Iindaba zeShishini
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Yintoni iPolyethylene (PE)?
I-Polyethylene (PE), eyaziwa ngokuba yi-polythene okanye i-polyethene, yenye yeeplastiki ezisetyenziswa kakhulu kwihlabathi liphela. Ii-Polyethylene zihlala zinesakhiwo esithe nkqo kwaye zaziwa ngokuba zii-polymers ezongezelelweyo. Ukusetyenziswa okuphambili kwezi polymers zokwenziwa kukwiphakheji. I-Polyethelyne idla ngokusetyenziswa ukwenza iingxowa zeplastiki, iibhotile, iifilimu zeplastiki, izikhongozeli, kunye nee-geomembranes. Kunokuqatshelwa ukuba ngaphezulu kwe-100 yezigidi zeetoni ze-polyethene ziveliswa minyaka le ngeenjongo zorhwebo nezemizi-mveliso. -
Uhlalutyo lokusebenza kwemarike yokuthumela ngaphandle yePVC yelizwe lam kwisiqingatha sokuqala sowama-2022.
Kwisiqingatha sokuqala sowama-2022, imakethi yokuthumela ngaphandle ye-PVC inyukile unyaka nonyaka. Kwikota yokuqala, echatshazelwe kukwehla koqoqosho lwehlabathi kunye nobhubhane, iinkampani ezininzi zasekhaya ezithumela ngaphandle zibonise ukuba imfuno yeediski zangaphandle inciphile. Nangona kunjalo, ukusukela ekuqaleni kukaMeyi, ngokuphuculwa kwemeko yobhubhane kunye nothotho lwamanyathelo aqaliswe ngurhulumente waseTshayina ukukhuthaza ukubuyiselwa koqoqosho, izinga lokusebenza kwamashishini emveliso ye-PVC yasekhaya liphezulu, imakethi yokuthumela ngaphandle ye-PVC ifudumele, kwaye imfuno yeediski zangaphandle inyukile. Inani libonisa umkhwa othile wokukhula, kwaye ukusebenza ngokubanzi kwemarike kuphucukile xa kuthelekiswa nexesha elidlulileyo. -
Isetyenziselwa ntoni i-PVC?
I-polyvinyl chloride (i-PVC, okanye i-vinyl) engabizi kakhulu neguquguqukayo isetyenziswa kwiindlela ezahlukeneyo zokwakha, ukhathalelo lwempilo, izixhobo ze-elektroniki, iimoto kunye nezinye iindawo, kwiimveliso ezisusela kwiipayipi kunye nee-siding, iingxowa zegazi kunye neetyhubhu, ukuya kwi-wire kunye ne-cable insulation, izixhobo zenkqubo ye-windshield kunye nokunye. -
Iprojekthi yokwandisa i-ethylene kunye ne-refinery ye-Hainan Refinery ezizigidi zeetoni sele iza kunikezelwa.
Iprojekthi yeHainan Refining and Chemical Ethylene kunye neProjekthi yeRefining Reconstruction and Expansion zikwiYangpu Economic Development Zone, ngotyalo-mali olupheleleyo olungaphezulu kwe-28 yeebhiliyoni zeerandi. Ukuza kuthi ga ngoku, inkqubela phambili yokwakha iyonke ifikelele kwi-98%. Emva kokuba le projekthi igqityiwe kwaye ifakwa kwimveliso, kulindeleke ukuba iqhubele phambili i-100 yeebhiliyoni zeerandi zeerandi zamashishini asezantsi. I-Olefin Feedstock Diversification kunye neHigh-end Downstream Forum ziya kubanjelwa eSanya ngoJulayi 27-28. Phantsi kwale meko intsha, uphuhliso lweeprojekthi ezinkulu ezifana ne-PDH, kunye ne-ethane cracking, umkhwa wexesha elizayo wetekhnoloji entsha efana neoyile ekrwada ngqo kwi-olefins, kunye nokuveliswa okutsha kwamalahle/i-methanol kwi-olefins kuya kuxoxwa ngawo. -
I-MIT: Ii-microparticles ze-polylactic-glycolic acid copolymer zenza isitofu "esizikhulisayo".
