{"id":692715,"date":"2024-08-06T06:33:12","date_gmt":"2024-08-06T05:33:12","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=692715"},"modified":"2024-08-06T06:33:12","modified_gmt":"2024-08-06T05:33:12","slug":"perfluoromethane-khi-lam-mat-cach-nhiet-nhiet-dong-hoc","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/vi\/perfluoromethane-khi-lam-mat-cach-nhiet-nhiet-dong-hoc\/","title":{"rendered":"Perfluoromethane | Kh\u00ed l\u00e0m m\u00e1t, c\u00e1ch nhi\u1ec7t & nhi\u1ec7t \u0111\u1ed9ng h\u1ecdc"},"content":{"rendered":"

Perfluoromethane | Kh\u00ed l\u00e0m m\u00e1t hi\u1ec7u qu\u1ea3, c\u00e1ch nhi\u1ec7t m\u1ea1nh m\u1ebd & \u1ee9ng d\u1ee5ng trong nhi\u1ec7t \u0111\u1ed9ng h\u1ecdc. T\u00ecm hi\u1ec3u c\u01a1 ch\u1ebf ho\u1ea1t \u0111\u1ed9ng v\u00e0 l\u1ee3i \u00edch c\u1ee7a kh\u00ed n\u00e0y.<\/p>\n

\"Perfluoromethane<\/p>\n

Perfluoromethane | Kh\u00ed l\u00e0m m\u00e1t, c\u00e1ch nhi\u1ec7t & nhi\u1ec7t \u0111\u1ed9ng h\u1ecdc<\/h2>\n

Perfluoromethane, c\u00f2n g\u1ecdi l\u00e0 CF4<\/sub>, l\u00e0 m\u1ed9t h\u1ee3p ch\u1ea5t h\u1eefu c\u01a1 thu\u1ed9c lo\u1ea1i kh\u00ed F-perfluoro. \u0110\u00e2y l\u00e0 m\u1ed9t trong nh\u1eefng kh\u00ed v\u1edbi c\u1ea5u tr\u00fac \u0111\u01a1n gi\u1ea3n nh\u1ea5t trong d\u00f2ng c\u00e1c ch\u1ea5t perfluorocarbon (PFCs). Perfluoromethane c\u00f3 nh\u1eefng \u1ee9ng d\u1ee5ng quan tr\u1ecdng trong l\u0129nh v\u1ef1c l\u00e0m m\u00e1t, c\u00e1ch nhi\u1ec7t v\u00e0 nhi\u1ec7t \u0111\u1ed9ng h\u1ecdc.<\/p>\n

Kh\u00ed l\u00e0m m\u00e1t<\/h2>\n

Perfluoromethane \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i nh\u01b0 m\u1ed9t ch\u1ea5t l\u00e0m m\u00e1t trong ng\u00e0nh c\u00f4ng ngh\u1ec7 \u0111i\u1ec7n t\u1eed. Kh\u1ea3 n\u0103ng t\u1ea3n nhi\u1ec7t c\u1ee7a CF4<\/sub> l\u00e0m n\u00f3 tr\u1edf th\u00e0nh m\u1ed9t l\u1ef1a ch\u1ecdn l\u00fd t\u01b0\u1edfng trong c\u00e1c h\u1ec7 th\u1ed1ng l\u00e0m m\u00e1t n\u01a1i m\u00e0 nhi\u1ec7t \u0111\u1ed9 cao c\u00f3 th\u1ec3 g\u00e2y h\u1ecfng h\u00f3c thi\u1ebft b\u1ecb.<\/p>\n

