Izindaba Zemboni
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Yimaphi amakhemikhali athunyelwe yiShayina eThailand?
Ukuthuthukiswa kwemakethe yamakhemikhali yaseNingizimu-mpumalanga ye-Asia kusekelwe eqenjini elikhulu labathengi, abasebenzi abangabizi kakhulu, kanye nezinqubomgomo ezikhululekile. Abanye abantu embonini bathi indawo yamanje yemakethe yamakhemikhali eNingizimu-mpumalanga ye-Asia ifana kakhulu neyaseShayina ngawo-1990. Ngolwazi lokuthuthukiswa okusheshayo kwemboni yamakhemikhali yaseShayina, ukuthambekela kokuthuthukiswa kwemakethe yamakhemikhali yaseNingizimu-mpumalanga ye-Asia kuye kwacaca kakhulu. Ngakho-ke, kunezinkampani eziningi ezibheke phambili ezikhulisa ngenkuthalo imboni yamakhemikhali yaseNingizimu-mpumalanga ye-Asia, njengeketanga lemboni ye-epoxy propane kanye neketanga lemboni ye-propylene, kanye nokwandisa ukutshalwa kwezimali kwazo emakethe yaseVietnam. (1) I-Carbon black iyikhemikhali enkulu kunazo zonke ethunyelwa ngaphandle kweShayina iya eThailand Ngokusho kwezibalo zedatha yamasiko, isilinganiso se-carbon bla... -
Ukwanda okukhulu ekukhiqizweni kwamandla kagesi aphezulu ekhaya kanye nokuncipha komehluko wentengo eqondile
Kusukela ngo-2020, izitshalo ze-polyethylene zasekhaya zingene emjikelezweni wokwanda ophakathi, futhi amandla okukhiqiza wonyaka we-PE yasekhaya akhuphuke ngokushesha, ngesilinganiso sokukhula sonyaka esimaphakathi esingaphezu kuka-10%. Ukukhiqizwa kwe-polyethylene ekhiqizwe ekhaya kukhuphuke ngokushesha, ngokuhlanganiswa okukhulu komkhiqizo kanye nokuncintisana okukhulu emakethe ye-polyethylene. Nakuba isidingo se-polyethylene sibonise ukuthambekela kokukhula eminyakeni yamuva nje, ukukhula kwesidingo akubanga ngokushesha njengesilinganiso sokukhula kokuhlinzekwa. Kusukela ngo-2017 kuya ku-2020, amandla okukhiqiza amasha e-polyethylene yasekhaya agxile kakhulu ezinhlotsheni ezinama-voltage aphansi kanye neziqondile, futhi kwakungekho madivayisi ane-voltage ephezulu asetshenziswa eShayina, okwaholela ekusebenzeni okuqinile emakethe ene-voltage ephezulu. Ngo-2020, njengoba intengo yanda... -
Ikusasa: gcina ukushintshashintsha kwebanga, hlela futhi ulandele isiqondiso sezindaba
Ngomhlaka-16 Meyi, inkontileka ye-Liansu L2309 yavulwa ku-7748, ngentengo encane engu-7728, intengo ephezulu engu-7805, kanye nentengo yokuvala engu-7752. Uma kuqhathaniswa nosuku lokuhweba olwedlule, yanda ngo-23 noma u-0.30%, ngentengo yokuxazulula engu-7766 kanye nentengo yokuvala engu-7729. Uhla lwe-2309 lwe-Liansu lwashintshashintsha, ngokuncipha okuncane kwezikhundla kanye nokuvalwa komugqa omuhle. Umkhuba wacindezelwa ngaphezu kwesilinganiso sokuhamba se-MA5, kanti ibha eluhlaza ngaphansi kwesibonakaliso se-MACD yehlile; Ngokombono wesibonakaliso se-BOLL, inhlangano ye-K-line iyaphambuka emgqeni ongezansi kanti isikhungo samandla adonsela phansi siya phezulu, kuyilapho isibonakaliso se-KDJ sinolindelo olude lokwakheka kwesignali. Kusengenzeka ukuthi kube nomkhuba okhuphukayo ekubunjweni okuqhubekayo kwesikhathi esifushane, silinde isiqondiso esivela ku-n... -
Yiziphi izinhlobo ezahlukene ze-polyethylene?
