Iindaba zeShishini
-
Zeziphi iikhemikhali ezithunyelwe yiTshayina eThailand?
Uphuhliso lwemarike yeekhemikhali yaseMzantsi-mpuma Asia lusekelwe kwiqela elikhulu labathengi, abasebenzi abangabizi kakhulu, kunye nemigaqo-nkqubo ekhululekileyo. Abanye abantu abakwishishini bathi imeko yangoku yemarike yeekhemikhali yaseMzantsi-mpuma Asia ifana kakhulu neyaseTshayina ngeminyaka yoo-1990. Ngamava ophuhliso olukhawulezileyo lweshishini leekhemikhali laseTshayina, indlela yophuhliso lwemarike yaseMzantsi-mpuma Asia iye yacaca ngakumbi. Ke ngoko, kukho amashishini amaninzi ajonge phambili andisa ngenkuthalo ishishini leekhemikhali laseMzantsi-mpuma Asia, njengekhonkco leshishini le-epoxy propane kunye nekhonkco leshishini le-propylene, kwaye andisa utyalo-mali lwawo kwimarike yaseVietnam. (1) I-Carbon black yeyona khemikhali inkulu ethunyelwa ngaphandle eTshayina ukuya eThailand Ngokwezibalo zedatha yesithethe, ubungakanani be-carbon bla... -
Ukwanda okukhulu kwimveliso yasekhaya ene-high-voltage kunye nokuncitshiswa komahluko wexabiso elithe ngqo
Ukususela ngo-2020, izityalo ze-polyethylene zasekhaya zingene kumjikelo wokwandiswa okuphakathi, kwaye amandla okuvelisa ngonyaka we-PE yasekhaya anyuke ngokukhawuleza, ngesantya sokukhula sonyaka esiphakathi esingaphezulu kwe-10%. Imveliso ye-polyethylene eveliswe ekhaya inyuke ngokukhawuleza, kunye nokuhlanganiswa okukhulu kwemveliso kunye nokhuphiswano olukhulu kwimarike ye-polyethylene. Nangona imfuno ye-polyethylene ikwabonakalise umkhwa wokukhula kwiminyaka yakutshanje, ukukhula kwemfuno akukhange kube ngokukhawuleza njengesantya sokukhula kobonelelo. Ukususela ngo-2017 ukuya ku-2020, amandla amatsha okuvelisa i-polyethylene yasekhaya agxile kakhulu kwiindidi ze-voltage ephantsi kunye ne-linear, kwaye bekungekho zixhobo ze-voltage ephezulu ezisetyenzisiweyo eTshayina, nto leyo ebangele ukusebenza kakuhle kwimarike ye-voltage ephezulu. Ngo-2020, njengoko amaxabiso ayehluka... -
Ikamva: gcina ukuguquguquka koluhlu, uhlele kwaye ulandele ulwalathiso lomphezulu weendaba
Ngomhla we-16 kuMeyi, ikhontrakthi yeLiansu L2309 yavulwa kwi-7748, ngexabiso elincinci le-7728, ixabiso eliphezulu le-7805, kunye nexabiso lokuvala le-7752. Xa kuthelekiswa nosuku lwangaphambili lorhwebo, yanda ngama-23 okanye i-0.30%, ngexabiso lokuhlawula le-7766 kunye nexabiso lokuvala le-7729. Uluhlu lwe-2309 lweLiansu lwatshintshatshintsha, ngokuncipha okuncinci kwezikhundla kunye nokuvalwa komgca olungileyo. Le ndlela yacinezelwa ngaphezulu komndilili ohambayo we-MA5, kwaye ibha eluhlaza ngaphantsi kwesalathisi se-MACD yehla; Ngokwembono yesalathisi se-BOLL, into ye-K-line iyaphambuka kumzila ongezantsi kwaye iziko lomxhuzulane litshintshela phezulu, ngelixa isibonakaliso se-KDJ sinolindelo olude lokwakheka kwesignali. Kusenokubakho indlela yokunyuka komgangatho kwimolding eqhubekayo yexesha elifutshane, elinde ulwalathiso oluvela kwi-n... -
Ziziphi iintlobo ezahlukeneyo zePolyethylene?
