Taw qhia rauPolyethylene fiber ntauthiab kub
Polyethylene fibers, tshwj xeeb yog ultra - siab molecular phaus polyethylene (UHMWPE) rau ntau yam kev siv, suav nrog Ballistic) rau hauv ntau daim ntawv thov, suav nrog Ballistic), suav nrog ballistic - Txawm li cas los xij, lawv qhov kev ua tau zoo nyob rau hauv cov kev kub siab yog ib qho tseem ceeb tshaj plaws uas tuaj yeem cuam tshuam lawv txoj kev ntseeg tau thiab tsis tu ncua.
Cov qauv ntawm polyethylene fiber
UHMWPE Fibers yog tsim ntawm ntev, muaj ib txoj kev sib dhos heev nrog cov qib siab ntawm crystallinity. Cov qauv no ua rau lawv cov khoom siv hluav taws xob tsis txaus siab, suav nrog lub zog tensile li 4 GPA thiab qis ntom ncig 0.97 g / cm3. Txawm li cas los xij, qhov no crystalminity thiab kev sib ncag kuj ua rau cov khaub ncaws ua rau muaj kev cuam tshuam thermal, uas tuaj yeem cuam tshuam lawv lub cev kev ncaj ncees.
Thermal Kev Txwv Cov Cuab Yeej
Kev kub siab tau tuaj yeem pib uacko - oxidative tsis muaj kev cuam tshuam hauv polyethylene fibers. Cov txheej txheem no cuam tshuam cov pa roj carbon - - Hauv lub nroog luam tawm vim yog C-C BL BARDISTION, ua rau txo qis hauv cov hniav puas loj. Qhov xub thawj ntawm cov radicals thiab tom qab cov scrission ua kom zoo rau cov muaj fiber ntau cov khoom siv.
Hloov pauv cov khoom siv neeg kho tshuab
Kev nthuav tawm rau nce qhov kub tau kub tuaj yeem txo cov tshuab kev ua haujlwm ntawm polyethylene fibers. Lub zog tensile thiab shear lub zog tau ob qho tib si diminish li thermal laus kev nce qib. Piv txwv li, cov txiaj ntsig ntsuas tau qhia tau tias muaj kev nce kub ntev thiab sijhawm, lub tensile lub zog pib thiab tom qab ntawd txo tau cov khoom zoo ntawm cov xwm txheej tshwj xeeb.
Crystalline morphology hloov
Kev ntsuas kub siab ua rau muaj kev hloov pauv hauv cov crystalline morphology ntawm polyethylene fibers. Dav - Lub kaum sab xis x - roov diffraction (siv cov ntaub ntawv) qhia txog cov cheeb tsam amorphou, yooj yim oxygen diffusion rau hauv cov khoom siv thiab exacerbating oxidative tsis muaj kev mob siab. Qhov kev hloov morphological ua rau txo cov hniav nyiaj loj thiab cov neeg kho tshuab tsis muaj zog.
Qhov cuam tshuam ntawm Kev Laus Kub
Thermal kev laus cuam tshuam ntev ntev - lub sij hawm ruaj khov ntawm polyethylene fibers. Lub xub ntiag ntawm tej yam tsis xws luag thiab impurities los ntawm kev ua ntxiv kom accelerates oxidation, txhawb kev soj ntsuam cov hlau thiab ploj ntawm kev siv tshuab. Cov kev ua tau zoo tuaj yeem txo qis lub sijhawm, cuam tshuam nws siv hauv kev siv xws li kev tiv thaiv kev tiv thaiv.
Lub luag haujlwm ntawm kev ua haujlwm
Kev ua kom zoo tshaj plaws, xws li kub, thiab lub zog thaum kub - nias, yog qhov tseem ceeb rau kev tswj cov khoom siv ntawm polyethylene fibers. Kev ntsuam xyuas qhia tau tias cov kws ua zoo tshaj plaws rau cov neeg siv khoom zoo tshaj plaws rau cov ntaub ntawv tsis zoo - yuav ua tiav ntawm 130 ° C nrog tensile lub zog ncav 595.43 MPa. Kev kho kom haum roj hauv siab kuj tseem tuaj yeem cuam tshuam cov khoom siv shear pov tseg.
Kev tiv thaiv kev tiv thaiv thiab kev txhim kho
Kev siv kev tiv thaiv kev tiv thaiv, xws li cov txheej txheem lossis ntxiv, tuaj yeem txhim kho lub thermal stability ntawm polyethylene fibers. Cov kev ntsuas no pab txo qis kev cuam tshuam, cia cov fibers los tuav lub zog thiab cov kev ua kom ruaj khov nyob hauv siab - Kub Txwv. Cov neeg muag khoom hauv Suav teb yog nquag tsim cov thev naus laus zis txhawm rau txhim kho cov fiber ntau.
Sib piv nrog Lwm Cov Khoom Siv
Polyethylene fibers muab kev haum xeeb ntawm lub zog thiab qhov hnyav piv rau kev xaiv li para - aramid fibers thiab hlau. Txawm li cas los xij, lawv lub thermal stability yog qis dua, tsim nyog siv nrhav hauv kev ua thiab kev tiv thaiv kom paub tseeb kev sib tw ua tau zoo. Kev coj ua tau zoo tshaj plaws hauv cov khoom raws li kev txhim kho yog qhov tseem ceeb rau kev tswj hwm kev ua lag luam.
Kev Tshawb Nrhiav Yav Tom Ntej thiab Kev Loj Hlob
Kev tshawb fawb nyob rau kev nkag siab txog cov kev hloov pauv molecular hauv polyethylene fibers thaum kub. Kev tsim cov ntaub ntawv qib siab thiab thev naus laus zis kom txo thicko - oxidative accomation yog qhov tseem ceeb rau kev tswj hwm fiber ntau. Cov khoom lag luam Suav zoo tshaj plaws yog nyob rau ntawm qhov tseeb ntawm qhov kev tshawb fawb no, ua rau muaj kev daws teeb meem zoo dua.
Changqingteng muab kev daws teeb meem
Changqingteng muaj kev daws teeb meem los txhim kho cov thermal ruaj khov ntawm polyethylene fibers. Los ntawm kev ua kom zoo ua cov kev mob thiab sib xyaw ua kom cov kev tiv thaiv siab dhau, peb ua kom cov khoom siv tau ua lawv cov khoom siv hauv qab cov mob nyuaj hauv qab. Peb kev cog lus rau kev ua tau zoo ua rau peb ua tus xa khoom hauv kev lag luam. Rau cov txiaj ntsig zoo tshaj plaws, kev ntseeg siab Changqingeng, koj tus khub vam meej hauv cov khoom tsim tshiab.
