10 Bons usos para o cânhamo (maconha)

10 Good uses for hemp
Hemp is used for a wide variety of purposes including the manufacture of cordage of varying tensile strength, durable clothing and nutritional products. The bast fibers can be used in 100% hemp products, but are commonly blended with other organic fibers such as flax, cotton or silk, for apparel and furnishings, most commonly at a 55%/45% hemp/cotton blend. The inner two fibers of hemp are more woody and are more often used in non-woven items and other industrial applications, such as mulch, animal bedding and litter. The oil from the fruits ("seeds") oxidizes (commonly, though inaccurately, called "drying") to become solid on exposure to air, similar to linseed oil, and is sometimes used in the manufacture of oil-based paints, in creams as a moisturizing agent, for cooking, and in plastics. Hemp seeds have been used in bird seed mix as well. A survey in 2003 showed that more than 95% of hemp seed sold in the EU was used in animal and bird feed. Hempseed is also used as a fishing bait.
In modern times hemp is used for industrial purposes including paper, textiles, clothing, biodegradable plastics, construction (as with Hempcrete and insulation), body products, health food and bio-fuel.
Note: Nothing is wasted, the whole plant is used.

1. Food and Drinks
File:Hemp-Non-Dairy-Milk.jpg  File:Shichimitogarashibottle.jpg
Non dairy milk, Hemp substitute milk, and a Japanese hemp seed seasoning, Shichimitogarashi bottle

Hemp seeds can be eaten raw, ground into a meal, sprouted, made into hemp milk (akin to soy milk), prepared as tea, and used in baking. The fresh leaves can also be consumed in salads. Products include cereals, frozen waffles, hemp milk ice cream, hemp tofu, and nut butters. A few companies produce value added hemp seed items that include the seed oils, whole hemp grain (which is sterilized by law in the United States, where they import it from China and Canada), dehulled hemp seed (the whole seed without the mineral rich outer shell), hemp flour, hemp cake (a by-product of pressing the seed for oil) and hemp protein powder.
File:Hemp Beers.jpg
Swiss hemp beer uses blossoms

2. Building material
File:Faux plafond isolation acoustique.jpg
Hemp acoustic ceiling insulation
Concrete-like blocks made with hemp and lime have been used as an insulating material for construction. Such blocks are not strong enough to be used for structural elements; they must be supported by a brick, wood, or steel frame. However hemp fibres are extremely strong and durable and have been shown to be used in replacement of wood for many jobs including creating very durable and breathable homes.
File:Bloc de chanvre ep 15cm.gifFile:Bloc de chanvre isol int.gif
Concrete block made with hemp in France and Hemp interior thermal insulation blocks
The first example of the use of hempcrete was in 1986 in France with the renovation of the Maison de la Turque in Nogent-sur-Seine by the innovator Charles Rasetti. In the UK hemp lime was first used in 2000 for the construction of two test dwellings in Haverhill. Designed by Modece Architects, who pioneered hemp's use in UK construction, the hemp houses were monitored in comparison with other standard dwellings by BRE. Completed in 2009, The Renewable House is one of the most technologically advanced made from hemp-based materials. The first US home made of hemp-based materials was completed in August 2010 in Asheville, North Carolina.
File:Spanplatte.jpg
Hemp fiber board and stem
In 2013, a completely new approach to hemp in construction has been developed by Hemp Architecture, who are researching the potential use of the whole hemp stalk.

3. Fiber
File:Bai woman hemp, shell-ornamented clothes - Yunnan Nationalities Museum - DSC04339.JPGFile:Lisu woman hemp, shell-ornamented dress detail - Yunnan Nationalities Museum - DSC04310.JPG
Hemp dress
Hemp fiber was widely used throughout history. Items ranging from rope, to fabrics, to industrial materials were made from hemp fiber. Hemp was often used to make sail canvas, and the word canvas derives from cannabis.
File:Hemp-sack,asabukuro,japan.JPG
Hemp sack, Hemp-sack,asabukuro (Japan)
Today, a modest hemp fabric industry exists, and hemp fibers can be used in clothing. Pure hemp has a texture similar to linen.

