Qee qhov tseem ceeb tshaj plaws ntawm polypropylene yog:
1. Kev Tiv Thaiv Tshuaj: Cov hauv paus thiab cov kua qaub uas tau diluted tsis yooj yim rau polypropylene, uas ua rau nws yog qhov kev xaiv zoo rau cov thawv ntawm cov kua xws li, xws li cov neeg ua haujlwm ntxuav, cov khoom siv kho mob thawj zaug, thiab ntau ntxiv.
2. Kev ywj pheej thiab kev tawv: Polypropylene yuav ua haujlwm nrog elasticity dhau qee qhov kev hloov pauv (zoo li txhua yam khoom siv), tab sis nws kuj tseem yuav muaj kev hloov pauv yas thaum ntxov hauv cov txheej txheem hloov pauv, yog li nws feem ntau suav hais tias yog cov khoom siv "tawv". Kev tawv yog ib lo lus engineering uas txhais tau tias yog lub peev xwm ntawm cov khoom siv los hloov pauv (plastically, tsis yog elastically) yam tsis tawg.
3. Kev Tiv Thaiv Kev Qaug Zog: Polypropylene tseem khaws nws cov duab tom qab ntau qhov kev sib hloov, kev khoov, thiab / lossis kev khoov. Cov yam ntxwv no muaj txiaj ntsig zoo rau kev ua cov pob qhov rooj uas muaj sia nyob.
4. Kev rwb thaiv tsev: polypropylene muaj kev tiv thaiv hluav taws xob siab heev thiab muaj txiaj ntsig zoo rau cov khoom siv hluav taws xob.
5. Kev Sib Kis: Txawm hais tias Polypropylene tuaj yeem ua kom pob tshab, nws feem ntau tsim kom muaj xim tsis pom tseeb. Polypropylene tuaj yeem siv rau cov ntawv thov uas qee qhov kev hloov pauv ntawm lub teeb yog qhov tseem ceeb lossis qhov twg nws muaj txiaj ntsig zoo nkauj. Yog tias xav tau kev sib kis siab ces cov yas xws li Acrylic lossis Polycarbonate yog cov kev xaiv zoo dua.
Polypropylene yog ib yam khoom siv "thermoplastic" (piv rau "thermoset") uas yog vim li cas cov yas thiaj teb rau cua sov. Cov khoom siv thermoplastic yuav ua kua thaum lawv yaj (kwv yees li 130 degrees Celsius hauv polypropylene).
Ib qho tseem ceeb ntawm cov thermoplastics yog tias lawv tuaj yeem raug cua sov rau lawv qhov chaw yaj, txias, thiab rov ua kom sov dua yam tsis muaj kev puas tsuaj loj. Hloov chaw hlawv, cov thermoplastics zoo li polypropylene liquefy, uas tso cai rau lawv kom yooj yim txhaj tshuaj pwm thiab tom qab ntawd rov ua dua tshiab.
Los ntawm qhov sib piv, cov yas thermoset tsuas yog tuaj yeem ua kom sov ib zaug xwb (feem ntau thaum lub sijhawm txhaj tshuaj molding). Qhov cua sov thawj zaug ua rau cov khoom thermoset teeb (zoo ib yam li epoxy 2-ntu) ua rau muaj kev hloov pauv tshuaj uas tsis tuaj yeem thim rov qab. Yog tias koj sim ua kom cov yas thermoset sov rau qhov kub siab dua zaum ob nws yuav tsuas yog hlawv. Tus cwj pwm no ua rau cov khoom thermoset tsis zoo rau kev siv dua.
Lub sijhawm tshaj tawm: Lub Yim Hli-19-2022