 |
 |
|
 |
 |
Physical and chemical characteristics of kenaf core and hemp core |
|
|
|
|
|
| Physical and common characteristics: |
| Commercial form |
|
chipboard |
|
| Anatomical origin |
|
central part of stem, woody-phloem sheaths |
| Morphological characteristics |
|
flat, elongated particles of approximately 12 to 22 mm |
|
|
|
|
|
| Chemical characteristics |
KENAF CORE |
HEMP CORE |
| chemical composition |
|
|
|
|
water |
|
7% - 10% |
10% |
|
cellulose |
|
51% - 52% |
45% - 52% |
|
hemicellulose |
|
- |
15% - 20% |
|
lignin |
|
17% |
20% - 30% |
|
ash |
|
2,9% - 4,2% |
4% - 5% |
| major elements |
|
|
|
|
nitrogen (N) |
|
0,24% |
0,4% - 1% |
|
phosphorus (P) |
|
0,06% |
0,2% - 0,5% (P2O5) |
|
potassium (K) |
|
0,60% |
0,96% - 1,50% (K2O) |
|
sodium (Na) |
|
0,23% |
0,09% |
|
calcium (Ca) |
|
0,18% |
0,89% - 1,4% (CaO) |
|
magnesium (Mg) |
|
0,17% |
0,06% - 0,02% (MgO) |
|
sulphur (S) |
|
0,10% |
0,16% |
| minor elements |
|
ppm |
ppm |
|
manganese (Mn) |
|
5 |
- |
|
copper (Cu) |
|
7 |
0,6 |
|
zinc (Zn) |
|
14 |
- |
|
boron (Bo) |
|
- |
21 |
| Chemical properties |
|
|
| flammability |
|
flammable |
flammable |
| higher heat capacity |
|
4.000 kca/kg |
4.055 kcal/kg |
| lower heat capacity |
|
3.675 kcal/kg |
3.715 kcal/kg |
|
|
|
|
|
| Source: Muchow R.C. "The Growth and Culture of Kenaf (Hibiscus cannabinus L.) in Tropical Australia" - Proceeding of the Kenaf Conference: "Kenaf as a Potential Source of puIp in Australia", Brisbane, Australia 1981. Brochure and illustrative material "Aubiose" - France. Experimental Station for Fuels - S. Donato Milanese, Italy. |
|
|
|
|
|
|
 |
Kenaf and Hemp? Yes, please! 
Company
K.E.F.I. S.p.A.