Polypropylene
Polypropylene (PP) ndi polima wosungunuka kwambiri wokhala ndi mphamvu zambiri, zomwe zimapangitsa kuti ikhale imodzi mwama polima odalirika kwambiri masiku ano.Poyerekeza ndi zida zina zodziwika bwino za thermoplastic, imapereka zabwino monga zotsika mtengo, zopepuka zopepuka, zida zapamwamba zamakina kuphatikiza mphamvu zokolola, kulimba kwamphamvu, ndi mphamvu yapamtunda, kukana kupsinjika kwapadera, komanso kukana abrasion, komanso kukhazikika kwamankhwala, kumasuka. ya kuumba, ndi osiyanasiyana ntchito.Zakhala zikugwiritsidwa ntchito kwambiri m'mafakitale monga mankhwala, zamagetsi, zamagalimoto, zomangamanga, ndi zonyamula.
Msika wolongedza katundu wasintha kwambiri mapepala ndi mafilimu apulasitiki kuti azipaka zofewa, kuchokera ku chakudya kupita kuzinthu zina.Mafilimu apulasitiki omwe amagwiritsidwa ntchito popanga zofewa ayenera kukwaniritsa zofunikira pazitsulo zotetezera, zogwirira ntchito, zosavuta, komanso zamtengo wapatali, zokhala ndi mphamvu zoyenera, zotchinga, kukhazikika, chitetezo, kuwonekera, komanso zosavuta.
Kanema wa CPP: Kanema wa CPP amabwera mumitundu yonse, yazitsulo, komanso yowiritsa.Mtundu wa zolinga zambiri umagwiritsidwa ntchito nthawi zambiri ndipo ukhoza kusinthidwa mumtundu wina.Mtundu wazitsulo ndi mankhwala apamwamba omwe amapangidwa kudzera mwa njira yapadera pogwiritsa ntchito zipangizo zapadera za polypropylene kuti akwaniritse mphamvu zapamwamba zosindikizira kutentha.Mtundu wowiritsa umapangidwira kukana kutentha kwambiri ndipo nthawi zambiri amapangidwa kuchokera ku ma copolymers osasinthika okhala ndi kutentha koyambirira kosindikiza kutentha.
Kanema wa CPP ndi filimu yosatambasulidwa, yosasunthika yokhazikika yopangidwa ndi njira ya filimu yoponyedwa kuchokera ku polypropylene yosatambasulidwa.Imakhala ndi kulemera kopepuka, kuwonekera kwambiri, kukhazikika bwino, kukhazikika bwino, kusinthika kwamakina apamwamba, kusindikiza kutentha kwambiri, kukana chinyezi, kukana kutentha, kutsetsereka kwabwino, kuthamanga kwambiri kwamafilimu, makulidwe a yunifolomu, kukana chinyezi, kukana mafuta, kutentha. kukana, kukana kuzizira, kumasuka kwa kusindikiza kutentha, komanso kukana kwambiri kutsekereza.Mawonekedwe ake owoneka bwino ndiabwino kwambiri komanso oyenera kuyika zokha.
Chiyambireni ku China m'zaka za m'ma 1980, ndalama ndi mtengo wowonjezera wa filimu ya CPP wakhala wofunika kwambiri.Kanema wa CPP amagwiritsidwa ntchito kwambiri pakuyika zakudya, mankhwala, zolembera, zodzoladzola, ndi nsalu, zomwe zimagwiritsidwa ntchito kwambiri pagawo lonyamula zakudya.Amagwiritsidwa ntchito kulongedza zakudya zopanda kutentha, zokometsera, soups, komanso zinthu zolembera, zithunzi, zosonkhanitsa, zolemba zosiyanasiyana, ndi matepi.
