Izindaba
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Ukuhlaziywa Kwezinguquko Zezinhlobo Zokusetshenziswa Kwe-PE Ezingaphansi Kwesikhathi Esizayo.
Njengamanje, umthamo wokusetshenziswa kwe-polyethylene ezweni lakithi mkhulu, futhi ukuhlukaniswa kwezinhlobo zemikhiqizo yepulasitiki kuyinkimbinkimbi futhi kuthengiswa ngqo kubakhiqizi bemikhiqizo yepulasitiki. Ingowomkhiqizo wokugcina ongaphelele ochungechungeni lwemboni olungezansi lwe-ethylene. Uma kuhambisana nomthelela wokuhlushwa kwesifunda kokusetshenziswa kwasekhaya, igebe lokuhlinzekwa kwesifunda kanye nesidingo alilingani. Ngokwanda okugxilile kwamandla okukhiqiza kwamabhizinisi okukhiqiza e-polyethylene ezweni lami eminyakeni yamuva nje, uhlangothi lokuhlinzekwa lukhuphuke kakhulu. Ngesikhathi esifanayo, ngenxa yokuthuthuka okuqhubekayo kokukhiqiza kanye nezindinganiso zokuphila zezakhamuzi, isidingo sazo siye sanda kancane kancane eminyakeni yamuva nje. Kodwa-ke, kusukela engxenyeni yesibili ka-202... -
Yiziphi izinhlobo ezahlukene ze-polypropylene?
Kunezinhlobo ezimbili eziyinhloko ze-polypropylene ezitholakalayo: ama-homopolymer nama-copolymer. Ama-copolymer ahlukaniswe kabanzi ngama-block copolymer nama-random copolymers. Isigaba ngasinye sifanelana kangcono nezinye izinhlelo zokusebenza ezithile. I-Polypropylene ivame ukubizwa ngokuthi "insimbi" yemboni yepulasitiki ngenxa yezindlela ezahlukahlukene ezingashintshwa ngazo noma ezenziwe ngezifiso ukuze zifeze kangcono injongo ethile. Lokhu kuvame ukufezwa ngokungenisa izithasiselo ezikhethekile kuyo noma ngokuyikhiqiza ngendlela ethile kakhulu. Lokhu kuvumelana nezimo kuyimpahla ebalulekile. I-Homopolymer polypropylene iyizinga lenhloso ejwayelekile. Ungacabanga ngalokhu njengesimo esizenzakalelayo sezinto ze-polypropylene. I-block copolymer polypropylene inamayunithi e-co-monomer ahlelwe ngamabhulokhi (okungukuthi, ngephethini evamile) futhi aqukethe noma yikuphi... -
Yiziphi Izici Ze-Polyvinyl Chloride (PVC)?
Ezinye zezimpawu ezibaluleke kakhulu zePolyvinyl Chloride (PVC) yilezi: Ubuningi: I-PVC iminyene kakhulu uma iqhathaniswa neningi lamapulasitiki (amandla adonsela phansi azungeze u-1.4) Ezomnotho: I-PVC itholakala kalula futhi ishibhile. Ukuqina: I-PVC eqinile ifaneleka kahle ngokuqina nokuqina. Amandla: I-PVC eqinile inamandla amahle kakhulu okudonseka. I-Polyvinyl Chloride iyinto "ye-thermoplastic" (ngokungafani ne-"thermoset"), ehlobene nendlela ipulasitiki esabela ngayo ekushiseni. Izinto ze-Thermoplastic ziba uketshezi endaweni yazo yokuncibilika (ububanzi be-PVC phakathi kwama-degree Celsius aphansi kakhulu ayi-100 namanani aphezulu afana nama-degree Celsius angama-260). Isici esiwusizo esiyinhloko ngama-thermoplastic ukuthi angashiswa afike endaweni yawo yokuncibilika, apholiswe, futhi aphinde ashiswe futhi nge... -
Kuyini i-caustic soda?
