Cov iav fiber ntau yog ib qho khoom siv uas tsis yog sib xyaw hlau nrog cov khoom ua tau zoo. Nws yog ua los ntawm iav pob los yog khib iav los ntawm high-temperature melting, yog nqus, winding, weaving, etc. Lub diameter ntawm lub monofilament yog ob peb micrometers rau nees nkaum. Ob qho me me, sib npaug li ntawm 1 / 20-1 / 5 ntawm ib cov plaub hau strand, txhua pob khoom ntawm fiber ntau muaj pua pua los yog ntau txhiab tus monofilaments. Cov iav khib nyiab muaj qhov zoo ntawm kev ua kom muaj zog, muaj feem xyuam ua kom lub cev nqus tau, ua kom kub kub thiab ua haujlwm zoo, thiab feem ntau yog siv cov khoom hauv cov ntaub ntawv. Ntev iav fiber reinforced yas:
Kev xaiv zoo rau kev tsav tsheb thiab vaj tse
Cov Plastics Uas Muaj Peev Xwm Uas Siv Cov Khoos Haum Uas yog hais txog cov khoom sib xyaw raws li iav fiber reinforced, polystyrene resin (los yog epoxy resin; phenolic resin), hu ua GRP. Cov khoom sib ntxiv nrog cov iav fiber reinforced muaj kev txhim kho zoo hauv cov hluav taws xob ua haujlwm, rigidity, kev ua haujlwm thiab kev kub cev piv nrog cov khoom yooj yim. Vim hais tias iav fiber reinforced yas yog sib npaug ntawm cov hlau, nws tseem muaj iav fiber ntau thiab muaj xim, cov khoom thiab qhov kev xeb hluav taws xob, hluav taws xob rwb thaiv tsev thiab cua sov rwb thaiv tsev ntawm iav. Yog li, nws yog nquag hu ua "cam reinforced yas" nyob rau hauv Suav teb.
Vim tias lub zog hnyav thiab siab zog ntawm cov iav fiber ntau reinforced plastics, nws yog dav siv nyob rau hauv kev lag luam ntawm lub tsheb, kev tsim kho, khoom siv hluav taws xob, thiab lwm yam. Nyob rau hauv kev lag luam automotive, iav fiber ntau reinstated plastics pib pib hloov cov ntaub ntawv hlau kom tiav tsheb.
Cov iav fiber ntau reinforced plastics yog mas muab faib ua thermoplastic thiab thermosetting, thiab muaj ntev khob fiber ntau thiab luv iav fiber ntau.
Cov iav fiber reinforced plastics yuav muab faib ua thermoplastic thiab thermosetting reinforced yas raws li lawv cov khoom ua. Feem ntau yog cov khoom uas yog khoom los yog elastomer hauv tsev sov. Yuav kom ua tau thiab tsim tau lawv, nws yog feem ntau yog tsim nyog rau kom sov lub yas kom ua cov yas Nws muaj ib qho dej ntws tawm khiav ceev, uas yog tom qab ntawd ua tiav. Cov cua sov ntawm lub thermoplastic (LFT, etc.) ua mos, thiab cov txheej txheem ntawm txias thiab hardening yog lub cev hloov, rov qab, thiab rov tuaj yeem rov qab. Cov thermosetting yas (SMC, thiab lwm yam.) Muaj kev hloov pauv hauv cov cua kub txheej txheem, thiab sab hauv ntawm cov khoom sib xyaw ua kom haj yam sib zog, thiab cua kub thiab sab hauv tsev puas los ntawm cua kub, kom tsis muaj rov qab ua dua los ntawm cua kub. Thermoplastics muaj ntau yam zoo dua thermoset plastics:
Thermoplastics yog recyclable thiab ntau tus phooj ywg environmentally: thermoplastics yuav rov qab rhaub, replasticised, thiab reprocessed, yog li cov khoom yas yuav rov ua dua thiab reused, thaum thermoset plastics tsis tau recycled.
Cov thermoplastics muaj tsawg dua, cov khoom thinner thiab txo qhov hnyav dua: thermoset plastics muaj qhov nruab nrab ntawm 1.7 g / cm3, thermoplastics tsuas yog 1.1 g / cm3, thiab thermoplastics yuav muaj cov nplooj ntsa zoo heev. Nyob rau hauv cov ntaub ntawv ntawm 0.4 mm, qhov no yog tsis tau rau thermosetting insulating cov ntaub ntawv, thiab lawv cov phab ntsa tuab feem ntau yog txwv rau 1.5 mm los yog ntau tshaj.
Thaj chaw thermoplastic ntau dua: kev txhaj tshuaj ntawm thermoplastic qhov chaw yog ib txoj kev ceev uas zoo tagnrho rau siab ntim ntau lawm. Thiab qhov chaw thermoplastic yuav luag ncav cuag qhov loj ntawm qhov tiav lawm tom qab cov pwm tawm, thiab thermoset plastics feem ntau yuav tsum tau ntxiv deburring lossis cov txheej txheem ua haujlwm kom tau cov khoom uas siv tau.
Kev siv cov khoom nyhav siab: Siv cov khoom siv kub thooj siab, feem ntau mus txog 95%, thiab cov thermoset plastics feem ntau muaj cov khoom siv ntawm 85% ntawm kev txhaj tshuaj molding. Txhaj tshuaj molding ntawm cov khoom siv thermoplastic me me los yog tsis muaj burrs kuj txo cov khoom pov tseg.
Hais txog cov nqi ntawm cov khoom siv, txawm hais tias tus nqi ntawm cov thermoplastics siab tshaj cov khoom siv thermoset, cov khoom tsim tau siab, kev siv cov khoom siv, thiab cov khoom siv rov ua dua ua cov nqi zoo ib yam li cov thermoset plastics.
Raws li qhov ntev ntawm cov yas hais thiab qhov ntev ntawm lub iav fiber ntau, muaj cov iav fiber ntau zog thiab cov iav ntev fiber ntau reinforced plastics. Lub iav fiber ntau reinforced plastics muaj ib qhov ntev ntawm 2-4 hli thiab ib khob fiber ntau ntev ntawm 0.2-0.4 hli. Cov iav fiber reinforced yas hais thiab cov iav fiber ntau txog 6-25 hli nyob ntev. Txij li cov iav fiber ntau hauv cov iav fiber ntau reinforced yas tau ntev ntev thiab ib qho kev kho ntxiv, nws muaj zog rigidity, qee lub zog, tsis muaj zog, tsis muaj zog thiab stability.
Ntev iav thermoplastics yog cov kev coj ua ntawm kev tsav tsheb: Vim hais tias cov kev lag luam uas muaj kev lag luam muaj kev ruaj ntseg ntawm cov khoom siv, feem ntau lawv siv cov iav fiber ntau reinforced plastics, tshwj xeeb tshaj plaws tsheb yam ntxwv, uas siv cov thermoplastic thiab thermosetting plastics. Muaj ntau txoj kev siv. Xav txog kev siv dua tshiab, ntais thiab thinner cov yam ntxwv ntawm cov thermoplastic iav fiber ntau zog, nws yuav yog txoj kev loj hlob ntawm cov iav fiber reinforced plastics hauv kev lag luam automotive yav tom ntej.
