Ka lole lole hou - Polylactic Acid Fiber

Polylactic acid (PLA)He mea hoʻoheheʻe hou ʻia i hana ʻia mai ka starch i loaʻa mai nā kumuwaiwai mea kanu hou e like me ke kulina a me ka ʻoki.

Hoʻomaʻamaʻa ʻia nā mea maka starch no ka loaʻa ʻana o ka glucose, a laila fermented me kekahi mau ʻano e hana ai i ka waika lactic maʻemaʻe kiʻekiʻe. A laila, hoʻohui ʻia ka lole kānana PLA ʻaʻole i ulana ʻia e hoʻohui i kekahi kaumaha mole o ka polylactic acid. Loaʻa iā ia ka biodegradability maikaʻi. Ma hope o ka hoʻohana ʻana, ma lalo o nā kūlana kikoʻī, hiki ke hoʻohaʻahaʻa ʻia e nā microorganism i ke ʻano, e hana ana i carbon dioxide a me ka wai me ka ʻole o ka hoʻohaumia ʻana i ke kaiapuni. He mea maikaʻi loa kēia no ka mālama ʻana i ke kaiapuni.PLA lole i ulana ʻole ʻiamanaʻo ʻia he mea pili i ke kaiapuni.

Hana ʻia ka polylactic acid fiber mai nā huahana mahiʻai starchy e like me ke kulina, ka palaoa, a me nā beets kō, i hoʻomoʻa ʻia e hana i ka waikawa lactic, a laila emi a hoʻoheheʻe ʻia e ka milo. ʻO ka polylactic acid fiber kahi fiber synthetic hiki ke kanu a maʻalahi ke ulu. Hiki ke hoʻohaʻahaʻa maoli ʻia ka ʻōpala ma ke ʻano.

Hoʻokō biodegradable.

ʻO ka polylactic acid fiber ka mea nui a hiki ke hana hou. He biodegradability maikaʻi nā fibers polylactic acid a hiki ke hoʻopau loa ʻia i carbon dioxide a me H2O ma ke ʻano ma hope o ka hoʻolei ʻia ʻana. Hiki i nā mea ʻelua ke lilo i mea maka no ka starch lactic acid ma o photosynthesis. Ma hope o 2-3 mau makahiki i ka lepo, e nalowale ka ikaika o nā pulu PLA. Inā kanu pū ʻia me nā ʻōpala organik ʻē aʻe, e popopo ia i loko o kekahi mau mahina. Eia kekahi, ua hydrolyzed ka waika polylactic i loko o ka waikawa lactic e ka waikawa a i ʻole nā ​​enzyme i loko o ke kino kanaka. ʻO ka waikawa lactic kahi huahana metabolic o nā pūnaewele a hiki ke hoʻololi hou ʻia e nā enzymes e hana ai i carbon dioxide a me ka wai. No laila, ʻoi aku ka maikaʻi o ka biocompatibility o ka polylactic acid fibers.

ʻO ka hana hoʻoheheʻe wai

Loaʻa i nā pulu PLA maikaʻi ka hoʻoheheʻe ʻana a me ka conductivity, e like me ka degradability. Ua pili pū ka hana ʻana i ka moisture me ka morphology a me ke ʻano o nā fiber. ʻO ka ili lōʻihi o nā fibers PLA he mau kiko kūpono ʻole a me nā kaha ʻoki ʻole, nā pores a me nā māwae, hiki ke hana maʻalahi i nā hopena capillary a hōʻike i ka absorption kumu maikaʻi, moisturizing a me nā waiwai diffusion wai.

Nā hana ʻē aʻe

Loaʻa iā ia ka haʻahaʻa flammability a me kekahi mau ahi retardancy; ʻOi aku ka maikaʻi o ka hana dyeing ma mua o nā fiber textile maʻamau, ʻaʻole kū i ka waika a me ka alkali, a maʻalahi hoʻi e hydrolyze. I ka wā o ke kala ʻana, pono e nānā pono i ka mana o ka acidity a me ka alkalinity; ʻO ka hoʻomanawanui ikaika i ka radiation ultraviolet, akā pili i ka photodegradation; Ma hope o 500 mau hola o ka hoʻolaha ʻana i waho, hiki ke mālama ʻia ka ikaika o nā fibers PLA ma kahi o 55% a loaʻa ke kūpaʻa maikaʻi i ka wā.

ʻO ka mea maka no ka hana ʻana i ka polylactic acid fiber (PLA) he lactic acid, i hana ʻia mai ka starch kulina, no laila ua kapa ʻia kēia ʻano fiber i ka fiber corn. Hiki ke hana ʻia ma ka fermenting sugar beets a i ʻole nā ​​​​palapala me ka glucose e hoʻemi i ke kumukūʻai o ka hoʻomākaukau ʻana i nā polymers acid lactic. Hiki ke kiʻi ʻia ka waika polylactic kiʻekiʻe ma o ka polymerization kemika o nā dimer cyclic acid lactic a i ʻole ka polymerization pololei o ka waikawa lactic.

ʻO nā huahana i hana ʻia mai ka polylactic acid he biocompatibility maikaʻi, bioabsorbability, antibacterial a me ke ahi retardancy, a he pale wela ka PLA i nā polymers thermoplastic degradable.

Hiki ke hoʻoheheʻe ʻia ka fiber polylactic acid i carbon dioxide a me ka wai ma ka lepo a i ʻole ka wai kai. Ke puhi ʻia, ʻaʻole ia e hoʻokuʻu i nā kinoea ʻawaʻawa a ʻaʻole e hoʻohaumia. He fiber kaiaola hoomau ia. He maikaʻi kona lole, he drape maikaʻi, kūpaʻa i nā kukuna UV, haʻahaʻa ka flammability, a me ka hana hoʻoponopono maikaʻi loa. He kūpono ia no nā ʻano ʻano like ʻole, nā lole leʻaleʻa, nā waiwai haʻuki, a me nā huahana maʻemaʻe, a loaʻa nā manaʻo ākea ākea.