Ohambweni olujwayelekile oluya esitolo esikhulu, abathengi bangase bathenge insipho, bathenge ibhodlela le-aspirin bese bebheka izihloko zakamuva emaphephandabeni nakomagazini. Uma uqala ukubona, kungase kubonakale sengathi lezi zinto azifani kakhulu. Kodwa-ke, ngayinye yazo, i-caustic soda idlala indima ebalulekile ohlwini lwezithako noma ezinqubweni zokukhiqiza. Iyini i-caustic soda? I-caustic soda iyinhlanganisela yamakhemikhali i-sodium hydroxide (NaOH). Le nhlanganisela iyi-alkali - uhlobo lwesisekelo esingaqeda ama-asidi futhi sincibilike emanzini. Namuhla i-caustic soda ingenziwa ngesimo sama-pellets, ama-flakes, ama-powder, izixazululo nokuningi. Isetshenziselwani i-caustic soda? I-caustic soda isibe isithako esivamile ekukhiqizweni kwezinto eziningi zansuku zonke. Ngokuvamile eyaziwa ngokuthi i-lye, isetshenziswe... -
Kungani i-Polypropylene isetshenziswa kaningi kangaka?
I-Polypropylene isetshenziswa kokubili ezisetshenziswa zasekhaya nasezimbonini. Izakhiwo zayo eziyingqayizivele kanye nekhono lokuzivumelanisa namasu ahlukahlukene okwenza izinto kuyenza ivelele njengezinto ezibalulekile zokusetshenziswa okubanzi. Esinye isici esibalulekile yikhono le-polypropylene lokusebenza njengezinto zepulasitiki kanye nefayibha (njengalezo zikhwama zokukhangisa ezinikezwa emicimbini, emijahweni, njll.). Ikhono eliyingqayizivele le-Polypropylene lokukhiqizwa ngezindlela ezahlukene kanye nezinhlelo zokusebenza ezahlukene lasho ukuthi ngokushesha yaqala ukuphonsela inselelo eziningi zezinto ezindala ezihlukile, ikakhulukazi embonini yokupakisha, ifayibha, kanye neyokubumba nge-injection. Ukukhula kwayo kuye kwaqhubeka iminyaka eminingi futhi isalokhu ingumdlali omkhulu embonini yepulasitiki emhlabeni jikelele. Kwa-Creative Mechanisms,... -
UChemdo wamenywa ukuba ahlanganyele engqungqutheleni ehlelwe ngokubambisana yi-Google kanye ne-Global Search.
Idatha ikhombisa ukuthi esimweni sokuthengiselana kwe-e-commerce yaseShayina ewela imingcele ngo-2021, ukuthengiselana kwe-B2B ewela imingcele kubalwe cishe ku-80%. Ngo-2022, amazwe azongena esigabeni esisha sokujwayela ubhubhane. Ukuze abhekane nomthelela wobhubhane, ukuqala kabusha komsebenzi nokukhiqiza sekuyinto evame kakhulu emabhizinisini angenisa nokuthumela impahla asekhaya nakwamanye amazwe. Ngaphezu kobhubhane, izici ezifana nokwenyuka kwamanani ezinto zokusetshenziswa okubangelwa ukungazinzi kwezepolitiki kwendawo, ukunyuka okukhulu kwemithwalo yemikhumbi, ukungeniswa okuvinjelwe emachwebeni okuya kuwo, kanye nokwehla kwenani lezimali ezihlobene okubangelwa ukwenyuka kwezinga lenzalo yedola laseMelika konke kunomthelela kuzo zonke izintambo zokuhweba kwamanye amazwe. Esimweni esinzima kangaka, i-Google kanye nomlingani wayo eShayina, iGlobal Sou, babambe umhlangano okhethekile... -
Ziyini izinhlayiya ze-PVC?