I-Polyethylene ivame ukuhlukaniswa ibe yinye yamakhemikhali amakhulu amaningana, avame kakhulu afaka i-LDPE, i-LLDPE, i-HDPE, kanye ne-Ultrahigh Molecular Weight Polypropylene. Ezinye izinhlobo zifaka i-Medium Density Polyethylene (MDPE), i-Ultra-low-molecular-weight polyethylene (ULMWPE noma i-PE-WAX), i-High-molecular-weight polyethylene (HMWPE), i-High-density cross-linked polyethylene (HDXLPE), i-Cross-linked polyethylene (PEX noma i-XLPE), i-Very-low-density polyethylene (VLDPE), kanye ne-Chlorinated polyethylene (CPE). I-Low-Density Polyethylene (LDPE) iyinto eguquguqukayo kakhulu enezakhiwo zokugeleza ezihlukile ezenza ifaneleke kakhulu ezikhwameni zokuthenga nakwezinye izinhlelo zokusebenza zefilimu yepulasitiki. I-LDPE ine-ductility ephezulu kodwa amandla aphansi okudonseka, okubonakala ezweni langempela ngokuthambekela kwayo kokwelula lapho... -
Umthamo wokukhiqiza we-titanium dioxide walo nyaka uzodlula amathani ayizigidi eziyisithupha!
Kusukela mhla zingama-30 kuNdasa kuya ku-1 kuMbasa, iNgqungquthela Yonyaka Kazwelonke Yemboni Ye-Titanium Dioxide ka-2022 yabanjwa eChongqing. Kwatholakala emhlanganweni ukuthi umkhiqizo kanye namandla okukhiqiza e-titanium dioxide kuzoqhubeka nokukhula ngo-2022, futhi ukuhlushwa kwamandla okukhiqiza kuzokhula kakhulu; ngesikhathi esifanayo, ubukhulu babakhiqizi abakhona buzokhula kakhulu futhi amaphrojekthi okutshala imali ngaphandle kwemboni azokhula, okuzoholela ekushodeni kokuhlinzekwa kwe-titanium ore. Ngaphezu kwalokho, ngokukhula kwemboni yezinto ezintsha zebhethri lamandla, ukwakhiwa noma ukulungiswa kwenani elikhulu lamaphrojekthi e-iron phosphate noma i-lithium iron phosphate kuzoholela ekukhuleni kwamandla okukhiqiza i-titanium dioxide futhi kuqinise ukuphikisana phakathi kokunikezwa kanye nesidingo se-titani... -
Iyini ifilimu ye-polypropylene overwrap eqondiswe kabili?
Ifilimu ye-polypropylene (BOPP) eqondiswe ku-Biaxial uhlobo lwefilimu yokupakisha eguquguqukayo. Ifilimu ye-polypropylene eqondiswe ku-Biaxial inwetshwa emshinini naseziqondisweni eziphambeneyo. Lokhu kuphumela ekuqondeni kwe-molecular chain kuzo zombili izinhlangothi. Lolu hlobo lwefilimu yokupakisha eguquguqukayo lwenziwa ngenqubo yokukhiqiza i-tubular. Ibhamuza lefilimu elibunjwe ngethubhu liyafuthwa futhi lishiswe lifike endaweni yalo yokuthambisa (lokhu kuhlukile endaweni yokuncibilika) futhi linwetshwa ngemishini. Ifilimu inwetshwa phakathi kuka-300% - 400%. Ngaphandle kwalokho, ifilimu inganwetshwa ngenqubo eyaziwa ngokuthi ukukhiqizwa kwefilimu ye-tenter-frame. Ngale ndlela, ama-polymer akhishwa ku-cast cast roll epholile (eyaziwa nangokuthi ishidi lesisekelo) bese edonswa eceleni kwendlela yomshini. Ifilimu ye-tenter-frame isenza... -
Umthamo wokuthunyelwa kwamanye amazwe ukhuphuke kakhulu kusukela ngoJanuwari kuya kuFebhuwari 2023.
