xov xwm

Ntsib qhov teeb meem loj zuj zus ntawm kev ua qias tuaj ib puag ncig, kev paub txog kev tiv thaiv ib puag ncig hauv zej zog tau maj mam nce ntxiv, thiab qhov sib txawv ntawm kev siv cov khoom siv ntuj kuj tau loj hlob tuaj. Cov khoom siv zoo rau ib puag ncig, lub teeb yuag, kev siv hluav taws xob tsawg thiab cov yam ntxwv rov ua dua tshiab ntawm cov nroj tsuag fibers tau nyiam ntau qhov kev mloog zoo. Nws yuav raug txiav txim siab yav tom ntej Yuav muaj kev txhim kho siab. Txawm li cas los xij, cov nroj tsuag fiber yog cov khoom siv sib txawv nrog cov qauv sib xyaw thiab cov qauv nyuaj, thiab nws qhov chaw muaj cov pab pawg hydrophilic hydroxyl. Qhov sib raug zoo nrog lub matrix xav tau kev kho mob tshwj xeeb los txhim kho cov khoom ntawm cov khoom sib xyaw. Cov nroj tsuag fibers siv rau cov ntaub ntawv sib xyaw, tab sis feem ntau ntawm lawv tsuas yog txwv rau cov fibers luv luv thiab cov fibers tsis sib xws. Cov khoom zoo thawj tsis tau siv tag nrho, thiab lawv tsuas yog siv ua cov khoom sau. Yog tias peb tuaj yeem qhia txog kev siv tshuab weaving, nws yog ib qho kev daws teeb meem zoo. Cov nroj tsuag fiber woven preforms tuaj yeem muab ntau cov kev xaiv ua tau zoo rau cov ntaub ntawv sib xyaw, tab sis tam sim no lawv siv tsawg dua thiab tsim nyog rau kev tshawb fawb ntxiv thiab kev txhim kho. Yog tias peb tuaj yeem rov xav txog txoj kev siv cov fiber ib txwm muaj, thiab qhia txog cov tswv yim niaj hnub sib xyaw ua ke los txhim kho nws, txhim kho qhov zoo ntawm kev siv thiab txhim kho qhov tsis zoo, nws yuav muaj peev xwm muab cov nroj tsuag fiber tshiab thiab daim ntawv thov.

Cov nroj tsuag fiber yeej ib txwm tsis sib cais ntawm tib neeg lub neej txhua hnub. Vim nws yooj yim thiab rov ua dua tshiab, cov nroj tsuag fiber tau dhau los ua cov khoom siv tseem ceeb rau tib neeg lub neej. Txawm li cas los xij, nrog kev nce qib ntawm thev naus laus zis thiab kev nce qib ntawm kev lag luam petrochemical, cov tib neeg ua fibers thiab yas tau maj mam hloov cov nroj tsuag fibers ua cov khoom siv tseem ceeb vim yog qhov zoo ntawm kev tsim khoom siv thev naus laus zis, kev sib txawv ntawm cov khoom thiab kev ruaj khov zoo. Txawm li cas los xij, roj av tsis yog cov khoom siv rov ua dua tshiab, thiab cov teeb meem pov tseg pov tseg los ntawm kev pov tseg cov khoom zoo li no thiab cov pa phem ntau thaum lub sijhawm tsim khoom tau ua rau tib neeg rov xav txog kev siv cov ntaub ntawv. Raws li qhov sib txawv ntawm kev tiv thaiv ib puag ncig thiab kev ruaj khov, cov nroj tsuag fibers ntuj tau rov qab los mloog zoo. Nyob rau hauv xyoo tas los no, cov ntaub ntawv sib xyaw uas siv cov nroj tsuag fibers ua cov ntaub ntawv txhawb nqa tau pib tau txais kev mloog zoo.

Cov nroj tsuag fiber thiab composite

Cov qauv sib xyaw ua ke tuaj yeem tsim los ntawm cov txheej txheem tsim khoom. Cov fiber ntau-qhwv muab cov duab tiav thiab tshwj xeeb ntawm cov khoom siv, thiab tiv thaiv cov fiber los ntawm kev puas tsuaj vim muaj kev cuam tshuam ib puag ncig, thiab tseem ua haujlwm ua tus choj los hloov kev ntxhov siab ntawm cov fibers; thaum cov fiber nqa feem ntau ntawm lub zog sab nraud nrog nws cov khoom siv zoo heev thiab tuaj yeem dhau Qhov kev npaj tshwj xeeb ua tiav ntau yam haujlwm. Vim nws qhov qis qis thiab lub zog siab, cov nroj tsuag fiber tuaj yeem txhim kho cov khoom siv kho tshuab thiab tswj qhov qis qis thaum nws ua rau hauv FRP composites. Tsis tas li ntawd, cov nroj tsuag fiber feem ntau yog cov nroj tsuag cell aggregates, thiab cov qhov thiab qhov sib txawv hauv nws tuaj yeem coj cov khoom rwb thaiv tsev kub zoo rau cov khoom siv. Nyob rau hauv lub ntsej muag ntawm lub zog sab nraud (xws li kev co), nws kuj tau txais txiaj ntsig los ntawm nws cov porosity, uas tso cai rau lub zog kom sai dissipate. Ntxiv mus, cov txheej txheem ntau lawm ntawm cov nroj tsuag fiber emits tsawg dua kev ua qias tuaj thiab siv cov tshuaj tsawg dua, muaj qhov kub ua haujlwm qis dua, muaj qhov zoo ntawm kev siv hluav taws xob qis dua, thiab qib ntawm kev hnav khoom siv thaum lub sijhawm ua tiav kuj qis dua; ntxiv rau, cov nroj tsuag fiber yog ntuj tsim Cov yam ntxwv rov ua dua tshiab, kev tsim khoom ruaj khov tuaj yeem ua tiav hauv kev tswj hwm thiab kev tswj hwm tsim nyog. Nrog kev pab los ntawm cov thev naus laus zis niaj hnub no, qhov kev lwj thiab kev tiv taus huab cua ntawm cov khoom tau raug tswj hwm zoo, yog li lawv tuaj yeem lwj tom qab lub voj voog ntawm cov khoom, yam tsis ua rau muaj kev sib sau ua ke ntawm cov khib nyiab, thiab cov pa roj carbon uas tso tawm los ntawm kev lwj kuj tau los ntawm kev loj hlob thawj zaug. Lub hauv paus carbon hauv huab cua tuaj yeem yog cov pa roj carbon nruab nrab.