I-PVC ingenye yamapulasitiki asetshenziswa kakhulu embonini. I-Plasticol, inkampani yase-Italy eseduze neVarese ibilokhu ikhiqiza ama-granule e-PVC iminyaka engaphezu kwengu-50 manje futhi ulwazi oluqoqwe eminyakeni edlule luvumele ibhizinisi ukuthi lithole izinga elijulile lolwazi kangangokuthi manje singalisebenzisa ukwanelisa zonke izicelo zamakhasimende ezinikeza imikhiqizo emisha nethembekile. Iqiniso lokuthi i-PVC isetshenziswa kabanzi ekukhiqizeni izinto eziningi ezahlukene libonisa ukuthi izici zayo zangaphakathi ziwusizo kakhulu futhi zikhethekile. Ake siqale ukukhuluma ngokuqina kwe-PVC: impahla iqinile kakhulu uma ihlanzekile kodwa iba nezimo uma ixutshwe nezinye izinto. Lesi sici esihlukile senza i-PVC ifaneleke ekukhiqizeni imikhiqizo esetshenziswa emikhakheni ehlukene, kusukela esakhiweni esisodwa... -
I-glitter ebolayo ingaguqula imboni yezimonyo.
Ukuphila kugcwele ukupakishwa okukhazimulayo, amabhodlela ezimonyo, izitsha zezithelo nokunye okuningi, kodwa eziningi zazo zenziwe ngezinto ezinobuthi nezingenakusimama ezifaka isandla ekungcoleni kwepulasitiki. Muva nje, abacwaningi eNyuvesi yaseCambridge e-UK bathole indlela yokudala i-glitter eqhubekayo, engenabuthi futhi ebolayo evela ku-cellulose, isakhiwo esiyinhloko sezindonga zamaseli zezitshalo, izithelo nemifino. Amaphepha ahlobene ashicilelwe ephephabhukwini i-Nature Materials ngomhlaka-11. Yenziwe ngama-nanocrystals e-cellulose, le glitter isebenzisa umbala wesakhiwo ukushintsha ukukhanya ukuze ikhiqize imibala egqamile. Emvelweni, isibonelo, ukukhanya kwamaphiko e-butterfly kanye nezimpaphe ze-peacock kuyizinto ezinhle kakhulu zombala wesakhiwo, ongeke uphele ngemva kwekhulu leminyaka. Ngokusebenzisa amasu okuzihlanganisa, i-cellulose ingakhiqiza ... -
Iyini i-Polyvinyl chloride (PVC) paste Resin?
I-Polyvinyl chloride (PVC) paste Resin, njengoba igama lisho, ukuthi le resin isetshenziswa kakhulu ngesimo se-paste. Abantu bavame ukusebenzisa lolu hlobo lwe-paste njenge-plastisol, okuyisimo esiyingqayizivele se-PVC plastic esimweni sayo esingacutshungulwanga. Ama-resin e-paste avame ukulungiswa ngezindlela ze-emulsion kanye ne-micro-suspension. I-Polyvinyl chloride paste resin inosayizi omncane wezinhlayiya, futhi ukuthungwa kwayo kufana ne-talc, futhi ayishukumi. I-polyvinyl chloride paste resin ixutshwa ne-Plasticizer bese ivuselelwa ukuze kwakhiwe i-suspension eqinile, ebese yenziwa i-PVC paste, noma i-PVC plastisol, i-PVC sol, futhi yilolu hlobo lapho abantu besetshenziswa khona ukucubungula imikhiqizo yokugcina. Enkambisweni yokwenza i-paste, ama-filler ahlukahlukene, ama-diluent, ama-heat stabilizer, ama-foaming agent kanye nama-light stabilizer ayangezwa ngokuya nge ... -
Iyini i-PP Films?
