Polypropylene
I-Polypropylene (PP) yipolymer ephezulu ye-melting-point thermoplastic eneempawu ezigqwesileyo ezibanzi, nto leyo eyenza ibe yenye yezona zithembisayo zepolymers ze-thermoplastic namhlanje.Xa kuthelekiswa nezinye izinto eziqhelekileyo ze-thermoplastic, ibonelela ngeenzuzo ezinje ngexabiso eliphantsi, ubunzima obulula, iipropathi eziphezulu zemishini ezibandakanya amandla esivuno, amandla okuqina, kunye nokuqina komphezulu, ukuxhathisa okukhethekileyo kokuqhekeka, kunye nokuxhathisa kwe-abrasion, kunye nokuzinza okuhle kweekhemikhali, ukukhululeka. yokubumba, kunye noluhlu olubanzi lwezicelo.Isetyenziswe ngokubanzi kumashishini afana neekhemikhali, i-elektroniki, iimoto, ukwakhiwa, kunye nokupakisha.
Imakethi yokupakisha ubukhulu becala ithathe indawo yephepha ngeefilimu zeplastiki ukupakishwa okuthambileyo, ukusuka ekutyeni ukuya kwizinto ezahlukeneyo.Iifilimu zeplastiki ezisetyenziselwa ukupakishwa okuthambileyo kufuneka zihlangabezane neemfuno zokukhusela, ukusebenza, ukulungeleka, kunye nezixhobo zokupakisha ezinoqoqosho, ezinamandla afanelekileyo, iipropathi zokuthintela, ukuzinza, ukhuseleko, ukungafihli kunye nokulula.
Ifilimu ye-CPP: Ifilimu ye-CPP iza ngokwenjongo-jikelele, isinyithi, kunye neentlobo ezibilisiweyo.Uhlobo lwenjongo ngokubanzi lusetyenziswa ngokuqhelekileyo kwaye lunokulungelelaniswa phakathi koluhlu oluthile.Uhlobo lwe-metalized luyimveliso ephezulu eyenziwe ngenkqubo ekhethekileyo isebenzisa izixhobo ezikhethekileyo ze-polypropylene ukufezekisa amandla aphezulu okutywinwa kobushushu.Uhlobo olubilisiweyo lwenzelwe ukumelana nobushushu obuphezulu kwaye ngokuqhelekileyo lwenziwa kwii-copolymers ezingahleliwe kunye nobushushu bokuqala bokutywinwa kobushushu.
Ifilimu ye-CPP yifilimu enganwetshiweyo, engagxiliyo engagxiliyo yeflat ekhutshiweyo eyenziwe yindlela yefilimu ephosiweyo ukusuka kwi-polypropylene engasolulwanga.Ibonisa ubunzima obulula, ukucaca okuphezulu, ukucaca kakuhle, ukuqina okulungileyo, ukuguquguquka okuphezulu komatshini, ukutywinwa kobushushu, ukumelana nokufuma, kunye nokumelana nobushushu, iipropati ezintle zokutyibilika, isantya esiphezulu sokuvelisa ifilimu, ubukhulu obufanayo, ukumelana nokufuma okuhle, ukumelana neoli, ubushushu. ukumelana, ukumelana nokubanda, ukukhululeka kokutywinwa kobushushu, kunye nokumelana okuphezulu kokuthintela.Iimpawu zayo ze-optical zibalaseleyo kwaye zifanelekile ukupakishwa okuzenzekelayo.
Ukususela ekuqalisweni kwayo e-China kwi-1980, utyalo-mali kunye nexabiso elongezelelweyo lefilimu ye-CPP ibalulekile.Ifilimu ye-CPP isetyenziswa kakhulu ekupakisheni ukutya, amayeza, izinto zokubhala, izinto zokuthambisa, kunye namalaphu, ngokusetyenziswa okukhulu kwicandelo lokupakisha ukutya.Isetyenziselwa ukupakisha ukutya okufakwa ubushushu, iziqholo, isuphu, kunye neemveliso zokubhala, iifoto, izinto eziqokelelweyo, iilebhile ezahlukeneyo, kunye neeteyiphu.
