Cov polypropylene fibers muaj ob qho kev siv tseem ceeb hauv cov pob zeb ua vaj tse:
1) Tiv thaiv cov yas tawg hauv cov pob zeb ua vaj tse.
Thaum lub sijhawm teeb tsa thiab ua kom cov pob zeb khov kho, dej ntws saum npoo av tuaj yeem ua rau cov yas ntsws thiab tawg. Ntxiv cov polypropylene fibers rau hauv cov pob zeb tuaj yeem tiv thaiv cov kab nrib pleb no. Vim yog qhov qis dua elastic modulus ntawm polypropylene fibers piv rau cov pob zeb khov kho, qhov kev txhim kho hauv kev tiv thaiv kab nrib pleb (kab nrib pleb los ntawm kev kub ntxhov lossis kev thauj khoom) ntawm cov pob zeb khov kho yog txwv, thiab qhov kev txhim kho hauv tensile thiab flexural lub zog tsis tseem ceeb, uas muaj qee qib ntawm kev txhim kho hauv cov pob zeb tawv.
2) Txhim kho qhov hluav taws kub ntawm cov pob zeb ua vaj tse uas tawv. Nyob rau hauv qhov kub siab, cov polypropylene fibers yuav ua ntej mos thiab hlawv tawm, tsim ntau lub qhov hauv cov pob zeb ua vaj tse. Cov dej uas tau ua pa los ntawm qhov kub siab hauv cov pob zeb ua vaj tse tuaj yeem tso tawm raws cov qhov no, tiv thaiv kev tsim ntawm lub siab siab sab hauv vim yog dej ua pa thiab ua rau cov pob zeb tawg, yog li txhim kho lub sijhawm tiv thaiv hluav taws thiab qib ntawm cov pob zeb ua vaj tse.
Cov fibers polypropylene tuaj yeem muab faib ua cov fibers ntev, cov fibers luv, cov ntaub spunbond tsis-woven, cov ntaub yaj tsis-woven, thiab lwm yam.
(1) Sib dua
Qhov ceev ntawm polypropylene fiber yog 0.90-0.92 g / cm, uas yog qhov sib dua ntawm txhua cov tshuaj fiber, 20% sib dua li nylon, 30% sib dua li polyester, thiab 40% sib dua li viscose fibers. Yog li ntawd, nws yog qhov tsim nyog heev rau kev siv ua cov khoom ntim rau khaub ncaws lub caij ntuj no lossis ua cov ntaub rau kev caij ski, roob, thiab lwm yam khaub ncaws.
(2) Lub zog siab, zoo elasticity, hnav tsis kam, thiab corrosion tsis kam
Polypropylene muaj lub zog siab (zoo ib yam li thaum qhuav thiab ntub dej) thiab yog cov khoom siv zoo tshaj plaws rau kev tsim cov ntses nuv ntses thiab cov xov hlau; Kev hnav tsis kam zoo thiab kev ywj pheej, zoo ib yam li polyester thiab nylon, nrog rau qhov rov qab zoo ib yam li nylon thiab ntaub plaub, siab dua li polyester thiab viscose fibers; Polypropylene muaj qhov ruaj khov tsis zoo, yooj yim rau pilling thiab deformation, tiv taus cov kab mob me me, thiab tsis ua rau puas tsuaj; Kev tiv thaiv tshuaj lom neeg zoo dua li cov fibers dav dav.
(3) Muaj cov khoom siv hluav taws xob rwb thaiv tsev thiab khaws cia sov
Polypropylene fiber muaj lub zog hluav taws xob siab (7 × 10 Ω. cm) thiab lub zog thermal conductivity qis. Piv nrog rau lwm cov tshuaj fibers, polypropylene fiber muaj lub rwb thaiv hluav taws xob zoo tshaj plaws thiab khaws cia sov, tab sis nws yooj yim tsim hluav taws xob zoo li qub thaum lub sijhawm ua.
(4) Kev ua haujlwm tsis zoo thaum tshav kub thiab kev laus
Cov xov polypropylene muaj qhov melting point qis (165-173 ℃) thiab tsis ruaj khov rau lub teeb thiab cua sov. Yog li ntawd, cov xov polypropylene tsis muaj cua sov tsis zoo, tsis kam laus, thiab tsis tiv taus ironing. Txawm li cas los xij, cov khoom tiv thaiv kev laus tuaj yeem txhim kho los ntawm kev ntxiv cov neeg sawv cev tiv thaiv kev laus thaum lub sijhawm tig.
(5) Kev nqus dej noo tsis zoo thiab cov yam ntxwv tsis zoo
Cov khoom siv polypropylene uas nqus tau dej noo thiab zas xim yog qhov phem tshaj plaws ntawm cov tshuaj fibers, yuav luag tsis muaj kev nqus dej noo thiab tus nqi rov qab tau dej noo tsawg dua 0.03%. Cov polypropylene denier zoo muaj lub zog nqus dej hauv paus, thiab cov pa dej tuaj yeem raug tshem tawm los ntawm cov hlab ntsha hauv cov fibers. Tom qab ua rau hauv khaub ncaws, qhov xis nyob ntawm cov khaub ncaws zoo dua, tshwj xeeb tshaj yog nrog cov fibers polypropylene zoo heev. Vim yog thaj chaw ntawm qhov chaw nce ntxiv, hws tuaj yeem kis tau sai dua, ua rau daim tawv nqaij xis nyob. Vim yog qhov tsis nqus dej noo thiab tus nqi qis ntawm cov fibers, cov ntaub polypropylene muaj cov yam ntxwv ntawm kev ntxuav yooj yim thiab ziab sai.
Polypropylene muaj cov yam ntxwv zas xim tsis zoo, xim sib dua, thiab zas xim tsis ruaj khov. Cov roj ib txwm tsis tuaj yeem zas nws, thiab feem ntau cov xim polypropylene fibers yog tsim los ntawm kev zas xim ua ntej tig. Cov khoom siv raw zas xim thiab kev hloov kho fiber tuaj yeem siv, thiab cov neeg sawv cev roj tuaj yeem sib xyaw ua ntej yaj tig.