1、定義：導(dǎo)熱系數(shù)是指在穩(wěn)定傳熱條件下，1m厚的材料，兩側(cè)表面的溫差為1度 (K, ° C),在1小時內(nèi)，通過1平方米面積傳遞的熱量，單位為瓦/米度(W/mK, 此處的K可用。C代替)。導(dǎo)熱系數(shù)與材料的組成結(jié)構(gòu)、密度、含水率、溫度等因素有關(guān)。非晶體結(jié)構(gòu)、密度較低的材料，導(dǎo)熱系數(shù)較小。材料的含水率、溫度較低時，導(dǎo)熱系數(shù)較小。通常把導(dǎo)熱系數(shù)較低的材料稱為保溫材料(我國國家標(biāo)準(zhǔn)規(guī)定，凡平均溫度 不高于350C時導(dǎo)熱系數(shù)不大于0.12W/(mK)的材料稱為保溫材料)，而把導(dǎo)熱 系數(shù)在0.05瓦/米攝氏度以下的材料稱為高效保溫材料?？?厘焦耳/厘英熱單位/英千卡/米時C米秒瓦/米秒尺時Fkcal/

2、(m - h -cal/(cm - s -米 KW/(m - K)J/(cm - s -°CBtu/(ft - h -C )C )T )12.78 X 10 -31.161.16 X 10 -20.6723601418.74.1872420.85982.39 X 10 -3110 -20.57885.980.239100157.81.494.13 X 10 -31.731.73 X 10 -21材料名稱導(dǎo)熱系數(shù)W/mK分類描述A356159A360113A38096ABS0.25-0.9ADC1296Ag銀429Ag 99.9%411Air空氣0.01-0.04Al純鋁237硬鋁17

3、74.5%Cu鑄鋁1634.5%CuAI2O3藍(lán)寶石45AIN150Au金P 315-317:Cu純銅398-401黃銅70-10930%Zn青銅P 26-32:25%Sn康銅20.9溫度30Diam ond鉆石P 2300Fe鐵80FR4:0.2 :GaAs46GaP77LTCC 2 HDPE0.33H2SO4( 5-25)0.47-0.590%硫 酸:0.354:HTC I450-600HTC II350-450ICE冰:2.22 1Kovar17.3LDPE0.33Mg鎂1480.6%MuNi純鎳P90PA0.25Pb純鉛35PC:0.2 :PMMA0.14-0.2PP0.21-0.26

4、0.25PP+2%玻纖PVC0.14軟質(zhì)PVC0.17硬質(zhì)PS0.08PU0.25Rubber橡膠0.19-0.26Si150Silica純硅膠0.35中密度硅膠0.17低密度硅膠0.12SiO27.6玻璃0.12 :玻璃鋼0.4普通冕玻璃1溫度20石英玻璃1.46溫度4燧石玻璃0.795溫度32重燧石玻璃0.78溫度12.5精制玻璃0.9溫度12SiC490Sn純錫64-67Snow新下的雪0.1 :填實了的雪0.21STC I750STC II600-700:Steel36-540.5%C殷鋼11溫度30Ti純鈦14.63:Water水0.5-0.7重水0.559水蒸汽0.0235-0.0

5、25 :重水蒸汽0.072Wood木材0.14-0.17橫向木材0.38縱向落葉松木0.13溫度0普通松木0.08-0.11溫度45楊木0.1溫度100白樺木0.15溫度30橡木0.17:溫度20雪松0.095溫度0柏木0.1溫度20Zi112ZL102168ZL1041551070型鋁合金2261050型鋁合金209AL60636063型鋁合金201AL60616061型鋁合金155-160AL7075130泡沫塑料0.045環(huán)氧樹脂0.2-2.2普通粘土磚0.7-0.8耐火磚1.06水泥沙0.9 1.28拌石水泥P1.5:瓷磚1.99石棉0.15-0.37溫度0玄武巖P 2.18花崗巖2.

6、6 3.6石蠟0.12蠟P 0.04石蠟油0.123石油0.14瀝青P0.699:瀝青0.7紙板0.06 0.14鑄鐵42 90不銹鋼17鑄鋁138 147導(dǎo)熱硅0.8-3亞麻布0.09溫度50木屑0.05溫度50海砂:0.031溫度20研碎軟木0.04溫度20壓縮軟木0.07溫度20聚苯乙烯0.08溫度100硫化橡膠0.22-0.29溫度50鎳鋁錳合金32.7溫度0鎳鉻合金:12.3-171溫度30紙0.06-0.13溫度12紙板0.14皮棉:0.03:溫度4.1皮革0.18-0.19礦渣棉0.05-0.14溫度0氈0.04瓷1.05汽油0.11溫度12變壓器油:0.128柴油機(jī)燃油0.12

