Rauemi Whakarerekehia te werohanga werohanga biodegradable

He maha nga huarahi ahumahi ka taea te whakamahi (ara te taumaha ngota teitei) PLA. E rua nga monomers matua e whakamahia ana: te waikawa lactic, me te cyclic di-ester, lactide. Ko te huarahi tino noa ki te PLA ko te whakawhanaunga-whakatuwheratanga o te lactide me nga momo whakakorikori whakarewa (te nuinga o te tine octoate) i roto i te otinga, hei whakatarewa ranei. Ko te tauhohenga whakarewa-catalyzed e kaha ana ki te whakatiki i te PLA, ka whakaheke i te ahua o te ahua o te ahua ki te mea timatanga (te nuinga o te wa ko te maaka witi).

He wairewa te PLA i roto i nga momo whakarewa pararopi. Ko te Ethyl acetate, na te ngawari o te uru me te iti o te tupono ki te whakamahi, he tino painga. Ka memeha te kakawaua pūreretā PLA 3D ina rukuhia ki te ethyl acetate, ka waiho hei whakarewa whai hua mo te horoi i nga upoko extruder tā 3D, te tango ranei i nga tautoko PLA. He iti te ira kohua o te ethyl acetate ki te maeneene hoki i te PLA i roto i te ruuma kohu, he rite ki te whakamahi i te kohu acetone ki te maeneene ABS.

Ko etahi atu whakarewa haumaru hei whakamahi ko te propylene carbonate, he haumaru ake i te ethyl acetate engari he uaua ki te hoko hokohoko. Ka taea hoki te whakamahi Pyridine engari he iti ake te haumaru i te ethyl acetate me te propylene carbonate. He kakara kino ano te ika.