Kapangidwe kazinthu zobwezerezedwanso kamodzi kamakhala kokulirakulira pamsika wazolongedza wanyumba. Komabe, mapulogalamu ambiri akadali okhazikika m'magawo otsika komanso apakatikati. Momwe mungagwiritsire ntchito zinthu zomwe zimagwiritsidwanso ntchito m'munda wapamwamba wotchinga kapena ngakhale malo otchinga kwambiri ophikira kutentha kwambiri? Pakali pano, mabizinesi ena nthawi zambiri amatulutsa chinthu chimodzi, kaya amakwaniritsa zofunikira zobwezeretsanso? Choyamba, ndi chiyani chomwe chingabwezerensonso chinthu chimodzi? Ngakhale mawonekedwe azinthu zobwezerezedwanso ndi chimodzi chakhala chodziwika kwambiri pamsika wapakhomo, koma mabizinesi ena amatulutsa mawonekedwe amodzi muzovomerezeka zobwezerezedwanso, sadzakhala ndi kuchuluka kwa kuchira. Chithunzi 1 chikuwonetsa zoyeserera za kuchuluka kwapang'onopang'ono kwazinthu zoperekedwa ndi "Institute Cyclos-HTP Institute of Germany", yomwe ndi kampani yodziyimira payokha yoyesa ndi ziphaso. Pakadali pano, yapereka masatifiketi masauzande ambiri obwezeretsanso padziko lonse lapansi. Ku China, mabizinesi ambiri monga Huizhou Baoba ndi Daoco alandilanso ziphaso zoperekedwa ndi bungweli. Zomwe zapezazi ndi zotsatira zoyesa zazinthu zopakira zophatikizika zomwe mawonekedwe ake onse amagwirizana ndi kapangidwe ka chinthu chimodzi. N’chifukwa chiyani pali kusiyana kwakukulu chonchi?
Malinga ndi malangizo a European CEFLEX ndi deta ya Institute Cyclos-HTP ku Germany, mitengo yobwezeretsa zinthu zoyera kwambiri ndi izi: filimu imodzi ya polypropylene (PP), filimu imodzi ya polyethylene (PE) ndi filimu imodzi ya poliyesitala (PET) yokhala ndi mitengo yochira kwambiri: Kuchira kwakukulu kwa polyolefin filimu yopangidwanso: yobwezeretsedwanso komanso mu mawonekedwe a PDC, osaloledwa kukhala ndi gulu la PDC. zinthu zomwe sizinali zazikulu (monga inki, zomatira, zopangira aluminiyamu, EVOH, ndi zina) zonse zosaposa 5%. Kuloledwa kukhala ndi zosakaniza, ndi okhutira ake okwana, osati okhutira, amene ndi zambiri mabizinesi kapangidwe mankhwala dongosolo sachedwa zolakwa, chifukwa otsika kuchira mlingo pamene chiphaso.
Vacuum evaporation process imatha kupititsa patsogolo ntchito yotchinga kawiri yamadzi ndi kukana kwa okosijeni, yomwe ilinso njira yopititsira patsogolo ntchito yotchinga kwambiri pakadali pano, komanso njira yokhala ndi ntchito yotsika mtengo kwambiri yamadzi ndi kukana okosijeni. Vacuum evaporation ndi imodzi mwamachitidwe omwe ali ndi gawo laling'ono kwambiri la zinthu zomwe sizili zazikulu pamachitidwe onse ochotsa zotchinga. Makulidwe a aluminiyumu plating wosanjikiza ndi 0.02 ~ 0.03u okha, omwe ali ndi gawo laling'ono kwambiri ndipo samakhudza mfundo yobwezeretsanso komanso yobwezeretsanso. Pachifukwa chokhala wobwezeretsedwanso, njira yoyatsira yomwe imagwiritsidwa ntchito kwambiri ndi PVA yokutira, yomwe imatha kupititsa patsogolo kukana kwa okosijeni. Makulidwe a zokutira ndi pafupifupi 1 ~ 3u, kuwerengera ndalama zochepa. Ponena za ntchito ya kukana kwa okosijeni, ndi njira yotsika mtengo, yomwe imagwirizana ndi mfundo yobwezeretsanso komanso yobwezeretsanso. Koma PVA ili ndi zofooka ziwiri zoonekeratu: choyamba, sichichita chilichonse kuti chiyimitse madzi; Kachiwiri, ndikosavuta kutaya ntchito yolimbana ndi okosijeni mutatha kuyamwa madzi. Pamaziko oti akhoza kubwezeretsedwanso, njira yomwe imagwiritsidwa ntchito kwambiri ndi co-extrusion ndi EVOH co-extrusion pakadali pano, pomwe PA co-extrusion yomwe imagwiritsidwa ntchito kwambiri sikugwirizana ndi mfundo yobwezeretsanso. Pansi pa mfundo yobwezeretsedwanso, PA ndiyoletsedwa, ndipo gawo lalikulu la EVOH siliposa 5%. EVOH co-extrusion makulidwe ndi pafupifupi 4 ~ 9u, malinga ndi makulidwe a zinthu zazikulu ndi zosiyana, EVOH co-extrusion ndondomeko n'zosavuta kupitirira 5% ya gawo, makamaka makulidwe wonse wa kapangidwe woonda, ndi chotchinga chake amakhalanso ndi ubale mwachindunji ndi makulidwe. Pansi pa mfundo yobwezeretsanso, EVOH ili ndi malire ndi gawo la kuwonjezera ndipo ili ndi kusintha kochepa pa zotchinga. Monga zokutira za PVA, EVOH imangowonjezera kukana kwa okosijeni ndipo simathandizira kukana madzi. Kutengera ukadaulo wamakono wokhwima, makanema a BOPP ndi PET amatha kukana madzi ndi mpweya wabwino. Bolene filimu chotchinga chapamwamba kwambiri cha aluminized BOPP, chotchinga kawiri pansi pa 0.1; Pakalipano, pali matekinoloje okhwima ogwiritsira ntchito njira zitatu kapena ziwiri zotchinga mafilimu opyapyala nthawi imodzi, zokhala ndi ubwino wowonjezera, kuti akwaniritse zolepheretsa bwino. Kutengera ndi luso lamakono lamakono, tebulo lotsatirali likutchula makhalidwe apamwamba a zotchinga zazikulu zomwe zingathe kubwezeretsedwanso, komanso momwe mungabwezeretsere zomwe zingatheke pamtundu uliwonse ndi zochitika zogwiritsira ntchito zomwe zili ndi ubwino wambiri.
Nthawi yotumiza: Mar-23-2023