Nanomaterials iri shida na yawan amfani da thermal conductive nanomaterials
1. Nano diomand
Lu'u-lu'u shine kayan da ke da mafi girman halayen thermal a cikin yanayi, tare da haɓakar thermal har zuwa 2000 W / (mK) a yanayin zafin jiki, ƙimar haɓakawar thermal na kusan (0.86 ± 0.1) * 10-5 / K, da kuma rufi a ɗakin. Temperatuur. Bugu da ƙari, lu'u-lu'u kuma yana da kyawawan kayan aikin injiniya, acoustic, na gani, lantarki da sinadarai, wanda ya sa yana da fa'ida a bayyane a cikin ɓarkewar zafi na na'urorin photoelectric masu ƙarfi, wanda kuma ya nuna cewa lu'u-lu'u yana da babban damar aikace-aikacen a filin watsawar zafi.
2. BN
Tsarin crystal na hexahedral boron nitride yayi kama da na tsarin Layer graphite.Yana da wani farin foda wanda aka kwatanta da sako-sako, lubricating, sauƙi mai sauƙi da nauyi mai nauyi. Ƙirar ƙa'idar ita ce 2.29g / cm3, mohs hardness ne 2, da kuma sinadaran Properties ne musamman barga.The samfurin yana da high danshi juriya kuma za a iya amfani da a nitrogen ko argon a yanayin zafi har zuwa 2800 ℃.It ba kawai yana da low thermal fadada coefficient, amma kuma yana da wani high thermal watsin, shi ne ba kawai mai kyau shugaba na zafi, amma na hali lantarki insulator.The thermal watsin na BN ya 730w / mk ku 300k.
3. SIC
Abubuwan sinadarai na silicon carbide sun tsaya tsayin daka, kuma yanayin zafinsa ya fi sauran masu sarrafa sinadarai, kuma yanayin zafinsa ya ma fi ƙarfe a yanayin zafin daki.Masu bincike daga jami'ar Beijing ta fasahar sinadarai sun yi nazarin yanayin zafi na alumina da silicon carbide. ƙarfafa silicone rubber.Sakamako ya nuna cewa zafin zafin jiki na silicone rubber yana ƙaruwa tare da karuwar adadin silicone carbide.Da adadin adadin silicone carbide. .
4. ALN
Aluminum nitride shine crystal atomic kuma yana iya wanzuwa a tsaye a babban zafin jiki na 2200 ℃.Tare da kyawawan halayen thermal da ƙananan haɓakar haɓakar haɓakar thermal, yana da kyakkyawan tasirin tasirin zafi mai ƙarfi.The thermal conductivity na aluminum nitride ne 320 W · (m · K) -1, wanda yake kusa da thermal conductivity na boron oxide da kuma silicon carbide kuma fiye da sau 5 na alumina.
Hanyar aikace-aikace: thermal silica gel tsarin, thermal filastik tsarin, thermal epoxy guduro tsarin, thermal yumbu kayayyakin.
5. Farashin AL2O3
Alumina wani nau'i ne na kayan aikin inorganic mai aiki da yawa, tare da babban haɓakar thermal, dielectric akai-akai kuma mafi kyawun juriya, ana amfani dashi sosai a cikin kayan haɗin roba, kamar gel silica, sealant potting, resin epoxy, filastik, roba thermal conductivity, thermal conductivity filastik. , Silicone man shafawa, yumbura mai zafi da sauran kayan.A cikin aikace-aikacen aikace-aikacen, ana iya amfani da filler Al2O3 shi kaɗai ko a haɗe shi da sauran filler kamar AIN, BN, da sauransu.
6.Carbon Nanotubes
Thermal watsin na carbon nanotubes ne 3000 W · (m · K) -1, 5 sau na jan karfe. Carbon nanotubes iya muhimmanci inganta thermal watsin, conductivity da kuma jiki Properties na roba, da kuma ƙarfafawa da thermal watsin ne mafi alhẽri daga gargajiya. fillers kamar carbon baki, carbon fiber da gilashin fiber.