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Scaling factors in aging of gas-filled cellular plastics

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Academic year: 2021

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Figure

FIGURE  1.  Agingof polyisocyanuratc board ~ g c d   for  3. 7  and  12  111onths  at  clcv~tcd  tcnipcrd-  ture and later stored in the  laboratory
Figure 2  shows calculations  o f  thermal  rcsistivity  perfornlcd  for a 6 m m   thick  layer of G F C P  placed in a Heat Flow Meter with a hot plate surface of  27OC, cold plate surface o f  23OC, and the following effective diffusion coef-  ficients:
FIGURE  3.  Thcriilal  rcsistivity  o f   a l l   idral  i i i ; ~ t ~ r i . ~ l .   C.IICIII.I~C~  tr011i  tllc  IIIOJCI  1.31  h r   tlircc
FIGURE  4.  Thcrtnal  resistivity  of  .ln i d c ~ l   ~natcrial  In  relation to thc logarithm  o f   scalcd tiliic
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