Polypropylene yog dab tsi? - Cov khoom, kev siv thiab cov txiaj ntsig ntawm Polypropylene
Polypropylene (PP) yog dab tsi? Polypropylene yog ib qho thermoplastic polymer ua los ntawm cov polymerization ntawm propylene monomers thiab yog ib qho ntawm cov khoom siv dav siv hauv ntiaj teb. Vim nws cov khoom siv tshuaj lom neeg thiab lub cev tshwj xeeb, polypropylene tuav txoj haujlwm tseem ceeb hauv kev lag luam, kev kho mob, tsev neeg thiab cov ntawv ntim khoom noj. Nyob rau hauv tsab xov xwm no, peb ua tib zoo saib ntawm cov yam ntxwv ntawm polypropylene, nws cov kev siv tseem ceeb thiab nws cov txiaj ntsig.
Cov yam ntxwv tseem ceeb ntawm polypropylene
Polypropylene yog dab tsi? Nyob rau hauv cov nqe lus ntawm cov qauv tshuaj, polypropylene yog ib tug polymer tsim los ntawm ntxiv polymerization ntawm propylene monomers. Nws cov qauv molecular yog symmetrically thiab feem ntau muaj nyob rau hauv ib daim ntawv semi-crystalline. Qhov no symmetry thiab crystalline qauv muab polypropylene ib tug xov tooj ntawm zoo heev lub cev lub cev, xws li ib tug siab melting point, tsawg ceev thiab zoo tshuaj stability. Polypropylene lub melting point feem ntau yog nyob nruab nrab ntawm 130 ° C thiab 171 ° C, uas tso cai rau nws nyob twj ywm morphologically ruaj ntawm qhov kub thiab txias. Nrog rau qhov ceev ntawm kwv yees li 0.9 g / cm³, polypropylene yog sib dua li ntau lwm yam yas xws li polyethylene thiab muaj kev tiv thaiv corrosion zoo heev.
Cov ntawv thov tseem ceeb rau polypropylene
Polypropylene yog dab tsi? Dab tsi yog nws cov ntawv thov hauv ntau qhov kev lag luam? Vim nws cov khoom sib txawv, polypropylene yog siv rau ntau yam kev siv. Hauv kev lag luam ntim khoom, polypropylene siv ntau ntau rau cov khoom xws li ntim khoom noj, lub kaus mom thiab zaj duab xis. Nws cov tshuaj tiv thaiv thiab dej tsis kam ua rau nws zoo tagnrho rau kev ntim khoom noj, ua kom cov zaub mov muaj kev nyab xeeb thiab txee lub neej. Hauv cov khoom vaj khoom tsev hauv tsev, polypropylene yog siv los ua cov rooj tog zaum, ntim thiab textiles, thiab lwm yam, vim nws lub teeb yuag thiab kav ntev, nrog rau nws yooj yim ntawm kev tu thiab tu. Tsis tas li ntawd, hauv kev lag luam kev noj qab haus huv, polypropylene yog siv los tsim cov koob txhaj tshuaj, cov raj kuaj thiab lwm yam khoom siv kho mob pov tseg vim nws cov biocompatibility zoo thiab cov khoom siv tshuaj tua kab mob.
Polypropylene Cov txiaj ntsig thiab kev txhim kho yav tom ntej
Thaum nws los txog rau polypropylene yog dab tsi, nws cov txiaj ntsig tseem ceeb tshaj plaws suav nrog kev kub thiab tshuaj lom neeg, nrog rau cov nqi tsim khoom tsawg. Polypropylene lub siab melting point tso cai rau nws siv nyob rau hauv lub kub kub tsis muaj teeb meem ntawm distortion los yog melting. Nws cov tshuaj tiv thaiv zoo heev tso cai rau polypropylene nyob ruaj khov thiab tsis corrode thaum raug cov kua qaub, alkalis thiab cov kuab tshuaj organic. Polypropylene cov txheej txheem tsim khoom yooj yim thiab tus nqi qis tau ua rau nws siv dav hauv ntau yam khoom hauv lub neej txhua hnub.
Raws li kev paub txog ib puag ncig loj hlob, polypropylene qhov rov ua dua tshiab tau dhau los ua qhov txiaj ntsig tseem ceeb. Cov cuab yeej siv niaj hnub no tso cai rau kev rov ua dua ntawm cov ntaub ntawv pov tseg polypropylene, uas txo cov khoom pov tseg thiab ib puag ncig cov pa phem. Yog li ntawd, kev txhim kho yav tom ntej ntawm cov ntaub ntawv polypropylene yuav tau them nyiaj ntau dua rau kev tiv thaiv ib puag ncig thiab kev ruaj ntseg, thiab ntxiv dag zog rau nws cov kev ua tau zoo thiab kev siv tau los ntawm kev siv technology tshiab.
Xaus
Cov khoom siv polypropylene yog dab tsi? Cov ncauj lus kom ntxaws hauv daim ntawv no qhia tau hais tias polypropylene yog cov thermoplastic polymer nrog ntau yam kev siv thiab ntau yam khoom zoo heev. Nws cov ntsiab lus siab melting, tshuaj tiv thaiv, lub teeb yuag, thiab tus nqi qis ua rau nws tseem ceeb hauv ntau qhov kev lag luam. Nrog rau txoj kev loj hlob ntawm ib puag ncig tus phooj ywg thev naus laus zis, polypropylene yog npaj rau kev siv ntau dua yav tom ntej. Yog tias koj tab tom nrhiav kev ua haujlwm siab thiab pheej yig cov khoom siv yas, polypropylene yeej yog ib qho kev xaiv tsim nyog xav txog.