"Polypropylene amapangidwa kuchokera polymerization wa mpweya pambuyo mkulu kutentha akulimbana mafuta pansi zochita zolimbikitsa, malinga ndi njira zosiyanasiyana kukonza filimu angapezeke kuchokera mafilimu osiyanasiyana ntchito, ambiri ntchito makamaka ambiri cholinga BOPP, matte BOPP, ngale filimu, BOPP yotsekedwa ndi kutentha, kuponyedwa kwa CPP, kuwomba kuumba IPP, ndi zina zotero.
1, filimu ya BOPP yofuna zambiri
filimu BOPP kukonzedwa kuti mbali amorphous kapena mbali ya crystalline filimu anatambasula mu longitudinal ndi yopingasa malangizo pamwamba kufewetsa mfundo, kotero kuti filimu pamwamba m'dera akuwonjezeka, makulidwe ndi thinned, ndi gloss ndi transparency kwambiri bwino.Panthawi imodzimodziyo, mphamvu zamakina, kutsekeka kwa mpweya, chotchinga cha chinyezi ndi kuzizira kozizira kumakhala bwino kwambiri chifukwa cha kayendedwe ka mamolekyu otambasulidwa.
Katundu wa filimu ya BOPP:
Kuthamanga kwamphamvu kwambiri, modulus yayikulu ya elasticity, koma mphamvu yocheperako;kukhazikika bwino, kutalika kwapadera komanso kukana kupindika kwa kutopa;kutentha ndi kuzizira kukana ndi mkulu, ntchito kutentha kwa 120 ℃, BOPP kukana ozizira ndi apamwamba kuposa ambiri PP filimu;gloss yapamwamba, yowonekera bwino, yoyenera zipangizo zosiyanasiyana zolembera;Kukhazikika kwa mankhwala a BOPP ndiabwino, kuwonjezera pa ma asidi amphamvu, monga fuming sulfuric acid, asidi ya nitric imakhala ndi zowononga pa izo Kuphatikiza apo, imakhala yosasungunuka muzosungunulira zina, ndipo ma hydrocarbons ena okha ndi omwe amatupa;kukana madzi abwino kwambiri, chimodzi mwazinthu zabwino kwambiri za chinyezi ndi kukana chinyezi, kuchuluka kwa mayamwidwe amadzi <0.01%;osauka printability, kotero pamwamba ayenera corona ankachitira pamaso kusindikiza, zotsatira zabwino kusindikiza pambuyo processing;high static magetsi, utomoni womwe umagwiritsidwa ntchito popanga filimu uyenera kuwonjezeredwa ku antistatic agent.
2, Matte BOPP
Pamwamba pa matte BOPP amapangidwa ngati mawonekedwe a matte, omwe amapangitsa kuti mawonekedwe awonekedwe ofanana ndi pepala komanso omasuka kukhudza.Matte pamwamba wosanjikiza nthawi zambiri sagwiritsidwa ntchito posindikiza kutentha, chifukwa cha kukhalapo kwa matte wosanjikiza, poyerekeza ndi cholinga cha BOPP, ali ndi makhalidwe awa: wosanjikiza wa matte amatha kugwira ntchito ya shading, gloss ya pamwamba imachepetsedwa kwambiri;wosanjikiza wa matte angagwiritsidwe ntchito kusindikiza kutentha ngati kuli kofunikira;matte pamwamba wosanjikiza ndi yosalala ndi yabwino, chifukwa pamwamba roughened ndi anti-zomatira, filimu masikono si zophweka kumamatira;Kulimba kwa filimu ya matte ndikotsika pang'ono kuposa filimuyo, kukhazikika kwamafuta kumatchedwanso wamba BOPP yoyipa pang'ono.
3, filimu ya ngale
Kanema wa pearlescent amapangidwa ndi PP, CaCO3, pigment ya pearlescent ndi modifier ya rabara ya mphira amawonjezedwa ndikusakanikirana ndi kutambasula kwa bi-directional.Monga mamolekyu a utomoni wa PP amatambasulidwa panthawi ya kutambasula kwa biaxial, ndipo tinthu tating'ono ta CaCO3 timatambasulidwa motalikirana, motero kupanga thovu la pore, kotero filimu ya pearlescent ndi filimu ya thovu ya microporous yokhala ndi kachulukidwe kozungulira 0.7g/cm³.
PP molekyulu amataya kutentha sealability pambuyo biaxial orientation, komabe ali ndi kutentha sealability ngati mphira ndi zosintha zina, koma kutentha chisindikizo mphamvu ndi otsika kwambiri ndi zosavuta kung'amba, amene nthawi zambiri ntchito ma CD ayisikilimu, popsicle, etc.
4, Kutentha kusindikiza filimu ya BOPP
Filimu yotsekedwa ndi mbali ziwiri:
Kanemayu ndi mawonekedwe a ABC, A ndi C mbali zosindikizira kutentha.Amagwiritsidwa ntchito makamaka ngati zida zonyamula chakudya, nsalu, zomvera ndi makanema, ndi zina.
Filimu yosindikizira yotentha ya mbali imodzi:
Kanema wamtunduwu ndi mawonekedwe a ABB, okhala ndi A wosanjikiza ngati wosanjikiza wosindikiza kutentha.Pambuyo posindikiza mbali ya B, imayikidwa ndi PE, BOPP ndi zojambulazo za aluminiyamu kuti apange matumba, omwe amagwiritsidwa ntchito ngati zipangizo zamakono zopangira chakudya, zakumwa, tiyi, ndi zina zotero.
5, Kanema wa CPP wochedwa
Kanema wa Cast CPP polypropylene ndi filimu yosatambasula, yopanda mbali ya polypropylene.
Filimu ya CPP imadziwika ndi kuwonekera kwambiri, kutsika bwino, kukana kutentha kwapamwamba, kusinthasintha kwina popanda kutaya kusinthasintha, katundu wabwino wosindikiza kutentha.Homopolymer CPP ili ndi kutentha kocheperako kotsekera kutentha komanso kuphulika kwakukulu, zomwe zimapangitsa kuti zikhale zoyenera kugwiritsidwa ntchito ngati filimu yonyamula gulu limodzi.
Co-polymer CPP imakhala ndi magwiridwe antchito ndipo ndiyoyenera ngati gawo lamkati la filimu yophatikizika.Pakali pano, ambiri ndi co-extruded CPP, akhoza kugwiritsa ntchito zosiyanasiyana polypropylene makhalidwe osakaniza, kupanga CPP ntchito zambiri.
6, Wowomberedwa IPP filimu
IPP kuwombeza filimu zambiri opangidwa ndi pansi-kuwomba njira, PP ndi extruded ndi kuwomberedwa mu mphete kufa pakamwa, atangoyamba kuzirala ndi mphete mphepo, kuwumbidwa ndi madzi kuzirala mwadzidzidzi, zouma ndi adagulung'undisa, chomalizidwa ndi yamphamvu filimu, yomwe imathanso kudulidwa kuti ikhale filimu yamapepala.IPP yowombedwa ili ndi kuwonekera bwino, kukhazikika bwino komanso kupanga thumba losavuta, koma makulidwe ake ofanana ndi osauka ndipo kupendekera kwa filimu sikokwanira.
Nthawi yotumiza: Jun-08-2023