CF PPA: Siab -kub Resistant Polymer
LCF PPA compound resin yog ib qho tshwj xeeb engineering yas sib xyaw cov khoom uas muaj nyob rau hauv siab -kub nylon tsev neeg. Nws yog tsim los ntawm cov txheej txheem pultrusion tshwj xeeb, qhov twg PPA matrix yog yaj- khi nrog ntev carbon fibers.
Hauv kev tsim cov xwm txheej huab cua, cov neeg ua haujlwm feem ntau ntsib teeb meem: vim qhov poob qis ntawm cov txheej txheem engineering plastics (xws li GF PA66) nyob rau hauv qhov kub thiab txias, lawv yuav tsum muaj kev cuam tshuam los ntawm kev siv cov hlau hnyav. Qhov tshwm sim ntawm LCF PPA cov khoom (ntev carbon fiber reinforced polyphthalamide) yog qhov tseeb kom tawg los ntawm tus ciam teb no. Nws tsis yog kev hloov kho yas yooj yim, tab sis cov khoom siv sib xyaw ua ke nrog quasi -cov khoom siv hlau, aiming los muab cov kev daws teeb meem tshwj xeeb rau cov khoom siv uas muaj cov kev cai nruj rau qhov hnyav txo coefficient, siab - kub creep, thiab dynamic qaug zog.
Vim li cas "ntev" tseem ceeb heev?
Traditional short carbon fibers (SCF) behave like "gravel" in the matrix and provide only limited reinforcement;Traditional short carbon fibers (SCF) behave like "gravel" in the matrix, providing only limited reinforcement; in contrast, the carbon fibers in LCF PPA compound resin typically retain a length of >1 hli (txawm tias ncav tshaj 10 hli) hauv cov khoom kawg.
Cov carbon fibers ntev sib cuam tshuam nrog ib leeg thaum lub sijhawm txhaj tshuaj molding, tsim tus kheej -txhawb 3D fiber ntau network. Thaum raug cuam tshuam rau sab nraud quab yuam, cov fibers luv luv yuav raug rub tawm los yog tawg, ua rau brittleness; thaum lub sij hawm ntev carbon fibers nqus lub zog loj heev los ntawm peb theem: fiber ntau tawg, detachment, thiab ntev -txoj kev rub tawm.
Lub tshuab ua haujlwm ntawm LCA PPA
Hauv kev sib hloov ntawm cov hlau nrog cov yas, LCF PPA cov khoom sib xyaw tau pom tias muaj zog tshwj xeeb. Nws qhov ntom ntom yog sib zog dua li ntawm aluminium alloys, tab sis nws qhov tensile modulus tuaj yeem yooj yim tshaj 30 GPA.
Dab tsi yog qhov tseem ceeb tshaj yog nws cov dynamic mechanical zog. Ua tsaug rau qhov tshwj xeeb fiber rub- tawm mechanism ntawm ntev fibers, thaum cov khoom raug cuam tshuam, lub zog yog dissipated nyob rau hauv loj npaum li cas los ntawm lub interface debonding thiab zawv zawg ntawm fibers thiab matrix. Qhov no ua rau qhov cuam tshuam lub zog ntawm LCF PPA yas pellet ob peb zaug ntawm cov khoom siv luv luv carbon fiber ntau, daws qhov tsis xws luag ntawm cov khoom siv fiber ntau ntxiv, "siab rigidity nrog siab brittleness". Nyob rau tib lub sijhawm, cov qauv hauv lub network no cuam tshuam qhov cuam tshuam ntawm cov hlua khi ntawm cov khoom siv polymer, ua rau cov khoom siv nrog kev nkag siab zoo thiab qaug zog tiv thaiv, ua rau nws tiv taus cov kev ua haujlwm hnyav ntawm siab - zaus vibrations nyob ib ncig ntawm lub cav.
CF PPA: Thermodynamics thiab Environmental kam rau ua
Lub semi- aromamatic qauv ntawm PPA matrix nws tus kheej endows cov khoom uas tsis tshua muaj noo noo nqus tus nqi thiab tshwj xeeb tshuaj tiv thaiv. Txawm hais tias nyob rau hauv ib puag ncig hnyav xws li kub thiab av noo los yog raug rau cov roj- cov tshuaj, cov khoom siv ntawm LCF PPA qhia tau tias muaj kev puas tsuaj tsawg thiab kev ruaj ntseg zoo kawg nkaus.
