Rice Husk Particle Board
Particle Board From Rice Husk
What is RICE HUSK?
Rice husk is an agricultural residue. The outer layer of the paddy grain is the rice husk. It is also called rice hull. It is separated from the brown rice in rice mills. Rice husk is produced in the first step in the milling process when the husk is removed form the grain Around 20% of the paddy weight is husk. There are some uses for rice husk, but it is still considered a waste product and therefore either burned it or dumped on wasteland.
RICE HUSK PARTICLE BOARD
The process of manufacturing rice husk Particle Board is similar to that of bagasse particle board. Particle board is manufactured by mixing wood particle or bagasse with suitable binder resin like urea formaldehyde or phenol formaldehyde(in case of water proof Particle Board) But in rice husk particle board urea formaldehyde resin is useless due to high silica content in rice hull. So there is a specially design strong bonding resin used in manufacturing rice husk particle board.
Once the resin has been mixed with the rice husk, the liquid mixture is made into a sheet. A weighing device notes the weight.The sheets formed are then hot-compressed under pressures between two and three mega pascals and temperatures between 140 °C and 220 °C for 5 to 10 minutes according to thickness. This process sets and hardens the glue.The boards are then cooled, trimmed and sanded. They can then be sold as raw board or surface improved through the addition of a wood veneer or laminate surface.
Rice Husk Particle Board Applications/Uses
Rice husk particle boards can manufactured in various densities, thickness and grades to suit wide range of applications. Some of them are:-
(1) Door Paneling (2) Furniture (3) Table Top
(4) False Ceiling (5) Insulation (6) Partition.
(7) Photo Lamination (8) Speaker Box (9)Flooring
(10) Low Budget Home.
Rice Husk Particle Board Properties.
There are some properties of rice husk particle board below.
(1) Fire resistance (2) Water resistance
(3) Termite resistance (4) Decay resistance
(5)Borer resistance
And many other technical properties when compare to other material particle boards.
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