I-Polyethylene idla ngokwahlulahlulwa ibe yenye yeekhompawundi eziphambili ezininzi, ezona zixhaphakileyo ziquka i-LDPE, i-LLDPE, i-HDPE, kunye ne-Ultrahigh Molecular Weight Polypropylene. Ezinye iintlobo ziquka i-Medium Density Polyethylene (MDPE), i-Ultra-low-molecular-weight polyethylene (ULMWPE okanye i-PE-WAX), i-High-molecular-weight polyethylene (HMWPE), i-High-density cross-linked polyethylene (HDXLPE), i-Cross-linked polyethylene (PEX okanye i-XLPE), i-Very-low-density polyethylene (VLDPE), kunye ne-Chlorinated polyethylene (CPE). I-Low-Density Polyethylene (LDPE) sisixhobo esiguquguqukayo kakhulu esineempawu zokugeleza ezikhethekileyo ezenza ukuba ifaneleke ngakumbi kwiingxowa zokuthenga nakwezinye iifilimu zeplastiki. I-LDPE ine-ductility ephezulu kodwa amandla okuxinana aphantsi, nto leyo ibonakala kwihlabathi lokwenyani ngokuthanda kwayo ukolula xa... -
Umthamo wokuvelisa i-titanium dioxide kulo nyaka uza kwaphula iitoni ezizigidi ezi-6!
Ukususela nge-30 kaMatshi ukuya ku-1 ka-Epreli, iNkomfa yoNyaka yeSizwe yeTitanium Dioxide yowama-2022 ibibanjelwe eChongqing. Kwafunyaniswa kwintlanganiso ukuba imveliso kunye nomthamo wemveliso ye-titanium dioxide iya kuqhubeka ikhula ngo-2022, kwaye uxinzelelo lomthamo wemveliso luya kwanda ngakumbi; kwangaxeshanye, ubungakanani babavelisi abakhoyo buya kwanda ngakumbi kwaye iiprojekthi zotyalo-mali ngaphandle koshishino ziya kwanda, nto leyo eya kukhokelela ekunqongophaleni kobonelelo lwe-titanium ore. Ukongeza, ngokunyuka koshishino olutsha lwezinto zebhetri yamandla, ukwakhiwa okanye ukulungiswa kwenani elikhulu leeprojekthi ze-iron phosphate okanye i-lithium iron phosphate kuya kukhokelela ekunyukeni komthamo wemveliso ye-titanium dioxide kwaye kuqinise ukungqubana phakathi kobonelelo kunye nemfuno ye-titani... -
Yintoni iFilimu yePolypropylene Overwrap ejongene neBiaxial Oriented?
Ifilimu ye-polypropylene (BOPP) ejongeka kwi-Biaxially luhlobo lwefilimu yokupakisha eguquguqukayo. Ifilimu ye-polypropylene ejongeka kwi-Biaxially yolulwe kwiindlela zomatshini kunye nezinqamlezileyo. Oku kubangela ukujongwa kwe-molecular chain kuzo zombini iindlela. Olu hlobo lwefilimu yokupakisha eguquguqukayo lwenziwa ngenkqubo yokuvelisa ityhubhu. Iqamza lefilimu elimile okwetyhubhu liyafuthwa kwaye lifudunyezwe lifikelele kwinqanaba lalo lokuthamba (oku kwahlukile kwinqanaba lokunyibilika) kwaye lolulwe ngoomatshini. Ifilimu yolulwe phakathi kwe-300% - 400%. Kungenjalo, ifilimu inokolulwa ngenkqubo eyaziwa ngokuba yi-tenter-frame film manufacturing. Ngale ndlela, iipolymers zikhutshelwa kwi-cooled cast roll (eyaziwa ngokuba yi-base sheet) kwaye zitsalwe kwicala lomatshini. Ifilimu ye-tenter-frame manufacturing us... -
Umthamo wokuthunyelwa kwamanye amazwe unyuke kakhulu ukususela ngoJanuwari ukuya kuFebruwari 2023.
