Nws yog fiber ntau tau los ntawm polymerization thiab yaj spinning los ntawm propylene li raw khoom. Polypropylene tau pib ua lag luam hauv xyoo 1957 thiab yog lub hnub qub nce hauv cov hluavtaws fibers. Vim tias polypropylene muaj qhov zoo ntawm cov txheej txheem tsim khoom yooj yim, cov khoom pheej yig, lub zog siab thiab lub teeb txheeb ze, polypropylene tau tsim sai heev. Tam sim no, polypropylene yog qhov thib plaub loj tshaj plaws ntawm cov hluavtaws fibers, thiab nws yog lub teeb fiber ntau ntawm cov tshuaj fiber ntau. Kev tsim cov polypropylene suav nrog staple fibers, filaments thiab split fibers. Polypropylene zaj duab xis fiber ntau yog tsim los ntawm thawj zaug ua polypropylene rau hauv zaj duab xis, thiab tom qab ntawd ncab cov zaj duab xis kom faib nws mus rau hauv lub network ntawm fibrils. Cov ntau yam ntawm polypropylene yog polypropylene filaments (xws li undeformed filaments thiab bulky deformed filaments), luv fibers, bristles, membrane split fibers, hollow fibers, tshwj xeeb-zoo li tus fibers, ntau yam puas fibers thiab non-woven fabrics. Kev siv tseem ceeb yog ua cov ntaub pua plag (xws li cov ntaub pua plag rov qab thiab suede), cov ntaub pua tsev ntaub, cov rooj tog zaum fabrics, ntau yam hlua, strips, nuv ntses nets, linoleum, lub tsev reinforcements, ntim cov ntaub ntawv thiab industrial fabrics, xws li lim ntaub, hnab ntaub tos. Lub quilt ua los ntawm polypropylene hollow fiber yog hnav, sov thiab muaj elasticity zoo. Hais txog xim sib txawv Tag nrho cov duab cov khoom raug coj mus rau hauv zoo, vim yog vim li cas xws li cov teeb pom kev zoo thiab cov cuab yeej siv tsawg, tej zaum yuav muaj xim txawv nrog cov khoom tiag.
Polypropylene yarn webbing tuaj yeem ua kom tsis muaj menyuam thiab ua kom tsis muaj menyuam ntawm qhov kub siab tshaj 100 ° C, thiab yuav tsis deform ntawm 150 ° C yam tsis muaj kev quab yuam sab nraud. Lub embrittlement kub yog -35 ° C, thiab embrittlement tshwm sim hauv qab -35 ° C, thiab qhov txias kuj tsis zoo li polyethylene. Cov kev tshaj tawm qhov tseem ceeb rau cov iav hloov pauv kub ntawm polypropylene yog 18qC, 0qC, 5 ° C, thiab lwm yam. Qhov no kuj yog vim tib neeg siv cov qauv sib txawv, uas muaj qhov sib txawv ntawm crystalline theem thiab amorphous theem, yog li cov saw ntev ntawm amorphous feem. nyob rau hauv cov saw molecular yog txawv. ua rau. Lub melting kub ntawm polypropylene yog li ntawm 40-50% siab tshaj polyethylene, txog 164-170 ° C, thiab melting point ntawm 100% isotactic polypropylene yog 176 ° C. Cov tshuaj stability ntawm polypropylene yog zoo heev. Ntxiv rau qhov raug corroded los ntawm concentrated sulfuric acid thiab concentrated nitric acid, nws yog ib qho ruaj khov rau lwm cov tshuaj reagents. Txawm li cas los xij, qis molecular hnyav aliphatic hydrocarbons, muaj ntxhiab hydrocarbons thiab chlorinated hydrocarbons tuaj yeem soften polypropylene. Nyob rau tib lub sijhawm, nws cov tshuaj lom neeg ruaj khov yog txhim kho nrog kev nce ntawm crystallinity, yog li polypropylene yog tsim los ua ntau yam tshuaj yeeb dej caw thiab fittings, thiab cov nyhuv anti-corrosion zoo. Nws yog vim muaj ntau cov ntsiab lus zoo uas lub luag haujlwm ntawm cov xov paj polypropylene yog ntau thiab ntau, thiab kev ua lag luam tau loj tuaj.