Kodi mumadziwa zizindikiro zomwe zili pansi pa botolo lapulasitiki?

Mabotolo apulasitikiakhala mbali yofunika ya moyo wathu watsiku ndi tsiku.Timazigwiritsa ntchito posungira madzi, zakumwa, ngakhalenso zoyeretsa m’nyumba.Koma kodi munayamba mwawonapo zizindikiro zing'onozing'ono zolembedwa pansi pa mabotolo awa?Amakhala ndi chidziwitso chofunikira chokhudza mtundu wa pulasitiki wogwiritsidwa ntchito, malangizo obwezeretsanso, ndi zina zambiri.Mu blog iyi, tifufuza tanthauzo la zizindikirozi komanso kufunika kwake pakumvetsetsa mapulasitiki omwe timagwiritsa ntchito.

Mabotolo apulasitiki amalembedwa ndi chizindikiro cha katatu chodziwika kuti Resin Identification Code (RIC).Chizindikirochi chimakhala ndi nambala kuyambira 1 mpaka 7, yotsekeredwa mkati mwa mivi yothamangitsa.Nambala iliyonse imayimira mtundu wina wa pulasitiki, kuthandiza ogula ndi malo obwezeretsanso kuti azindikire ndikusintha moyenera.

Tiyeni tiyambe ndi chizindikiro chogwiritsidwa ntchito kwambiri, nambala 1. Imaimira Polyethylene Terephthalate (PET kapena PETE) - pulasitiki yofanana yomwe imagwiritsidwa ntchito m'mabotolo a zakumwa zoziziritsa kukhosi.PET imavomerezedwa kwambiri ndi mapulogalamu obwezeretsanso ndipo imatha kusinthidwa kukhala mabotolo atsopano, fiberfill ya jekete, ngakhale kapeti.

Kusunthira ku nambala 2, tili ndi High-Density Polyethylene (HDPE).Pulasitiki iyi imagwiritsidwa ntchito kwambiri m'majugi amkaka, mabotolo otsukira, ndi matumba ogulitsa.HDPE imathanso kubwezeretsedwanso ndipo imasinthidwa kukhala matabwa apulasitiki, mapaipi, ndi nkhokwe zobwezeretsanso.

Nambala 3 imayimira Polyvinyl Chloride (PVC).PVC imagwiritsidwa ntchito kwambiri popanga mapaipi, makanema ophatikizira, ndi matuza.Komabe, PVC sichitha kubwezeretsedwanso mosavuta ndipo imabweretsa zoopsa zachilengedwe panthawi yopanga ndi kutaya.

Nambala 4 imayimira Low-Density Polyethylene (LDPE).LDPE imagwiritsidwa ntchito m'matumba ogulitsa, zokulunga zapulasitiki, ndi mabotolo ofinyidwa.Ngakhale kuti ikhoza kubwezeretsedwanso kumlingo wina, si mapulogalamu onse obwezeretsanso omwe amavomereza.Matumba ogwiritsidwanso ntchito ndi filimu yapulasitiki amapangidwa kuchokera ku LDPE yobwezerezedwanso.

Polypropylene (PP) ndi pulasitiki yosonyezedwa ndi nambala 5. PP imapezeka kawirikawiri m'matumba a yogati, zisoti za mabotolo, ndi zodula zomwe zimagwiritsidwa ntchito.Ili ndi malo osungunuka kwambiri, ndikupangitsa kuti ikhale yabwino kwa zotengera zotetezedwa mu microwave.PP imatha kubwezeretsedwanso ndikusinthidwa kukhala magetsi owunikira, zosungirako, ndi mabatire.

Nambala 6 ndi ya Polystyrene (PS), yomwe imadziwikanso kuti Styrofoam.PS imagwiritsidwa ntchito m'makontena otengera zinthu, makapu otayira, ndi zida zopakira.Tsoka ilo, ndizovuta kukonzanso komanso kusavomerezedwa ndi mapulogalamu ambiri obwezeretsanso chifukwa chotsika mtengo pamsika.

Pomaliza, nambala 7 imaphatikizapo mapulasitiki ena onse kapena zosakaniza.Zimaphatikizapo zinthu monga polycarbonate (PC) zomwe zimagwiritsidwa ntchito m'mabotolo amadzi ogwiritsidwanso ntchito, ndi mapulasitiki owonongeka opangidwa kuchokera ku zomera, ndi zinthu za Tritan zochokera ku Eastman, ndi Ecozen zochokera ku SK chemical.Ngakhale mapulasitiki ena nambala 7 amatha kubwezeretsedwanso, ena satero, ndipo kutaya koyenera ndikofunikira.

Kumvetsetsa zizindikirozi ndi mapulasitiki omwe amafanana nawo kungathandize kwambiri kuchepetsa zinyalala komanso kulimbikitsa machitidwe oyenera obwezeretsanso.Pozindikira mitundu ya pulasitiki yomwe timagwiritsa ntchito, titha kupanga zisankho zomveka bwino pakugwiritsanso ntchito, kukonzanso, kapena kutaya mwanzeru.

Nthawi ina mukatenga botolo la pulasitiki, tengani kamphindi kuti muwone chizindikiro chomwe chili pansi ndikuwona zotsatira zake.Kumbukirani, zochita zing'onozing'ono monga kubwezereranso zinthu zitha kupanga kusiyana kwakukulu pakuteteza chilengedwe chathu.Pamodzi, tiyeni tiyesetse tsogolo lobiriwira komanso lokhazikika.