakazwayo, njll. I-PP isiphenduke into ekhethwayo, ikakhulukazi uma ufuna i-polymer enamandla aphakeme (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 kwizicelo ezahlukahlukene esakhiweni 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.. -
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
