ʻO ka lole lole lole hou - Polylactic Acid Fiber

ʻO ka polylactic acid (PLA) kahi mea ola hou i hoʻokumu ʻia a hiki ke hoʻololi hou ʻia i hana ʻia mai ka starch maka i loaʻa mai nā kumu mea kanu hou e like me ke kulina a me ka cassava.

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. ʻO ka lole ʻaʻole i ulana ʻia ʻo PLA i manaʻo ʻia he mea pili 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.

ʻO nā waiwai o nā fiber polylactic acid

Ka hana 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 hiʻohiʻona o nā fiber polylactic acid

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.

No ka hoʻohana ʻana i nā fiber polylactic acid

Na waiwai kino oPLA pulu kulina lole i ulana ole ia

ʻOi loa ma ke kahua o ka biomedicine, loaʻa iā ia nā manaʻo hoʻohana ākea i nā ʻano ʻehā.

1. ʻokiʻoki ʻia

Hiki ke hoʻohana ʻia ka polylactic acid fibers (PLA) a me kā lākou copolymers ma ke ʻano he sutures ʻokiʻoki e hāpai i ka hoʻōla ʻana i ka ʻeha a me ka hoʻohaʻahaʻa ʻana a me ka absorption ma hope, no ka mea, he biodegradability a hiki ke komo i loko o ka vivo. Pono e loa'a i ka 'ikepili o ka suture surgical i mana'o ikaika 'ia

ʻO ka co degradation rate o ka ikaika a me ka manawa ho'ōla ʻeha.

I nā makahiki i hala iho nei, ua kālele nui nā kūkākūkā i ka haku ʻana o ka waika polylactic kiʻekiʻe molecular kaumaha, ka hoʻomaikaʻi ʻana i ka ʻenehana hana suture, a me ka hoʻonui ʻana i ka ikaika mechanical suture; ʻOi aku ka maikaʻi o ka hoʻokumu ʻana o nā polymers photoactive PDLA a me PLLA no nā ʻokiʻoki ʻana, ʻoiai ʻo PDLA semi-kristal a me PLLA i ʻoi aku ka ikaika mechanical, ʻoi aku ka nui o ka tensile, a haʻahaʻa ka pōkole pōkole ma mua o ka PDLA amorphous; ʻO ka hoʻolālā ʻana o ka humuhumu nui.

2. Nā lako paʻa kūloko

Hiki ke hoʻohana i ka lole PLA non-woven e hoʻonui i ka polylactic acid, e hoʻomaikaʻi nui i ka ikaika mua o nā mea paʻa.

3. Hoʻonohonoho i nā mea ʻenehana

Hiki ke hoʻohana ʻia nā fibers polylactic acid i mea no ka ulana ʻana a i ʻole ka hoʻonohonoho ʻana i nā kākoʻo ʻenekinia. Ma ka hoʻoponopono ʻana i ka microenvironment o ka scaffold, hiki ke hoʻomalu ʻia ka ulu ʻana o ka cell a me ka hana, a laila hiki ke hoʻolaha ʻia nā hoʻonohonoho transplantable, nā ʻāpana, a i ʻole nā ​​mea in vitro e hoʻokō i ka pahuhopu o ka hoʻoponopono ʻana a me ke kūkulu hou ʻana i nā hana i nalowale.

4. Kiʻiʻoniʻoni hoʻōla hou periodontal

ʻO ka membrane periodontal kahi mea e alakaʻi ai a hoʻonohonoho i ka hana hou. Hoʻohana ʻo ia i ka membrane i mea pale e pale aku ai a hoʻopaʻa i ka pilina ma waena o ke kāʻei a me ke ʻano o ke aʻa niho, e hoʻokuʻu ana i kahi no ka ulu ʻana o nā ligaments periosteal a me / a i ʻole nā ​​​​pūnaewele iwi alveolar, a laila e loaʻa ai ka hopena hoʻōla o ka maʻi periodontal. Me ka hoʻohana ʻana i nā fibers polylactic acid ma ke ʻano he mea maka, e ulana i nā pepa hoʻolaʻa periodontal no ka absorption kanaka.

5. Auwai neural

6. 'ē aʻe

Ma muli o kāna mau waiwai mechanical a me ka biodegradability, hiki ke hoʻohana ʻia nā fibers polylactic acid e like me nā diapers, gauze tapes, a me nā lole hana hoʻopau. Hiki ke hoʻokaʻawale ʻia ko lākou ʻōpala i loko o 6 mau mahina ma hope o ke kanu ʻia ʻana i ka lepo.

ʻO Dongguan Liansheng Nonwoven Fabric Co., Ltd., He mea hana i nā lole i ulanaʻoleʻia a me nā lole i ulanaʻoleʻia, pono iāʻoe ke hilinaʻi!