MDF Vs.Eco Materials 1 MDF (Medium Density Fibreboard) by Tristan Titeux
http://www.CustomCarpentry.co.uk Tristan Titeux introduces MDF (Medium Density Fibreboard).
This is the first video of many discussing available, new and not yet available eco materials for use in the construction industry and specially for use in eco bespoke fitted furniture.
Last November 2010 I decided to follow my heart and bring out an Eco option for my customers. This is something that has always been at the heart of what I do and felt that I should follow my inner beliefs that we must be more sustainable and faster than we are currently going.
So I decided to first look at the material we and the industry uses mostly along with chipboard. Similar things just different size wood particles. Mdf is much finer, denser and stronger than chipboard. But MDF contains more glue as there is more of a surface area.
Mdf uses between 10 and 15% of glue in the boards, chipboard uses 6-8% glue.
MDI based mdf contains even less glue at between 3 and 4% MDI glue, which I will talk about in the next video.
The wood comes from wood mill residue, that means when they cut logs into square timber, the pieces on the edges of the trunk are called residue and they grind this up into minute fibers that are used to make the MDF.
Also it is made of thinnings which are trees that are plucked out to make way for the bigger, straighter, healthier looking trees to go on and grow to full maturity to be used for making planks of wood for the construction industry.
This wood comes from FSC certified forests which mean they have been managed in a responsible way, replanted every year with the same or more. Not all MDF is FSC certified so check this with your supplier.
MDF has the potential to be one of the most amazing materials because for one it uses fast growing softwood, it uses waste wood and trees no good for anything other building material apart from paper and burning.
Any other fiberous material could be mixed in with it, you could mix old recycled wood from building sites, wood crates and anything that normally would go to landfill.
Then if could be bonded together using a totally natural glue. My aim is to promote the use of such glues, boards and natural materials so that when the boards have gone through their logical life cycle which is mdf board, fitted furniture, restoration of fitted furniture, reuse, recycle into more boards and as a last resort burn directly in your home to heat your family and the aim is for it to be no more harmful than a piece of wood chopped from your garden tree.
That is the pinnacle of sustainability for this board. This is presuming that all the steps to grow and produce the board are also sustainable, such as a factory running on eco energy such as from a company called Good Energy, to the way they recycled and reuse their waste in the factory, to how it is built, how it saves and uses energy, how it contributes to it's local environment and population etc etc. This is a huge subject in itself but an important one which I am happy to talk about.
I will make another video soon about a simple example of sustainability using my chickens as an example, so look out for that, it is great.
If you would like any help, have any more questions about MDF this is in no way an exhaustive article on MDF as there is lots more to it.
Thank you for your time reading, I appreciate it.
Tristan Titeux, 14 August 2011
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Wondering what the difference is.Hemp Medium Density Fiberboard
In the early 1990's, C & S Specialty Builder's Supply (namely Bill Conde, Dave Seber, Barry Davis, and Tim Pate) in Harrisburg, Oregon, imported regulated bales of hemp and began working on a medium density fiberboard (MDF). The evolution of hemp MDF as a viable building supply option began when Bill Conde of C & S took their hemp fiber research and ideas to Paul Maulberg, the head of Washington State University's Wood Engineering Laboratory.
Conde explains in a 2005 Mycotopia blog, "We asked if [Maulberg] would consider trying some hemp fiber to make some experimental hemp MDF, and his reply was, 'You bet, hemp is the King Cong of fiber. I would love a chance to work with some."
Excitedly, Conde and team began the process working with Maulberg on creation and testing of the hemp MDF. It was soon discovered how strong the hemp fiber truly was, as the full-length hemp fibers jammed both of the processing machines and brought things to a standstill. The process for breaking down the fibers was redesigned and restarted with ultimate success.
Explaining the process in his blog, Conde says, "The shortened fiber was worked through their two mills and was made ready to be pressed into MDF." After being fluffed hemp fibers are dropped into a spinning drum where glue is sprayed to mix with the fibers. Glue and fiber are then placed into a hot press under high pressure. According to Conde, within two attempts they had exceeded all world standards for other types of MDF that used tree fiber.
"It proved to be two and one half times stronger than wood MDF composites, plus hemp composite boards have three times more elasticity than wood composite boards," said Lynn and Judy Osburn of the North Coast Xpress in 1994, regarding this subject. The hardened hemp boards were considered stronger than steel, with superior water, rot, insect and fire resistant properties.
"The industrial hemp entrepreneurs at C & S Specialty Builders Supply have concluded that the best alternative to wood in construction products is hemp," said Lynn and Judy Osburn. "They believe hemp has the potential to be vastly superior to wood for everything from lumber to plywood to particle board or any other composite construction material."
"In fact, the hemp fiberboard met or surpassed every standard industry test by Washington State University Wood Materials and Engineering Laboratory (http://www.wmel.wsu.edu/ ) in Pullman," stated Tim Pate, when discussing the testing with Hemp News. The WSU laboratory has a long and illustrious history in wood composite materials, design and construction. Since its founding in 1949, the scope of the research, outreach and education programs of the laboratory has expanded beyond wood materials to include other natural fibers, polymers, inorganic cements, masonry and steel, according to the WSU website.
The Oregon Cannabis Tax Act of 2012 feels it is time to take this collaborative work one step further and develop hemp within the industrial community to help stimulate Oregon's struggling economy. Over time, hemp will add thousands of jobs within the building industry and reduce the deforestation currently taking place across the Pacific Northwest.
The OCTA 2012 will allow farmers to grow cannabis hemp for fuel, fiber and food. OCTA 2012 will also raise an estimated $140 million a year by taxing commercial cannabis sales to adults 21 years of age and older, and save an estimated $61.5 million in law enforcement, corrections and judicial attention so they can refocus on violent crimes and theft.
Ninety percent of the proceeds from OCTA will go into the state general fund, seven percent for drug treatment programs, one percent each for drug education in public schools, and two new state commissions to promote hemp biofuel, fiber and food.
References:
Composite Materials & Engineering Center - Wood Materials & Engineering Laboratory http://www.wmel.wsu.edu/
Hemp Medium Density Fiberboard http://forums.mycotopia.net/lifestyles/22439-hemp-medium-...
HEMP PLYWOOD Becomes a Reality http://www.ratical.org/renewables/plywood.html
Learn more: http://www.cannabistaxact.org
Video Footage:
Oregon Cannabis Tax Act 2012 News Conference, Portland, Oregon
March 28, 2011
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