Ngokwezibalo zedatha yentela: kusukela ngoJanuwari kuya kuFebhuwari 2023, umthamo wokuthunyelwa kwe-PE yasekhaya ungamathani ayi-112,400, kufaka phakathi amathani angama-36,400 e-HDPE, amathani angama-56,900 e-LDPE, kanye namathani ayi-19,100 e-LLDPE. Kusukela ngoJanuwari kuya kuFebhuwari, umthamo wokuthunyelwa kwe-PE yasekhaya ukhuphuke ngamathani angama-59,500 uma kuqhathaniswa nesikhathi esifanayo ngo-2022, ukwanda ngo-112.48%. Kusukela eshadini elingenhla, singabona ukuthi umthamo wokuthunyelwa kwempahla kusukela ngoJanuwari kuya kuFebhuwari ukhuphuke kakhulu uma kuqhathaniswa nesikhathi esifanayo ngo-2022. Ngokwezinyanga, umthamo wokuthunyelwa kwempahla ngoJanuwari 2023 ukhuphuke ngamathani ayi-16,600 uma kuqhathaniswa nesikhathi esifanayo ngonyaka odlule, kanti umthamo wokuthunyelwa kwempahla ngoFebhuwari ukhuphuke ngamathani angama-40,900 uma kuqhathaniswa nesikhathi esifanayo ngonyaka odlule; ngokwezinhlobo, umthamo wokuthunyelwa kwe-LDPE (Januwari-Febhuwari) wawungamathani angama-36,400, ye... -
Izicelo eziyinhloko ze-PVC.
1. Amaphrofayili e-PVC Amaphrofayili e-PVC namaphrofayili yizindawo ezinkulu kakhulu zokusetshenziswa kwe-PVC eShayina, abiza cishe u-25% wokusetshenziswa kwe-PVC iyonke. Asetshenziswa kakhulu ukwenza iminyango namafasitela nezinto zokonga amandla, futhi umthamo wokusetshenziswa kwawo usakhula kakhulu ezweni lonke. Emazweni athuthukile, isabelo semakethe seminyango namafasitela epulasitiki naso sihamba phambili, njenge-50% eJalimane, i-56% eFrance, kanye ne-45% e-United States. 2. Ipayipi le-PVC Phakathi kwemikhiqizo eminingi ye-PVC, amapayipi e-PVC ayinsimu yesibili ngobukhulu yokusetshenziswa, abiza cishe u-20% wokusetshenziswa kwawo. EShayina, amapayipi e-PVC athuthukiswa ngaphambi kwamapayipi e-PE namapayipi e-PP, anezinhlobo eziningi, ukusebenza okuhle kakhulu kanye nobubanzi bokusetshenziswa, athatha isikhundla esibalulekile emakethe. 3. Ifilimu le-PVC... -
Izinhlobo ze-polypropylene.
Ama-molecule e-polypropylene aqukethe amaqembu e-methyl, angahlukaniswa abe yi-isotactic polypropylene, i-atactic polypropylene kanye ne-syndiotactic polypropylene ngokwendlela amaqembu e-methyl ahlelwe ngayo. Lapho amaqembu e-methyl ehlelwe ohlangothini olufanayo lwe-main chain, ibizwa ngokuthi i-isotactic polypropylene; uma amaqembu e-methyl esatshalaliswa ngokungahleliwe kuzo zombili izinhlangothi ze-main chain, ibizwa ngokuthi i-atactic polypropylene; lapho amaqembu e-methyl ehlelwe ngokushintshana kuzo zombili izinhlangothi ze-main chain, ibizwa ngokuthi i-syndiotactic. polypropylene. Ekukhiqizweni okuvamile kwe-polypropylene resin, okuqukethwe kwesakhiwo se-isotactic (esibizwa ngokuthi i-isotacticity) cishe kungama-95%, kanti okusele kuyi-atactic noma i-syndiotactic polypropylene. I-polypropylene resin ekhiqizwa eShayina njengamanje ihlukaniswa ngokwe... -
Ukusetshenziswa kwe-resin ye-pvc yokunamathisela.
