Polypropylene yog nyob rau hauv lub luag hauj lwm ntawm catalysts los ntawm kub kub tawg ntawm roj av polymerization thiab tsim, raws li cov sib txawv zaj duab xis ua txoj kev yuav tau txais los ntawm txawv kev ua tau zoo ntawm cov zaj duab xis, feem ntau yog siv feem ntau hom phiaj BOPP, matte BOPP, pearlescent zaj duab xis. , Thaum tshav kub kub-sealed BOPP, flow-delayed CPP, tshuab moulding IPP, thiab hais txog. Nyob rau hauv cov ntaub ntawv no, ib tug luv luv tsom xam ntawm cov hom ntawm cov yeeb yaj duab luam ntawv, lub hnab ua tau zoo.
1. lub hom phiaj BOPP zaj duab xis
BOPP zaj duab xis yog ua tiav kom lub amorphous ib feem los yog ib feem ntawm cov crystalline zaj duab xis nyob rau hauv lub softening taw tes saum toj no lub longitudinal thiab transverse cov lus qhia tau stretched, thiaj li hais tias cov zaj duab xis nto cheeb tsam nce, lub thickness ntawm lub thinning, gloss thiab transparency tau zoo heev. Nyob rau tib lub sij hawm, vim stretching molecular orientation, nws mechanical zog, airtightness, noo noo barrier, txias tsis kam thiab lwm yam tau zoo heev.
Cov yam ntxwv ntawm BOPP zaj duab xis:
Lub zog tensile siab, siab modulus ntawm elasticity, tab sis tsis tshua muaj kua muag zog; zoo rigidity, zoo extensibility thiab khoov qaug zog kuj; kub kub thiab txias tsis kam, kev siv kub yuav siab li 120 degree, BOPP txias kuj tseem siab dua cov PP zaj duab xis dav dav; siab nto gloss, zoo transparency, haum rau siv raws li ntau yam khoom ntim; BOPP zoo tshuaj stability, ntxiv rau cov acids muaj zog, xws li fuming sulfuric acid, nitric acid, uas muaj corrosive rau nws! Ntxiv rau cov kua qaub uas muaj zog, xws li fuming sulfuric acid, nitric acid muaj cov nyhuv corrosive rau nws, insoluble hauv lwm cov kuab tshuaj, tsuas yog qee cov hydrocarbons muaj cov nyhuv o ntawm nws; cov dej tsis zoo, yog ib qho ntawm cov khoom siv zoo tshaj plaws rau kev tiv thaiv dej noo, nqus dej<0.01%; poor printability, so the surface corona treatment must be carried out before printing, printing effect after treatment is good; static electricity is high, the application of resin used for the production of films need to be added to the antistatic agent.
2. matte BOPP
Matte BOPP txheej txheej yog tsim los ua matte txheej, kom cov tsos ntawm cov ntawv zoo li ntawv, xis nyob. Matte nto txheej feem ntau tsis siv rau kev sib khi, vim tias muaj cov txheej txheem matte, piv nrog BOPP dav dav, muaj cov yam ntxwv hauv qab no: matte txheej txheej tuaj yeem ua lub luag haujlwm hauv shading, lub ntsej muag gloss kuj txo qis heev; matte txheej tuaj yeem siv los ua lub tshav kub sealing nto thaum tsim nyog; matte nto txheej nplua thiab zoo, vim hais tias ntawm qhov chaw roughening nrog anti-adhesive, zaj duab xis tsis yooj yim rau yob adhesion; matte zaj duab xis tensile lub zog ntau dua li cov yeeb yaj kiab dav dav yog me ntsis qis dua qhov thermal stability yog hu ua BOPP zoo tib yam me ntsis.
3. Pearlescent zaj duab xis
Pearlescent zaj duab xis rau daim ntawv thov ntawm PP raws li raw cov ntaub ntawv, ntxiv CaCO3 thiab pearlescent pigments, roj hmab hood modifiers, tov los ntawm ob-directional stretching thiab ua. Raws li nyob rau hauv ob-directional stretching txheej txheem, PP resin molecules yog stretched, thiab CaCO3 hais yog stretched qhib qhov kev ncua deb ntawm ib leeg, yog li tsim ib tug pore npuas, yog li pearlescent zaj duab xis yog ib tug microporous ua npuas ncauj zaj duab xis, qhov ntom ntawm 0 .7g/cm³ los yog li ntawd.
PP molecules los ntawm biaxial orientation tom qab poob ntawm tshav kub-sealable, tab sis raws li roj hmab thiab lwm yam modifiers tab sis tseem muaj ib tug tej yam degree ntawm tshav kub-sealability, tab sis lub tshav kub sealing zog yog tsawg heev, yooj yim los tsim kua muag, feem ntau siv nyob rau hauv ice cream, popsicles. thiab lwm yam ntim.
4. Thaum tshav kub kub sealing BOPP zaj duab xis
Ob chav sided tshav kub sealing zaj duab xis:
Zaj duab xis no yog ABC qauv, A, C ob sab rau cov txheej txheem kub sealing. Feem ntau yog siv los ua cov khoom ntim khoom noj, textiles, audio thiab video khoom.
Single-sab tshav kub sealable zaj duab xis:
Cov yeeb yaj kiab no yog ABB qauv, Ib txheej yog cov txheej txheem cua sov sealing. Tom qab luam tawm cov qauv ntawm B sab, nws yog laminated nrog PE, BOPP thiab txhuas ntawv ci los ua lub hnab, uas yog siv los ua cov khoom ntim qib siab rau zaub mov, dej haus thiab tshuaj yej.
5. CPP zaj duab xis
Cam khwb cia CPP polypropylene zaj duab xis yog ib yam uas tsis yog-stretching, uas tsis yog-directional polypropylene zaj duab xis.
CPP zaj duab xis yog tus cwj pwm los ntawm qhov siab pob tshab, zoo flatness, zoo kub tsis kam, ib qho kev nruj nruj tsis tau poob yooj, zoo kub sealability. Homopolymerised CPP muaj qhov nqaim ntawm qhov kub thiab txias, yog nkig, thiab tsim nyog siv los ua ib txheej ntim zaj duab xis.
Co-polymerised CPP muaj qhov sib npaug ntawm kev ua haujlwm thiab tsim nyog siv los ua cov txheej hauv cov yeeb yaj kiab sib xyaw. Tam sim no, feem ntau co-extruded CPP, tuaj yeem siv tag nrho cov yam ntxwv ntawm ntau yam polypropylene ua ke, kom cov kev ua tau zoo ntawm CPP ntau dua.
6. Tshuab IPP zaj duab xis
IPP tshuab tshuab feem ntau yog tsim los ntawm kev tshuab, PP nyob rau hauv lub nplhaib tuag lub qhov ncauj extrusion tom qab tshuab, los ntawm lub nplhaib cua tom qab pib txias tam sim ntawd los ntawm cov dej ceev ceev txias thiab shaping, ziab thiab ces dov, cov khoom tiav yog ib lub tog raj kheej zaj duab xis. , tab sis kuj tuaj yeem txiav los ua ib daim ntawv ntawm zaj duab xis. Tshuab moulding IPP muaj cov pob tshab zoo, zoo rigidity, yooj yim lub hnab ua, tab sis nws cov thickness uniformity tsis zoo, zaj duab xis flatness tsis zoo txaus.
