KS M ISO 4638-2008 Polymeric materials cellular flexible－Determination of air flow permeability《泡沫柔性聚合材料 气流透过率的测定》.pdf

《KS M ISO 4638-2008 Polymeric materials cellular flexible－Determination of air flow permeability《泡沫柔性聚合材料 气流透过率的测定》.pdf》由会员分享，可在线阅读，更多相关《KS M ISO 4638-2008 Polymeric materials cellular flexible－Determination of air flow permeability《泡沫柔性聚合材料 气流透过率的测定》.pdf（16页珍藏版）》请在麦多课文档分享上搜索。

1、 KSKSKSKS KSKSKSK KSKSKS KSKSK KSKS KSK KS KS M ISO 4638 KS M ISO 4638:2008 2008 9 9 http:/www.kats.go.krKS M ISO 4638:2008 : ( ) ( ) () () ( ) : (http:/www.standard.go.kr) ： ： 2003 12 31 ： 2008 9 9 2008-0511 ： ： ( 025097301) (http:/www.kats.go.kr). 10 5 , . KS M ISO 4638:2008 Polymeric materials, c

2、ellular flexible Determination of air flow permeability 1984 1 ISO 4638, Polymeric materials, cellular flexible Determination of air flow permeability , . . . . . a) b) ( ) (laminar) (turbulent) . 1 . . KS M ISO 7231 . . 2 . . KS M ISO 471, , KS M ISO 4638:2008 2 KS M ISO 845, 3 . . 4 4.1 K ( 2 ) (

3、1 ) Darcy ( 1 ) . pKAquV= u ： (m/s) qV ： (m3/s) A ： (m2) K ： (m2) p ： (Pa) ： (Pa s) ： (m) 1 , . 2 , . nvKuRe = Re： (Reynolds) v ： (m2/s) ： . u (9.1 ) K cm/s . 4.2 Rs . . KR=sPa s m 2 . 4.3 R KS M ISO 4638:2008 3 ( .), . . R Rs R Darcy . sRpAquV= Rs R/ R . Pa s m 1 . 5 (cell) . 2 . . 5.1 . 3 . 50 120

4、 mm ( 20 110 cm2). , 45 105 mm . 100 mm . , . 100 mm . 50 mm . 70 % . (tapping) . 8.6 25 100 cm2( 56.5 113 mm, 50 100 mm ) . u m/s 400 qV 100 qV . 9. 18.5 cm2(KS M ISO 4638:2008 4 48.5 mm, 1 45 mm ) , 100 mm . pqKV= 5.2 5.2.1 (source) . ( ) . , . 5.2.2 m3/s uA qV . A 5.1 50 mm s 1 . 50 120 mm 10 2m

5、s 1 , 17 dm3 min 1 . 2.5 % , 1 % . 5.3 . 5.2.2 . 2 % . , . 20 100 % . 250 mm . 5.4 1 Pa . 0.5 Pa . 5.5 1 % . KS M ISO 4638:2008 5 3 . 70 % . . , 1 % . 6 6.1 . 6.2 6.2.1 , . 1 mm . mm Dc D D (Dc 2)1 , mm L Lc L (Lc 2)1 6.2.2 (8.8 ) (5.1 ) . 5 . 50 100 mm . 6.3 6.3.1 , ( ). . 6.3.2 , (band knife) (6.2

6、.1) . 1 mm . 6.3.3 . KS M ISO 4638:2008 6 6.4 , . 3 4 . 7 KS M ISO 471 . . (wet-knife) , . 8 8.1 6. . 8.2 . 8.3 . 8.4 , . 8.5 . 8.6 . AquV= 8.7 p . 8.8 5 p . . p . , . 9 9.1 . puK= KS M ISO 4638:2008 7 23 1.8510 5Pa s . . upR=s 4.2 . ( Rs1, Rs2, Rs3 ). K u K1K2K3K4K5 KnK u1u2u3u4u5 . K u . , . a) ,

7、. . b) , K u . 2 K . K a . K 4.010 10m2u 0.010 m s 1 a 35 kg m 3 K a . K 2.510 10m2KS M ISO 4638:2008 8 0.005 u 0.02 m s 1 a 40 kg m 3 K Rs . K 0.50 mm s 1 K Rs K . 9.2 K Rs R . qvpAupR= 4.3 9.1 Rs( K) R . 9.3 . 10 9.( , ) ( ) . a) KS M ISO 845 b) c) , d) e) f) g) h) i) KS M ISO 4638:2008 9 1 (Darcy

8、 .) 2 ( ) (m3/s)： qv (m2)： A KS M ISO 4638:2008 10 ： mm 3 ( ) (5.4 ) ： ( ： 70 %) KS M ISO 4638:2008 11 1 MUSKAT, M. (The flow of homogeneous fluids through porous media). J.W. Edwards, Ann Arbor, Michigan, 1946 2 CARMAN, P.C. (Flow of gases through porous media). Butterworths Scientific Publications

9、, London, 1956 Lcoulement des gaz travers les milieux poreux. Institut national des Sciences et techniques nuclaires et Presses Universitaires de France, 1961 3 COLLINS, R.E. (Flow of fluids through porous materials). Reinhold Chemical Engineering Series. Reinhold Publishing Corporation, New York, 1

10、961 4 SCHEIDEGGER, A.E. (The physics of flow through porous media). University of Toronto Press, 1963 5 BEAR, J. (Dynamics of fluids in porous media). American Elsevier Publishing Company Inc., 1972 6 PERRY, R.H. (Chemical Engineers Handbook), 5 , 5 p. 54. McGraw-Hill Book Company, 1973 7 GENT, A.N.

11、, and RUSCH, K.C. (Permeability of open-cell foamed materials). Journal of Cellular Plastics, January 1966： 46 50 135513 7017 (02)60094114 (02)600948878 http:/ Korean Agency for Technology and Standards http:/www.kats.go.kr KS M ISO 4638:2008KSKSKS SKSKS KSKS SKS KS SKS KSKS SKSKS KSKSKS Polymeric materials, cellular flexible Determination of air flow permeability ICS 83.100