Iifilimu ezahlukeneyo zihlala zisetyenziswa kubomi bemihla ngemihla. Zenziwa ngantoni ezi filimu? Zeziphi iimpawu zokwenziwa komsebenzi ngamnye? Oku kulandelayo sisingeniso esineenkcukacha kwiifilimu zeplastiki eziqhele ukusetyenziswa kubomi bemihla ngemihla:
Ifilimu yeplastiki yifilimu eyenziwe nge-polyvinyl chloride, i-polyethylene, i-polypropylene, i-polystyrene kunye nezinye ii-resin, ezihlala zisetyenziselwa ukupakisha, ukwakhiwa, kunye nomgca wokugubungela, njl.
Ifilimu yeplastiki inokwahlulwa ibe
-Ifilimu yamashishini: ifilimu evuthelweyo, ifilimu enekhalenda, ifilimu eyoluliweyo, ifilimu ephosiweyo, njl.
-Ifilimu yeshedi yezolimo, ifilimu yesigcina-kufuma, njl.njl.;
-Iifilimu zokupakisha (kubandakanywa neefilimu ezidibeneyo zokupakisha amayeza, iifilimu ezidibeneyo zokupakisha ukutya, njl.).
Izinto eziluncedo kunye nokungalunganga kwefilimu yeplastiki:
Iimpawu zokusebenza zeefilimu eziphambili zeplastiki:
Ifilimu yePolypropylene eneBiaxially (BOPP)
I-Polypropylene yi-resin ye-thermoplastic eveliswa yi-polymerization ye-propylene. Izinto ze-Copolymer PP zineqondo lokushisa eliphantsi lokuguqula ubushushu (100 ° C), ukukhanya okuphantsi, i-gloss ephantsi, kunye nokuqina okuphantsi, kodwa zinamandla eempembelelo ezinamandla, kwaye amandla empembelelo yePP ayanda ngokunyuka komxholo we-ethylene. Iqondo lokushisa lokuthambisa iVicat lePP yi-150°C. Ngenxa yomgangatho ophezulu we-crystallinity, le mathiriyeli inokuqina okuhle kakhulu komphezulu kunye neempawu zokumelana nokuqala. I-PP ayinayo ingxaki yokuqhekeka koxinzelelo lwendalo.
Ifilimu ye-polypropylene ye-Biaxially oriented (BOPP) yinto ecacileyo yokupakisha eguquguqukayo ephuhliswe kwi-1960s. Isebenzisa umgca wokuvelisa okhethekileyo ukuxuba izinto eziluhlaza ze-polypropylene kunye nezongezo ezisebenzayo, zinyibilike kwaye zixoke zibe ngamashidi, kwaye emva koko zilule kwiifilimu. Isetyenziswa kakhulu kwipakethe yokutya, i-candy, icuba, iti, ijusi, ubisi, iingubo, njl., kwaye inegama elithi "Packaging Queen". Ukongeza, inokuthi isetyenziswe ekulungiseleleni iimveliso ezisebenzayo ezongezelelweyo zexabiso eliphezulu ezifana ne-membrane zombane kunye ne-microporous membranes, ngoko ke amathuba okuphuhliswa kweefilimu ze-BOPP zibanzi kakhulu.
Ifilimu ye-BOPP ayinayo kuphela inzuzo yoxinano oluphantsi, ukuchasana kakuhle kwe-corrosion kunye nokuchasana nokushisa okulungileyo kwe-PP resin, kodwa ineempawu ezintle ze-optical, amandla omatshini aphezulu kunye nemithombo ecebileyo yezinto eziluhlaza. Ifilimu ye-BOPP inokudibaniswa nezinye izinto ezineepropathi ezikhethekileyo zokuphucula ngakumbi okanye ukuphucula ukusebenza. Izinto ezisetyenziswa ngokuqhelekileyo ziquka ifilimu ye-PE, ifilimu ye-polypropylene (CPP) i-salivating, i-polyvinylidene chloride (PVDC), ifilimu ye-aluminium, njl.
Umboniso bhanyabhanya wePolyethylene woXinano oluPhantsi (LDPE)
Ifilimu yePolyethylene, eyi-PE, ineempawu zokuxhathisa ukufuma kunye nokunyameka okuphantsi komswakama.
I-polyethylene ephantsi (i-LPDE) i-resin yokwenziwa efunyenwe yi-ethylene radical polymerization phantsi koxinzelelo oluphezulu, ngoko ikwabizwa ngokuba "yi-polyethylene ephezulu". I-LPDE yiathom enamasebe obude ohlukeneyo kwikhonkco eliphambili, malunga ne-15 ukuya kwi-30 ye-ethyl, i-butyl okanye amasebe amade kwi-1000 leathom zekhabhoni kwikhonkco eliphambili. Ngenxa yokuba ikhonkco lemolekyuli liqulethe amatyathanga amade kunye namafutshane, imveliso inoxinano oluphantsi, ukuthamba, ukumelana nobushushu obuphantsi, ukumelana nempembelelo entle, ukuzinza okuhle kweekhemikhali, kunye nokumelana ne-asidi ngokubanzi (ngaphandle kwee-acids oxidizing ezomeleleyo), ialkali, ukubola kwetyuwa, ilungile. iimpawu zokugquma umbane. I-Translucent kunye ne-glossy, inozinzo olubalaseleyo lwekhemikhali, ukutywinwa kobushushu, ukuxhathisa kwamanzi kunye nokuxhathisa ukufuma, ukumelana nomkhenkce, kwaye inokubiliswa. Ukungalungi kwayo okuphambili kukuthintelwa kwayo oksijini.
