Modyfication of the Rigid Polyurethane-Polyisocyanurate Foams

Table 6

Basic utility properties of rigid PUR-PIR foams with addition of glycolysis products (nos. as in Table 4).

No. of foam	Apparent density kg/m^3	Compressive strength kPa	Brittleness %	Softening point °C	Oxygen index %	Retention %	Change of volume %	Loss of mass %
0	36.9	221.7	41.1	230.0	22.1	76.6	0.0	0.0
1	35.5	222.1	40.3	229.8	22.1	76.6	0.0	0.0
2	35.4	222.5	38.2	229.3	22.5	77.8	0.0	0.0
3	35.9	223.1	36.7	229.1	22.7	77.9	0.0	0.0
4	35.4	223.3	34.9	228.9	22.9	78.1	0.0	0.0
5	36.3	224.7	38.2	227.3	22.4	77.9	0.0	0.0
6	37.0	227.3	37.3	227.1	22.6	78.7	0.0	0.0
7	36.7	229.1	36.4	226.7	227	79.9	0.0	0.0
8	36.8	230.0	36.0	226.1	22.9	80.0	0.0	0.3
9	36.9	225.3	36.3	225.4	22.6	78.3	0.0	0.0
10	37.1	227.1	35.1	224.9	22.8	79.5	0.0	0.0
11	37.0	228.2	34.7	223.7	23.0	80.3	0.0	0.0
12	36.9	228.9	34.1	223.3	23.0	81.3	0.0	0.0
13	37.5	226.3	33.7	223.5	22.8	79.4	0.0	0.0
14	37.7	227.7	32.5	221.1	23.0	80.2	0.0	0.0
15	37.8	228.5	31.3	219.7	23.1	81.7	0.0	0.2
16	37.9	229.3	30.1	218.9	23.1	81.6	0.0	0.0
17	38.9	231.2	30.1	220.7	22.8	79.6	0.0	0.0
18	36.6	236.3	28.3	218.6	23.0	80.9	0.0	0.3
19	38.7	239.7	26.4	217.7	23.2	81.7	0.0	0.1
20	38.8	240.2	23.0	216.4	23.5	82.9	0.0	0.0
21	37.7	233.3	27.1	218.9	22.9	80.0	−0.3	0.0
22	37.8	235.7	25.9	217.1	23.1	81.4	−0.5	0.3
23	37.9	237.8	23.0	215.9	23.6	82.7	−0.4	0.1
24	38.3	241.4	22.1	214.1	23.9	83.6	−0.6	0.1
25	38.7	240.1	25.1	227.7	23.7	82.9	0.0	0.0
26	38.9	244.7	23.4	227.1	23.9	83.9	0.0	0.0
27	38.9	246.4	21.1	224.7	24.5	84.8	0.0	0.0
28	39.4	249.9	18.4	224.1	25.1	86.4	0.0	0.0
29	37.7	237.4	27.1	218.7	22.7	79.9	0.0	0.2
30	37.9	238.9	25.4	216.5	22.9	80.3	0.7	0.6
31	37.9	242.7	23.2	213.9	23.0	80.8	0.9	0.7
32	38.1	243.8	20.7	211.9	23.9	81.7	0.3	0.7
33	37.1	234.4	30.1	215.5	23.0	81.0	0.0	0.0
34	37.3	236.1	28.4	213.7	23.6	82.6	0.0	0.0
35	37.1	237.9	26.2	211.3	23.9	83.4	0.7	0.6
36	37.7	238.6	23.3	209.7	24.7	84.7	0.9	1.1