Nkhani
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Maoda a Chemdo a PVC resin SG5 adatumizidwa ndi kampani yonyamula katundu wambiri pa Ogasiti 1.
Pa Ogasiti 1, 2022, oda ya PVC resin SG5 yomwe idaperekedwa ndi Leon, manejala wogulitsa ku Chemdo, idanyamulidwa ndi sitima yayikulu panthawi yoikika ndipo idachoka ku Tianjin Port, China, kupita ku Guayaquil, Ecuador. Ulendowu ndi KEY OHANA HKG131, nthawi yoti ifike ndi Seputembala 1. Tikukhulupirira kuti zonse ziyenda bwino paulendo ndipo makasitomala apeza katunduyo mwachangu. -
Chipinda chowonetsera cha Chemdo chikuyamba ntchito yomanga.
M'mawa wa pa Ogasiti 4, 2022, Chemdo anayamba kukongoletsa chipinda chowonetsera cha kampaniyo. Chiwonetserocho chapangidwa ndi matabwa olimba kuti chiwonetse mitundu yosiyanasiyana ya PVC, PP, PE, ndi zina zotero. Chimachita makamaka ntchito yowonetsa ndi kuwonetsa katundu, komanso chingathenso kuchita ntchito yolengeza ndi kuwonetsa, ndipo chimagwiritsidwa ntchito powulutsa pompopompo, kujambula ndi kufotokozera mu dipatimenti yodziwonera. Tikuyembekezera kumaliza izi mwachangu momwe tingathere ndikukubweretserani zambiri. -
Kodi mungadziwe bwanji ngati pulasitiki ndi polypropylene?
Njira imodzi yosavuta yoyesera lawi ndi kudula chitsanzo kuchokera ku pulasitiki ndikuyatsa mu kabati yoyatsira moto. Mtundu wa lawi, fungo, ndi makhalidwe a kuyaka zingapereke chizindikiro cha mtundu wa pulasitiki: 1. Polyethylene (PE) - Madontho, amanunkhira ngati sera ya kandulo; 2. Polypropylene (PP) - Madontho, amanunkhira kwambiri mafuta a injini odetsedwa ndi sera ya kandulo; 3. Polymethylmethacrylate (PMMA, "Perspex") - Mabulubu, ma crackles, fungo lokoma lonunkhira bwino; 4. Polyamide kapena "Nylon" (PA) - Lawi lofewa, fungo la marigolds; 5. Acrylonitrilebutadienestyrene (ABS) - Lawi losawoneka bwino, lofewa, fungo la marigolds; 6. Polyethylene thovu (PE) - Madontho, fungo la sera ya kandulo -
Kampani ya Mars M Beans yatulutsa mapepala opangidwa ndi PLA omwe amawola mosavuta ku China.
Mu 2022, Mars adayambitsa chokoleti choyamba cha M&M chomwe chidapakidwa mu pepala lopangidwa ndi zinthu zomwe zimawonongeka ku China. Chimapangidwa ndi zinthu zomwe zimawonongeka monga pepala ndi PLA, zomwe zimalowa m'malo mwa ma CD ofewa apulasitiki akale. Ma CD adadutsa GB/T. Njira yodziwira ya 19277.1 yatsimikizira kuti pansi pa zinthu zopangira manyowa m'mafakitale, imatha kuwonongeka ndi 90% m'miyezi 6, ndipo idzakhala madzi osapha poizoni, carbon dioxide ndi zinthu zina pambuyo poti yawonongeka. -
Kutumiza kunja kwa PVC ku China kukupitirirabe kukhala kokwera m'gawo loyamba la chaka.
Malinga ndi ziwerengero zaposachedwa za kasitomu, mu June 2022, kuchuluka kwa ufa wa PVC wopangidwa kuchokera kunja kwa dziko langa kunali matani 29,900, kuwonjezeka kwa 35.47% kuchokera mwezi watha komanso kuwonjezeka kwa 23.21% pachaka; mu June 2022, kuchuluka kwa ufa wa PVC wopangidwa kuchokera kunja kwa dziko langa kunali matani 223,500, kuchepa kwa mwezi ndi mwezi kunali 16%, ndipo kuwonjezeka kwa chaka ndi chaka kunali 72.50%. Kuchuluka kwa katundu wopangidwa kunja kunapitiliza kukhalabe pamlingo wapamwamba, zomwe zinachepetsa kuchuluka kwa zinthu zomwe zimapezeka pamsika wamkati mpaka pamlingo winawake. -
Kodi Polypropylene (PP) ndi chiyani?
Polypropylene (PP) ndi thermoplastic yolimba, yolimba, komanso yopangidwa ndi kristalo. Imapangidwa kuchokera ku propene (kapena propylene) monomer. Utomoni wa hydrocarbon wolunjika uwu ndiye polima wopepuka kwambiri pakati pa mapulasitiki onse ogulitsa. PP imabwera ngati homopolymer kapena copolymer ndipo imatha kuwonjezeredwa kwambiri ndi zowonjezera. Imagwiritsidwa ntchito mu ma CD, magalimoto, zinthu zogulira, zamankhwala, mafilimu opangidwa ndi pulasitiki, ndi zina zotero. PP yakhala chinthu chosankhidwa, makamaka mukafuna polima wamphamvu kwambiri (monga, motsutsana ndi Polyamide) mu ntchito zaukadaulo kapena kungofuna phindu la ndalama m'mabotolo opangira zinthu (motsutsana ndi PET). -
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. -
Msonkhano wa Mmawa wa Chemdo pa 26 Julayi.
M'mawa wa pa Julayi 26, Chemdo adachita msonkhano wa gulu. Poyamba, manejala wamkulu adafotokoza maganizo ake pa momwe chuma chilili pano: chuma cha padziko lonse chatsika, makampani onse amalonda akunja akuchepa, kufunikira kukuchepa, ndipo chiwongola dzanja cha katundu wapanyanja chikutsika. Ndipo kumbutsani antchito kuti kumapeto kwa Julayi, pali nkhani zina zaumwini zomwe ziyenera kuthetsedwa, zomwe zitha kukonzedwa mwachangu. Ndipo adatsimikiza mutu wa kanema watsopano wa atolankhani sabata ino: Kutsika Kwambiri kwa Malonda akunja. Kenako adapempha ogwira nawo ntchito angapo kuti agawane nkhani zaposachedwa, ndipo pomaliza adapempha madipatimenti azachuma ndi zolemba kuti asunge zikalatazo bwino. -
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.