PE ubushyuhe bugabanuka ubumenyi bwa firime

Itondekanya rya LDPE ubushyuhe bugabanuka firime

LDPE ubushyuhe bugabanuka firime igabanyijemo ibyiciro bibiri: guhuza no kudahuza.Mubisanzwe, abayikora bakoresha ibikoresho bibisi hamwe na MFR ya 0.3-1.5g / 10min mugihe bakora firime idahuza LDPE ubushyuhe bugabanuka.Hasi yo gushonga indangagaciro, nuburyo bumwe bwo kugabanya imikorere.Kandi uko imbaraga zingana, niko bikwiriye gupakira.Bamwe mubakora bakoresha imiti ivura imirasire kugirango batezimbere ibintu bitandukanye bya firime zigabanuka.
PE ubushyuhe bugabanuka firime irashobora kuba yujuje ibisabwa mubicuruzwa byinshi, kandi niyo firime ikoreshwa cyane.MI ikoreshwa mubice bya LDPE ni 0.3-1.5g / min.Gupakira cyane bigabanya firime cyangwa kugabanya firime hamwe nimbaraga zisabwa cyane, koresha ibice bya LDPE bifite urugero ruto rwa MI, ubushyuhe bwa LDPE ni 130-180 ℃, mbere-gukonjesha hamwe nubukonje buri munsi ya 25 ℃, hanyuma ugahita wegera umurongo wubukonje, iyo Longitudinal irambuye kandi ihindagurika, igipimo cyo kurambura cyose gishobora kugera kuri 15-35, hanyuma firime ikazimya 10-25 ° C kugirango umuyaga cyangwa ugabanye firime.Igipimo rusange cyo kugabanuka ni 30% -50%.
Ibiranga ni:
1. Firime ya LDPE idahuzagurika yoroheje yoroheje, ifite imbaraga zo kurwanya ingaruka, kandi ifite imbaraga zamarira;
2. Kurwanya ubushyuhe buke;
3. Biroroshye gutunganya no gukora, byoroshye gushyushya igikapu;
4. Nta kugabanuka bibaho mugihe cyo kubika.Gupfunyika gupfunyika ibirahuri, ububumbyi, ibiryo, ibikoresho byubaka, imiti, pallet, nibindi. Ubunini bwibipfunyika byoroheje ni 0.02-0.06mm, naho ubunini bwibipfunyika binini kandi binini ni 0.075-0.25mm.

Ibyiza bya LDPE bigabanya firime:
1. Ubunini bwa firime ntoya ni 0.02-0.05mm, ubwoko buciriritse ni 0.05-0.10mm, naho ubwoko bwimbitse ni 0.10-0.15mm;
2. Imbaraga zingana ni 28-38MPa kubwoko buto, 20-30MPa kubwoko buciriritse, na 20-28MPa kubwoko bubyibushye;
3. Igabanuka ryubwoko buto ni 55% -65%, ubwoko buciriritse ni 45% -60%, ubwoko bwimbitse ni 30% -50%;kugabanuka ubushyuhe bwamavuta yo kwiyuhagira ni 110-120 ℃, umwuka ushyushye ni 170-180 ℃;
4. Igihe cyo kugabanuka ni 5-10s kubwoko buto na 20-30s kubwoko bunini.
Umubyimba ntarengwa wa firime yagabanutse kubipakira munsi ya 400 kg ni 120μm, 800kg ikenera uburebure bwa mm 150, naho ibicuruzwa 1200 kg bikenera firime ya LDPE igabanya ubugari bwa 200 mm.