ʻEono mau ʻāpana nui o nā plastics maʻamau, polyester (PET polyethylene terephthalate), high-density polyethylene (HDPE), low-density polyethylene (LDPE), polypropylene (PP), polyvinyl chloride (PVC), polystyrene (PS).
Akā, ʻike ʻoe pehea e ʻike ai i kēia mau plastic? Pehea e hoʻomohala ai i kou "maka ahi" ponoʻī? E aʻo aku wau iā ʻoe i kekahi mau hana kūpono, ʻaʻole paʻakikī ke ʻike i nā plastics maʻamau i hoʻohana ʻia i kekona!
Aia ma kahi o kēia mau ʻano hana no ka ʻike ʻana i nā plastics: ʻike maka, ʻike hoʻopau, ʻike kikoʻī, ʻike hehee, ʻike solvent, etc.
ʻO nā ala mua ʻelua he maʻalahi a maʻalahi hoʻi e hoʻohana, a hiki iā lākou ke ʻike maikaʻi i kēia mau ʻano plastics. Hiki ke hoʻokaʻawale i nā plastics i ke ʻano ʻike kikoʻī a hoʻohana pinepine ʻia i ka hana hana. No laila, eia mākou e hoʻolauna nui nei i ʻekolu o lākou.
Loaʻa i kēlā me kēia plastic kona mau hiʻohiʻona ponoʻī, me nā kala like ʻole, ka ʻōlinolino, ke aniani,paakiki, etc. 'O ka 'ike 'ana ke 'ano o ka 'ike 'ana i nā 'ano like 'ole ma muli o kahiʻona hiʻonao na palaka.
Hōʻike ka papa ma lalo i nā hiʻohiʻona hiʻohiʻona o kekahi mau plastik maʻamau. Hiki i nā limahana hoʻokaʻawale ʻike ke hoʻokaʻawale pololei i nā ʻano plastics e pili ana i kēia mau hiʻohiʻona.
ʻO ka ʻike hiʻohiʻona o kekahi mau plastic i hoʻohana mau ʻia
1. Polyethylene PE
Pono: Ke kala ʻole ʻia, he keʻokeʻo waiu, translucent, a me ka waxy; ʻoluʻolu ka huahana ke hoʻopā ʻia e ka lima, palupalu a paʻakikī, a elongated iki. ʻO ka maʻamau, ʻoi aku ka palupalu o ka polyethylene haʻahaʻa a ʻoi aku ka maikaʻi o ke aniani, ʻoiai ʻoi aku ka paʻakikī o ka polyethylene kiʻekiʻe.
Nā huahana maʻamau: kiʻiʻoniʻoni plastik, ʻeke lima, paipu wai, pahu ʻaila, ʻōmole inu (ʻeke waiu calcium), pono i kēlā me kēia lā, etc.
2. Polypropylene PP
Pono: He keʻokeʻo, translucent a me ka waxy ke kala ʻole; ʻoi aku ka māmā ma mua o ka polyethylene. ʻOi aku ka maikaʻi ma mua o ka polyethylene a ʻoi aku ka paʻakikī ma mua o ka polyethylene. Kūleʻa wela maikaʻi, hanu maikaʻi, pale wela a hiki i 167 ° C.
Nā huahana maʻamau: nā pahu, nā barela, nā kiʻiʻoniʻoni, nā lako, nā ʻeke i ulana ʻia, nā ʻeke ʻeke, nā bumper kaʻa, etc.
3. Polystyrene PS
Nā Pono: Alohilohi ke kala ʻole. E kani ka hua metala ke hāʻule a paʻi paha. Loaʻa iā ia ka ʻōlinolino maikaʻi a me ke aniani, e like me ke aniani. He palupalu a maʻalahi ke haki. Hiki iā ʻoe ke ʻoki i ka ʻili o ka huahana me kou mau manamana lima. ʻO ka polystyrene i hoʻololi ʻia he opaque.
Nā huahana maʻamau: nā mea kākau, nā kīʻaha, nā pahu meaʻai, nā pahu mea hana hale, nā mea uila, etc.
4. Polyvinyl chloride PVC
Pono: ʻO ke kala kumu he melemele iki, translucent a ʻālohilohi. ʻOi aku ka maikaʻi ma mua o ka polyethylene a me ka polypropylene, akā ʻoi aku ka maikaʻi ma mua o ka polystyrene. Ma muli o ka nui o nā mea hoʻohui i hoʻohana ʻia, ua māhele ʻia i PVC palupalu a paʻakikī. ʻO nā huahana palupalu he maʻalahi a paʻakikī, a ʻoluʻolu hoʻi. He ʻoi aku ka paʻakikī o nā huahana paʻakikī ma mua o ka polyethylene haʻahaʻa haʻahaʻa akā ʻoi aku ka haʻahaʻa ma mua o ka polypropylene, a e ʻike ʻia ke keʻokeʻo ma nā piko. Hiki iā ia ke pale i ka wela a hiki i 81°C.
