izindaba

I-Ultrahigh molecular weight polyethylene (UHMW-PE) iwuhlobo lwepulasitiki yobunjiniyela be-thermoplastic enesakhiwo esiwumugqa kanye nezakhiwo ezinhle kakhulu ezibanzi.
Ngaphambi kweminyaka yawo-1980, isilinganiso sokukhula konyaka emhlabeni wonke sasingama-8.5%.Ngemuva kweminyaka yawo-1980, izinga lokukhula lafinyelela ku-15% ~ 20%.Izinga lokukhula elimaphakathi lonyaka e-China lingaphezulu kwama-30%.Ngo-1978, ukusetshenziswa komhlaba kwakungamathani ayi-12,000 ~ 12,500, kwathi ngo-1990, isidingo somhlaba sasicishe sibe amathani angama-50,000, lapho i-United States yabalelwa ku-70%.Kusukela ngo-2007 kuya ku-2009, i-China kancane kancane yaba imboni yepulasitiki yobunjiniyela emhlabeni wonke, futhi imboni ye-polyethylene yesisindo se-ultra-molecular yathuthuka ngokushesha kakhulu.Umlando wokuthuthuka umi kanje:
Ithiyori eyisisekelo ye-ultrahigh molecular weight polyethylene fiber yahlongozwa okokuqala ngawo-1930.
Ukuvela kokuphotha kwejeli nokuphotha okwenziwe ngepulasitiki kwenze impumelelo enkulu kubuchwepheshe be-polyethylene yesisindo samangqamuzana aphezulu kakhulu.
Ngeminyaka yawo-1970, iCapaccio kanye neWard yeNyuvesi yaseLeeds e-United Kingdom baqala ukwenza i-polyethylene fiber enesisindo samangqamuzana esinesisindo esingu-100,000.
Ngo-1964, yathuthukiswa ngempumelelo futhi yafakwa ekukhiqizweni kwezimboni eChina.
Ngo-1975, iNetherlands yasungula i-Gelspinning isebenzisa i-decalin njenge-solvent, yalungiselela ngempumelelo i-UHMWPE fiber, futhi yafaka isicelo selungelo lobunikazi ngo-1979. Ngemva kweminyaka eyishumi yocwaningo, kufakazelwa ukuthi indlela yokuphotha ijeli iyindlela ephumelelayo yokukhiqiza i-polyethylene fiber enamandla amakhulu, enekusasa lezimboni elithembisayo.
Ngo-1983, i-ultra-high molecular weight polyethylene (UHMWPE) fibre yakhiqizwa e-Japan nge-gel extrusion kanye nendlela yokwelula kakhulu nopharafini njenge-solvent.
E-China, ipayipi le-polyethylene elinesisindo esikhulu samangqamuzana lafakwa ohlwini njengohlelo oluyisihluthulelo lokukhuthaza impumelelo kazwelonke yezesayensi nezobuchwepheshe ngo-2001 ngumbhalo woMnyango Wezesayensi Nobuchwepheshe (2000)056, ongokwezinto ezintsha zamakhemikhali nemikhiqizo emisha.UMnyango Wezesayensi Nobuchwepheshe Wekhomishini Yokuhlela Kahulumeni ubeke kuhlu ipayipi le-polyethylene lesisindo se-molecular ephezulu kakhulu njengephrojekthi ebaluleke kakhulu emkhakheni obalulekile wemboni yobuchwepheshe obuphezulu.
Thola izindlela
I-Ultra-high molecular weight polyethylene iwuhlobo lwe-polymer compound, kunzima ukuyicubungula, futhi inokumelana nokugqoka okuphezulu, ukuzithambisa, amandla aphezulu, izakhiwo zamakhemikhali ezinzile, ukusebenza okuqinile kokuguga, ngakho-ke ekubandlululweni kweqiniso namanga. i-polymer polyethylene, kufanele sinake izici zayo, indlela ethile yokubandlulula imi kanje:
1. Umthetho wokukala: ingxenye yemikhiqizo eyenziwe nge-polyethylene emsulwa ye-ultra-high yamangqamuzana iphakathi kuka-0.93 no-0.95, ukuminyana kuncane, futhi ingantanta phezu kwamanzi.Uma ingeyona i-polyethylene emsulwa, izocwila phansi.
2. Indlela ebonakalayo: ingaphezulu le-polyethylene yangempela ye-molecular weight flat, iyunifomu, ibushelelezi futhi ukuminyana kwesigaba kufana kakhulu, uma kungeyona into ehlanzekile yombala we-polyethylene i-dim futhi ukuminyana akufani.
Indlela yokuhlola engu-3: I-polyethylene ecwebezelayo ecwebezelayo ecwebezelayo ecwebezelayo iyindilinga, iyunifomu, ibushelelezi, uma ingeyona into emsulwa ye-polyethylene ephethukayo, futhi ngemuva kokushisisa i-flanging izovela into ye-slag.