2, Kushandiswa chaiko kwePVDC composite membrane muChina:
China yakatanga kushandiswa kunoshanda kwePVDC resin kubvira kutanga kwema1980.Kutanga, kuzvarwa kwesausage ham kwakaunza firimu rePVDC muChina.Ipapo makambani eChinese akatyora kuvharika kweUnited States neJapan pane tekinoroji iyi uye akaunza tekinoroji yekugadzira uye michina yePVDC firimu.Nekukura kuri kuramba kuchienderera mberi kwehupfumi hwenyika hweChina uye nekuvandudzwa kwezvinhu zvevanhu uye hupenyu hwetsika, mwero wekudiwa kwekurongedza uri kuwedzerawo.Kuwedzera uye kuwedzera kushanda kurongedza kunoshandiswa zvakanyanya mune ese maficha ehupfumi hwenyika nemararamiro evanhu.PVDC inotungamira mukuzadzisahigh barrier packagingchimiro chemari inoshanda uye yakavimbika mwando, okisijeni uye hwema chipingamupinyi.
Sezvo munhu wese aine ruzivo rwakawanda rwePVDC casing film, pano isu tichatarisa pane tekinoroji nzira uye zvimiro zvePVDC composite firimu.Iyo firimu inoumbwa inogadzirisa kukanganisa kwechinhu chimwe nechimwe, inopa kutamba kwakazara kune kwayo kwakanakisa kuita, uye ine hunhu husina chinhu chimwe chete.Nzira dzakajairika dzakaumbwa dzePVDC:
Coating, yakaoma, solvent-isina, inopisa-yakanyunguduka, co-extrusion, etc. Parizvino, kugadzirwa kwemumba kwePVDC composite firimu kunonyanya kutora nzira yekupfeka, yakaoma nzira, solvent-isina uye co-extrusion nzira:
1) PVDC yekuputira firimu
PVDC latex coating inoshandiswa pamusoro peiyo substrate (OPP, PA, PE, PET, nezvimwewo) kuti iite firimu rinobatanidza kuti rivandudze gasi rinodzivisa kushanda kwe substrate.Performance maitiro:
Chipingamupinyi chakanaka;Ukobvu hwePVDC layer hunowanzo 2 ~ 3um, nemutengo wakaderera;Haikwanise kumira kupisa kwepamusoro kubika.
2) PVDC laminated composite membrane
Iyo inoumbwa neakawanda-single-layer mafirimu, uye imwe neimwe layer inosungirirwa nekunamira.Inogona kukamurwa kuva:
Dry (solvent) lamination uye solvent-isina lamination.
Performance maitiro:
A. Withyakakwirira chipingamupinyi pfuma uye inochinjika chimiro, inogona kusanganiswa neBOPA, CPP, CPE, BOPP, BOPET, PVC nemamwe mafirimu (somuenzaniso, BOPP, PET, PA inogona kushandiswa seyekunze yekudhinda dhizaini, PE, CPP uye zvimwe zvakanaka zvekuisa chisimbiso zvinopisa zvinogona kushandiswa. sechisimbiso chekuisa chisimbiso, PA yakanaka puncture kuramba inogona kushandiswa seye puncture resistance layer, uye PVDC inogona kushandiswa sechivhariso chivharo kuvharisa okisijeni nemvura).
B. Kuramba kwakanaka kwekushisa.Inogona kugadzirwa kuita tembiricha yepamusoro uye yakaderera tembiricha inopikisa structural composite firimu ine tembiricha kuramba - 20 ℃ ~ 121 ℃;
Yakanaka michina uye yekudziya-kuvharisa zvivakwa, inokodzera akasiyana emichina yekurongedza, kudhinda kwemavara, inoganhurwa nefirimu rimwechete, panguva iyi ukobvu hwega hwega haugone kutetepa uye huwandu hwematanho akaumbwa haafanire kunge akawandisa (kazhinji kwete kupfuura. kupfuura 5 layer).
3) PVDC multilayer co-extruded composite firimu
Mapurasitiki akasiyana-siyana anobudiswa neakawanda extruder panguva imwe kuburikidza nemusoro wekufa kuti aite firimu rine kurongeka kwakarongeka, pachena interlayer kubudiswa, kusungirirwa zvakasimba uye kuwirirana kwe interlayer ukobvu.Zvinoenderana neakasiyana ekuumba nzira, inogona kukamurwa kuita co-extrusion blown film uye co-extrusion cast film.PVDC zvinhu zvinowanzo shandiswa seyepakati barriers layer yecomposite firimu.Maitiro ekuita: chipingamupinyi chakakwirira, hutsanana hwakanaka, resin yakanamatira inoshandiswa pakubatanidza, kudzivisa dambudziko rekunyungudutsa zvakasara mucomposite yakaoma (solvent-based), uye inogona kubikwa pasi pe100 degrees;Iyo firimu inogona kugadziriswa neyechipiri yekupisa kuumba nekushandisa kuyerera kwebazi rekugadzira;Kune akawanda akaturikidzana anogona kugadzirwa, uye ikozvino asvika gumi nematatu.Iyo interlayer ukobvu inogona kuitwa yakatetepa kwazvo, iyo inogona kuchengetedza huwandu hweresin nemutengo wakakwira uye kuwana imwe yehupfumi mutengo kuita.
Nguva yekutumira: Jun-06-2023