Nā huahana maʻamau: nā kapuaʻi kāmaʻa, nā mea pāʻani, nā ʻili uwea, nā puka a me nā puka makani, nā mea kākau, nā pahu pahu, etc.
5. Polyethylene terephthalate PET
Nā waiwai: ʻOi aku ka maikaʻi o ka ʻike, ʻoi aku ka ikaika a me ka paʻakikī ma mua o ka polystyrene a me ka polyvinyl chloride, ʻaʻole maʻalahi ka haki ʻana, ʻoluʻolu a ʻālohilohi. Kūleʻa i ka waikawa a me ka alkali, ʻaʻole kūʻē i nā mahana kiʻekiʻe, maʻalahi ke hoʻololi (hiki ke kū i nā mahana ma lalo o 69 ° C).
Nā huahana maʻamau: nā ʻōmole pinepine: ʻO nā ʻōmole Coke, nā ʻōmole wai mineral, etc.
kahi mea hou aʻe
Hiki ke ʻike ʻia nā ʻano ʻeono i hoʻohana maʻamau ʻia ehōʻailona hana hou. Aia ka hōʻailona hana hou ma lalo o ka ipu. ʻO ka māka Pākē he helu helu ʻelua me ka "0" ma mua. ʻO ka māka haole he huahelu hoʻokahi me ka "0". Hōʻike nā helu ma lalo i ke ʻano like o ka plastic. Loaʻa kēia hōʻailona i nā huahana mai nā mea hana maʻamau. Ma o ka hōʻailona hana hou, hiki ke ʻike pololei ʻia ke ʻano o ka plastic.
No nā ʻano plastik maʻamau, hiki ke hoʻohana ʻia ke ʻano puhipuhi e ʻike pono iā lākou. ʻO ka maʻamau, pono ʻoe e mākaukau i ke koho ʻana a loaʻa iā ʻoe kahi haku nāna e alakaʻi iā ʻoe no kekahi manawa, a i ʻole hiki iā ʻoe ke loaʻa i nā plastik like ʻole a hana ʻoe i nā hoʻokolohua hoʻopau ʻana iā ʻoe iho, a hiki iā ʻoe ke haku iā lākou ma ka hoʻohālikelike ʻana a me ka hoʻopaʻanaʻau pinepine ʻana iā lākou. ʻAʻohe ala pōkole. Huli. Hiki ke hoʻohana ʻia ke kala a me ka ʻala o ka lapalapa i ka wā e ʻā ai a me ke aupuni ma hope o ka haʻalele ʻana i ke ahi i kumu no ka ʻike.
Inā ʻaʻole hiki ke hoʻopaʻa ʻia ke ʻano o ka plastic mai ka hanana ʻana, hiki ke koho ʻia nā laʻana o nā ʻano plastik i ʻike ʻia no ka hoʻohālikelike ʻana a me ka ʻike no nā hopena maikaʻi aʻe.
03Ka hoʻomaopopo ʻana i ka Density
He ʻokoʻa nā ʻano like ʻole o nā plastik, a ʻokoʻa hoʻi ko lākou puʻu ʻana a me ka lana ʻana i ka wai a me nā mea hoʻonā ʻē aʻe. Hiki ke hoʻohana ʻia nā haʻina like ʻoleʻokoʻa nā ʻano like ʻole. Hōʻike ʻia nā density o kekahi mau plastics maʻamau a me nā density o nā wai maʻamau i ka papa ma lalo. Hiki ke kohoʻia nā wai likeʻole e like me keʻano o ka hoʻokaʻawaleʻana.
Hiki ke holoi ʻia ʻo PP a me PE mai PET me ka wai, a hiki ke holoi ʻia ʻo PP, PE, PS, PA, a me ABS me ka brine saturated.
Hiki ke lana ʻia ʻo PP, PE, PS, PA, ABS, a me PC me ka hoʻonā wai wai calcium chloride. ʻO PVC wale nō ka like me ka PET a ʻaʻole hiki ke hoʻokaʻawale ʻia mai PET ma ke ʻano lana.
Ka manawa hoʻouna: Nov-30-2023