Ifilimu ye-BOPP: Ifilimu ye-BOPP inokuhlelwa ngomsebenzi kwifilimu ye-antistatic, ifilimu echasene nenkungu, ifilimu ye-BOPP ehlaziyiweyo ezaliswe ngamaqhekeza, kwaye kulula ukuyiprinta.
Ifilimu yeBOPP
Ifilimu ye-BOPP yinto ephezulu, ebonakalayo ebonakalayo yokupakisha eyaphuhliswa kwi-1960s.Ibonelela ngokuqina okuphezulu, ukomelela kokukrazula, ukuchasana nempembelelo, isithintelo sokufuma esilungileyo, isicwebezelisi esiphakamileyo, ukubonakala kakuhle, iipropathi ezilungileyo zesithintelo segesi, ukhaphukhaphu, ungeyotyhefu, akukho vumba, uzinzo oluhle lomda, ukusetyenziswa okubanzi, ukuprintwa kakuhle, kunye neempawu ezilungileyo zokugquma umbane. .Ithathwa ngokubanzi njenge "packaging queen" kwishishini lokupakisha.
Ifilimu ye-Antistatic BOPP isetyenziselwa ukupakisha izinto ezincinci zokutya ezifana neentlanzi ezisikiweyo, ifilimu ye-BOPP ekulula ukuyiprinta isetyenziselwa ukupakisha iimveliso ze-cereal, kwaye ifilimu ye-BOPP ekulula ukuyisika isetyenziselwa ukupakisha iisuphu kunye namayeza.Ifilimu ye-BOPP ecuthayo, eveliswe kusetyenziswa inkqubo yokwenziwa kwefilimu ejolise kwi-biaxially, iqhele ukusetyenziselwa ukupakisha icuba.
Ifilimu ye-IPP: Ifilimu ye-IPP ineepropati ze-optical eziphantsi kancinci kune-CPP kunye ne-BOPP, kodwa inenkqubo elula, indleko ephantsi, kwaye inokutywinwa ngokulula phezulu nasezantsi ukupakisha.Ubukhulu befilimu busuka kwi-0.03 ukuya kwi-0.05mm.Ukusebenzisa i-copolymer resins, inokuvelisa iifilimu ezinamandla kakhulu kumaqondo aphantsi.Iifilimu ze-IPP eziguquliweyo zinobushushu obuphantsi bokuchasana nempembelelo ephezulu, iipropathi eziphezulu zokutyibilika, ukucaca okuphezulu, amandla empembelelo ephezulu, ukuguquguquka okuhle, kunye neempawu ze-antistatic.Ifilimu inokubandakanya ifilimu ye-polypropylene ene-single-layer, enokuthi ibe yi-homopolymer okanye i-copolymer, okanye ifilimu ene-multi-layer co-extruded evuthelweyo esebenzisa i-homopolymer kunye ne-copolymer materials.IPP isetyenziselwa kakhulu ukupakisha amashwamshwam aqhotsiweyo, izonka, amalaphu, iifolda, imikhono yokurekhoda, ukhula lwaselwandle, kunye nezihlangu zemidlalo.
Inkqubo yokuvelisa ifilimu yepolypropylene ephosiweyo ibandakanya ukunyibilika kunye neplastiki ye-polypropylene resin ngokusebenzisa i-extruder, emva koko uyikhuphe ngokufa kwe-slit die, ilandelwa kukwelula okude kunye nokupholisa kwezinto ezityhidiweyo kwi-roller yokuphosa, kwaye ekugqibeleni igqitywe kwangaphambili, ukulinganisa ubukhulu. , ukusika, unyango lwe-corona yomphezulu, kunye nokujika emva kokucheba.Ifilimu enesiphumo, eyaziwa ngokuba yifilimu ye-CPP, ayinayo ityhefu, ilula, inamandla amakhulu, iyabonakala, icwebezelayo, itywinwe ubushushu, ayinyangeki ukufuma, iqinile, kwaye ingqindilili ngokufanayo.Inoluhlu olubanzi lwezicelo, ezibandakanya ii-substrates zefilimu ezidibeneyo, ukutya okubilisiweyo kunye nezixhobo zokupakisha ezinobushushu obuphezulu, kunye nezixhobo ezahlukeneyo zokupakisha zokutya, amayeza, iimpahla, iingubo kunye neebhedi.
