HCFC-141b --- HFCs : (Tel: 03-5732651; Fax: 03-5725524) E-Mail: Lucky_Lee@itri.org.tw 92 11 5
2 HFC-365mfc/227ea PU HFC-365mfc/227ea
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HFC HC CFC HFC&HC CFC CFC HCFC,HFC&HC CFC ODP GWP HCFC ODP GWP HFC GWP HC,CO 2? 4
5 PO,PS 2002 52
6 HFCs HFC & PFC Task Force of the Technology & Economic Assessment Panel UNEP, Oct. 1999 HFC use is also technically and economically necessary for the phaseout of HCFCs in both developed and developing countries in applications where other alternatives are not yet available. HFCs are expected to replace no more than half of HCFCs demand for insulating foams with non-fluorocarbon substances replacing the other half over the next five years.
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8 HCFC-141 b HFC-134 a HFC-245 fa HFC-365 mfc 32-26.5 15.2 40 49 ( )
9 PU HCFC-141b HFC-365mfc HFC-245fa HCFC-141b HCFC-22 HCFC-22/HCFC-142b HFC-134a HFC-365mfc HFC-245fa HCFC-141b HFC-365mfc HFC-245fa HCFC-141b HFC-365mfc HFC-245fa HCFC-22 HCFC-22/HCFC-142b HCFC-141b HFC-365mfc HFC-245fa
10 PU HCFC-141b HCFC-141b HCFC-22 HCFC-141b HFC-365mfc HFC-134a HFC-245fa
11 PS PO HCFC-22 HFC-152a HFC-152a HFC-134a HCFC-22 HCFC-142b HFC-134a HFC-152a HCFC-22 HCFC-142b HFC-152a
12 ( ) Integral Skin Foams Employing HFC-245fa as Blowing Agent :US2002-0128337 :Honeywell 2001 HFC-245fa polyisocynate, polyol,, chain extainder, surfactant, catalyst, filler, pigment, antioxidant, stabilizer, HFC- 245fa HFC-245fa polyol,, chain extainder, surfactant, catalyst, filler, pigment, antioxidant, stabilizer 0.5~15 wt% Index=100 CFC-11 HFC-245fa Free rise 3.5 8.5 3.5 density(pcf) Molded 7.0 20.0 7.0 density(pcf) T.S.(psi) 838 250 895 Elogn.% 95 190 110 Tear(psi) 102 66 131
13 ( ) Integral Skin Foams Employing HFC-245fa as Blowing Agent :US2002-0128337 :Honeywell 2001 HFC-245fa polyisocynate, polyol,, chain extainder, surfactant, catalyst, filler, pigment, antioxidant, stabilizer, HFC- 245fa HFC-245fa polyol,, chain extainder, surfactant, catalyst, filler, pigment, antioxidant, stabilizer 0.5~15 wt% Aging Study Initial 21 Days HFC-245fa Polyether Polyol System Polyol wt. g 230 230 Isocyanate wt. g 118 118 Cream time sec 15 16 Rise time sec 35 35 Gel time sec 46 57 Tack free time sec 70 75 Density pcf 18.6 19.8
14 PU Tack-free Time Gel Time Rise Time Cream Time
( ) Process for Making Polyurethane Integral Skin Foams EP1219674-2002 :Huntsman 2000 organic polyisocyanate composition polyfunctional isocyanate-reactive composition HFC PU polyfunctional isocyanate-reactive 2-15% 50%-99% HFC 365mfc, 1-50% HFC ( HFC 245faHFC134a/HFC227ea ) HFC-365mfc HCFC-141b HFC-134a /227ea Cream time sec 22 11 16 20 Gel time sec 45 30 35 57 End of rise sec 55 41 58 62 Free density 68 196 190 83 kg/m3 Molded density 345 365 350 345 kg/m3 Hardness Shore 73 55 60 77 A TS Kpa 1670 1850 Elongation % 95 100 15
16 The Environmental Contribution of Polyurethane Thermal Insulation Products (ECO Profile) PUR LCA PUR : Relative contribution for 1 m2 PUR foam board(%) Production of Al facings 20 Production of PUR raw materials 66 Delivery of PUR raw materials 1 Foaming 4 Packaging 6 Final transport of PUR foam 3 board (Polyol MDI )
The Environmental Contribution of Polyurethane. Thermal Insulation Products (ECO Profile) PUR LCA 1/4 17
18 HCFC-141b HFC-245fa HFC-365mfc /227ea (HC) 65 /330 /280 / CFC-11 HFC-245fa
HC 19 2,640 2,000 5,000 (ODP kg) 1 HCFC-141b ( ) HFCs ( ) HC ( ) 1,440,000 1,090,909 2,727,272 7,200,000 5,454,545 13,636,363 720,000 545,454 1,363,636 6,480,000 4,909,091 12,272,727 ( )HC-HFCs HC ( ) 10,000,000 10,000,000 50,000,000 ( ) 1.54 2.03 4.07
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21 HFC-365mfc/227ea ( ) HCFC-141b HFC-365mfc/227ea (kg/m 3 ) Overall Skin Core Overall Skin Core Overall Skin Core 485 745 460 225 505 187 215 458 170 (A) 77 60 70 Index 100 105 105 (kg/cm 2 ) 86.4 27.0 310.0 35.0 350.0 37.0 (%) 280 180 310 95 330 100 (N/mm) 17 6 32 7 35 7
22 HFC-365mfc/227ea 50-200g/sec 27 45 1.5
23 HFC-365mfc/227ea 10-15% 5-8%
24 HFC-365mfc/227ea PU HCFC-141b HFC-365mfc/227ea CT(sec) 10 10 GT(sec) 73 71 TFT(sec) 95 92 RT(sec) 105 104 Df(kg/m 3 ) 23.4 23.7
HFC-365mfc/227ea 25
26 HFC-365mfc/227ea PU 1.21 1.24 1.32 25 45 10min 40*40*5cm 3 HCFC-141b HCFC-141b HFC-365mfc/ 227ea HFC-365mfc/ 227ea g 263.5 271.6 263.9 271.9 Do 32.1 33.2 32.6 33.5 kg/ cm 3 Dc 29.6 30.9 31.2 32.0 Do-Dc 2.5 2.3 1.4 1.5 1.09 kgf/cm 2 Kf,kcal/mhr 0.0156 0.0157 0.0166 0.0167 L 0-0.02 0 0 %, W -30-0.18-0.10-0.07 0 *48hr T -0.27-0.06-0.04 0
HFC-365mfc/227ea 27
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SEM HITACHI S-4200 29
30 SEM HCFC-141b HFC-365mfc/227ea
31 PU SEM HCFC-141b HFC-365mfc/227ea HFC-365mfc/227ea
32 HFCs HFCs 1. HFCs 2. HCs