Nkhani Zamakampani
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Kodi Polyethylene (PE) ndi chiyani?
Polyethylene (PE), yomwe imadziwikanso kuti polythene kapena polyethene, ndi imodzi mwa mapulasitiki omwe amagwiritsidwa ntchito kwambiri padziko lonse lapansi. Ma polyethylene nthawi zambiri amakhala ndi kapangidwe kolunjika ndipo amadziwika kuti ndi ma polima owonjezera. Ntchito yayikulu ya ma polima opangidwa awa ndi mu phukusi. Polyethelyne nthawi zambiri imagwiritsidwa ntchito popanga matumba apulasitiki, mabotolo, mafilimu apulasitiki, zotengera, ndi ma geomembrane. Zitha kudziwika kuti matani opitilira 100 miliyoni a polyethene amapangidwa pachaka pazifukwa zamalonda ndi zamafakitale. -
Kusanthula momwe msika wa PVC wotumizira kunja kwa dziko langa umagwirira ntchito mu theka loyamba la chaka cha 2022.
Mu theka loyamba la chaka cha 2022, msika wogulitsa zinthu za PVC unakula chaka ndi chaka. Mu kotala loyamba, lomwe lakhudzidwa ndi kuchepa kwa chuma padziko lonse komanso mliriwu, makampani ambiri ogulitsa zinthu zakunja adawonetsa kuti kufunikira kwa ma disk akunja kwachepa. Komabe, kuyambira kumayambiriro kwa Meyi, chifukwa cha kusintha kwa mliriwu komanso njira zingapo zomwe boma la China lakhazikitsa kuti lilimbikitse kuchira kwachuma, kuchuluka kwa makampani opanga ma PVC m'nyumba kwakhala kwakukulu, msika wogulitsa zinthu za PVC wakwera, ndipo kufunikira kwa ma disk akunja kwawonjezeka. Chiwerengerochi chikuwonetsa kukula kwina, ndipo magwiridwe antchito onse amsika akwera poyerekeza ndi nthawi yapitayi. -
Kodi PVC imagwiritsidwa ntchito pa chiyani?
Polyvinyl chloride (PVC, kapena vinyl) yotsika mtengo komanso yogwiritsidwa ntchito mosiyanasiyana imagwiritsidwa ntchito m'magawo osiyanasiyana m'nyumba ndi zomangamanga, chisamaliro chaumoyo, zamagetsi, magalimoto ndi magawo ena, pazinthu zosiyanasiyana kuyambira mapaipi ndi siding, matumba amagazi ndi machubu, mpaka mawaya ndi ma cable insulation, zida zamagalasi ndi zina zambiri. -
Ntchito yokulitsa ethylene ndi kuyeretsa ya Hainan Refinery yolemera matani miliyoni iperekedwa.
Pulojekiti ya Hainan Refining and Chemical Ethylene ndi Refining Reconstruction and Expansion Project zili ku Yangpu Economic Development Zone, zomwe zagwiritsidwa ntchito pa ndalama zokwana mayuan opitilira 28 biliyoni. Mpaka pano, kupita patsogolo konse kwa ntchito yomanga kwafika pa 98%. Ntchitoyi ikamalizidwa ndikuyikidwa mu kupanga, ikuyembekezeka kuyendetsa mayuan opitilira 100 biliyoni a mafakitale otsika. Msonkhano wa Olefin Feedstock Diversification ndi High-end Downstream udzachitika ku Sanya pa Julayi 27-28. Pansi pa mkhalidwe watsopanowu, chitukuko cha mapulojekiti akuluakulu monga PDH, ndi kuphwanya kwa ethane, njira yamtsogolo yaukadaulo watsopano monga mafuta osakonzedwa mwachindunji ku ma olefin, komanso kupanga kwatsopano kwa malasha/methanol ku ma olefin kudzakambidwa. -
MIT: Tinthu tating'onoting'ono ta polylactic-glycolic acid copolymer timapanga katemera "wodzilimbitsa".
