Izindaba
-
Ungabona kanjani ukuthi ipulasitiki iyi-polypropylene?
Enye yezindlela ezilula zokwenza isivivinyo selangabi ukusika isampula epulasitikini bese uyishisa ekhabetheni lomlilo. Umbala welangabi, iphunga kanye nezici zokusha kunganikeza inkomba yohlobo lwepulasitiki: 1. I-Polyethylene (PE) - Amaconsi, inuka njenge-candlewax; 2. I-Polypropylene (PP) - Amaconsi, inuka kakhulu uwoyela wenjini ongcolile kanye ne-candlewax engaphansi; 3. I-Polymethylmethacrylate (PMMA, “Perspex”) - Amabhamuza, ama-crackles, iphunga elimnandi elimnandi; 4. I-Polyamide noma i-“Nylon” (PA) - Ilangabi elinomswakama, iphunga le-marigolds; 5. I-Acrylonitrilebutadienestyrene (ABS) - Ilangabi elingabonakali, elinomswakama, iphunga le-marigolds; 6. I-Polyethylene foam (PE) - Amaconsi, iphunga le-candlewax -
I-Mars M Beans yethula ukupakisha iphepha elihlanganisiwe le-PLA elibolayo eShayina.
Ngo-2022, iMars yethule ushokoledi wokuqala we-M&M opakishwe ephepheni elihlanganisiwe elibolayo eShayina. Wenziwe ngezinto ezibolayo njengephepha ne-PLA, okuthatha indawo yokupakisha kwepulasitiki ethambile yendabuko esikhathini esidlule. Ukupakisha sekudlule i-GB/T. Indlela yokunquma ka-19277.1 iqinisekisile ukuthi ngaphansi kwezimo zokwenziwa komquba wezimboni, kungabola ngaphezu kuka-90% ezinyangeni eziyi-6, futhi kuzoba amanzi angenabo ubuthi ngokwezinto eziphilayo, i-carbon dioxide neminye imikhiqizo ngemva kokubola. -
Ukuthunyelwa kwamanye amazwe kwe-PVC eShayina kusalokhu kuphezulu engxenyeni yokuqala yonyaka.
Ngokwezibalo zakamuva zentela, ngoJuni 2022, umthamo wokungenisa wempuphu emsulwa ye-PVC ezweni lami wawungamathani angu-29,900, ukwanda ngo-35.47% kusukela enyangeni edlule kanye nokwanda konyaka nonyaka okungu-23.21%; ngoJuni 2022, umthamo wokuthumela impuphu emsulwa ye-PVC ezweni lami wawungamathani angu-223,500, Ukwehla kwenyanga nonyaka kwaba ngu-16%, kanti ukwanda konyaka nonyaka kwaba ngu-72.50%. Umthamo wokuthumela kwamanye amazwe waqhubeka nokugcina izinga eliphezulu, okwanciphisa ukutholakala okuningi emakethe yasekhaya ngezinga elithile. -
Kuyini i-Polypropylene (PP)?
I-Polypropylene (PP) iyi-thermoplastic eqinile, eqinile, futhi ekristalu. Yenziwe nge-propene (noma i-propylene) monomer. Le resin ye-hydrocarbon eqondile iyi-polymer elula kunazo zonke phakathi kwazo zonke ipulasitiki zezimpahla. I-PP iza njenge-homopolymer noma njenge-copolymer futhi ingathuthukiswa kakhulu ngezithasiselo. Itholakala ekupakisheni, ezimotweni, ezimakethe zabathengi, kwezokwelapha, kumafilimu enziwe ngensimbi, njll. I-PP isibe yinto ekhethwayo, ikakhulukazi uma ufuna i-polymer enamandla aphezulu (isb., vs. Polyamide) ezinhlelweni zobunjiniyela noma nje ufuna inzuzo yezindleko emabhodleleni okubumba (vs. PET). -
Kuyini i-Polyethylene (PE)?
