Qee qhov tseem ceeb tshaj plaws ntawm polypropylene yog:
1.Chemical Resistance: diluted bases thiab acids tsis hnov mob nrog polypropylene, uas ua rau nws yog ib qho kev xaiv zoo rau cov ntim ntawm cov kua dej xws li cov tshuaj ntxuav, cov khoom siv thawj zaug, thiab lwm yam.
2.Elasticity thiab Toughness: Polypropylene yuav ua nrog elasticity ntau ntawm deflection (zoo li txhua yam ntaub ntawv), tab sis nws tseem yuav muaj cov yas deformation thaum ntxov ntawm cov txheej txheem deformation, yog li nws feem ntau suav hais tias yog cov khoom siv "tawv".Toughness yog ib lo lus engineering uas txhais tau tias yog cov khoom muaj peev xwm deform (plasticically, tsis elastically) tsis tawg.
3.Fatigue Resistance: Polypropylene khaws nws cov duab tom qab ntau torsion, khoov, thiab / lossis flexing.Cov cuab yeej no tshwj xeeb tshaj yog muaj txiaj ntsig rau kev ua cov hinges nyob.
4.Insulation: polypropylene muaj qhov ua haujlwm siab heev rau hluav taws xob thiab muaj txiaj ntsig zoo rau cov khoom siv hluav taws xob.
5.Transmissivity: Txawm hais tias Polypropylene tuaj yeem ua pob tshab, nws yog ib txwm ua kom muaj xim tsis muaj xim.Polypropylene tuaj yeem siv rau cov ntawv thov uas qee qhov hloov pauv ntawm lub teeb yog qhov tseem ceeb lossis qhov twg nws muaj txiaj ntsig zoo nkauj.Yog tias xav tau kev hloov pauv siab, cov yas xws li Acrylic lossis Polycarbonate yog qhov kev xaiv zoo dua.
Polypropylene yog cais raws li "thermoplastic" (raws li tsis yog "thermoset") cov khoom uas yuav tsum tau ua nrog txoj kev yas teb rau cov cua sov.Cov ntaub ntawv thermoplastic ua kua ntawm lawv qhov chaw melting (kwv yees li 130 degrees Celsius nyob rau hauv rooj plaub ntawm polypropylene).
Ib qho txiaj ntsig tseem ceeb ntawm cov thermoplastics yog tias lawv tuaj yeem ua kom sov rau lawv qhov chaw melting, txias, thiab rov ua dua dua yam tsis muaj kev puas tsuaj loj.Es tsis txhob hlawv, cov thermoplastics zoo li polypropylene liquefy, uas tso cai rau lawv yooj yim txhaj molded thiab tom qab siv dua.
Los ntawm qhov sib txawv, cov thermoset yas tsuas tuaj yeem ua kom sov ib zaug xwb (feem ntau thaum lub sijhawm txhaj tshuaj molding).Thawj qhov cua sov ua rau cov ntaub ntawv thermoset teeb (zoo ib yam li 2-thooj epoxy) ua rau muaj kev hloov pauv tshuaj uas tsis tuaj yeem thim rov qab.Yog tias koj sim ua kom sov lub thermoset yas rau qhov kub siab thib ob nws yuav tsuas hlawv.Cov yam ntxwv no ua rau cov khoom siv thermoset tsis zoo rau kev rov ua dua tshiab.
Post lub sij hawm: Aug-19-2022