Koj puas paub tias cov khoom ua li cas ua tus nres nres?
Nres cov ntaub ntawv feem ntau muab faib ua plaub ntu: cov hlua khi, cov khoom siv fiber ntau muaj zog, kev sib txhuam kev ua haujlwm, thiab plaub ntu: ntim cov ntaub ntawv yog ib qho tseem ceeb ntawm cov khoom sib txhuam. Nws tuaj yeem kho cov khoom ua haujlwm tom qab degradation. cuam tshuam, hnav cov khoom thiab cov khoom siv kho tshuab.
Feem ntau muaj cov thermosetting thiab thermoplastic, roj hmab, thiab cov khoom sib xyaw. Feem ntau siv cov ntaub ntawv sib txhuam rau cov pawm brakes yog thermal adhesives. Cov ntawv thov tshwj xeeb suav nrog phenolic resin, melamine resin, epoxy resin, silicone resin, polyamide resin, thiab lwm yam.
Feem ntau siv yog phenolic resin thiab nws cov hloov kho resin. Lub hom phiaj ntawm kev hloov kho yog los txhim kho qhov kub thiab txias ntawm cov resin. Txhawm rau txhim kho kev ua haujlwm kub ntawm cov nplaum, polyimide resin tau siv rau hauv cov khoom siv tsheb sib txhuam siab heev. Txawm li cas los xij, tus nqi ntawm cov resin yog siab dhau thiab nws tsis yooj yim rau kev nrov.
Nws yog cov khoom siv fiber ntau ntxiv kev sib txhuam uas tseem ua lub luag haujlwm ntawm kev sib txhuam-txhim kho lub hauv paus rau cov khoom tseem ceeb. Piv nrog rau cov ntaub ntawv ib txwm muaj xws li asbestos thiab lwm yam ntxhia fibers, steel fibers siv nyob rau hauv semi-metallic tsheb sib txhuam cov ntaub ntawv yog ntxiv nrog ib tug me me ntawm tooj liab fiber ntau thiab ib tug me me ntawm tooj liab fiber ntau ntxiv nyob rau tib lub sij hawm. Nyob rau hauv xyoo tas los no, muaj ntau thiab ntau hom kev txhawb nqa fibers, qhov muag pom tshaj plaws uas yog daim ntawv thov ntawm aramid fibers.
Qhov sib ntxiv ntawm cov organic fibers tuaj yeem txo qhov ntom ntawm cov khoom, txo qhov hnav, thiab tib lub sijhawm txo cov kev sib txhuam coefficient ntawm cov khoom. Txhawm rau txhim kho qhov ruaj khov ntawm cov ntaub ntawv sib txhuam hauv qhov sib txawv ntawm qhov kub thiab qhov sib txawv ntawm cov fibers thiab cov binders, ntau cov fibers feem ntau siv rau hauv cov ntawv thov.
