Dab tsi yog cov cuab yeej khoom ntawm PTFE?
Mar 10, 2021
Tso lus
Cov cuab yeej txhua yam ntawm PTFE feem ntau tau piav qhia los ntawm peb yam: nkag thiab kev ntxhov siab, qaug zog tsis kam thiab muaj zog cuam tshuam.
Thaum lub rhuav tshem ntawm PTFE nyob hauv qab cov xwm txheej hloov, nws loj dua nrog lub sijhawm. Lub hauv paus tseem ceeb uas cuam tshuam qhov deformation ntawm PTFE cov khoom lag luam yog lub nra load, lub sijhawm ntev npaum li cas, thiab ntsuas kub. Nyob rau tib lub sijhawm, nws muaj qee qhov kev sib raug zoo nrog crystallinity thiab molecular phaus ntawm cov khoom nws tus kheej. Cov tawv tawv ntawm cov khoom siv PTFE nrog cov crystallinity ntawm 75% rau 80% yog qhov zoo tshaj, thiab qhov tsawg tshaj plaws cuam tshuam rau kev deformation.
Lub zog tsis kam ntawm PTFE yog ncaj qha ntsig txog thaj chaw sab nraud nyob hauv qhov chaw nws nyob. Qhov ncaj qha tshaj plaws ntawm kev qaug zog tsis kam yog qhov teeb meem zaus, ua raws li kev ntsuas kub thiab quab yuam. PTFE muaj tsis kam nkees ua tau. Txawm hais tias nws tuaj yeem rov ua dua vim cov khoom siv yuag, nws tseem tuaj yeem ua kom tiav cov khoom ua tiav.
Qhov cuam tshuam ntawm PTFE yog qhov zoo heev, qhov cuam tshuam lub zog ntawm cov ntaub ntawv polymer yog txiav txim siab los ntawm cov duab ntawm cov khoom, PTFE tuaj yeem ua kom muaj kev cuam tshuam zoo hauv kev ua haujlwm siab thiab tsis kub.
