Mumakore achangopfuura, kukoshesa kwepasirese kusimba kwakawedzera muindasitiri yekurongedza. Mafirimu epurasitiki echinyakare, akadai sePET (Polyethylene Terephthalate), akatonga kwenguva refu nekuda kwekugara uye kuita zvakasiyana. Nekudaro, kushushikana pamusoro pekukanganisa kwavo kwezvakatipoteredza kwakatungamira kufarirabiodegradable filmdzimwe nzira dzakadai seCellophane uye PLA (Polylactic Acid). Ichi chinyorwa chinopa kuenzanisa kwakadzama pakati pemafirimu anodegradable uye echinyakare PET mafirimu, achitarisa kuumbwa kwawo, kukanganisa kwezvakatipoteredza, kuita, uye mutengo.
Kuumbwa Kwezvinhu uye Kwakabva
Traditional PET Firimu
PET inogadzirwa nepurasitiki resin inogadzirwa kuburikidza ne polymerization ye ethylene glycol uye terephthalic acid, iyo yose inotorwa kubva mumafuta asina kuchena. Sechinhu chinotsamira zvachose pamafuta asingadzokerikezve, kugadzirwa kwayo kunonyanya kushandisa simba uye inobatsira zvakanyanya kuburitsa kabhoni pasi rose.
Biodegradable Film
-
✅Cellophane Firimu:Cellophane firimuifirimu rebiopolymer rakagadzirwa kubva patsva cellulose, inonyanya kucheneswa kubva muhuni pulp. Ichi chinyorwa chinogadzirwa uchishandisa zviwanikwa zvinogoneka senge huni kana bamboo, izvo zvinopa kune yayo inogoneka chimiro. Maitiro ekugadzira anosanganisira kunyungudutsa cellulose mune alkali mhinduro uye kabhoni disulfide kugadzira viscose mhinduro. Iyi mhinduro inobva yawedzerwa kuburikidza nekacheka katete uye inogadzirwazve mufirimu. Nepo nzira iyi iri pakati nepakati-inoshandisa simba uye yagara ichisanganisira kushandiswa kwemakemikari ane njodzi, nzira nyowani dzekugadzira dziri kugadzirwa kuti dzideredze kukanganisa kwezvakatipoteredza uye kugadzirisa kusimba kwese kwekugadzirwa kwe cellophane.
-
✅PLA Film:PLA firimu(Polylactic Acid) inonzi thermoplastic biopolymer inotorwa kubva kulactic acid, iyo inowanikwa kubva kune zvinogonekazve zviwanikwa zvakaita sechibage starch kana nzimbe. Ichi chinyorwa chinozivikanwa seimwe nzira inogoneka kune echinyakare mapurasitiki nekuda kwekuvimba kwayo nekurima feedstocks kwete fossil mafuta. Kugadzirwa kwePLA kunosanganisira kuviriswa kweshuga dzezvirimwa kuti dzigadzire lactic acid, iyo inobva yaitwa polymer kuita biopolymer. Kuita uku kunopedza mafuta efossil zvishoma kana zvichienzaniswa nekugadzirwa kwepetroleum-based plastics, zvichiita kuti PLA ive sarudzo ine hushamwari.
Environmental Impact
Biodegradability
-
Cellophane: Yakazara biodegradable uye compostable mumba kana maindasitiri mamiriro ecompost, kazhinji inodzikisira mukati memazuva makumi matatu-90.
-
PLA: Biodegradable pasi pemaindasitiri composting mamiriro (≥58 ° C uye yakakwirira humidity), kazhinji mukati 12-24 mavhiki. Kwete biodegradable munzvimbo dzemugungwa kana dzechisikigo.
-
PET: Kwete biodegradable. Inogona kuramba iri munzvimbo ye400-500 makore, zvichikonzera kusvibiswa kwepurasitiki kwenguva refu.
Carbon Footprint
- Cellophane: Hupenyu hwehupenyu hunobuda kubva ku2.5 kusvika ku3.5 kg CO₂ per kg yefirimu, zvichienderana nenzira yekugadzira.
- PLA: Inogadzira inenge 1.3 kusvika 1.8 kg CO₂ pakg yefirimu, yakaderera zvikuru kupfuura mapurasitiki echinyakare.