Dab tsi yog qhov tshwj xeeb tseem ceeb yog nws cov kab hluav taws xob thermal expansion coefficient (CLTE). Nyob rau hauv cov kev taw qhia ntawm ntws, CLTE tus nqi ntawm LCF PPA yog tsis tshua muaj neeg tsawg thiab yog ze heev rau cov hlau txhuas. Qhov no txhais tau hais tias nyob rau hauv cov xwm txheej uas muaj cov hlau ntxig txhaj tshuaj molding los yog cov mating meej, nws tuaj yeem tiv thaiv kev ntxhov siab sab hauv los yog cov khoom sib tsoo los ntawm thermal expansion thiab contraction sib txawv. Nrog rau qhov kub thiab txias distortion (HDT) txog li 250℃lossis siab dua, LCF PPA dhau los ua qhov kev xaiv zoo tshaj plaws rau kev tiv thaiv qhov kub siab hauv lub cav tsheb.
Tus Nqi Nyiaj Txiag ntawm Lwm Cov Hlau
Ncua tseg kev ua haujlwm thib ob:Tom qab cov tuag- nrum txhuas qhov chaw raug tsim, lawv yuav tsum tau deburred, undergo CNC machining rau tapping, thiab undergo nto tiv thaiv -corrosion kev kho mob. LCF PPA composite txhaj tshuaj molding yog cov khoom tiav, ua tiav ib qho -kauj ruam net-puab tsim, nrog cov txiaj ntsig siab dua.
Ultra lub teeb yuag:Lub zog tshwj xeeb ntawm carbon fiber ntau yog ntau zaus ntawm cov hlau. Hloov cov txhuas nrog LCF PPA yas granules feem ntau ua rau txo qhov hnyav, uas yog qhov tseem ceeb rau lub tsheb hluav taws xob (kev ntxhov siab ntau) thiab drones (kev ntxhov siab them nyiaj).
Tsim yooj yooj yim:Nws ua kom muaj kev paub txog cov txheej nyias nyias - cov qauv phab ntsa, kev tsim kho, thiab txawm tias kev sib koom ua ke ntawm cov khoom siv ua haujlwm (xws li clasps, channels) rau kev txhaj tshuaj molding, yog li txo cov txheej txheem sib dhos.
FAQ
Q: Qhov kev ruaj ntseg ntawm LCF PPA ua haujlwm li cas hauv qhov chaw siab - kub thiab siab - cov av noo ib puag ncig?
A: PPA matrix belongs rau semi{0}} aromatic nylon thiab muaj qhov nqus dej tsawg dua li PA66. Ua ke nrog cov tsis tshua muaj kab hluav taws xob thermal expansion coefficient (CLTE) ntawm cov roj carbon fibers ntev (qhov kev taw qhia ntws ze rau ntawm cov hlau), LCF PPA nthuav tawm qhov kev ruaj ntseg zoo thaum lub sij hawm ntub dej kub.
Q: Dab tsi yog cov cai tshwj xeeb rau kev txhaj tshuaj molding tshuab thiab pwm thaum ua LCF PPA?
A: Nws yog ib qho tseem ceeb uas yuav tsum tau muab qhov tseem ceeb rau kev tiv thaiv kev hnav thiab tswj qhov ntev ntawm fiber ntau optical.
Q: Puas yuav muaj teeb meem "floating fibers" ntawm qhov chaw? Yuav daws tau li cas?
A: Yog, ntev carbon fibers yuav ua rau qhov chaw ntxhib (floating fibers). Qhov no feem ntau yog cov ntaub ntawv rau cov khoom siv uas cov tsos tsis muaj qhov tseem ceeb. Yog tias koj xav txhim kho qhov tsos, koj tuaj yeem siv txoj hauv kev xws li siv cov pwm kub dua.
Tau ntev, cov engineers tau raug yuam kom tsis kam lees qhov kev cuam tshuam ntawm "hnyav ntawm hlau" thiab "softness ntawm yas". Qhov tshwm sim ntawm LCF PPA cov ntaub ntawv yog qhov kawg ntawm lub sijhawm no ntawm kev sib haum xeeb. Nws tsis yog ib qho kev xaiv rau aluminium alloy; nws tseem yog tus yuam sij rau koj los rhuav tshem cov kev txwv tsim thiab nthuav tawm lub peev xwm ntawm cov qauv. Thaum koj tsis txwv los ntawm qhov hnyav lossis txwv los ntawm qhov kub thiab txias, koj cov khoom yuav siv li cas? Tam sim no, cia peb siv LCF PPA yas pellet ua ke los hloov cov "tsis tuaj yeem" cov duab kos rau hauv qhov tsis muaj tseeb.
Tiv tauj peb rau ib qho kev txiav txim
Cim npe nrov: cf ppa: siab -kub resistant polymer, Tuam Tshoj, manufacturers, lwm tus neeg, Hoobkas, yuav, customized
