Ma muli o kona mau waiwai mechanical maikaʻi loa, kūpaʻa wela maikaʻi loa a me ke kūpaʻa kemika koʻikoʻi, ua lilo ka ʻili polyimide i mea maikaʻi loa no nā "lole pale" o ka probe lewa. Eia naʻe, e like me nā polymers hydrocarbon ʻē aʻe, he palupalu nā mea polyimide i ka hoʻouka ʻana o ka oxygen atomika i loko o ke kaiapuni lewa, e hopena ana i ka emi nui ʻana o ko lākou mau waiwai kino a me ka mechanical. I kēia manawa, ʻaʻohe hopena maikaʻi i kēia pilikia. Eia kekahi, ʻo nā kaiapuni koʻikoʻi e like me ka radiation kukuna cosmic a me ka hopena o nā ʻōpala lewa ua hoʻokau pū i nā hoʻāʻo koʻikoʻi i kona kūpaʻa.

ʻO Yu Shuhong, he polopeka ma ke Kulanui o ka ʻEpekema a me ka ʻenehana o Kina a he lālā o ka Chinese Academy of Sciences, ua hoʻomohala i kahi mea membrane composite polyimide-nano-mica hou no nā noi palekana lewa. Hoʻohana ka mea i ka hoʻolālā bionic kū hoʻokahi, a ua hoʻomaikaʻi nui ʻia kona mau waiwai mechanical a me ke ahonui i ke kaiapuni lewa koʻikoʻi. ʻO nā mea noiʻi mai ka makuahine maoli o ka momi "- ʻano papa brick lepo, hoʻolālā akamai i kūkulu ʻia me ka ʻano papa momi papa pālua o ka polyimide - mica nano composite film, e hana i kāna hoʻolaha kiʻekiʻe he kiʻi nano mica dense, me ke kōkua o nā waiwai intrinsic o mica a me nā pono o ka ʻāpana hale, i ka ʻike ʻana i ka hana mechanics mea i hoʻonui maikaʻi ʻia i ka manawa like, Ua hoʻomaikaʻi nui ʻia ke kū'ē ʻana o kona papa luna i ka oxygen atomika, ka radiation ultraviolet a me nā ʻōpala lewa. Ua hōʻike ʻia nā hopena noiʻi pili i nā kiʻiʻoniʻoni Nanocomposite Polyimide-mica i hoʻoulu ʻia e ka nacre pālua me ka paʻa mīkini maikaʻi loa no nā kūlana kaiapuni LEO, ma nā mea holomua.

ʻO Commun.,2018, 9, 2974), nona nā waiwai mechanical maikaʻi loa a me ka hana pale UV a hiki ke hoʻomākaukau ʻia i ka nui nui, ua hui pū ʻia me ka polyimide precursor e loaʻa ai ka membrane polyimide-mica nanocomposite. Ua hoʻohana ʻia nā ʻano kūloko kiʻekiʻe o ka mica e hoʻopiha no ka hemahema o ka polyimide. ʻOkoʻa mai ka hoʻolālā hoʻonohonoho monolayer mua o ka kiʻiʻoniʻoni nano-composite e hoʻohālike ana i ka papa momi, ma kēia noiʻi, ua kūkulu ka hui noiʻi i kahi kiʻiʻoniʻoni nano-composite polyimide-mica me ka papa pālua e like me ka papa momi ma o ka pīpī ʻana a me ka hoʻōla wela, i ʻoi aku ka nui o ka mica nano-sheet ma ka papa luna (Kiʻi AF). Hoʻokō kēia hoʻolālā hoʻolālā i kahi hoʻomaikaʻi maikaʻi i nā waiwai mechanical o ka mea a hoʻolilo i kona ʻili luna i ʻoi aku ka pale ʻana i ka oxygen atomika, ka radiation ultraviolet a me nā ʻōpala lewa.

Hōʻike nā hopena i ka ikaika tensile, ka modulus o Young a me ka paʻakikī o ka ʻili o ke kiʻiʻoniʻoni composite bionic hou he 125 MPa, 2.2 GPa a me 0.37 GPa, ʻo ia hoʻi he 45%, 100% a me 68% kiʻekiʻe ma mua o nā kiʻiʻoniʻoni polyimide maʻemaʻe (Kiʻi G). Ma muli o ke ʻano kūikawā ʻelua-papa o ka makuahine-o-ka-pearl a me nā pono kūlohelohe o nā nanosheets mica, hōʻike ka membrane composite polyimide-mica ʻelua-papa i ke kū'ē ʻana i ka oxygen atomic (ka helu erosion ≈0.17 × 10-24 cm-3 Atoms -1). ʻOi aku ka maikaʻi ma mua o ke kiʻiʻoniʻoni polyimide maʻemaʻe, ka kiʻiʻoniʻoni composite monolayer polyimide mica me ke ʻano makuahine-o-ka-pearl a me ka mea composite matrix polyimide i hōʻike ʻia ma mua. Eia kekahi, ua hoʻomaikaʻi nui ʻia kona kū'ē ʻana i ka ʻelemakule uv (313 nm) a me ke kūpaʻa wela kiʻekiʻe (380 oC) i hoʻohālikelike ʻia me ke kiʻiʻoniʻoni PI maʻemaʻe.

ʻO ka ʻili polyimide-mica nanocomposite me kahi papa pālua e like me ka mother-of-pearl structure e manaʻo ʻia e pani i ka polyimide-mica nanocomposite film e kū nei ma ke ʻano he mea hou kūpono no ka pale waho o nā mokulele i loko o kahi kaiapuni haʻahaʻa. ʻO ka hoʻolālā hoʻolālā ʻano mother-of-pearl papa pālua kū hoʻokahi i hāpai ʻia ma kēia haʻawina e hāʻawi pū i kahi manaʻo hou no ka hoʻolālā a me ke kūkulu ʻana i nā nanocomposites hana kiʻekiʻe ʻē aʻe.

Ua kākoʻo ʻia ka hana noiʻi e ka National Natural Science Foundation of China (NSFC) Innovation Research Group Project/Key project, cas Key Research Program of Frontier Science, The Fundamental Research Funds for the Central Universities, Anhui Provincial Collaborative Innovation Project a me THE Synchrotron Radiation Joint Fund of USTC.

ʻO ke kiʻikuhi schematic o ke kaʻina hana hoʻomākaukau o ka polyimide - nanometer mica bionic composite film a me kona microstructure, nā waiwai mechanical a me ka hoʻomanawanui oxygen atomic

Nā loulou no ka pepa noiʻi: https://onlinelibrary.wiley.com/doi/full/10.1002/adma.202105299