xov xwm

Cov resin matrix ntawm thermoplastic composites muaj feem ntau thiab tshwj xeeb engineering plastics, thiab PPS yog ib tug neeg sawv cev ntawm tshwj xeeb engineering yas, feem ntau hu ua "yas kub".Cov kev ua tau zoo muaj xws li cov hauv qab no: kev ua haujlwm kub zoo, cov khoom siv zoo, kev tiv thaiv corrosion, thiab tus kheej-flammable mus txog UL94 V-0 qib.Vim tias PPS muaj qhov ua tau zoo saum toj no, thiab piv nrog lwm cov khoom siv hluav taws xob zoo thermoplastic engineering, nws muaj cov yam ntxwv ntawm kev ua haujlwm yooj yim thiab tus nqi qis, yog li nws tau dhau los ua cov khoom siv zoo heev rau kev tsim cov khoom sib xyaw.

PPS ntxiv rau cov iav fiber ntau luv luv (SGF) cov khoom sib xyaw muaj qhov zoo ntawm lub zog siab, siab kub tsis kam, nplaim hluav taws kub, ua haujlwm yooj yim, tsis tshua muaj nqi, thiab lwm yam.
PPS lengthened iav fiber ntau (LGF) cov khoom sib xyaw muaj qhov zoo ntawm qhov siab toughness, tsis muaj warpage, qaug zog tsis kam, cov khoom zoo, thiab lwm yam. Nws tuaj yeem siv rau impellers, twj tso kua mis, pob qij txha, li qub, tshuaj twj tso kua mis impellers thiab casings, dej txias. impellers thiab Plhaub, cov khoom siv hauv tsev, thiab lwm yam.

Yog li dab tsi yog qhov txawv ntawm cov khoom ntawm luv iav fiber ntau (SGF) thiab ntev iav fiber ntau (LGF) ntxiv dag zog rau PPS composites?

Cov khoom zoo ntawm PPS / SGF (cov iav luv luv) cov khoom sib xyaw thiab PPS / LGF (ntev iav fiber ntau) tau muab piv.Yog vim li cas vim li cas cov txheej txheem yaj impregnation yog siv rau hauv kev npaj cov ntsia hlau granulation yog tias cov impregnation ntawm fiber ntau yog pom nyob rau hauv impregnation pwm, thiab cov fiber ntau tsis puas.Thaum kawg, los ntawm cov ntaub ntawv sib piv ntawm cov khoom siv kho tshuab ntawm ob, nws tuaj yeem muab kev txhawb nqa rau cov neeg siv-sab scientific thiab thev naus laus zis thaum xaiv cov khoom siv.

Mechanical khoom tsom xam
Cov fibers reinforcing ntxiv nyob rau hauv resin matrix tuaj yeem tsim cov pob txha txhawb nqa.Thaum cov khoom sib xyaw yog raug rau sab nraud quab yuam, cov fibers reinforcing tuaj yeem dais lub luag haujlwm ntawm cov khoom sab nraud;Nyob rau tib lub sijhawm, nws tuaj yeem nqus tau lub zog los ntawm kev tawg, deformation, thiab lwm yam, thiab txhim kho cov khoom siv ntawm cov resin.

Thaum cov iav fiber ntau ntxiv, iav fiber ntau hauv cov khoom sib xyaw yog raug rau sab nraud quab yuam.Nyob rau tib lub sijhawm, vim qhov nce ntawm cov iav fiber ntau, cov resin matrix ntawm cov iav fibers ua thinner, uas yog ntau conducive rau kev tsim kho ntawm iav fiber reinforced thav ntawv;Yog li ntawd, qhov nce ntawm cov ntsiab lus iav fiber ntau ua rau cov khoom sib xyaw kom hloov kev ntxhov siab ntau dua los ntawm cov khoom siv rau cov iav fiber ntau nyob rau hauv cov khoom siv sab nraud, uas ua kom zoo dua qhov tensile thiab khoov cov khoom ntawm cov khoom sib xyaw.
Lub tensile thiab flexural zog ntawm PPS / LGF composites yog siab dua cov PPS / SGF composites.Thaum qhov loj ntawm cov iav fiber ntau yog 30%, lub zog tensile ntawm PPS / SGF thiab PPS / LGF cov khoom sib xyaw yog 110MPa thiab 122MPa, feem;Lub zog flexural yog 175MPa thiab 208MPa, feem;flexural elastic moduli yog 8GPa thiab 9GPa, feem.
Lub zog tensile, lub zog flexural thiab flexural elastic modulus ntawm PPS / LGF composites tau nce los ntawm 11.0%, 18.9% thiab 11.3%, feem, piv nrog PPS / SGF composites.Qhov ntev tuav tus nqi ntawm cov iav fiber ntau hauv PPS / LGF cov khoom sib xyaw yog siab dua.Nyob rau hauv tib lub iav fiber ntau cov ntsiab lus, cov khoom sib xyaw muaj zog load kuj thiab zoo dua txhua yam khoom.