He aha ka PLA FILM?
ʻO ke kiʻiʻoniʻoni PLA he kiʻiʻoniʻoni biodegradable a pili i ke kaiapuni i hana ʻia mai ke kulina Polylactic Acid resin.organic kumu e like me ka starch kulina a i ʻole ke kō. ʻO ka hoʻohana ʻana i nā kumuwaiwai biomass e ʻokoʻa ka hana PLA mai ka hapa nui o nā plastics, i hana ʻia me ka hoʻohana ʻana i nā wahie fossil ma o ka distillation a me ka polymerization o ka ʻaila.
ʻOiai ka ʻokoʻa o ka waiwai maka, hiki ke hana ʻia ka PLA me ka hoʻohana ʻana i nā lako like me ka petrochemical plastics, e hana ana i nā kaʻina hana PLA me ke kumu kūʻai. ʻO PLA ka lua o ka bioplastic i hana nui ʻia (ma hope o ka starch thermoplastic) a he ʻano like me ka polypropylene (PP), polyethylene (PE), a i ʻole polystyrene (PS), a me ka biodegradeable.
Loaʻa i ka kiʻiʻoniʻoni ka mālamalama maikaʻi、Ka ikaika tensile maikaʻi、a ʻo ka ʻoʻoleʻa maikaʻi a me ka paʻakikī. Ua hōʻoia ʻia kā mākou mau kiʻi ʻoniʻoni PLA no ka hoʻopili ʻana e like me ka palapala EN 13432
Hōʻike ʻia ke kiʻi ʻoniʻoni PLA ʻo ia kekahi o nā kiʻi ʻoniʻoni ʻoi aku ka maikaʻi i ka ʻoihana hoʻopili maʻalahi, a i kēia manawa ua hoʻohana ʻia i nā pūʻolo no ka pua, makana, nā meaʻai e like me ka berena a me ka biscuit, nā pīni kope.
Pehea ka PLA?
ʻO ka PLA he polyester (polymer i loko o ka pūʻulu ester) i hana ʻia me ʻelua mau monomer a i ʻole nā poloka hale: lactic acid, a me ka lactide. Hiki ke hana ʻia ka ʻakika lactic e ka fermentation bacteria o kahi kumu carbohydrate ma lalo o nā kūlana hoʻomalu. I ka hana ʻana i ka ʻakika lactic ma ka ʻoihana, ʻo ke kumu waiʻapona i koho ʻia ʻo ka starch kulina, aʻa cassava, a i ʻole ke kō, e hoʻomau i ke kaʻina hana.
KA POMAIKAI AINA O PLA
Hiki ke hoʻoheheʻe ʻia ka PLA ma lalo o nā kūlana compost pāʻoihana a e wāwahi ʻia i loko o nā pule he ʻumikumamālua, e lilo ia i mea koho ʻoi aku ka maikaʻi o ke kaiapuni i ka wā e pili ana i nā plastics i ʻokoʻa me nā plastics kuʻuna e hiki ke hoʻopau i nā kenekulia e decompose a hoʻopau i ka hana ʻana i nā microplastics.
ʻOi aku ka maikaʻi o ke kaiapuni o ke kaʻina hana no ka PLA ma mua o nā plastic plastic kuʻuna i hana ʻia mai nā kumuwaiwai fossil palena. Wahi a ka noiʻi, ʻo ka hoʻokuʻu kalapona e pili ana i ka hana PLA he 80% ka haʻahaʻa ma mua o ka plastic plastic (kumu).
Hiki ke hoʻohana hou ʻia ka PLA no ka mea hiki ke wāwahi ʻia i kona monomer mua e ke kaʻina depolymerization thermal a i ʻole hydrolysis. ʻO ka hopena he hopena monomer hiki ke hoʻomaʻemaʻe a hoʻohana ʻia no ka hana PLA ma hope me ka ʻole o ka nalowale o ka maikaʻi.
Ka manawa hoʻouna: Jan-31-2023