Bio-based materials from sunflower co-products, a way to generate economical value with low environmental footprint | OCL

Non-Food Uses Of Oil- And Protein- Crops / Usages Non Alimentaires des Oléoprotéagineux

Open Access

Table 7

Characteristics of SPI2 optimal fiberboard, and comparison with values recommended in NF EN 312.

Characteristic	SPI2	Type P1^¹	Type P2^²	Type P3^³	Type P4^⁴	Type P5^⁵	Type P6^⁶	Type P7^⁷
Flexural strength MPa)	37.3 ± 0.7	11.5 min	12.0 min	14.0 min	16.0 min	19.0 min	20.0 min	21.0 min
Elastic modulus (GPa)	4.6 ± 0.2	None	1.95 min	1.95 min	2.20 min	2.45 min	2.90 min	3.10 min
Internal bond strength (MPa)	0.85 ± 0.02	0.31 min	0.45 min	0.50 min	0.45 min	0.45 min	0.65 min	0.75 min
TS (%)	169 ± 16	None	None	20 max	21 max	14 max	16 max	10 max

Panels for general use in dry environments.

Panels for interior fittings (including furniture) used in dry environments.

Non-working panels used in humid environments.

⁴

Load bearing panels for use in dry environments.

⁵

Load bearing panels for use in humid environments.

⁶

Panels used under high stress in dry environments.

⁷

Panels used under high stress in humid environments.

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