Skip to main content
Journal of Wood Science

Official Journal of the Japan Wood Research Society

Table 1 Nomenclature and compositions of rigid PU and W–PU foams containing varying lignin contents (parts by weight)

From: Effect of incorporation of lignin as bio-polyol on the performance of rigid lightweight wood–polyurethane composite foams

Sample

Lignin

DEG

PEG

Catalyst

Surfactant

Blowing agent

Wood particles

pMDI

PU

0

100

10

2

2

1.5

–

240

PU/L5

5

95

10

2

2

1.5

–

232

PU/L10

10

90

10

2

2

1.5

–

224

PU/L15

15

85

10

2

2

1.5

–

216

PU/L20

20

80

10

2

2

1.5

–

208

W–PU

0

100

10

2

2

1.5

150

240

W–PU/L5

5

95

10

2

2

1.5

150

232

W–PU/L10

10

90

10

2

2

1.5

150

224

W–PU/L15

15

85

10

2

2

1.5

150

216

W–PU/L20

20

80

10

2

2

1.5

150

208

Back to article page