Unyango loMphezulu wePolypropylene Film
Unyango lweCorona: Unyango lomphezulu lubalulekile kwiipolima ukuze ziphucule ukumanzisa kwazo kunye nokuncamathela kushishino lokushicilela nokupakisha.Ubuchule obufana ne-graft polymerization, ukukhutshwa kwe-corona, kunye ne-laser irradiation zisetyenziselwa unyango olungaphezulu.Unyango lweCorona bubuchwephesha obuhambelana nokusingqongileyo okwandisa ukuxinana kweeradicals zeoksijini ezisebenzayo kumphezulu wepolymer.Ifanelekile kwizinto ezifana ne-polyethylene, i-polypropylene, i-PVC, i-polycarbonates, i-fluoropolymers, kunye nezinye ii-copolymers.Unyango lweCorona lunexesha elifutshane lonyango, isantya esikhawulezayo, ukusebenza okulula, kunye nolawulo olulula.Ichaphazela kuphela indawo enzulu kakhulu yeplastiki, ngokuqhelekileyo kwinqanaba le-nanometer, kwaye ayichaphazeli kakhulu iimpawu zomatshini weemveliso.Isetyenziswa ngokubanzi ukuguqulwa komphezulu we-polyethylene kunye neefilimu ze-polypropylene kunye nemicu, njengoko kulula ukuyisebenzisa kwaye inika iziphumo ezilungileyo zonyango ngaphandle kokungcoliseka kwendalo.
Iimpawu zoMphezulu weFilimu yePolypropylene: ifilimu yePolypropylene yimathiriyeli yekristale engeyiyo, ekhokelela kukungasebenzisi kakuhle kwe-inki kunye nokuncipha kokumanzisa komphezulu ngenxa yokufuduka kunye nokwakhiwa kwezinto ezinobunzima bemolekyuli obuphantsi njengeplastiki, abaqalisi, iimonomers ezishiyekileyo, kunye neemveliso eziwohlokayo, ezenza i-amorphous. umaleko ocutha ukusebenza kokumanzisa umphezulu, kufuna unyango phambi koshicilelo ukuze kuphunyezwe umgangatho woshicilelo owanelisayo.Ukongeza, ubume befilimu yeplastiki ye-polypropylene engeyiyo inika imingeni ekusetyenzweni kwesibini okunje ngebhondi, ukwambathisa, i-lamination, i-aluminium plating, kunye nesitampu esishushu, esikhokelela ekusebenzeni kancinci.
Imigaqo kunye ne-Microscopic Phenomena yoNyango lweCorona: Ngaphantsi kwempembelelo yombane ophezulu we-voltage, ifilimu ye-polypropylene inefuthe lokuhamba kwe-electron enamandla, okubangela ukugqithisa komhlaba.Oku kungenxa yenkqubo ye-oxidation kunye neemveliso zokuqhawula i-molecular chain kwindawo yefilimu ye-polypropylene, ekhokelela kuxinzelelo oluphezulu phezu kwefilimu yokuqala.Unyango lwe-Corona ludala inani elibalulekileyo lee-ozone plasma particles ezisebenzisana ngokuthe ngqo okanye ngokungathanga ngqo kunye nomphezulu wefilimu yeplastiki, ekhokelela ekuqhekekeni kwamabhondi aphezulu eemolekyuli phezu komhlaba kunye nokuveliswa kweeradicals ezahlukeneyo kunye namaziko angenayo i-unsaturated.Ezi radicals zomphezulu ongenzulu kunye namaziko angaxutywanga emva koko zisabela ngamanzi kumphezulu ukuze zenze amaqela asebenzayo e-polar, avule umphezulu wefilimu ye-polypropylene.
Isishwankathelo, iintlobo ezahlukeneyo zefilimu ye-polypropylene kunye noluhlu olubanzi lwezicelo, kunye neetekhnoloji ezahlukeneyo zonyango lomphezulu, ziqinisekisa ukuba ziyahlangabezana neemfuno ezisebenzayo zokupakisha kunye nezinye iindawo.
Ixesha lokuposa: Dec-19-2023