- PET: Emissions inowanzobva ku2.8 kusvika ku4.0 kg CO₂ per kg yefirimu nekuda kwefossil fuel use uye kushandiswa kwesimba kwakanyanya.
Kudzokorora
- Cellophane: Zvinogoneka kushandiswazve nehunyanzvi, asi kazhinji zvinogadzirwa necompost nekuda kwekuora kwayo.
- PLA: Inodzokororwa munzvimbo dzakashongedzwa, kunyangwe zvivakwa zvepasirese zvisingakwanisi. Yakawanda yePLA inopedzisira yave mumafiro emarara kana kupisa.
- PET: Inonyanya kushandiswa zvakare uye inogamuchirwa muzvirongwa zvakawanda zvemanisipala. Nekudaro, mitengo yepasirese yekudzokorodza inoramba yakaderera (~ 20-30%), iine chete 26% yemabhodhoro ePET akadzokororwa muUS (2022).
Performance and Properties
-
Kuchinja uye Simba
Cellophane
Cellophane inoratidza kuchinjika kwakanaka uye zvine mwero kuramba kubvarura, zvichiita kuti ive yakakodzera kurongedza maapplication ayo anoda chiyero chakapfava pakati pekuvimbika kwechimiro uye kureruka kwekuvhura. Kusimba kwayo kunowanzobva pa100–150 MPa, zvichienderana nekugadzirwa kwekugadzira uye kana yakaputirwa nokuda kwekuvandudzwa kwezvipingamupinyi. Kunyange isina kusimba sePET, kugona kwe cellophane kukotama pasina kutsemuka uye manzwire ayo echisikigo anoita kuti ive yakakodzera kuputira zvinhu zvisingaremi uye zvakapfava sezvinhu zvakabikwa nemaswiti.
PLA (Polylactic Acid)
PLA inopa yakadzikama mechanic simba, ine simba rekusimba kazhinji pakati50–70 MPa, iyo inofananidzwa neyemamwe mapurasitiki akajairika. Zvisinei, itsbrittlenesschinhu chakakosha dhizaini-pasi pekushushikana kana tembiricha yakaderera, PLA inogona kutsemuka kana kupwanyika, zvichiita kuti isakodzere zvikumbiro zvinoda kupikisa kwakanyanya. Zvinowedzera uye kusanganisa nemamwe mapolymers zvinogona kuvandudza kuoma kwePLA, asi izvi zvinogona kukanganisa kuumbwa kwayo.
PET (Polyethylene Terephthalate)
PET inotaridzirwa zvakanyanya nekuda kweakanakisa makinika zvivakwa. Inopa simba rakakwirira-kubva kubva50 kusvika 150 MPa, zvichienderana nezvinhu zvakaita segiredhi, ukobvu, uye nzira dzekugadzirisa (semuenzaniso, biaxial orientation). PET musanganiswa wekuchinjika, kusimba, uye kuramba kuputika uye kubvarura inoita kuti ive iyo inosarudzika mabhodhoro ezvinwiwa, matireyi, uye yepamusoro-inoshanda kurongedza. Inoita zvakanaka kune yakafara tembiricha renji, kuchengetedza kuvimbika pasi pekunetseka uye panguva yekufambisa.
-
Barrier Properties
Cellophane
Cellophane inezvine mwero barrier propertieskurwisana nemagasi uye unyoro. Zvayomwero wekufambiswa kweokisijeni (OTR)kazhinji inotangira kubva500 kusvika 1200 cm³/m²/zuva, iyo inokwana kune zvipfupi-sherufu-hupenyu zvigadzirwa sezvitsva zvinogadzirwa kana zvakabikwa zvinhu. Kana yakaputirwa (somuenzaniso, nePVDC kana nitrocellulose), iyo inodzivirira kushanda kwayo inovandudza zvakanyanya. Kunyangwe ichigoneka kupfuura PET kana kunyange PLA, kufema kwecellophane kwechisikigo kunogona kubatsira kune zvigadzirwa zvinoda imwe shanduko yehunyoro.