Ngokwezibalo zedatha yezerhafu: ukususela ngoJanuwari ukuya kuFebruwari 2023, umthamo we-PE yasekhaya yokuthumela ngaphandle yi-112,400 yeetoni, kuquka iitoni ezingama-36,400 ze-HDPE, iitoni ezingama-56,900 ze-LDPE, kunye neetoni ezili-19,100 ze-LLDPE. Ukususela ngoJanuwari ukuya kuFebruwari, umthamo we-PE yasekhaya yokuthumela ngaphandle unyuke ngeetoni ezingama-59,500 xa kuthelekiswa nexesha elifanayo ngo-2022, ukwanda kwe-112.48%. Ukusuka kwitshathi engentla, sinokubona ukuba umthamo wokuthumela ngaphandle ukusuka ngoJanuwari ukuya kuFebruwari unyuke kakhulu xa kuthelekiswa nexesha elifanayo ngo-2022. Ngokweenyanga, umthamo wokuthumela ngaphandle ngoJanuwari 2023 unyuke ngeetoni ezili-16,600 xa kuthelekiswa nexesha elifanayo kunyaka ophelileyo, kwaye umthamo wokuthumela ngaphandle ngoFebruwari unyuke ngeetoni ezingama-40,900 xa kuthelekiswa nexesha elifanayo kunyaka ophelileyo; ngokweentlobo ngeentlobo, umthamo wokuthumela ngaphandle we-LDPE (ngoJanuwari-Februwari) wawuziitoni ezingama-36,400, i... -
Ezona zicelo ziphambili zePVC.
1. Iiprofayili zePVC Iiprofayili zePVC zezona ndawo zinkulu zokusetyenziswa kwePVC eTshayina, zimalunga ne-25% yokusetyenziswa kwePVC iyonke. Zisetyenziswa kakhulu ekwenzeni iingcango neefestile kunye nezinto zokonga umbane, kwaye umthamo wazo wokusetyenziswa usakhula kakhulu kuzwelonke. Kumazwe aphuhlileyo, isabelo semarike seengcango neefestile zeplastiki sikwaphambili, njenge-50% eJamani, i-56% eFransi, kunye ne-45% eMelika. 2. Umbhobho wePVC Phakathi kweemveliso ezininzi zePVC, iipayipi zePVC zezona ndawo zimbini zisetyenziswa kakhulu, zimalunga ne-20% yokusetyenziswa kwazo. ETshayina, iipayipi zePVC zenziwa ngaphambi kweepayipi zePE kunye neepayipi zePP, zineentlobo ngeentlobo, ukusebenza kakuhle kunye noluhlu olubanzi lokusetyenziswa, zithatha indawo ebalulekileyo kwimarike. 3. Ifilimu yePVC... -
Iintlobo ze-polypropylene.
Iimolekyuli zePolypropylene ziqulathe amaqela e-methyl, anokwahlulwa abe yi-isotactic polypropylene, i-atactic polypropylene kunye ne-syndiotactic polypropylene ngokwendlela amaqela e-methyl ahlelwe ngayo. Xa amaqela e-methyl ebekwe kwicala elinye le-main chain, ibizwa ngokuba yi-isotactic polypropylene; ukuba amaqela e-methyl asasazwa ngokungacwangciswanga kumacala omabini e-main chain, ibizwa ngokuba yi-atactic polypropylene; xa amaqela e-methyl ebekwe ngokwahlukeneyo kumacala omabini e-main chain, ibizwa ngokuba yi-syndiotactic. polypropylene. Kwimveliso ngokubanzi ye-polypropylene resin, umxholo wesakhiwo se-isotactic (esibizwa ngokuba yi-isotacticity) umalunga ne-95%, kwaye okuseleyo yi-atactic okanye i-syndiotactic polypropylene. I-polypropylene resin eyenziwayo ngoku eTshayina ihlelwe ngokwe... -
Ukusetyenziswa kwe-resin ye-pvc yokuncamathisela.