I-Polyethylene (PE), eyaziwa nangokuthi i-polythene noma i-polyethene, ingenye yamapulasitiki asetshenziswa kakhulu emhlabeni. Ama-polyethylene ngokuvamile anesakhiwo esiqondile futhi aziwa ngokuthi ama-polymers engeziwe. Ukusetshenziswa okuyinhloko kwala ma-polymers okwenziwa kusekupakishweni. I-Polyethelyne ivame ukusetshenziselwa ukwenza izikhwama zepulasitiki, amabhodlela, amafilimu epulasitiki, izitsha, kanye nama-geomembrane. Kungaphawulwa ukuthi amathani angaphezu kwezigidi eziyi-100 e-polyethene akhiqizwa minyaka yonke ngezinjongo zezentengiselwano nezezimboni. -
Ukuhlaziywa kokusebenza kwemakethe yokuthumela ngaphandle ye-PVC yezwe lami engxenyeni yokuqala ka-2022.
Engxenyeni yokuqala ka-2022, imakethe yokuthumela ngaphandle ye-PVC yanda unyaka nonyaka. Engxenyeni yokuqala, ethintwe ukwehla komnotho womhlaba kanye nobhubhane, izinkampani eziningi zokuthumela ngaphandle zasekhaya zibonise ukuthi isidingo samadiski angaphandle sinciphile. Kodwa-ke, kusukela ekuqaleni kukaMeyi, ngokuthuthukiswa kwesimo sobhubhane kanye nochungechunge lwezinyathelo ezethulwe uhulumeni waseShayina ukukhuthaza ukuvuselelwa komnotho, izinga lokusebenza kwamabhizinisi okukhiqiza i-PVC asekhaya libe phezulu kakhulu, imakethe yokuthumela ngaphandle ye-PVC ifudumele, futhi isidingo samadiski angaphandle sikhulile. Inani libonisa umkhuba othile wokukhula, futhi ukusebenza kwemakethe sekuthuthukile uma kuqhathaniswa nesikhathi esedlule. -
Isetshenziswa kuphi i-PVC?
I-polyvinyl chloride (i-PVC, noma i-vinyl) engabizi futhi eguquguqukayo isetshenziswa ezinhlotsheni ezahlukahlukene zezakhiwo nokwakhiwa, ukunakekelwa kwempilo, izinto zikagesi, izimoto kanye neminye imikhakha, emikhiqizweni esukela ekufakeni amapayipi kanye nokufaka amapayipi, izikhwama zegazi kanye namapayipi, kuya ekufakweni kwentambo kanye nekhebula, izingxenye zesistimu yefasitela lemoto nokuningi. -
Umhlangano Wasekuseni kaChemdo ngomhlaka-26 kuJulayi.
Ekuseni ngomhlaka-26 kuJulayi, uChemdo wabamba umhlangano wokubambisana. Ekuqaleni, umphathi jikelele waveza imibono yakhe ngesimo somnotho samanje: umnotho womhlaba uphansi, yonke imboni yezohwebo lwangaphandle iphansi, isidingo siyancipha, futhi izinga lokuthutha olwandle liyehla. Futhi khumbuza abasebenzi ukuthi ekupheleni kukaJulayi, kunezindaba zomuntu siqu okudingeka kubhekwane nazo, ezingahlelwa ngokushesha okukhulu. Futhi wanquma isihloko sevidiyo entsha yabezindaba yaleli sonto: Ukucindezeleka Okukhulu kwezohwebo lwangaphandle. Wabe esemema ozakwabo abaningana ukuthi babelane ngezindaba zakamuva, futhi ekugcineni wanxusa iminyango yezezimali kanye nemibhalo ukuthi igcine imibhalo kahle. -
Iphrojekthi yokwandisa i-ethylene kanye nokucwenga yeHainan Refinery engamathani ayizigidi isizodluliselwa.
