xov xwm

Ultrahigh molecular hnyav polyethylene (UHMW-PE) yog ib hom thermoplastic engineering yas nrog cov qauv linear thiab cov khoom zoo heev.
Ua ntej xyoo 1980, lub ntiaj teb qhov nruab nrab txhua xyoo kev loj hlob yog 8.5%.Tom qab xyoo 1980, qhov kev loj hlob mus txog 15% ~ 20%.Qhov nruab nrab txhua xyoo kev loj hlob hauv Suav teb yog siab dua 30%.Xyoo 1978, lub ntiaj teb kev noj haus yog 12,000 ~ 12,500 tons, thiab xyoo 1990, lub ntiaj teb xav tau yog li 50,000 tons, uas Tebchaws Meskas suav txog 70%.Los ntawm 2007 mus rau 2009, Tuam Tshoj maj mam los ua lub ntiaj teb no engineering plastics Hoobkas, thiab lub ultra-molecular hnyav polyethylene kev lag luam tsim sai heev.Keeb kwm kev loj hlob yog raws li nram no:
Lub tswv yim tseem ceeb ntawm ultrahigh molecular hnyav polyethylene fiber ntau yog thawj zaug hauv xyoo 1930s.
Qhov tshwm sim ntawm gel spinning thiab plasticized spinning tau ua rau muaj kev cuam tshuam zoo hauv kev siv tshuab ntawm ultra-high molecular hnyav polyethylene.
Nyob rau xyoo 1970, Capaccio thiab Ward ntawm University of Leeds hauv tebchaws United Kingdom thawj zaug tsim cov khoom hnyav molecular polyethylene fiber ntau nrog qhov hnyav molecular ntawm 100,000.
Nyob rau hauv 1964, nws tau ntse tsim thiab muab tso rau hauv industrial ntau lawm nyob rau hauv Tuam Tshoj.
Xyoo 1975, Lub Tebchaws Netherlands tau tsim Gelspinning siv decalin ua hnyav, ua tiav kev npaj UHMWPE fiber ntau, thiab tau thov rau patent xyoo 1979. Tom qab kaum xyoo ntawm kev tshawb fawb, nws tau ua pov thawj tias gel spinning txoj kev yog ib txoj hauv kev zoo rau kev tsim muaj zog polyethylene fiber ntau, uas muaj kev cog lus muaj kev lag luam yav tom ntej.
Xyoo 1983, ultra-high molecular hnyav polyethylene (UHMWPE) fiber ntau tau tsim nyob rau hauv Nyiv los ntawm gel extrusion thiab super stretching txoj kev nrog paraffin ua hnyav.
Nyob rau hauv Suav teb, ultra siab molecular hnyav polyethylene yeeb nkab tau teev raws li lub hom phiaj tseem ceeb ntawm kev tshawb fawb thiab thev naus laus zis hauv xyoo 2001 los ntawm Ministry of Science thiab Technology (2000) 056 daim ntawv, uas yog cov khoom siv tshuaj tshiab thiab cov khoom tshiab.Lub Tsev Haujlwm Saib Xyuas Kev Tshawb Fawb thiab thev naus laus zis ntawm Lub Xeev Lub Chaw Haujlwm Saib Xyuas Kev Ua Haujlwm tau teev npe ultra-siab molecular hnyav polyethylene yeeb nkab raws li qhov tseem ceeb hauv txoj haujlwm tseem ceeb ntawm kev lag luam high-tech.
Txheeb xyuas cov txheej txheem
Ultra-siab molecular hnyav polyethylene yog ib hom polymer compound, nws yog ib qho nyuaj rau txheej txheem, thiab muaj super hnav tsis kam, nws tus kheej lubricating, siab zog, ruaj khov khoom, muaj zog tiv thaiv kev laus, yog li nyob rau hauv kev ntxub ntxaug ntawm qhov tseeb thiab tsis tseeb. polyethylene polyethylene, peb yuav tsum tau them sai sai rau cov yam ntxwv ntawm nws, txoj kev cais tshwj xeeb yog raws li hauv qab no:
1. Kev ntsuas qhov hnyav: qhov kev faib ua feem ntawm cov khoom ua los ntawm cov ntshiab ultra-siab molecular hnyav polyethylene yog nyob nruab nrab ntawm 0.93 thiab 0.95, qhov ntom yog me me, thiab nws tuaj yeem ntab rau saum npoo dej.Yog tias nws tsis yog polyethylene ntshiab, nws yuav nkag mus rau hauv qab.
2. Visual txoj kev: qhov saum npoo ntawm qhov tseeb ultra-siab molecular hnyav polyethylene yog tiaj tus, zoo ib yam, du thiab qhov ntom ntawm cov seem yog zoo ib yam, yog tias nws tsis yog ntshiab polyethylene cov khoom xim yog dim thiab qhov ntom ntom tsis sib xws.
3 ntug kev xeem txoj kev: ntshiab ultra-siab molecular hnyav polyethylene flanging kawg lub ntsej muag yog puag ncig, niaj hnub, du, yog tias tsis ntshiab polyethylene khoom flanging kawg lub ntsej muag tawg, thiab tom qab cua sov flanging yuav tshwm sim slag tshwm sim.