Dab tsi yog cov khoom siv raw rau PP woven hnab

Lub ntsiab raw khoom rau PP woven hnab yog polypropylene (PP), siab -molecular polymer ua los ntawm propylene monomers los ntawm polymerization. Vim nws cov nqi siab -kev ua tau zoo, cov khoom siv kho tshuab zoo, thiab kev ua haujlwm yooj yim, nws tau dhau los ua cov khoom siv rau kev tsim cov hnab ntim khoom. Polypropylene raw cov ntaub ntawv feem ntau muaj nyob rau hauv daim ntawv granular thiab tuaj yeem muab faib ua homopolymer polypropylene thiab copolymer polypropylene raws li cov txheej txheem ntau lawm. Homopolymer polypropylene feem ntau yog siv rau hauv lub hnab ntim khoom vim nws cov rigidity ntau dua thiab lub zog tensile. Nyob rau hauv cov txheej txheem ntau lawm, polypropylene granules yog thawj rhuab thiab melted nyob rau hauv ib tug extruder, ces extruded rau hauv ib zaj duab xis los ntawm ib tug tuag. Cov yeeb yaj kiab no yog tom qab ntawd txiav thiab ncab los ua cov filaments ca (los yog fibers). Cov filaments no tom qab woven rau hauv tubular los yog daim ntawv -zoo li cov ntaub hauv paus, thiab tom qab ntawd sewn los yog sib koom ua ke los ua lub hnab ntim zaum kawg. Qhov zoo ntawm PP woven hnab muaj xws li lub teeb yuag, acid thiab alkali tsis kam, noo noo thiab mildew tsis kam, thiab siab tensile zog. Cov khoom no ua rau lawv siv dav hauv kev ntim khoom thiab kev thauj mus los ntawm cov ntaub ntawv loj xws li nplej, chiv, tshuaj lom neeg, thiab khoom siv hauv tsev. Tsis tas li ntawd, raws li cov thermoplastic, polypropylene muaj qee qhov kev rov ua dua tshiab thiab tuaj yeem rov ua dua los ntawm yaj-re- cov txheej txheem granulation, ua tau raws li kev tiv thaiv ib puag ncig. Txawm li cas los xij, PP woven hnab yog nquag rau kev laus thiab tawg nyob rau hauv lub sij hawm raug ultraviolet lub teeb. Yog li ntawd, qee lub hnab sab nraum zoov tau ntxiv UV stabilizers kom ntev lawv lub neej. Nrog rau kev txhim kho thev naus laus zis, txhim kho cov ntaub ntawv polypropylene xws li hloov kho PP lossis muab tub lim masterbatches kuj tau siv los txhim kho cov khoom tshwj xeeb ntawm cov hnab woven, xws li kev txhim kho huab cua tiv thaiv lossis txhais tes. Zuag qhia tag nrho, cov yam ntxwv ntawm polypropylene raw cov ntaub ntawv txiav txim qhov sib npaug ntawm functionality, applicability, thiab kev lag luam nyob rau hauv PP woven hnab, ua rau lawv ib tug indispensable khoom nyob rau hauv lub ntiaj teb no ntim kev lag luam.