Iphrojekthi Yokuhlanza Nokuhlanzwa Kwamakhemikhali iHainan kanye neProjekthi Yokuvuselela Nokukhulisa Ingcebo Zitholakala eYangpu Economic Development Zone, ngokutshalwa kwezimali okuphelele okungaphezu kwama-yuan ayizigidi eziyizinkulungwane ezingama-28. Kuze kube manje, inqubekela phambili yokwakha iyonke ifinyelele ku-98%. Ngemva kokuba iphrojekthi isiqediwe futhi yafakwa ekukhiqizweni, kulindeleke ukuthi iqhube ama-yuan angaphezu kwezigidi eziyizinkulungwane eziyi-100 ezimbonini ezingezansi. I-Olefin Feedstock Diversification kanye ne-High-end Downstream Forum izobanjelwa eSanya ngoJulayi 27-28. Ngaphansi kwalesi simo esisha, kuzoxoxwa ngentuthuko yamaphrojekthi amakhulu njenge-PDH, kanye nokuqhekeka kwe-ethane, umkhuba wesikhathi esizayo wobuchwepheshe obusha njengowoyela ongahluziwe oqondile kuma-olefin, kanye nokukhiqizwa okusha kwamalahle/i-methanol kuma-olefin. -
I-MIT: Ama-microparticles e-polylactic-glycolic acid copolymer enza umuthi wokugomela “ozithuthukisayo”.
Ososayensi eMassachusetts Institute of Technology (MIT) babika ephephabhukwini lakamuva i-Science Advances ukuthi bakha umuthi wokugomela ozikhulisayo womthamo owodwa. Ngemva kokuba umuthi wokugomela ufakwe emzimbeni womuntu, ungakhishwa izikhathi eziningi ngaphandle kwesidingo somjovo wokuqinisa. Umuthi wokugomela omusha kulindeleke ukuthi usetshenziswe ezifweni ezisukela ku-masculine kuya ku-Covid-19. Kubikwa ukuthi lo muthi wokugomela omusha wenziwe ngezinhlayiya ze-poly(lactic-co-glycolic acid) (PLGA). I-PLGA iyinhlanganisela ye-polymer esebenzayo ebolayo, engenabo ubuthi futhi enokuvumelana okuhle kwezinto eziphilayo. Ivunyelwe ukusetshenziswa kuma-Implants, ama-sutures, izinto zokulungisa, njll. -
Inkampani Yamakhemikhali i-Yuneng: Ukukhiqizwa kokuqala kwezimboni kwe-polyethylene efuthwayo!
Muva nje, iyunithi ye-LLDPE ye-Polyolefin Center of Yuneng Chemical Company ikhiqize ngempumelelo i-DFDA-7042S, umkhiqizo we-polyethylene ofuthwayo. Kuyaqondakala ukuthi umkhiqizo we-polyethylene ofuthwayo uwumkhiqizo osuselwa ekuthuthukisweni okusheshayo kobuchwepheshe bokucubungula obusezansi. Izinto ze-polyethylene ezikhethekile ezisebenza kahle ngokufutha ebusweni zixazulula inkinga yokusebenza kabi kombala we-polyethylene futhi zicwebezela kakhulu. Umkhiqizo ungasetshenziswa emikhakheni yokuhlobisa nokuvikela, ofanele imikhiqizo yezingane, izinto zangaphakathi zezimoto, izinto zokupakisha, kanye namathangi amakhulu okugcina ezimboni nezolimo, amathoyizi, imigwaqo yokuvikela imigwaqo, njll., futhi amathuba emakethe aphezulu kakhulu. -
Amathani ayizigidi ezingu-1.65 e-polyolefin asezobuyela emakethe yase-Asia!
Ngokusho kwezindaba zakamuva, iPengerang eJohor Bahru, eMalaysia, iqalise kabusha iyunithi yayo ye-polyethylene ephansi (LLDPE) engamathani angu-350,000 ngonyaka ngoJulayi 4, kodwa le yunithi ingathatha isikhathi ukufeza ukusebenza okuzinzile. Ngaphandle kwalokho, isitshalo sayo se-polypropylene (PP) esingu-450,000 ngonyaka, isitshalo se-polypropylene (HDPE) esingu-400,000 ngonyaka kanye nesitshalo se-polypropylene (PP) esingu-450,000 ngonyaka kulindeleke ukuthi sikhuphuke kusukela kule nyanga ukuze siqale kabusha. Ngokusho kokuhlolwa kwe-Argus, intengo ye-LLDPE eNingizimu-mpumalanga ye-Asia ngaphandle kwentela ngoJulayi 1 ingu-US$1360-1380/ton CFR, kanti intengo yokudweba ucingo lwe-PP eNingizimu-mpumalanga ye-Asia ngoJulayi 1 ingu-US$1270-1300/ton CFR ngaphandle kwentela.