Mafirimu akasiyana-siyana anowanzoshandiswa muupenyu hwezuva nezuva. Mafirimu aya anogadzirwa nezvinhu zvipi? Ndeapi maitiro ekuita kweumwe neumwe? Iyi inotevera sumo yakadzama yemafirimu epurasitiki anowanzoshandiswa muhupenyu hwezuva nezuva:
Firimu repurasitiki ifirimu rakagadzirwa ne polyvinyl chloride, polyethylene, polypropylene, polystyrene uye mamwe maresheni, anowanzo shandiswa mukurongedza, kuvaka, uye seyekuputira layer, nezvimwe.
Firimu yepurasitiki inogona kukamurwa kuita
-Industrial firimu: yakavhuvhuta firimu, calendered firimu, yakatambanudzwa firimu, rakakanda firimu, nezvimwe .;
- firimu rekurima rekurima, mulch firimu, nezvimwewo;
-Mafirimu ekuputira (kusanganisira mafirimu akaumbwa emishonga yekuputira, mafirimu akabatanidzwa ekurongedza chikafu, nezvimwewo).
Zvakanakira uye zvakaipira zvepurasitiki firimu:
Kuita maitiro emafirimu makuru epurasitiki:
Biaxially Oriented Polypropylene Firimu (BOPP)
Polypropylene is thermoplastic resin inogadzirwa ne polymerization yepropylene. Copolymer PP zvinhu zvine tembiricha yekupisa yakadzika (100 ° C), kujeka kwakaderera, kupenya kwakadzika, uye kusimba kwakadzika, asi zvine simba rakasimba rekuita, uye simba rekuita rePP rinowedzera nekuwedzera kwe ethylene yemukati. Iyo Vicat inopfavisa tembiricha yePP ndeye 150 ° C. Nekuda kwehupamhi hwekristaro, chinyorwa ichi chine kunaka kwakanyanya kuoma kwepamusoro uye scratch resistance properties. PP haina matambudziko ekupwanya kwezvakatipoteredza.
Biaxially oriented polypropylene firimu (BOPP) chinhu chakajeka chinochinjika chekutakura chakagadzirwa muma1960s. Inoshandisa yakasarudzika mutsara wekugadzira kusanganisa polypropylene mbishi zvinhu uye zvinoshanda zvekuwedzera, kunyungudusa nekuzvikanya mumashiti, wozoatambanudza kuita mafirimu. Inoshandiswa zvakanyanya mukurongedza kwechikafu, siwiti, fodya, tii, muto, mukaka, machira, nezvimwewo, uye ine mukurumbira we "Packaging Queen". Pamusoro pezvo, inogona zvakare kuiswa pakugadzirira kwepamusoro kukosha-yakawedzerwa zvigadzirwa zvinoshanda senge magetsi membranes uye microporous membranes, saka tarisiro yekusimudzira yemafirimu eBOPP yakakura kwazvo.
firimu reBOPP haringove nezvakanaka zvekushomeka kwakadzika, kunaka kwekudzivirira uye kunaka kwekupisa kwePP resin, asi zvakare ine yakanaka optical zvivakwa, yakakwira mechini simba uye yakapfuma masosi emidziyo. BOPP firimu rinogona kusanganiswa nezvimwe zvinhu zvine akakosha zvivakwa kuti uwedzere kuvandudza kana kuvandudza mashandiro. Zvinowanzoshandiswa zvinosanganisira PE firimu, salivating polypropylene (CPP) firimu, polyvinylidene chloride (PVDC), aruminiyamu firimu, nezvimwe.
Yakaderera Density Polyethylene Firimu (LDPE)
Polyethylene firimu, kureva PE, ine hunhu hwekudzivirira hunyoro uye kuderera kwemwando permeability.
Low-density polyethylene (LPDE) is a synthetic resin inowanikwa ne ethylene radical polymerization pasi pekumanikidzwa kwakanyanya, saka inonziwo "high-pressure polyethylene". LPDE imorekuru rine mapazi ane mapazi ehurefu hwakasiyana pacheni huru, ine angangoita gumi nemashanu kusvika makumi matatu ethyl, butyl kana matavi akareba pa1000 kabhoni maatomu mucheni huru. Nekuti iyo molecular cheni ine akawanda akareba uye mapfupi cheni dzemapazi, chigadzirwa chine yakaderera density, kupfava, kushoma tembiricha kuramba, yakanaka kukanganisa kuramba, yakanaka kugadzikana kwemakemikari, uye kazhinji acid kuramba (kunze kwakasimba oxidizing acids), Alkali, ngura yemunyu, ine zvakanaka. magetsi ekudzivirira zvinhu. Inopenya uye inopenya, ine yakanakisa kugadzikana kwemakemikari, kupisa kuvharika, kusamira kwemvura uye hunyoro kuramba, nechando kuramba, uye inogona kubikwa. Kukanganisa kwayo kukuru ndiko kuvharidzira kwakashata kuokisijeni.
