Hiki i kekahi mau ala ʻoihana ke hoʻohana (ʻo ia hoʻi ke kaumaha molekala kiʻekiʻe) PLA. Hoʻohana ʻia ʻelua monomer nui: ka waikawa lactic, a me ka cyclic di-ester, lactide. ʻO ke ala maʻamau i PLA ʻo ia ka polymerization wehe ʻana o ka lactide me nā catalyst metala like ʻole (maʻamau ka tin octoate) i ka hopena a i ʻole he hoʻokuʻu. ʻO ka hopena metala-catalyzed ke kumu o ka racemization o ka PLA, e hōʻemi ana i kona stereoregularity i hoʻohālikelike ʻia me ka mea hoʻomaka (maʻa mau i ka starch kulina).
Hiki ke hoʻoheheʻe ʻia ʻo PLA i nā ʻano mea hoʻoheheʻe organik. ʻO ka Ethyl acetate, ma muli o ka maʻalahi o ke komo ʻana a me ka haʻahaʻa haʻahaʻa o ka hoʻohana ʻana, he mea hoihoi loa ia. Hoʻoheheʻe ʻia ka filament mīkini paʻi 3D i ka wā i hoʻomoʻi ʻia i ka ethyl acetate, e lilo ia i mea hoʻoheheʻe pono no ka hoʻomaʻemaʻe ʻana i nā poʻo extruder paʻi 3D a i ʻole ka wehe ʻana i nā kākoʻo PLA. He haʻahaʻa loa ka pae paila o ka ethyl acetate e hoʻomāmā i ka PLA i loko o ke keʻena mahu, e like me ka hoʻohana ʻana i ka mahu acetone e hoʻomāmā i ka ABS.
ʻO nā mea hoʻoheheʻe palekana ʻē aʻe e hoʻohana ai, ʻo ia ka propylene carbonate, ʻoi aku ka palekana ma mua o ka ethyl acetate akā paʻakikī ke kūʻai aku ma ke kālepa. Hiki ke hoʻohana ʻia ka Pyridine akā ʻaʻole palekana kēia ma mua o ka ethyl acetate a me propylene carbonate. He ʻala iʻa ʻino pū kekahi.
ʻO nā mea nui o ka huahana hePLA, PBAT a me nā mea ʻole ʻO kēia ʻano huahana he meltfluidity maikaʻi a me ka ikaika mechanical kiʻekiʻe, a kūpono loa no ka injectionmolding. Hiki iā ia ke hana i nā huahana multi-cavity me kahi manawa hoʻomaha pōkole, haʻahaʻa haʻahaʻa, a me ka wikiwiki wikiwiki. He hana maikaʻi ka huahana a me nā pono kino, a hiki ke hoʻohana pololei ʻia no ka hoʻoheheʻe ʻana e hana i nā huahana like ʻole.
ʻO ka paʻakikī kiʻekiʻe, ka ikaika kiʻekiʻe 3D paʻi mea i hoʻololi ʻia,
Paʻi 3D ikaika kiʻekiʻe ke kumu kūʻai i hoʻololi ʻia
Papa | wehewehe | Nā ʻōlelo kuhikuhi |
SPLA-IM115 | ʻO nā mea nui o ka huahana hePLA, PBAT a me nā mea ʻole ʻO kēia ʻano huahana he meltfluidity maikaʻi a me ka ikaika mechanical kiʻekiʻe, a kūpono loa no ka injectionmolding. | I ka hoʻohana ʻana i kēia huahana no ka hoʻoheheʻe ʻia ʻana, ʻōlelo ʻia e 180-195 ka mahana o ka hana injection |