4. Plastic and composite materials
File:Türinnenverkleidung Hanf-PP nova.jpg
Hemp plastic interior of a car door
A mixture of fibreglass, hemp fiber, kenaf, and flax has been used since 2002 to make composite panels for automobiles.
File:B-Säule PP-NF CG.jpg
Hemp plastic column, automobile
The choice of which bast fiber to use is primarily based on cost and availability. Various car makers are beginning to use hemp in their cars, including Audi, BMW, Ford, GM, Chrysler, Honda, Iveco, Lotus, Mercedes, Mitsubishi, Porsche, Saturn, Volkswagen and Volvo. For example, the Lotus Eco Elise  and the Mercedes C-Class both contain hemp (up to 20 kg in each car in the case of the latter).
File:Natural fibre polymer nabasco.jpg
Hemp composite sink basin

5. Jewelry
File:Hemp and Bead Jewelry, Oakland Chinatown Street Fair.jpg
Hemp and Bead Jewelry on Oakland Chinatown Street Fair
Hemp jewelry is the product of knotting hemp twine through the practice of macramé. Hemp jewelry includes bracelets, necklaces, anklets, rings, watches and other adornments. Some jewelry features beads made from glass, stone, wood and bones. The hemp twine varies in thickness and comes in a variety of colors. There are many different stitches used to create hemp jewelry, however, the half knot and full knot stitches are most common.

6. Cordage
File:Cordage en chanvre.jpg
Hemp rope was used in the age of sailing ships, though the rope had to be protected by tarring, since hemp rope has a propensity for breaking from rot, as the capillary effect of the rope-woven fibers tended to hold liquid at the interior, while seeming dry from the outside. Tarring was a labor-intensive process, and earned sailors the nickname "Jack Tar". Hemp rope was phased out when Manila, which does not require tarring, became widely available. Manila is sometimes referred to as Manila hemp, but is not related to hemp; it is abacá, a species of banana.

7. Animal bedding
File:Hemp Straw.JPG
Hemp straw animal bedding
Hemp shives are the core of the stem, hemp hurds are broken parts of the core. In the EU, they are used for animal bedding (horses, for instance), or for horticultural mulch. Industrial hemp is much more profitable if both fibers and shives (or even seeds) can be used.

8. Water and soil purification
Hemp can be used as a "mop crop" to clear impurities out of wastewater, such as sewage effluent, excessive phosphorus from chicken litter, or other unwanted substances or chemicals. Hemp was being used to clean contaminants at the Chernobyl nuclear disaster site. This is known as phytoremediation - the process by the cleaning radiation as well as a variety of other toxins from the soil, water, and air.

9. Weed control
File:Hanflabyrinth Berlin 2009 - 40.jpg
Hemp, because of its height, dense foliage and its high planting density as a crop, is a very effective and long used method of killing tough weeds in farming by minimizing the pool of weed seeds of the soil. Using hemp this way can help farmers avoid the use of herbicides, to help gain organic certification and to gain the benefits of crop rotation per se. Due to its rapid, dense growth characteristics, in some jurisdictions hemp is considered a prohibited noxious weed, much like Scotch Broom. It has been used extensively to kill weeds in agriculture.

10. Fuel
File:Biodiesel.JPG
Biodiesel hemp sample
Biofuels, such as biodiesel and alcohol fuel, can be made from the oils in hemp seeds and stalks, and the fermentation of the plant as a whole, respectively. Biodiesel produced from hemp is sometimes known as "hempoline".
Filtered hemp oil can be used directly to power diesel engines. In 1892, Rudolf Diesel invented the diesel engine, which he intended to fuel "by a variety of fuels, especially vegetable and seed oils, which earlier were used for oil lamps, i.e. the Argand lamp."
Production of vehicle fuel from hemp is very small. Commercial biodiesel and biogas is typically produced from cereals, coconuts, palmseeds and cheaper raw materials like garbage, wastewater, dead plant and animal material, animal feces and kitchen waste.

Source: wikipedia.org

LinkWithin

Related Posts Plugin for WordPress, Blogger...