Kulinganiselwa ukuthi ngo-2000, ukusetshenziswa okuphelele kwemakethe yomhlaba wonke ye-PVC paste resin kwakungaba yizigidi eziyi-1.66 zamathani. EShayina, i-PVC paste resin inalezi zicelo ezilandelayo: Imboni yesikhumba sokwenziwa: imakethe iyonke ibhalansi yokuhlinzekwa kanye nesidingo. Kodwa-ke, uma ithinteka yintuthuko yesikhumba se-PU, isidingo sesikhumba sokwenziwa eWenzhou nakwezinye izindawo ezinkulu zokusetshenziswa kwe-paste resin singaphansi kwemikhawulo ethile. Umncintiswano phakathi kwesikhumba se-PU nesikhumba sokwenziwa unamandla kakhulu. Imboni yesikhumba saphansi: Uma ithinteka yisidingo esinciphayo sesikhumba saphansi, isidingo se-paste resin kule mboni besilokhu sincipha unyaka nonyaka eminyakeni yamuva. Imboni yezinto ezisetshenziswa ngamagilavu: isidingo sikhulu kakhulu, ikakhulukazi singeniswa kwamanye amazwe, esingesokucutshungulwa kwempahla enikeziwe... -
Ukusetshenziswa kwe-caustic soda kuhilela imikhakha eminingi.
I-Caustic soda ingahlukaniswa ibe yi-flake soda, i-granular soda kanye ne-solid soda ngokwesimo sayo. Ukusetshenziswa kwe-caustic soda kuhilela amasimu amaningi, okulandelayo yisingeniso esiningiliziwe kuwe: 1. I-petroleum ehlungiwe. Ngemva kokugezwa nge-sulfuric acid, imikhiqizo ye-petroleum isenazo ezinye izinto ezine-acidic, okumele zigezwe ngesisombululo se-sodium hydroxide bese zigezwa ngamanzi ukuze kutholakale imikhiqizo ehlungiwe. 2. ukuphrinta nokudaya Kusetshenziswa kakhulu kumadayi e-indigo kanye namadayi e-quinone. Enqubweni yokudaya amadayi e-vat, isisombululo se-caustic soda kanye ne-sodium hydrosulfite kufanele kusetshenziswe ukuze kuncishiswe kube yi-leuco acid, bese ku-oxidized ibe sesimweni sokuqala sokungancibiliki ngama-oxidants ngemva kokudaya. Ngemva kokuba indwangu yekotini iphathwe ngesisombululo se-caustic soda, i-wax, i-grease, i-starch nezinye izinto ... -
Ukubuyiselwa kwesidingo se-PVC emhlabeni wonke kuncike eShayina.
Njengoba singena ngo-2023, ngenxa yesidingo esicothayo ezifundeni ezahlukene, imakethe yomhlaba wonke ye-polyvinyl chloride (PVC) isabhekene nokungaqiniseki. Phakathi nengxenye enkulu ka-2022, amanani e-PVC e-Asia nase-United States abonise ukwehla okukhulu futhi ehla ngaphambi kokungena ngo-2023. Njengoba singena ngo-2023, phakathi kwezifunda ezahlukene, ngemuva kokuba i-China ilungise izinqubomgomo zayo zokuvimbela nokulawula ubhubhane, imakethe ilindele ukuphendula; i-United States ingakhuphula amazinga enzalo ukuze ilwe nokwehla kwamandla emali futhi inciphise isidingo se-PVC sasekhaya e-United States. I-Asia, eholwa yi-China, kanye ne-United States bandise ukuthunyelwa kwe-PVC phakathi kwesidingo esibuthakathaka somhlaba wonke. Ngokuphathelene ne-Europe, lesi sifunda sisazobhekana nenkinga yamanani aphezulu amandla kanye nokwehla kwamandla emali, futhi cishe ngeke kube nokululama okuqhubekayo emalini yenzuzo yemboni. ...