Iindaba zeShishini
-
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. ... -
Iyintoni impembelelo yenyikima enamandla eTurkey kwi-polyethylene?
ITurkey lilizwe elijikeleze iAsia neYurophu. Lityebile kwimithombo yezimbiwa, igolide, amalahle kunye nezinye izixhobo, kodwa alinazo izixhobo zeoyile kunye negesi yendalo. Ngentsimbi ye-18:24 nge-6 kaFebruwari, ngexesha laseBeijing (nge-13:24 nge-6 kaFebruwari, ixesha lendawo), inyikima enkulu ye-7.8 yenzekile eTurkey, enobunzulu obuphambili beekhilomitha ezingama-20 kunye ne-epicenter kwi-38.00 degrees latitude emantla kunye ne-37.15 degrees longitude empuma. I-epicenter yayikumzantsi weTurkey, kufutshane nomda weSyria. Amazibuko aphambili kwi-epicenter nakwimimandla engqongileyo yayiyiCeyhan (Ceyhan), Isdemir (Isdemir), kunye neYumurtalik (Yumurtalik). ITurkey neTshayina zinobudlelwane bezorhwebo beplastiki obude. Ukungeniswa kwe-polyethylene yaseTurkey kwilizwe lam kuncinci kwaye kuncipha unyaka nonyaka, kodwa umthamo wokuthumela ngaphandle uyancipha kancinci kancinci... -
Uhlalutyo lwemarike yokuthumela ngaphandle i-caustic soda eTshayina ngo-2022.
Ngowama-2022, imakethi yokuthumela ngaphandle yesoda ye-caustic soda yelizwe lam iyonke iya kubonisa umkhwa oguquguqukayo, kwaye isibonelelo sokuthumela ngaphandle siya kufikelela kwinqanaba eliphezulu ngoMeyi, malunga needola zaseMelika ezingama-750/itoni, kwaye umthamo wokuthumela ngaphandle oqhelekileyo wenyanga uya kuba ziitoni ezingama-210,000. Ukwanda okukhulu komthamo wokuthumela ngaphandle wesoda ye-caustic soda kungenxa yokwanda kwemfuno ephantsi kwamanye amazwe afana ne-Australia ne-Indonesia, ingakumbi ukuqaliswa kweprojekthi ye-alumina ephantsi e-Indonesia kuye kwandisa imfuno yokuthengwa kwesoda ye-caustic; ukongeza, echaphazeleka ngamaxabiso amandla aphesheya, izityalo ze-chlor-alkali zasekuhlaleni eYurophu ziqalile ukwakhiwa. Azanelanga, ukunikezelwa kwesoda ye-caustic soda engamanzi kuyancitshiswa, ngaloo ndlela ukunyusa ukungeniswa kwesoda ye-caustic kuya kwenza inkxaso entle... -
Imveliso ye-titanium dioxide eTshayina ifikelele kwiitoni ezizizigidi eziyi-3.861 ngo-2022.
Ngomhla wesi-6 kweyoMqungu, ngokwezibalo zeOfisi yoNobhala weTitanium Dioxide Industry Technology Innovation Strategic Alliance kunye neTitanium Dioxide Sub-center yeZiko leSizwe lokuKhuthazwa kweMveliso yeKhemikhali, ngo-2022, ukuveliswa kwe-titanium dioxide ngamashishini angama-41 asebenza ngokupheleleyo kwishishini le-titanium dioxide yelizwe lam kuya kufezekisa enye impumelelo, kwaye imveliso iyonke yemveliso ye-rutile kunye ne-anatase titanium dioxide kunye nezinye iimveliso ezinxulumene nayo ifikelele kwi-3.861 yezigidi zeetoni, ukwanda kweetoni ezingama-71,000 okanye i-1.87% ngonyaka. UBi Sheng, unobhala-jikelele weTitanium Dioxide Alliance kunye nomlawuli weTitanium Dioxide Sub-center, uthe ngokwezibalo, ngo-2022, kuya kubakho imveliso ye-titanium dioxide epheleleyo engama-41 ... -
I-Sinopec yenze inkqubela phambili ekuphuhlisweni kwe-metallocene polypropylene catalyst!
Kutshanje, i-metallocene polypropylene catalyst ephuhliswe ngokuzimeleyo yiBeijing Research Institute of Chemical Industry igqibe ngempumelelo uvavanyo lokuqala lwesicelo soshishino kwiyunithi yenkqubo ye-ring pipe polypropylene yeZhongyuan Petrochemical, kwaye yavelisa ii-homopolymerized kunye ne-random copolymerized metallocene polypropylene resins ezisebenza kakuhle kakhulu. I-China Sinopec yaba yinkampani yokuqala e-China ukuphuhlisa ngempumelelo itekhnoloji ye-metallocene polypropylene ngokuzimeleyo. I-Metallocene polypropylene ineengenelo zomxholo ophantsi onyibilikayo, ukucaca okuphezulu kunye nokukhazimla okuphezulu, kwaye yindlela ebalulekileyo yokuguqula nokuphucula imboni ye-polypropylene kunye nophuhliso oluphezulu. I-Beihua Institute iqalise uphando kunye nophuhliso lwe-metallocene po... -
I-Caustic Soda (i-Sodium Hydroxide) - isetyenziselwa ntoni?
Iikhemikhali ze-HD Caustic Soda – isetyenziswa njani ekhaya, emyezweni, okanye e-DIY? Eyona ndlela isetyenziswa kakhulu kukukhupha amanzi kwiipayipi. Kodwa i-caustic soda ikwasetyenziswa nakwezinye iimeko ezininzi zasekhaya, kungekuphela nje kwezongxamiseko. I-Caustic soda, ligama elidumileyo le-sodium hydroxide. Iikhemikhali ze-HD Caustic Soda zinefuthe elinamandla lokucaphukisa ulusu, amehlo kunye ne-mucous membranes. Ke ngoko, xa usebenzisa le khemikhali, kufuneka uthathe amanyathelo okhuseleko – khusela izandla zakho ngeeglavu, uvale amehlo akho, umlomo kunye nempumlo. Ukuba udibana nale nto, hlambulula indawo ngamanzi abandayo amaninzi kwaye udibane nogqirha (khumbula ukuba i-caustic soda ibangela ukutsha kweekhemikhali kunye neempendulo ezinzima ze-allergy). Kubalulekile ukugcina iarhente ngokufanelekileyo – kwisikhongozeli esivaliweyo (i-soda isabela kakhulu nge...