IZAKHIWO I-Polypropylene noma i-PP iyi-thermoplastic eshibhile ecacile kakhulu, icwebezela kakhulu futhi inamandla amahle okubamba. Inephuzu lokuncibilika eliphakeme kune-PE, okwenza ifaneleke ezinhlelweni ezidinga ukuhlanza emazingeni okushisa aphezulu. Iphinde ibe nomswakama omncane kanye nokukhanya okuphezulu. Ngokuvamile, izakhiwo zokuvala ukushisa ze-PP azilungile njengeze-LDPE. I-LDPE inamandla okudabuka angcono kanye nokumelana nokushisa okuphansi. I-PP ingashintshwa ngensimbi okuholela ezimpahleni ezithuthukisiwe zokuvimba igesi zezinhlelo zokusebenza ezidinga kakhulu lapho isikhathi eside somkhiqizo sibalulekile. Amafilimu e-PP afaneleka kahle ezinhlobonhlobo zezinhlelo zokusebenza zezimboni, zabathengi, nezezimoto. I-PP ingaphinde isetshenziswe ngokugcwele futhi ingacutshungulwa kalula ibe eminye imikhiqizo eminingi yezinhlelo zokusebenza eziningi ezahlukene. Kodwa-ke, ngaphandle... -
Iyini i-PVC compound?
Ama-compound e-PVC asekelwe ekuhlanganisweni kwe-PVC polymer RESIN kanye nezithasiselo ezinikeza ukwakheka okudingekayo ekusetshenzisweni kokugcina (Amapayipi noma Amaphrofayili Aqinile noma Amaphrofayili Aguquguqukayo noma Amashidi). I-compound yakhiwa ngokuhlanganisa izithako ngokuseduze, okuthi kamuva iguqulwe ibe yinto "ehlanganisiwe" ngaphansi kwethonya lokushisa namandla okusika. Kuye ngohlobo lwe-PVC kanye nezithasiselo, i-compound ngaphambi kokufakwa kwe-gel ingaba yimpuphu egeleza ngokukhululeka (eyaziwa ngokuthi ingxube eyomile) noma uketshezi ngesimo se-paste noma isixazululo. Ama-compound e-PVC lapho ehlanganiswa, kusetshenziswa ama-plasticizer, abe izinto eziguquguqukayo, ngokuvamile ezibizwa ngokuthi i-PVC-P. Ama-compound e-PVC lapho ehlanganiswa ngaphandle kwe-plasticizer yezicelo eziqinile abizwa ngokuthi i-PVC-U. I-PVC Compounding ingafingqwa kanje: I-PVC dr... -
Umehluko Phakathi Kwezikhwama ze-BOPP, i-OPP kanye ne-PP.
Imboni yokudla isebenzisa kakhulu ukupakishwa kwepulasitiki ye-BOPP. Izikhwama ze-BOPP kulula ukuziphrinta, ukuzimboza kanye nokuzifaka i-laminate okwenza zifaneleke emikhiqizweni yokupakisha njengemikhiqizo emisha, amaswidi kanye nokudla okulula. Kanye nezikhwama ze-BOPP, i-OPP, kanye ne-PP nazo zisetshenziselwa ukupakishwa. I-Polypropylene iyi-polymer evamile phakathi kwezintathu ezisetshenziselwa ukukhiqiza izikhwama. I-OPP imele i-Oriented Polypropylene, i-BOPP imele i-Biaxially Oriented Polypropylene kanye ne-PP imele i-Polypropylene. Zontathu zihlukile ngesitayela sazo sokwenziwa. I-Polypropylene eyaziwa nangokuthi i-polypropene iyi-polymer ye-thermoplastic semi-crystalline. Iqinile, inamandla futhi inokumelana okukhulu komthelela. Izikhwama ezimile, izikhwama ze-spout kanye nezikhwama ze-ziplock zenziwe nge-polypropylene. Kunzima kakhulu ukuhlukanisa phakathi kwe-OPP, i-BOPP kanye ne-PP plas...