Kanema wa BOPP: Kanema wa BOPP atha kugawidwa m'magulu amtundu wa antistatic, filimu yotsutsa chifunga, filimu ya BOPP yodzaza ndi porous, komanso yosavuta kusindikiza.
filimu BOPP
Kanema wa BOPP ndiwopanga bwino kwambiri, wowoneka bwino kwambiri yemwe adapangidwa mu 1960s.Amapereka kuuma kwakukulu, mphamvu zong'ambika, kukana mphamvu, chotchinga bwino chinyezi, gloss kwambiri, kuwonekera bwino, zotchinga mpweya wabwino, zopepuka, zopanda poizoni, zopanda fungo, kukhazikika bwino kwa mawonekedwe, kugwiritsidwa ntchito kwakukulu, kusindikiza kwabwino, komanso zinthu zabwino zotchinjiriza magetsi. .Imawonedwa kwambiri ngati "mfumukazi yonyamula" pamakampani onyamula.
Kanema wa Antistatic BOPP amagwiritsidwa ntchito kulongedza zinthu zing'onozing'ono monga nsomba zodulidwa, filimu yosavuta kusindikiza ya BOPP imagwiritsidwa ntchito popanga zinthu zatirigu, ndipo filimu ya BOPP yosavuta kudula imagwiritsidwa ntchito popanga masupu ndi mankhwala.Kanema wocheperako wa BOPP, wopangidwa pogwiritsa ntchito njira yopangira mafilimu omwe amapangidwa ndi biaxially, amagwiritsidwa ntchito kwambiri popaka ndudu.
Filimu ya IPP: Kanema wa IPP ali ndi mawonekedwe otsika pang'ono kuposa CPP ndi BOPP, koma ali ndi njira yosavuta, yotsika mtengo, ndipo imatha kusindikizidwa mosavuta pamwamba ndi pansi pakuyika.Makulidwe a filimu nthawi zambiri amachokera ku 0.03 mpaka 0.05mm.Pogwiritsa ntchito utomoni wa copolymer, imatha kupanga mafilimu okhala ndi mphamvu zabwino kwambiri pa kutentha kochepa.Makanema osinthidwa a IPP ali ndi kutentha kwapang'onopang'ono, kutsika kwambiri, kuwonekera kwambiri, kulimba kwamphamvu, kusinthasintha kwabwino, komanso antistatic properties.Kanemayo angaphatikizepo filimu ya polypropylene ya single-wosanjikiza, yomwe imatha kukhala homopolymer kapena copolymer, kapena filimu yamitundu yambiri yowomberedwa ndi ma homopolymer ndi copolymer.IPP imagwiritsidwa ntchito kwambiri pakuyika zokhwasula-khwasula zokazinga, mkate, nsalu, zikwatu, manja ojambulira, udzu wam'nyanja, ndi nsapato zamasewera.
kupanga filimu yopangidwa ndi polypropylene imaphatikizapo kusungunuka ndi kuyika pulasitiki utomoni wa polypropylene kudzera mu extruder, kenako ndikuwutulutsa kudzera pakufa kopapatiza, kutsatiridwa ndi kutambasula kwautali ndi kuziziritsa kwa zinthu zosungunuka pa chodzigudubuza choponyera, ndipo pamapeto pake kudulidwa kusanachitike, kuyeza makulidwe. , kudula, mankhwala a corona pamwamba, ndi mapindikidwe pambuyo podula.Kanemayo, yemwe amadziwika kuti filimu ya CPP, ndi yopanda poizoni, yopepuka, yamphamvu kwambiri, yowoneka bwino, yonyezimira, yosatsekeka, yosasunthika, yosagwirizana ndi chinyezi, yolimba, komanso yokhuthala mofanana.Ili ndi ntchito zosiyanasiyana, kuphatikiza magawo amafilimu ophatikizika, chakudya chowiritsa ndi zida zonyamula zotentha kwambiri, ndi zida zosiyanasiyana zonyamula zakudya, mankhwala, zovala, nsalu, ndi zofunda.
