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MDF (medium density fiber board) made of bamboo and rice straw
Post 42 of 48
Just saw that this topic is still active and would like to add that MDF boards (made from straw) don't use any kind of glue. The protein in the straw is the "glue". There is very little of it, but still so enough for this purpose. When it is heated up it becomes sticky and bonds together. Or what do you think makes the meat particles in your hamburger stick together? There is no glue either.
04 May 2009 20:01
Post 43 of 48
asnab
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[em19] Very good and nice initiative
08 May 2009 08:37
Post 44 of 48

the  webpage is not found now[em9]

18 May 2009 17:06
Post 45 of 48
Well Grandpa, Thanks a lot for the info, we also use the MDF for our Canvas Panels but that is not made of this
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26 Jun 2009 22:50
Post 46 of 48
carabutz
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Is there a manual method in making MDF(medium density fiberboard)? I really really need to know how it is made by hand.. This is for our research paper.. Can you please tell me how a Fiberboard is made from rice straws? Is the process the same in making Fiberboard from chicken feathers? What are the materials needed?
27 Jun 2009 02:30
Post 47 of 48

I already briefly replied in the Import/Export forum, but here you are bringing up new questions, so I'll address them.

If it is just a sample for a research paper, make a very small sample - perhaps as small as 10x10 centimeters. Remember what I said about "pressure multiplied by surface area". Then you might be able to use a manual press with a very long lever. The pressure has to be so high that it generates heat - the heat necessary to "glue" the fibers together.

For your project, carefully cut the straws by hand to size, avoiding those "knots" you see about every 30 centimeters. Put these straws in the mold, making sure they are uniformly laid. Then 3 or 4 men should pull down the lever and close the mold. A latch on the lever would help leaving it closed for a few minutes. Then the board should be ready.

Regarding the feathers, they might work just the same way, as they also have some protein (the "glue" in this process). In fact, they have more protein than the straw. So I would say, "just try it!" - Oops, almost forgot: due to the fact that feathers have more protein, these boards are also more likely to rot. The best way to avoid that is applying a chemical process that converts the proteins on the surface of the board into substances that don't rot or not as easily.

But please tell us a little more about your project. Is it primarily about getting rid of the straw, providing labor to peasants, both of it, or what? There is a process that converts straw into substances of very high value, and compared to what you get, the cost is very low. Though of course you still need the initial financing. - If you tell us more, we might be able to help you more.

27 Jun 2009 08:45
Post 48 of 48

Come on, Deepali, you are telling me that there is something else, but you don't say what. [em4]

Could you please tell us a little more about your MDF uses and canvas panels? [em3]

27 Jun 2009 08:50
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