Inowanzo shandiswa seyemukati firimu remukati rezvakasanganiswa zvinochinjika zvekurongedza zvinhu, uye zvakare ndiyo inonyanya kushandiswa uye inoshandiswa epurasitiki yekurongedza firimu parizvino, inoverengera inodarika makumi mana% yekushandiswa kwemafirimu ekurongedza epurasitiki. Kune akawanda marudzi emafirimu ekurongedza epolyethylene, uye maitiro avo akasiyana. Kuita kwefirimu re-single-layer harisi rimwe chete, uye kuita kwefirimu remubatanidzwa kunopindirana. Icho chinhu chikuru chekuputira chikafu. Chechipiri, firimu re polyethylene rinoshandiswawo mumunda weinjiniya yehurumende, senge geomembrane. Inoshanda senge isina mvura muinjiniya yehurumende uye ine yakaderera permeability. Firimu rekurima rinoshandiswa mune zvekurima, iro rinogona kukamurwa kuita rakadururwa firimu, mulch firimu, bitter cover film, green storage film and so.
Polyester firimu (PET)
Polyester firimu (PET), inowanzozivikanwa se polyethylene terephthalate, ipurasitiki yeinjiniya ye thermoplastic. Icho chinhu chemufirimu chakagadzirwa nemashizha akakora neextrusion uye ipapo biaxially yakatambanudzwa. Firimu rePolyester rinoratidzirwa neakanakisa emuchina zvivakwa, kuomarara kwepamusoro, kuoma uye kuomarara, kushomeka kwepuncture, friction resistance, tembiricha yepamusoro uye kushomeka kwekushisa, kupikisa kwemakemikari, kuramba kwemafuta, kusimba kwemhepo uye kuchengetedza kunhuhwirira. Imwe yeanogara akaumbwa firimu substrates, asi iyo corona kuramba haina kunaka.
Mutengo wefirimu repolyester wakakwira zvakanyanya, uye ukobvu hwayo hunowanzo 0.12 mm. Inowanzo shandiswa sechinhu chekunze chekurongedza chikafu chekurongedza, uye ine yakanaka kudhinda. Pamusoro pezvo, firimu repolyester rinowanzo shandiswa sekudhinda uye kurongedza zvinoshandiswa senge firimu rekuchengetedza kwezvakatipoteredza, PET firimu, uye mukaka chena firimu, uye rinoshandiswa zvakanyanya mumaindasitiri akadai segirazi fiber yakasimbiswa mapurasitiki, zvekuvaka, kudhinda, uye mushonga uye hutano.
Nylon plastiki firimu (ONY)
Zita remakemikari renaironi inonzi polyamide (PA). Parizvino, kune marudzi akawanda enaironi anogadzirwa mumaindasitiri, uye mhando huru dzinoshandiswa kugadzira mafirimu ndeayo naironi 6, naironi 12, naironi 66, zvichingodaro. Firimu renaironi ifirimu rakaoma kwazvo rine kujeka kwakanaka, kupenya kwakanaka, kusimba kwakanyanya uye kusimba kwesimba, uye kwakanaka kupisa kupisa, kutonhora kuramba, mafuta kuramba uye organic solvent resistance. Yakanakisa kupfeka kuramba uye kupuncture kuramba, yakapfava, yakanakisa okisijeni chipingamupinyi zvivakwa, asi yakashata chipingamupinyi zvivakwa kune mhute yemvura, yakakwira mwando kunyura uye mwando permeability, kushomeka kwekupisa, kwakakodzera kurongedza zvinhu zvakaoma, senge girisi Chikafu chepabonde, zvigadzirwa zvenyama, zvakakangwa. chikafu, vacuum-packed food, chikafu chinopisa, etc.
Cast Polypropylene Firimu (CPP)
Kusiyana neiyo biaxially oriented polypropylene firimu (BOPP) maitiro, iyo yakakandwa polypropylene firimu (CPP) isiri-yakatambanudzwa, isina-yakatarisana neflat extrusion firimu inogadzirwa nekunyungudika kukanda uye kudzimwa. Iyo inoratidzirwa nekukasira kugadzira kukurumidza, yakakwira kuburitsa, yakanaka firimu pachena, gloss, ukobvu kufanana, uye yakanakisa chiyero chezvakasiyana zvivakwa. Nekuti iri flat extruded firimu, yekutevera basa senge kudhinda uye kusanganisa iri nyore kwazvo. CPP inoshandiswa zvakanyanya mukurongedza machira, maruva, chikafu, uye zvinodiwa zvezuva nezuva.
Aluminium-yakavharwa firimu repurasitiki
Iyo firimu yealuminium ine zvese hunhu hwefirimu repurasitiki uye maitiro esimbi. Basa realuminium plating pamusoro pefirimu nderokudzivirira chiedza uye kudzivirira ultraviolet radiation, iyo haingorebesi hupenyu hwezviri mukati, asiwo inovandudza kupenya kwefirimu. Naizvozvo, firimu realuminium rinoshandiswa zvakanyanya mukubatanidza kurongedza, rinonyanya kushandiswa mukuomeswa uye kuputirwa chikafu chekurongedza senge mabhisikiti, pamwe nekurongedza kwekunze kweimwe mishonga uye zvekuzora.
Nguva yekutumira: Jul-19-2023
