We have developed a brand new technology for the production of environmentally friendly (E0), superhard, fibreboard (HDF), with improved strength characteristics. Our technology makes it possible to produce superhard plates with much better physical and mechanical characteristics than have other modern ones (HDF). We use our binder (glue) instead of traditional resins. Our binder (glue) chemically reacts with cellulose cells to form an infinitely long cross-linked polymer structure (polymer based on plant materials), so our plates have better characteristics than other plates made with traditional urea-formaldehyde and other resins.
This property of the binder (glue) is also the basis of thermochemical protection technology of wood, impregnation of poles, beams, lumber. After processing, the wood acquires partially properties of plastic, resistance to aggressive media, water resistance, bioresistance. Our technology offers an advantage over existing impregnations !!! Improvement of a wide range of the wood characteristics at the same time distinguishes it from the known impregnations, which worsen other properties of wood, by improving one of its characteristics.
Our technology allows to obtain plates with the following characteristics:
• microporous structure;
• hydrophobicity;
• strength;
• resistance to environmental influences;
• durability
We obtain glue (binder) on the basis of tall oil by-product of sulphate pulping. Any cellulose-containing raw material can be used as a raw material due to the properties of the glue to enter into a chemical reaction with the cellulose cells, forming an infinitely long polymer structure:
• paper wood;
• unbarked wood;
• forest residues;
• sawdust;
• annual and perennial herbs.
This enables to maximize the use of plant resources and close the wood processing industry to itself.
| Parameter | ECO-STP water resistant 2,87-3,2mm |
GOST-R | EU Standards | |||
|---|---|---|---|---|---|---|
| ST | Т, Т-P, Т-S, T-SP, group А |
HDF 3mm |
MDF water resistant 3-6mm |
OSB 6-10mm |
||
| Density, kg/m3 | 900 – 1 100 | 950 – 1 100 | 800 – 950 | 860 ± 20 | 800 | 660 |
| Bending stretch modulus, МPа | 4 200 | – | – | 2 700 | 2 700 – 3 000 | 2 500 – 3 500 |
| bending strength, MPа (lower limit Тн) |
55 – 58 | 47 | 38 | 23 | 23 – 34 | 20 – 30 |
| swelling within 24 hours, % (upper limit Тв) |
11,3 without embedding edges |
13 | 20 | 50 | 17 | 12 – 25 |
| humidity, % (lower limit Тн) |
3,1 | 3 | 4 | 4 | 4 | 5 |
| Humidity, no more than, % (upper limit Тв) |
3,3 | 10 | 9 | 8 | 12 | |
| Water absorption of the front surface within 24 hours (upper limit Тв) |
6,1 | 7 | 11 | – | – | 15 |
| Tensile Strength perpendicular to plane, МPа ((lower limit Тн) |
1,5 | 0,32 | 0,30 | 0,65 | 0,3 – 0,5 | |
| Formaldehyde emission, mg/100g | absent | <10 | <8 | <10 | ||