Izazinzulu kwiMassachusetts Institute of Technology (MIT) zibika kwijenali yakutshanje iScience Advances ukuba ziphuhlisa isitofu sokugonya esizikhulisayo ngedosi enye. Emva kokuba isitofu sifakwe emzimbeni womntu, sinokukhutshwa amaxesha amaninzi ngaphandle kwesidingo somjovo wokunyusa. Isitofu esitsha kulindeleke ukuba sisetyenziswe ukulwa nezifo eziqala kwi-masisi ukuya kwi-Covid-19. Kubikwa ukuba esi sitofu sitsha senziwe ngamasuntswana e-poly(lactic-co-glycolic acid) (PLGA). I-PLGA yi-polymer organic compound esebenza ngokubola, engenabungozi kwaye ihambelana kakuhle ne-biocompatibility. Ivunyiwe ukuba isetyenziswe kwi-Implants, i-sutures, izixhobo zokulungisa, njl.njl. -
Inkampani yeYuneng Chemical: Imveliso yokuqala ye-polyethylene etshizwayo eyenziwe ngoshishino!
Kutshanje, iyunithi ye-LLDPE yeZiko lePolyolefin leYuneng Chemical Company iphumelele ukuvelisa i-DFDA-7042S, imveliso ye-polyethylene efafazwayo. Kuyaqondakala ukuba imveliso ye-polyethylene efafazwayo yimveliso evela kuphuhliso olukhawulezileyo lwetekhnoloji yokucubungula esezantsi. Izinto ezikhethekileyo ze-polyethylene ezisebenza ngokufafaza kumphezulu zisombulula ingxaki yokusebenza kakubi kombala we-polyethylene kwaye zikhazimla kakhulu. Le mveliso ingasetyenziswa kwiindawo zokuhombisa kunye nokukhusela, ezifanelekileyo kwiimveliso zabantwana, ngaphakathi kwezithuthi, izinto zokupakisha, kunye neetanki ezinkulu zokugcina izinto zoshishino nezolimo, iithoyi, iindlela zokukhusela, njl.njl., kwaye amathuba emarike aphezulu kakhulu. -
Iitoni ze-polyolefin ezizizigidi ezili-1.65 zePetronas ziza kubuyela kwimarike yaseAsia!
Ngokweendaba zamva nje, iPengerang eJohor Bahru, eMalaysia, iqalise kwakhona iyunithi yayo ye-350,000-ton/ngonyaka ye-linear low-density polyethylene (LLDPE) ngoJulayi 4, kodwa le yunithi ingathatha ixesha ukufezekisa ukusebenza okuzinzileyo. Ngaphandle koko, iteknoloji yayo yeSpheripol yeetoni ezingama-450,000/ngonyaka ye-polypropylene (PP), iitoni ezingama-400,000/ngonyaka ye-high-density polyethylene (HDPE) kunye neteknoloji yeSpherizone yeetoni ezingama-450,000/ngonyaka ye-polypropylene (PP) nazo kulindeleke ukuba zinyuke ukususela kule nyanga ukuze ziqalise kwakhona. Ngokutsho kovavanyo luka-Argus, ixabiso le-LLDPE eMzantsi-mpuma Asia ngaphandle kwerhafu ngoJulayi 1 yi-US$1360-1380/ton CFR, kwaye ixabiso lomzobo wentambo yePP eMzantsi-mpuma Asia ngoJulayi 1 yi-US$1270-1300/ton CFR ngaphandle kwerhafu. -
Iicuba zitshintshela kwiipakethe zeplastiki ezibolayo eIndiya.
Ukuvalwa kwe-India kwiiplastiki ezili-19 ezisetyenziswa kanye kuye kwabangela utshintsho kwishishini layo lecuba. Ngaphambi komhla woku-1 kuJulayi, abavelisi becuba baseIndiya babetshintshe ukupakisha kwabo kweplastiki eqhelekileyo ukuya kwiiplastiki ezinokubola. I-Tobacco Institute of India (TII) ithi amalungu abo aguquliwe kwaye iiplastiki ezinokubola ezisetyenzisiweyo ziyahlangabezana nemigangatho yamazwe ngamazwe, kunye nomgangatho we-BIS osandul’ ukukhutshwa. Bakwathi ukubola kweeplastiki ezinokubola kuqala xa zidibana nomhlaba kwaye zibola ngokwendalo xa kusenziwa umgquba ngaphandle kokugxininisa ekuqokeleleni inkunkuma eqinileyo kunye neenkqubo zokuphinda zisetyenziswe. -
Uhlalutyo olufutshane lokuSebenza kweMarike yeCalcium Carbide yasekhaya kwiSiqingatha sokuQala soNyaka.