7、“天然氣”油0.14溫度12甘油0.276溫度0煤油0.12溫度100蓖麻油0.18溫度500橄欖油0.165溫度0凡士林0.184溫度12、.一【、t r r 玄武巖2.177花崗石2.68 3.35丙酮0.177苯0.139已烷0.152溫度0二氯乙烷0.147醋酸18硝基苯0.159二硫化碳0.144甲醇0.207四氯化碳0.106三氯甲烷0.121氨氣0.022硫化氫0.013聚苯板0.04膠合板0.125溫度0木工板0.1-0.2纖維素0.46溫度0絲0.04-0.05溫度20爐渣0.84溫度50硬質(zhì)膠0.18溫度50常用材料的導(dǎo)熱系數(shù)表用途材料名稱密度（kg/m 3）導(dǎo)熱系數(shù)（W/

8、m.K）窗框銅8900380硅合金鋁2800160黃銅8400120鐵780050不銹鋼790017PVC13900.17硬木7000.18建筑構(gòu)件軟木5000.13UP樹脂玻璃鋼19000.4玻璃碳酸鈣玻璃25001.0有機(jī)玻璃PMMA11800.18聚碳酸脂12000.2熱斷橋聚冼氨尼龍11500.256.6%尼龍,25%玻璃纖維14500.3高密度聚乙烯HD9800.5低密度聚乙烯LD9200.33固體聚丙烯9100.2225%玻纖聚丙烯12000.25聚亞氨脂樹脂PU12000.25剛性PVC13900.17防雨氯丁橡膠PCP12400.23密封條三元乙丙EPDM11500.25純硅膠

9、12000.35柔性PVC12000.14聚脂馬海毛0.14柔性橡膠泡末60-800.05密封劑剛性聚氨脂PU12000.25固體/熱融異丁烯12000.24聚硫膠17000.4純硅膠12000.35聚異丁烯9300.2聚脂樹脂14000.19硅膠干燥劑7200.13分子篩650-7500.1低密度硅膠泡末7500.12中密度硅膠泡末8200.17表2窗體材料導(dǎo)熱系數(shù)窗框材料鋼材鋁合金PVC PA松木導(dǎo)熱系數(shù) 58.2 203 0.16 0.23 0.17表3不同玻璃的傳熱系數(shù)玻璃類型玻璃結(jié)構(gòu)(m)傳熱系數(shù)K-w/(m2-k)單層玻璃6.2雙層中空玻璃5 X 9X 5 3.265X 12X 5

10、 3.11一層中空玻璃5 X 9X 5 X 9 X 5 2.22J- 5 X 12X 5X 12X 5 2.08Lhw-E 中空玻璃 5 X 12X 5 1.71常用材料導(dǎo)熱系數(shù)-深圳智通電子有限公司提供MetalMaterialConductivityW/m-CDensity kg/m 3Aluminum, 2024, Temper-T31212.80E+03Aluminum, 2024, Temper-T3511432.80E+03Aluminum, 2024, Temper-T41212.80E+03Aluminum, 5052, Temper-H321382.68E+03Aluminu

11、m, 5052, Temper-O1442.69E+03Aluminum, 6061, Temper-O1802.71E+03Aluminum, 6061, Temper-T41542.71E+03Aluminum, 6061, Temper-T61672.71E+03Aluminum, 7075, Temper-O1302.80E+03Aluminum, 7075, Temper-T61302.80E+03Aluminum, A356, Temper-T61282.76E+03Aluminum, Al-Cu, Duralumin, 95%Al-5%Cu1642.79E+03Aluminum,

12、 Al-Mg-Si, 97%Al-1%Mg-1%Si-1%Mn1772.71E+03Aluminum, Al-Si, Alusil, 80%Al-20%Si1612.63E+03Aluminum, Al-Si, Silumim, 86.5%Al-1%Cu1372.66E+03Aluminum, Pure2202.71E+03Beryllium, Pure1751.85E+03Brass, Red, 85%Cu-15%Zn1518.80E+03Brass, Yellow, 65%Cu-35%Zn1198.80E+03Copper, Alloy, 110003888.93E+03Copper, A

13、luminum bronze, 95%Cu-5%Al838.67E+03Copper, Brass, 70%Cu-30%Zn1118.52E+03Copper, Bronze, 75%Cu-25%Sn268.67E+03Copper, Constantan, 60%Cu-40%Ni22.78.92E+03Copper, Drawn Wire2878.80E+03Copper, German silver, 62%Cu-15%Ni-22%Zn24.98.62E+03Copper, Pure3868.95E+03Copper, Red brass, 85%Cu-9%Sn-6%Zn618.71E+0

14、3Gold, Pure3181.89E+04Invar, 64%Fe-35%Ni13.88.13E+03Iron, Cast557.92E+03Iron, Pure71.87.90E+03Iron, Wrought, 0.5%C597.85E+03Kovar, 54%Fe-29%Ni-17%Co16.38.36E+03Lead, Pure351.14E+04Magnesium, Mg-Al, Electrolytic, 8%Al-2%Zn661.81E+03Magnesium, Pure1711.75E+03Molybdenum1301.02E+04Nichrome, 80%Ni-20%Cr1