<\/p>\n

  • Khi \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c h\u1ec7 th\u1ed1ng t\u1ea3n nhi\u1ec7t, CF4<\/sub> gi\u00fap duy tr\u00ec nhi\u1ec7t \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh, t\u1ea1o m\u00f4i tr\u01b0\u1eddng ho\u1ea1t \u0111\u1ed9ng hi\u1ec7u qu\u1ea3 cho c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed.<\/li>\n
  • Kh\u00ed n\u00e0y c\u00f3 t\u00ednh kh\u00f4ng d\u1eabn \u0111i\u1ec7n, do \u0111\u00f3 kh\u00f4ng g\u00e2y nguy hi\u1ec3m ch\u1eadp m\u1ea1ch \u0111i\u1ec7n, l\u00e0m n\u00f3 th\u00edch h\u1ee3p cho c\u00e1c \u1ee9ng d\u1ee5ng \u0111i\u1ec7n t\u1eed.<\/li>\n

    <\/u1><\/p>\n

    C\u00e1ch nhi\u1ec7t<\/h2>\n

    CF4<\/sub> c\u0169ng t\u00ecm th\u1ea5y \u1ee9ng d\u1ee5ng trong c\u00e1c h\u1ec7 th\u1ed1ng c\u00e1ch nhi\u1ec7t tuy\u1ec7t h\u1ea3o nh\u1edd v\u00e0o kh\u1ea3 n\u0103ng gi\u1eef nhi\u1ec7t c\u1ee7a n\u00f3. Kh\u00ed n\u00e0y c\u00f3 t\u00ednh ch\u1ed1ng ch\u00e1y v\u00e0 kh\u00f4ng \u0111\u1ed9c, n\u00ean r\u1ea5t an to\u00e0n khi s\u1eed d\u1ee5ng trong c\u00e1c \u1ee9ng d\u1ee5ng c\u00e1ch nhi\u1ec7t \u0111\u1eb7c bi\u1ec7t.<\/p>\n

    <\/p>\n

  • Khi s\u1eed d\u1ee5ng trong c\u00f4ng nghi\u1ec7p c\u00e1ch nhi\u1ec7t, perfluoromethane gi\u00fap ng\u0103n ch\u1eb7n s\u1ef1 th\u1ea5t tho\u00e1t nhi\u1ec7t, t\u0103ng hi\u1ec7u qu\u1ea3 n\u0103ng l\u01b0\u1ee3ng.<\/li>\n
  • N\u00f3 th\u01b0\u1eddng \u0111\u01b0\u1ee3c d\u00f9ng trong c\u00e1c thi\u1ebft b\u1ecb c\u00e1ch nhi\u1ec7t ch\u00e2n kh\u00f4ng v\u00e0 c\u00e1ch nhi\u1ec7t t\u01b0\u1eddng nh\u00e0.<\/li>\n

    <\/u1><\/p>\n

    Nhi\u1ec7t \u0111\u1ed9ng h\u1ecdc<\/h2>\n

    Trong l\u0129nh v\u1ef1c nhi\u1ec7t \u0111\u1ed9ng h\u1ecdc, Perfluoromethane c\u00f3 m\u1ed9t s\u1ed1 \u0111\u1eb7c t\u00ednh \u0111\u1eb7c bi\u1ec7t m\u00e0 l\u00e0m n\u00f3 tr\u1edf th\u00e0nh m\u1ed9t ch\u1ea5t nghi\u00ean c\u1ee9u th\u00fa v\u1ecb.<\/p>\n

    <\/p>\n

  • Kh\u00ed perfluoromethane c\u00f3 nhi\u1ec7t \u0111\u1ed9 s\u00f4i th\u1ea5p (kho\u1ea3ng -128 \u00b0C), l\u00e0m cho n\u00f3 h\u1eefu \u00edch trong c\u00e1c \u1ee9ng d\u1ee5ng nhi\u1ec7t \u0111\u1ed9 c\u1ef1c th\u1ea5p.<\/li>\n
  • \u00c1p su\u1ea5t h\u01a1i c\u1ee7a n\u00f3 t\u1ea1i nhi\u1ec7t \u0111\u1ed9 ph\u00f2ng c\u0169ng r\u1ea5t th\u1ea5p, \u0111i\u1ec1u n\u00e0y gi\u00fap duy tr\u00ec s\u1ef1 \u1ed5n \u0111\u1ecbnh trong c\u00e1c h\u1ec7 th\u1ed1ng nhi\u1ec7t \u0111\u1ed9ng h\u1ecdc.<\/li>\n