Kwisiqingatha sokuqala sowama-2022, imakethi yekharbhide yecalcium yasekhaya ayizange iqhubeke nomkhwa wokuguquguquka ngokubanzi ngo-2021. Iyonke imakethi yayikufutshane nomgca weendleko, kwaye yayiphantsi kokuguquguquka nohlengahlengiso ngenxa yempembelelo yezinto eziluhlaza, ukubonelela kunye nemfuno, kunye neemeko ezisezantsi. Kwisiqingatha sokuqala sonyaka, bekungekho mandla matsha okwandisa izityalo zePVC zekharbhide yecalcium yasekhaya, kwaye ukwanda kwemfuno yemakethi yekharbhide bekulinganiselwe. Kunzima kumashishini e-chlor-alkali athenga ikharbhide yecalcium ukugcina umthwalo ozinzileyo ixesha elide. -
Ukuqhuma kwenzeke kwi-PVC reactor ye-petrochemical giant kuMbindi Mpuma!
Isikhulu se-petrochemical saseTurkey uPetkim ubhengeze ukuba ngokuhlwa kwe-19 kaJuni 2022, kwenzeke uqhushumbo kwisityalo sase-Aliaga. Ingozi yenzeke kwi-reactor ye-PVC yomzi-mveliso, akukho mntu wenzakeleyo, umlilo ulawuleke ngokukhawuleza, kodwa iyunithi ye-PVC isenokuba ayisebenzi okwethutyana ngenxa yengozi. Esi siganeko sinokuba nefuthe elikhulu kwimarike ye-PVC yaseYurophu. Kubikwa ukuba ngenxa yokuba ixabiso le-PVC eTshayina liphantsi kakhulu kuneleemveliso zasekhaya zaseTurkey, kwaye ixabiso le-PVC eYurophu liphezulu kunelaseTurkey, uninzi lweemveliso ze-PVC zePetkim ngoku zithunyelwa kwimarike yaseYurophu. -
I-BASF iphuhlisa iitreyi ze-oven ezigqunywe yi-PLA!
Ngomhla wama-30 kweyeSilimela ngo-2022, i-BASF kunye nomvelisi wokupakisha ukutya wase-Australia iConfoil badibene ukuze benze itreyi yokutya yephepha eqinisekisiweyo enokusetyenziswa njenge-compost, esebenza kabini kwi-oven – i-DualPakECO®. Ingaphakathi letreyi yephepha ligqunywe yi-BASF's ecovio® PS1606, i-bioplastic esebenza kakhulu ethengiswa yi-BASF. Yiplastiki evuselelwayo ebolayo (umxholo we-70%) exutywe neemveliso ze-BASF's ecoflex kunye ne-PLA, kwaye isetyenziselwa ngokukodwa ukuvelisa ii-coating zephepha okanye zekhadibhodi zokupakisha ukutya. Zineempawu ezintle zokuthintela amafutha, ulwelo kunye nevumba kwaye zinokugcina ukukhutshwa kwegesi ezitshisayo. -
Ukusebenzisa iifayibha ze-polylactic acid kwiyunifomu yesikolo.
I-Fengyuan Bio-Fiber isebenzisane neFujian Xintongxing ukufaka i-polylactic acid fiber kwimpahla yokunxiba esikolweni. Umsebenzi wayo ogqwesileyo wokufunxa umswakama kunye nokubila uphindwe kasibhozo kuneefayibha ze-polyester eziqhelekileyo. I-PLA fiber ineempawu ezingcono kakhulu zokulwa ne-bacteria kunezinye iifayibha. Ukuqina kwe-curling yefayibha kufikelela kwi-95%, nto leyo engcono kakhulu kunezinye iifayibha zekhemikhali. Ukongeza, ilaphu elenziwe nge-polylactic acid fiber lilungele ulusu kwaye alinamanzi, lifudumele kwaye liyaphefumla, kwaye linokuthintela iintsholongwane kunye neencukuthu, kwaye lithintele ilangatye kwaye lingatshi. Iiyunifomu zesikolo ezenziwe ngeli laphu zinobuhlobo ngakumbi nokusingqongileyo, zikhuselekile kwaye zikhululekile ngakumbi.