Ukuhlukaniswa kwefilimu ye-LDPE encipha ukushisa
Amafilimu e-LDPE ancipha ukushisa ahlukaniswe izigaba ezimbili: axhumene futhi angaxhunywanga.Ngokuvamile, abakhiqizi basebenzisa izinto zokusetshenziswa ezine-MFR engu-0.3-1.5g/10min lapho bekhiqiza amafilimu angaxhumene nokushisa e-LDPE.Lapho inkomba yencibilika iphansi, kulapho ukusebenza kwe-shrinkage kufana khona.Futhi lapho amandla aqinile, afaneleka kakhulu ukupakisha.Abanye abakhiqizi basebenzisa ukwelashwa ngemisebe ekukhiqizeni ukuthuthukisa izakhiwo ezihlukahlukene zamafilimu ancipha ukushisa.
Ifilimu ye-PE eshrinkable ukushisa ingahlangabezana nezidingo zokupakishwa zezinto eziningi, futhi iyifilimu esetshenziswa kakhulu encishiswa ukushisa.I-MI esetshenziswa izinhlayiya ze-LDPE ngu-0.3-1.5g/min.Ukupakisha okusindayo kufinyeza ifilimu noma ifilimu eshwabene enezidingo zamandla aphezulu, sebenzisa izinhlayiya ze-LDPE ezinomkhawulo ophansi we-MI, izinga lokushisa lokubumba i-LDPE lingu-130-180 ℃, lipholile kuqala ngomoya obandayo ongaphansi kuka-25 ℃, bese uvuthela eduze komugqa wesithwathwa, kanye nokwelula kwe-Longitudinal kanye ne-transverse, isilinganiso esiphelele sokwelula singafinyelela ku-15-35, bese ifilimu icinywa ngo-10-25 ° C ukuze umoya noma unciphise ifilimu.Izinga lokuncipha elijwayelekile lingama-30% -50%.
Izici yilezi:
1. Ifilimu yokushwaqa ye-LDPE engaxhunywanga ithambile uma kuqhathaniswa, inokumelana nomthelela omuhle, futhi inamandla athile okudabula;
2. Ukumelana okuhle kwezinga lokushisa eliphansi;
3. Kulula ukucubungula nokwenza, kulula ukushisa isikhwama sokuvala;
4. Akukho ukuncipha okwenzekayo ngesikhathi sokugcina.Ukugoqa okunciphile kwengilazi, okobumba, ukudla, izinto zokwakha, amakhemikhali, amaphalethi, njll. Ugqinsi lwamaphakheji alula luyi-0.02-0.06mm, futhi ugqinsi lwephalethi elisindayo nelinkulu lingu-0.075-0.25mm.
Izici zefilimu ye-LDPE shrink:
1. Ugqinsi lwefilimu elizacile lingu-0.02-0.05mm, uhlobo oluphakathi luyi-0.05-0.10mm, kanti uhlobo oluwugqinsi luyi-0.10-0.15mm;
2. Amandla okuqina angama-28-38MPa ohlobo oluncane, 20-30MPa ohlobo oluphakathi, kanye no-20-28MPa ohlotsheni oluwugqinsi;
3. Izinga lokuncipha lohlobo oluncane lingu-55% -65%, uhlobo oluphakathi luyi-45% -60%, uhlobo oluwugqinsi luyi-30% -50%;Ibhavu likawoyela elinciphayo liyi-110-120 ℃, umoya oshisayo ngu-170-180 ℃;
4. Isikhathi sokuncipha singama-5-10s ohlotsheni oluncane kanye nama-20-30s ohlotsheni oluwugqinsi.
Ubukhulu obuncane befilimu eshwabene ukuze bufakwe ngaphansi kuka-400kg bungu-120μm, u-800kg udinga ukujiya okungu-150μm, kanti izimpahla ezingu-1200kg zidinga ifilimu eshwabene ye-LDPE enogqinsi luka-200μm.
Isikhathi sokuthumela: Aug-09-2022