PLA
Mafirimu ePLA anopanani kudzivirira mwando kupfuura cellophaneasi vaneyakakwirira oksijeni permeabilitykupfuura PET. Yayo OTR kazhinji inowira pakati100-200 cm³/m²/zuva, zvichienderana nehupamhi hwefirimu uye crystallinity. Kunyange isiri yakanakira maokisijeni-sensitive application (sezvinwiwa zvecarbonated), PLA inoita zvakanaka pakurongedza michero mitsva, miriwo, uye chikafu chakaoma. Zvitsva zvipingamupinyi-zvakakwenenzverwa zvePLA maumbirwo ari kugadzirwa kuti avandudze mashandiro mune zvakanyanya kudiwa maapplication.
PET
PET inopasuperior barrier propertieskumativi ose. NeOTR yakaderera se1–15 cm³/m²/zuva, inonyanya kushanda pakuvhara okisijeni uye unyoro, zvichiita kuti zvive zvakanaka kune zvokudya uye zvinwiwa zvekuputira apo nguva yakareba yesherufu inokosha. PET's barriers kugona zvakare kunobatsira kuchengetedza chigadzirwa flavour, carbonation, uye kutsva, ndosaka ichitonga chikamu chezvinwiwa zvemabhodhoro.
-
Transparency
Zvese zvinhu zvitatu-Cellophane, PLA, uye PET—kupayakanakisa optical kujeka, zvichiita kuti dzive dzakakodzera kurongedza zvigadzirwa kupikuratidzwa kwekuonakwakakosha.
-
Cellophaneine chitarisiko chinopenya uye manzwiro echisikigo, kazhinji anosimudzira maonero ezvigadzirwa zvemhizha kana eco-friendly.
-
PLAiri pachena uye inopa kupera kwakatsetseka, kupenya, kwakafanana nePET, iyo inofadza mhando dzinokoshesa kuratidzwa kwekuona kwakachena uye kusimba.
-
PETinoramba iri mucherechedzo weindasitiri wekujekesa, kunyanya mumashandisirwo akaita semabhodhoro emvura uye midziyo yekudya yakajeka, uko kujeka kwepamusoro kwakakosha kuratidza mhando yechigadzirwa.
Inoshanda Zvikumbiro
-
Food Packaging
Cellophane: Inowanzo shandiswa kugadzirwa kutsva, kubheka zvinhu zvezvipo, sengecellophane zvipo mabhegi, uye confectionery nekuda kwekufema uye biodegradability.
PLA: Inowedzera kushandiswa mumidziyo yeclamshell, kugadzira mafirimu, uye kurongedzerwa kwemukaka nekuda kwekujekesa kwayo uye compostability, senge.PLA firimu rekudya.
PET: Iyo indasitiri yakajairika yemabhodhoro ezvinwiwa, matireyi echikafu akaomeswa nechando, uye midziyo yakasiyana-siyana, yakakosheswa nekuda kwesimba rayo uye basa rekuvharira.
-
Industrial Use
Cellophane: Inowanikwa mumashandisirwo akasarudzika senge fodya yekuputira, mishonga yemablister packaging, uye kuputira zvipo.
PLA: Inoshandiswa mukurongedza zvekurapa, mafirimu ekurima, uye kuwedzera mune 3D kudhinda filaments.
PET: Kushandiswa kwakanyanya mukutakura zvinhu zvevatengi, zvikamu zvemotokari, uye zvemagetsi nekuda kwesimba rayo uye kuramba kwemakemikari.
Kusarudza pakati pezvinosarudzika sarudzo seCellophane nePLA kana echinyakare PET mafirimu zvinoenderana nezvakawanda zvinhu zvinosanganisira zvinokosheswa kwezvakatipoteredza, mashandiro anoita, uye zvimhingamipinyi zvebhajeti. Nepo PET ichiramba ichitonga nekuda kwemutengo wakaderera uye zvivakwa zvakanakisa, mutoro wezvakatipoteredza uye manzwiro evatengi ari kufambisa shanduko kuenda kumafirimu anoora. Cellophane uye PLA inopa zvakakosha ecological mabhenefiti uye inogona kusimudzira chimiro chemhando, kunyanya mumisika ye eco-inoziva. Kune makambani ari kutsvaga kuramba ari pamberi pemaitiro ekusimbaradza, kuisa mari mune idzi dzimwe nzira kunogona kuve kwese kwekuita basa uye kuronga kufamba.
Related Products
Nguva yekutumira: Jun-03-2025