xov xwm

Cov khoom siv ua los ntawm cov khoom siv thermoplastic composites muaj cov yas dav dav thiab cov yas tshwj xeeb, thiab PPS yog tus sawv cev ntawm cov yas tshwj xeeb, feem ntau hu ua "yas kub". Cov txiaj ntsig ntawm kev ua tau zoo suav nrog cov hauv qab no: kev tiv taus kub zoo heev, cov khoom siv kho tshuab zoo, kev tiv taus corrosion, thiab kev kub hnyiab tus kheej txog li UL94 V-0. Vim tias PPS muaj cov txiaj ntsig zoo tshaj plaws, thiab piv rau lwm cov yas thermoplastic engineering uas muaj kev ua tau zoo, nws muaj cov yam ntxwv ntawm kev ua tau 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 luv luv (SGF) cov khoom sib xyaw muaj qhov zoo ntawm lub zog siab, tiv taus kub siab, hluav taws kub retardant, yooj yim ua, pheej yig, thiab lwm yam.
Cov khoom siv PPS ua los ntawm iav fiber ntau (LGF) muaj qhov zoo ntawm kev ua kom muaj zog, tsis yooj yim tawg, tsis yooj yim qaug zog, zoo li khoom, thiab lwm yam. Nws siv tau rau cov impellers, cov casings twj tso kua mis, cov pob qij txha, cov li qub, cov twj tso kua mis tshuaj lom neeg thiab cov casings, cov dej txias impellers thiab Shells, cov khoom siv hauv tsev, thiab lwm yam.

Yog li ntawd, qhov sib txawv tshwj xeeb ntawm cov khoom ntawm cov iav luv luv (SGF) thiab cov iav ntev fiber (LGF) txhawb nqa PPS composites yog dab tsi?

Cov khoom siv dav dav ntawm PPS/SGF (fiber iav luv) composites thiab PPS/LGF (fiber iav ntev) composites tau muab piv rau. Qhov laj thawj uas cov txheej txheem impregnation yaj siv rau hauv kev npaj cov ntsia hlau granulation yog tias qhov impregnation ntawm cov fiber bundle tau pom tseeb hauv cov pwm impregnation, thiab cov fiber tsis puas. Thaum kawg, los ntawm kev sib piv cov ntaub ntawv ntawm cov khoom siv kho tshuab ntawm ob qho, nws tuaj yeem muab kev txhawb nqa rau cov neeg ua haujlwm tshawb fawb thiab thev naus laus zis sab hauv daim ntawv thov thaum xaiv cov ntaub ntawv.

Kev tshuaj xyuas cov khoom siv kho tshuab
Cov fibers reinforcing ntxiv rau hauv cov resin matrix tuaj yeem tsim cov pob txha txhawb nqa. Thaum cov khoom sib xyaw raug rau lub zog sab nraud, cov fibers reinforcing tuaj yeem dais lub luag haujlwm ntawm cov khoom sab nraud; tib lub sijhawm, nws tuaj yeem nqus lub zog los ntawm kev tawg, deformation, thiab lwm yam, thiab txhim kho cov khoom siv kho tshuab ntawm cov resin.

Thaum cov iav fiber ntau ntxiv, ntau cov iav fiber hauv cov khoom sib xyaw raug rau lub zog sab nraud. Tib lub sijhawm, vim muaj kev nce ntxiv ntawm cov iav fiber, cov resin matrix ntawm cov iav fiber ua nyias dua, uas yog qhov zoo dua rau kev tsim cov iav fiber reinforced thav duab; yog li ntawd, qhov nce ntawm cov iav fiber ua rau cov khoom sib xyaw hloov pauv ntau qhov kev ntxhov siab los ntawm cov resin mus rau iav fiber nyob rau hauv lub nra hnyav sab nraud, uas ua kom zoo dua qhov tensile thiab khoov ntawm cov khoom sib xyaw.
Cov khoom siv tensile thiab flexural ntawm PPS / LGF composites siab dua li cov ntawm PPS / SGF composites. Thaum qhov feem pua ​​​​​​ntawm cov iav fiber yog 30%, lub zog tensile ntawm PPS / SGF thiab PPS / LGF composites yog 110MPa thiab 122MPa, raws li; Lub zog flexural yog 175MPa thiab 208MPa, raws li; cov flexural elastic moduli yog 8GPa thiab 9GPa, raws li.
Lub zog tensile, lub zog flexural thiab flexural elastic modulus ntawm PPS/LGF composites tau nce ntxiv los ntawm 11.0%, 18.9% thiab 11.3%, feem, piv nrog PPS/SGF composites. Qhov ntev ntawm cov iav fiber hauv cov khoom siv PPS/LGF composite siab dua. Nyob rau hauv tib lub iav fiber cov ntsiab lus, cov khoom siv composite muaj zog dua load tiv taus thiab zoo dua mechanical zog.