Dab tsi yog qhov txawv ntawm ETFE thiab PTFE?

ETFE (los yog Ethylene tetraflurorethylene) yog cov fluorine raws li cov yas, nruab nrog lub siab melting point thiab cov tshuaj zoo heev, hluav taws xob thiab hluav taws xob hluav taws xob siab hluav taws xob.PTFE (los yog polytetrafluroethylene) yog cov khoom fluorocarbon.Ua hauj lwm raws li hydrophobic, tsis yog dej los yog dej-raws li cov khoom ntub dej PTFE.PTFE txo kev sib txhuam, hnav thiab yog li ntawd lub zog noj ntawm cov twj tso kua mis vim nws muaj ib qho qis tshaj coefficients ntawm kev sib txhuam tawm tsam cov khoom.

Cov ntaub ntawv tshaj plaws uas yuav tsum tau siv los tswj lub twj tso kua mis yog PTFE thiab ETFE polymers.

PTFE yog tsim los ntawm carbon thiab fluorine atoms whereas ETFE yog tsim los ntawm carbon, fluorine thiab hydrogen.Muab qhov zoo rau kev siv ob qho tib si.

Lub zog tensile ntawm ETFE tuaj yeem ua tau ntau npaum li 38% ntau dua PTFE, lub ntsiab lus ETFE cov khoom tuaj yeem raug ua haujlwm hnyav dua li nws cov khoom siv.

Qhov no yog vim li cas feem ntau cov twj siv tshuaj tau muab rau hauv ETFE vim nws yog cov khoom muaj zog rau cov txheej txheem txhaj tshuaj molding lawv mus dhau.

Txawm li cas los xij PTFE muaj cov coefficient ntawm kev sib txhuam ntawm ib feem peb ntawm ETFE ua rau nws tsim nyog thaum xav tau siab txaus vim nws pab txo cov yeeb nkab kev sib txhuam Losses.Thermal zog ntawm ob cov ntaub ntawv kuj yog ib qho tseem ceeb sib txawv... PTFE tuaj yeem ncav cuag qhov kub siab tshaj ntawm 327c. whereas ETFE tuaj yeem ncav cuag qhov kub siab tshaj ntawm 267c.

Cov theem no yog qhov tseem ceeb thaum xaiv lub twj tso kua mis zoo tshaj plaws;yog tias daim ntawv thov yuav tsum tau muab tso rau tuaj yeem ncav cuag qhov chaw nyob ze ntawm qhov kub thiab txias, nws yog qhov zoo tshaj plaws los xaiv PTFE vim tias ob qho tib si cov ntaub ntawv tau softer nyob ze lawv qhov kub siab tshaj plaws.

Tsis tas li ntawd, PTFE muaj qhov Limiting Oxygen Index (qhov tsawg kawg nkaus feem pua ​​​​ntawm cov pa oxygen uas cov polymer yuav hlawv) ntau dua 95% thaum ETFE nyob nruab nrab ntawm 30-36%, txhais tau hais tias PTFE yuav tsum tau txiav txim siab nyob rau hauv cov pa oxygen ntau dua.