Chithandizo Chapamwamba cha Mafilimu a Polypropylene
Chithandizo cha Corona: Chithandizo chapamwamba ndi chofunikira kuti ma polima azitha kunyowetsa komanso kumamatira pamakampani osindikizira ndi kulongedza katundu.Njira monga kumezanitsa polymerization, kutulutsa kwa corona, ndi kuyatsa kwa laser kumagwiritsidwa ntchito pochiza pamwamba.Chithandizo cha Corona ndiukadaulo wosamalira zachilengedwe womwe umachulukitsa kuchuluka kwa ma radio oxygen pamalopo polima.Ndi oyenera zipangizo monga polyethylene, polypropylene, PVC, polycarbonates, fluoropolymers, ndi copolymers ena.Chithandizo cha Corona chimakhala ndi nthawi yayifupi yochizira, kuthamanga kwachangu, ntchito yosavuta, komanso kuwongolera kosavuta.Zimangokhudza malo osaya kwambiri a pulasitiki, makamaka pamlingo wa nanometer, ndipo sizikhudza kwambiri makina azinthu.Amagwiritsidwa ntchito kwambiri posintha ma polyethylene ndi mafilimu a polypropylene ndi ulusi, chifukwa ndizosavuta kugwiritsa ntchito komanso amapereka chithandizo chabwino popanda kuipitsa chilengedwe.
Mawonekedwe Apamwamba a Filimu ya Polypropylene: Kanema wa polypropylene ndi chinthu chopanda kristalo, chomwe chimapangitsa kuti inki isagwirizane bwino komanso kuchepa kwamadzimadzi chifukwa cha kusamuka komanso kuchuluka kwa zinthu zolemera kwambiri za mamolekyulu monga mapulasitiki, zoyambitsa, zotsalira zotsalira, ndi zinthu zowonongeka, zomwe zimapanga amorphous. wosanjikiza amene amachepetsa kunyowetsa pamwamba ntchito, amafuna chithandizo pamaso kusindikiza kukwaniritsa zokhutiritsa kusindikiza khalidwe.Kuphatikiza apo, mawonekedwe osagwirizana ndi filimu ya pulasitiki ya polypropylene imapereka zovuta pakukonzanso kwachiwiri monga kumangiriza, zokutira, zokutira, zokutira za aluminiyamu, ndi masitampu otentha, zomwe zimapangitsa kuti pakhale ntchito yocheperako.
Mfundo Zazikulu ndi Zochitika Zazikulu Zazikulu za Corona Chithandizo: Mothandizidwa ndi magetsi okwera kwambiri, filimu ya polypropylene imakhudzidwa ndi kutuluka kwamphamvu kwa ma elekitironi, zomwe zimapangitsa kuti pamwamba pakhale roughening.Izi zimachitika chifukwa cha makutidwe ndi okosijeni komanso zinthu zomwe zimawonongeka pama cell a polypropylene, zomwe zimapangitsa kuti pakhale zovuta kwambiri kuposa filimu yoyambirira.Kuchiza kwa Corona kumapanga tinthu tambiri ta ozone plasma zomwe zimalumikizana mwachindunji kapena mosagwirizana ndi filimu ya pulasitiki, zomwe zimapangitsa kuti pakhale kung'ambika kwa ma molekyulu apamwamba pamtunda komanso kupanga ma radicals osiyanasiyana ndi malo osakwanira.Ma radicals osaya pamwamba awa ndi malo osasunthika amalumikizana ndi madzi pamwamba kuti apange magulu ogwirira ntchito polar, kuyambitsa filimu ya polypropylene.
Mwachidule, mitundu yosiyanasiyana ya filimu ya polypropylene ndi mitundu yosiyanasiyana ya ntchito, limodzi ndi matekinoloje osiyanasiyana ochizira pamwamba, zimatsimikizira kuti ikukwaniritsa zofunikira pakuyika ndi magawo ena.
Nthawi yotumiza: Dec-19-2023