    <\/u1><\/p>\n

    Nh\u1eefng \u1ee9ng d\u1ee5ng kh\u00e1c<\/h2>\n

    B\u00ean c\u1ea1nh c\u00e1c \u1ee9ng d\u1ee5ng \u0111\u00e3 n\u00eau, CF4<\/sub> c\u00f2n \u0111\u01b0\u1ee3c d\u00f9ng trong c\u00e1c l\u0129nh v\u1ef1c kh\u00e1c nh\u01b0:<\/p>\n

    <\/p>\n

  • Kh\u1eafc plasma trong c\u00f4ng nghi\u1ec7p b\u00e1n d\u1eabn, n\u01a1i m\u00e0 kh\u00ed n\u00e0y gi\u00fap \u0111\u1ecbnh h\u00ecnh v\u00e0 l\u00e0m s\u1ea1ch b\u1ec1 m\u1eb7t b\u00e1n d\u1eabn.<\/li>\n
  • L\u00e0m m\u00f4i tr\u01b0\u1eddng tr\u01a1 trong c\u00e1c ph\u1ea3n \u1ee9ng h\u00f3a h\u1ecdc nh\u1ea1y c\u1ea3m v\u1edbi oxy v\u00e0 \u0111\u1ed9 \u1ea9m.<\/li>\n

    <\/u1><\/p>\n

    Nh\u1edd v\u00e0o c\u00e1c \u0111\u1eb7c t\u00ednh l\u00fd h\u00f3a \u0111\u1eb7c bi\u1ec7t, \u1ee9ng d\u1ee5ng c\u1ee7a perfluoromethane r\u1ea5t l\u00e0 \u0111a d\u1ea1ng. Tuy nhi\u00ean, c\u1ea7n l\u01b0u \u00fd r\u1eb1ng CF4<\/sub> l\u00e0 m\u1ed9t kh\u00ed nh\u00e0 k\u00ednh m\u1ea1nh, v\u00ec v\u1eady vi\u1ec7c s\u1eed d\u1ee5ng n\u00f3 c\u1ea7n tu\u00e2n th\u1ee7 c\u00e1c quy \u0111\u1ecbnh nghi\u00eam ng\u1eb7t \u0111\u1ec3 b\u1ea3o v\u1ec7 m\u00f4i tr\u01b0\u1eddng.<\/p>\n","protected":false},"excerpt":{"rendered":"

    Perfluoromethane | Kh\u00ed l\u00e0m m\u00e1t hi\u1ec7u qu\u1ea3, c\u00e1ch nhi\u1ec7t m\u1ea1nh m\u1ebd & \u1ee9ng d\u1ee5ng trong nhi\u1ec7t \u0111\u1ed9ng h\u1ecdc. T\u00ecm hi\u1ec3u c\u01a1 ch\u1ebf ho\u1ea1t \u0111\u1ed9ng v\u00e0 l\u1ee3i \u00edch c\u1ee7a kh\u00ed n\u00e0y.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[132],"tags":[],"yoast_head":"\nPerfluoromethane | Kh\u00ed l\u00e0m m\u00e1t, c\u00e1ch nhi\u1ec7t & nhi\u1ec7t \u0111\u1ed9ng h\u1ecdc<\/title>\n<meta name=\"description\" content=\"Perfluoromethane | Kh\u00ed l\u00e0m m\u00e1t hi\u1ec7u qu\u1ea3, c\u00e1ch nhi\u1ec7t m\u1ea1nh m\u1ebd & \u1ee9ng d\u1ee5ng trong nhi\u1ec7t \u0111\u1ed9ng h\u1ecdc. 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