Asayansi ku Massachusetts Institute of Technology (MIT) akufotokoza mu magazini yaposachedwa ya Science Advances kuti akupanga katemera wodzilimbitsa wokha. Katemera akalowetsedwa m'thupi la munthu, amatha kutulutsidwa kangapo popanda kufunikira jakisoni wowonjezera. Katemera watsopanoyu akuyembekezeka kugwiritsidwa ntchito polimbana ndi matenda kuyambira chikuku mpaka Covid-19. Akuti katemera watsopanoyu wapangidwa ndi tinthu ta poly(lactic-co-glycolic acid) (PLGA). PLGA ndi mankhwala a polymer organic omwe amatha kuwonongeka, omwe si poizoni ndipo ali ndi mgwirizano wabwino ndi thupi. Avomerezedwa kuti agwiritsidwe ntchito mu Implants, sutures, zipangizo zokonzera, ndi zina zotero. -
Kampani ya Yuneng Chemical: Kupanga koyamba kwa polyethylene yopopera!
Posachedwapa, gawo la LLDPE la Polyolefin Center of Yuneng Chemical Company lapanga bwino DFDA-7042S, chinthu chopopera cha polyethylene. Zikumveka kuti chinthu chopopera cha polyethylene ndi chinthu chochokera ku chitukuko chachangu cha ukadaulo wokonza zinthu. Zipangizo zapadera za polyethylene zokhala ndi mphamvu yopopera pamwamba zimathetsa vuto la utoto woipa wa polyethylene ndipo zimakhala zonyezimira kwambiri. Chogulitsachi chingagwiritsidwe ntchito m'minda yokongoletsera ndi yoteteza, yoyenera zinthu za ana, mkati mwa magalimoto, zipangizo zopakira, komanso matanki akuluakulu osungiramo zinthu zamafakitale ndi zaulimi, zoseweretsa, zotchingira misewu, ndi zina zotero, ndipo msika uli ndi chiyembekezo chachikulu. -
Petronas matani 1.65 miliyoni a polyolefin atsala pang'ono kubwerera kumsika waku Asia!
Malinga ndi nkhani zaposachedwa, Pengerang ku Johor Bahru, Malaysia, yayambiranso chipangizo chake cha polyethylene (LLDPE) cha matani 350,000 pachaka pa Julayi 4, koma chipangizochi chingatenge nthawi kuti chigwire ntchito bwino. Kupatula apo, chipangizo chake cha Spheripol cha matani 450,000 pachaka cha polypropylene (PP), matani 400,000 pachaka cha polyethylene (HDPE) ndi chipangizo cha Spherizone cha matani 450,000 pachaka cha polypropylene (PP) chikuyembekezekanso kukwera kuyambira mwezi uno kuti chiyambenso kugwira ntchito. Malinga ndi kuwunika kwa Argus, mtengo wa LLDPE ku Southeast Asia popanda msonkho pa Julayi 1 ndi US$1360-1380/ton CFR, ndipo mtengo wa waya wa PP ku Southeast Asia pa Julayi 1 ndi US$1270-1300/ton CFR popanda msonkho. -
Ndudu zayamba kugwiritsa ntchito mapulasitiki osungunuka omwe amawola ku India.
Kuletsa kwa India kugwiritsa ntchito mapulasitiki 19 ogwiritsidwa ntchito kamodzi kwapangitsa kuti makampani ake a ndudu asinthe. Pasanafike pa Julayi 1, opanga ndudu aku India adasintha ma CD awo akale a pulasitiki kukhala ma CD apulasitiki ovunda. Bungwe la Tobacco Institute of India (TII) likunena kuti mamembala awo asinthidwa ndipo mapulasitiki ovunda omwe amagwiritsidwa ntchito akwaniritsa miyezo yapadziko lonse lapansi, komanso muyezo wa BIS womwe watulutsidwa posachedwapa. Amanenanso kuti kuwonongeka kwa mapulasitiki ovunda kumayamba pokhudzana ndi nthaka ndipo kumawonongeka mwachilengedwe popanga manyowa popanda kukakamiza njira zosonkhanitsira zinyalala zolimba ndi kubwezeretsanso zinthu. -
Kusanthula Kwachidule kwa Kugwira Ntchito kwa Msika wa Calcium Carbide Wapakhomo mu Gawo Loyamba la Chaka.