15、28.40E+03Nickel, Ni-Cr, 80%Ni-20%Cr12.68.31E+03Nickel, Ni-Cr, 90%Ni-10%Cr178.67E+03Nicke- Pure si-ver- Pure so-der- Hard- 80&AU20%sn so-der- Hard- 88&AU12%Ge so-der- Hard- 95&AU3&sj so_der- sop60&s?40%pb so_der- sop63&snw7%pb so_der- sop92.5&pb25&Agu1&_n so-der- s

16、op95&P75&SFI sfee- carbon- 0.5&C sfee- carbon- 1 .o&c SfeeL carbop1.5&C sfee- chrome- cro& sfee- chrome- Cr1& sfee- chrome- Cr20& sfee- chrome- Cr5& sfee- chromeNickeL 15&cr10&Ni sfee- chromeNickeL 18&cr00&Ni sfee- chromeNickeL 20&cr15&Ni s

17、fee- chromeNickeL 25&cr20&Ni sfee-nvar- 36&Ni9941857889450513932W54433673612240 亠916W15112.810.78O1E+031.05E+041.50E+041.50E+041.57E+049.29E+03 9.25E+03 1.20E+04 L10E+04 7.83E+03 7.80E+03 7.75E+03 7O0E+03 7.87E+03 7.69E+03 7.83E+03 7.87E+03 7.82E+03 7.83E+03 7.87E+03 o°14E+03Sfee Sf

18、ee Sfee Sfee Sfee Sfee Sfee Sfee Sfee Sfee SfeeNicke_- NO&Nicke_- Ni20&Nicke_- Ni40&Nicke_- Ni80&SAE 1010SAE 1010- Sheef ss-in-ess- 316 Tungsfen- W0& Tungsfen- W1& Tungsfen- W10& Tungsfen- W5&Tin- CasL HammeredTin- Pure Tis-niumTungsfen zinc- PureNonMefa-MaCDria-73 亠9

19、 亠0355963込15261122conduaMfy7O0E+03 7O3E+03 8.17E+03 8.62E+03 7.83E+03 7.83E+03 8.03E+03 7O0E+03 7O1E+03 8.31 E+03 8.07E+03 7.35E+03 7.30E+03 4.51 E+03 1O4E+04 N14E+03Densify實用標(biāo)準(zhǔn)W/m-Ckg/m3ABS-Plastic0.251.01E+03Acetals0.31.42E+03Acrylic0.061.19E+03Alkyds0.852.00E+03Alumina, 96%213.80E+03Alumina, Pure

20、373.90E+03Asbestos, Asbestos-sheets0.166No DataAsbestos, Cement2.08No DataAsbestos, Cement-boards0.74No DataAsbestos, Corregated, 4plies/in0.087No DataAsbestos, Felt, 20 lam/in0.078No DataAsbestos, Felt, 40 lam/in0.057No DataAsbestos, Loosely-packed0.154520Asphalt0.75No DataBakelite0.19No DataBalsam

21、 wool 2.2lb/ft 30.0435Beryllia, 99.5%197.3No DataBrick, Building brick0.691.60E+03Brick, Carborundum brick18.5No DataBrick, Chrome brick2.323.00E+03Brick, Diatomaceous earth0.24No DataBrick, Face brick1.322.00E+03Brick, Fireclay1.042.00E+03Brick, Magnesite3.81No DataCarbon6.92No DataCardboard, Celot

22、ex0.048No DataCardboard, Corrugated0.064No DataCement, Mortar1.16No DataCement, Portland0.291.50E+03Concrete, Cinder0.76No DataConcrete, Stone 1-2-4 mix1.372.10E+03Cork, Corkboard,10lb/ft 30.043160Cork, Ground0.043150Cork, Regranulated0.04580Diamond, Film7003.50E+03Diamond, Type IIA2.00E+03No DataDi

23、amond, Type IIB1.30E+03No DataDiatomaceous earth0.061320E-Glass Fiber0.892.54E+03Epoxy, High Fill2.163No DataEpoxy, No Fill0.207No DataFelt, Hair0.036265Felt, Wool0.052330實用標(biāo)準(zhǔn)Fiber insulating board0.048240FR4 Epoxy Glass, 1oz Copper9.11No DataFR4 Epoxy Glass, 2 oz Copper17.71No DataFR4 Epoxy Glass,

24、4oz Copper35.15No DataFR4 Epoxy Glass, no Copper0.2941.90E+03Glass, Borosilicate1.092.20E+03Glass, Pyrex1.022.23E+03Glass, Window0.782.70E+03Glass, Wool, 1.5lb/ft 30.03824Insulex, dry0.064No DataKapok0.035No DataKapton0.156No DataMagnesia, 85%0.067270Mica0.71No DataMylar0.19No DataNylon0.2421.10E+03

25、Phenolic, Paper based0.277No DataPhenolic, Plain0.519No DataPlaster, Gypsum0.481.44E+03Plaster, Metal lath0.47No DataPlaster, Wood lath0.28No DataPlexiglass0.19No DataPolycarbonate0.191.20E+03Polyethylene, High density0.5950Polyethylene, Low density0.35920Polyethylene, Medium density0.4930Polystyrene0.106No DataPolyvinyl chlorid