Ihlala isetyenziswa njengefilimu yokupakisha yangaphakathi yezixhobo zokupakisha eziguquguqukayo, kwaye ikwayeyona isetyenziswa kakhulu kwaye isetyenziswa kakhulu ifilimu yokupakisha yeplastiki okwangoku, ibalelwa ngaphezulu kwe-40% yokusetyenziswa kweefilimu zokupakisha zeplastiki. Kukho iintlobo ezininzi zeefilimu zokupakisha i-polyethylene, kwaye ukusebenza kwazo kwahlukile. Ukusebenza kwefilimu eyodwa yodwa, kwaye ukusebenza kwefilimu edibeneyo kuyahambelana. Yeyona nto iphambili yokupakishwa kokutya. Okwesibini, ifilimu ye-polyethylene ikwasetyenziswa kwintsimi yobunjineli boluntu, njenge-geomembrane. Isebenza njengokuthintela amanzi kubunjineli boluntu kwaye inokungena okuphantsi kakhulu. Ifilimu yezolimo isetyenziswa kwezolimo, enokuthi ihlulwe ibe yifilim yeshedi, ifilimu yemulch, ifilimu egqumayo ekrakra, ifilimu yokugcina eluhlaza njalo njalo.
Ifilimu yePolyester (PET)
Ifilimu yePolyester (PET), eyaziwa ngokuba yi-polyethylene terephthalate, yiplastiki yobunjineli be-thermoplastic. Yimathiriyeli yefilimu eyenziwe ngamashiti ashinyeneyo nge-extrusion kwaye emva koko yolulwe nge-biaxially. Ifilimu yePolyester ibonakaliswe ngeempawu ezigqwesileyo zomatshini, ukuqina okuphezulu, ukuqina kunye nokuqina, ukuxhathisa i-puncture, ukumelana noxinzelelo, ubushushu obuphezulu kunye nokumelana nobushushu obuphantsi, ukumelana neekhemikhali, ukuxhathisa kweoli, ukuqina komoya kunye nokugcinwa kwevumba. Enye yee-substrates zefilimu edibeneyo esisigxina, kodwa ukuxhathisa kwe-corona akulunganga.
Ixabiso lefilimu ye-polyester liphezulu, kwaye ubukhulu bayo ngokuqhelekileyo bu-0.12 mm. Ihlala isetyenziswa njengesixhobo sangaphandle sokupakishwa kokutya, kwaye inokuprintwa kakuhle. Ukongeza, ifilimu ye-polyester ihlala isetyenziswa njengokuprinta kunye nokupakishwa kwezinto ezisetyenziswayo ezifana nefilimu yokukhusela indalo, ifilimu ye-PET, kunye nefilimu emhlophe emhlophe, kwaye isetyenziswa ngokubanzi kumashishini afana neeplastiki eziqinisiweyo zeglasi, izinto zokwakha, ukushicilela, kunye neyeza kunye nempilo.
Ifilimu yeplastiki yenayiloni (ONY)
Igama lekhemikhali yenayiloni yipolyamide (PA). Okwangoku, kukho iintlobo ezininzi ze-nylon eziveliswa kwimizi-mveliso, kwaye iintlobo eziphambili ezisetyenziselwa ukuvelisa iifilimu ziyi-nylon 6, inayiloni 12, inayiloni 66, njl njl. amandla okuqina, kunye nokuxhathisa ubushushu obuhle, ukumelana nokubanda, ukuxhathisa kweoli kunye nokumelana ne-solvent ye-organic. Ukuxhathisa okugqwesileyo kokunxiba kunye nokumelana nokugqobhoza, ukuthamba ngokwentelekiso, iipropathi ezigqwesileyo zesithintelo seoksijini, kodwa iimpawu zesithintelo esilambathayo kumphunga wamanzi, ukufunxwa okuphezulu kokufuma kunye nokungenwa kokufuma, ubushushu obuphantsi, obulungele ukupakisha izinto ezinzima, njengokutya okunamafutha ngesondo, iimveliso zenyama, eziqhotsiweyo. ukutya, ukutya okufunxayo, ukutya okuphekiweyo, njl.
Ifilimu yeCast Polypropylene (CPP)
Ngokungafaniyo nefilimu ye-polypropylene ye-biaxially oriented oriented (BOPP), ifilimu ye-polypropylene ephosiweyo (CPP) yifilimu ye-flat extrusion engasoluliyo, engabonakaliyo eveliswa ngokuyinyibilika kunye nokucima. Iphawulwa ngesantya esikhawulezayo sokuvelisa, ukuphuma okuphezulu, ukubonakala kakuhle kwefilimu, isicwebezelisi, ukufana kobuninzi, kunye nokulungelelana okugqwesileyo kweempawu ezahlukeneyo. Kuba iyifilim ethe tyaba ekhutshiweyo, umsebenzi wokulandelela onjengokushicilela kunye nokudibanisa kulula kakhulu. I-CPP isetyenziswa kakhulu ekupakishweni kwamalaphu, iintyatyambo, ukutya, kunye neemfuno zemihla ngemihla.
Ifilimu yeplastiki ene-aluminiyam
Ifilimu ye-aluminum ineempawu zombini zefilimu yeplastiki kunye neempawu zentsimbi. Indima ye-aluminium plating ebusweni befilimu kukukhusela ukukhanya kunye nokukhusela imisebe ye-ultraviolet, engagcini nje ukwandisa ixesha leshelufu yezinto eziqulethweyo, kodwa iphucula ukukhanya kwefilimu. Ke ngoko, ifilim elumnyisiweyo isetyenziswa kakhulu kwipakethe edibeneyo, isetyenziswa ikakhulu kwipakethe yokutya eyomileyo nekhukhumeleyo enje ngeebhiskithi, kunye nokupakishwa kwangaphandle kwamanye amayeza kunye nezinto zokuthambisa.
Ixesha lokuposa: Jul-19-2023