Mu theka loyamba la chaka cha 2022, msika wa calcium carbide m'dziko muno sunapitirire kusinthasintha kwakukulu mu 2021. Msika wonse unali pafupi ndi malire a mtengo, ndipo unasintha chifukwa cha kukhudzidwa kwa zipangizo zopangira, kupezeka ndi kufunikira, komanso mikhalidwe yotsika. Mu theka loyamba la chaka, panalibe mphamvu yatsopano yowonjezera ya mafakitale a PVC a calcium carbide m'nyumba, ndipo kuwonjezeka kwa kufunikira kwa msika wa calcium carbide kunali kochepa. N'zovuta kwa makampani a chlor-alkali omwe amagula calcium carbide kuti asunge katundu wokhazikika kwa nthawi yayitali. -
Kuphulika kunachitika mu PVC reactor ya chimphona chachikulu cha petrochemical ku Middle East!
Kampani yayikulu yamafuta ku Turkey, Petkim, yalengeza kuti madzulo a pa 19 June, 2022, kuphulika kunachitika pa fakitale ya Aliaga. Ngoziyi idachitika pa reactor ya PVC ya fakitaleyo, palibe amene adavulala, motowo unawongoleredwa mwachangu, koma chipangizo cha PVC chikhoza kukhala chopanda ntchito kwakanthawi chifukwa cha ngoziyi. Chochitikachi chikhoza kukhudza kwambiri msika wa PVC ku Europe. Akuti chifukwa mtengo wa PVC ku China ndi wotsika kwambiri kuposa wa zinthu zapakhomo ku Turkey, ndipo mtengo wa PVC ku Europe ndi wokwera kuposa wa ku Turkey, zinthu zambiri za PVC za Petkim pakadali pano zimatumizidwa ku msika waku Europe. -
BASF ikupanga mathireyi a uvuni okhala ndi PLA!
Pa June 30, 2022, BASF ndi kampani yopanga ma CD a chakudya ku Australia, Confoil, adagwirizana kuti apange thireyi yovomerezeka yothira manyowa, yogwiritsidwa ntchito kawiri mu uvuni - DualPakECO®. Mkati mwa thireyi ya mapepala muli yokutidwa ndi BASF's ecovio® PS1606, bioplastic yogwiritsidwa ntchito kwambiri yopangidwa ndi BASF. Ndi pulasitiki yosinthika (70%) yosakanikirana ndi zinthu za BASF's ecoflex ndi PLA, ndipo imagwiritsidwa ntchito makamaka popanga zokutira za mapepala kapena makatoni. Ali ndi mphamvu zabwino zoletsa mafuta, zakumwa ndi fungo ndipo amatha kusunga mpweya woipa. -
Kugwiritsa ntchito ulusi wa polylactic acid ku yunifolomu ya sukulu.
Fengyuan Bio-Fiber yagwirizana ndi Fujian Xintongxing kuti igwiritse ntchito ulusi wa polylactic acid ku nsalu zobvala kusukulu. Ntchito yake yabwino kwambiri yoyamwa chinyezi ndi thukuta ndi yowirikiza ka 8 kuposa ulusi wamba wa polyester. Ulusi wa PLA uli ndi mphamvu zabwino kwambiri zotsutsana ndi mabakiteriya kuposa ulusi wina uliwonse. Kulimba kwa ulusiwo kumafika 95%, zomwe ndi zabwino kwambiri kuposa ulusi wina uliwonse wa mankhwala. Kuphatikiza apo, nsalu yopangidwa ndi ulusi wa polylactic acid ndi yabwino pakhungu komanso imateteza chinyezi, imatentha komanso imapuma, ndipo imathanso kuletsa mabakiteriya ndi nthata, komanso imakhala yoletsa moto komanso yosapsa. Yunifolomu ya sukulu yopangidwa ndi nsalu iyi ndi yotetezeka ku chilengedwe, yotetezeka komanso yabwino kwambiri.