Kuqikelelwa ukuba ngo-2000, ukusetyenziswa okupheleleyo kwemarike ye-PVC paste resin yehlabathi bekumalunga ne-1.66 yezigidi zeetoni. E-China, i-PVC paste resin ikakhulu inezicelo ezilandelayo: Ishishini lesikhumba sokwenziwa: ukubonelela ngemarike iyonke kunye nokulinganisela kwemfuno. Nangona kunjalo, xa ichaphazeleka kukuphuhliswa kwesikhumba se-PU, imfuno yesikhumba sokwenziwa eWenzhou nakwezinye iindawo eziphambili zokusetyenziswa kwe-paste resin ixhomekeke kwimida ethile. Ukhuphiswano phakathi kwesikhumba se-PU kunye nesikhumba sokwenziwa lunamandla. Ishishini lesikhumba somgangatho: Lichaphazeleka kukuncipha kwemfuno yesikhumba somgangatho, imfuno ye-paste resin kweli shishini iye yehla minyaka le kwiminyaka yakutshanje. Ishishini lezinto zeglavu: imfuno inkulu kakhulu, ikakhulu ingeniswa kwamanye amazwe, eyokucutshungulwa kwe-mate ebonelelweyo... -
Ukusetyenziswa kwe-caustic soda kubandakanya iinkalo ezininzi.
I-Caustic soda ingahlulwa ibe yi-flake soda, i-granular soda kunye ne-solid soda ngokwemo yayo. Ukusetyenziswa kwe-caustic soda kubandakanya iinkalo ezininzi, oku kulandelayo kukwazisa ngeenkcukacha: 1. I-petroleum ecociweyo. Emva kokuhlanjwa nge-sulfuric acid, iimveliso zepetroleum zisenazo ezinye izinto ezine-asidi, ekufuneka zihlanjwe ngesisombululo se-sodium hydroxide kwaye emva koko zihlanjwe ngamanzi ukuze kufunyanwe iimveliso ezicociweyo. 2. ukuprinta kunye nokudaya Isetyenziswa kakhulu kwiidayi ze-indigo kunye needayi ze-quinone. Kwinkqubo yokudaya iidayi ze-vat, isisombululo se-caustic soda kunye ne-sodium hydrosulfite kufuneka zisetyenziswe ukuzinciphisa zibe yi-leuco acid, kwaye emva koko zifakwe kwimo yokuqala yokunganyibiliki ngee-oxidants emva kokudaya. Emva kokuba ilaphu lekotoni liphathwe ngesisombululo se-caustic soda, i-wax, i-grease, i-starch kunye nezinye izinto ... -
Ukubuyiselwa kwemfuno yePVC kwihlabathi liphela kuxhomekeke eTshayina.
Ukungena ngo-2023, ngenxa yemfuno ecothayo kwiindawo ezahlukeneyo, imakethi ye-polyvinyl chloride (PVC) yehlabathi isajongene nokungaqiniseki. Ngexesha elininzi lowama-2022, amaxabiso e-PVC e-Asia nase-United States abonise ukwehla okukhulu kwaye ehla ngaphambi kokungena ngo-2023. Ukungena ngo-2023, phakathi kweendawo ezahlukeneyo, emva kokuba i-China ilungise imigaqo-nkqubo yayo yokuthintela nokulawula ubhubhane, imakethi ilindele ukuphendula; i-United States inokunyusa ngakumbi amazinga enzala ukuze ilwe nokunyuka kwamaxabiso kwaye inciphise imfuno ye-PVC yasekhaya e-United States. I-Asia, ekhokelwa yi-China, kunye ne-United States zandise ukuthunyelwa kwe-PVC ngaphandle phakathi kwemfuno ebuthathaka yehlabathi. Ngokuphathelele iYurophu, lo mmandla usaza kujongana nengxaki yamaxabiso aphezulu amandla kunye nokwehla kwamandla emali, kwaye mhlawumbi akuyi kubakho kubuyiselwa okuzinzileyo kwimida yenzuzo kushishino. ...