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Is Hemp Really Stronger Than Steel? How?

Is Hemp Really Stronger Than Steel? How?

Let us think of the comparative strength of a metal known to be strong and a hemp plant fiber. Which do you think would be stronger? You’re tempted to say hemp. But is hemp stronger than steel? The comparative strength of steel and a plant fiber, let us say. What would be your common-sense response?
We actually asked this question randomly to a number of people of different age-groups. We simply wanted to check whether our intuitive response matches with theirs. It did. Almost everyone said – steel would be stronger. Only two people refused to answer. They believed there was a trick in the question somewhere.
The common-sense response would be correct in most cases. With one exception: hemp fiber. Fibers from this non-narcotic variety of Cannabis Sativa can be stronger than steel, experts have demonstrated.

By Way of Clarification

You have read right: hemp does belong to the same plant species as the drug cannabis or marijuana: Cannabis Sativa. However, hemp is not a drug. It cannot give you a high. Hemp does not have more than 0.3% tetrahydrocannabinol (THC) to do that.
THC is the substance with psychoactive qualities, present in the narcotic cannabis at a concentration level of 7.5-10% or more. Hence the mind-altering capacity of cannabis or marijuana. Hemp is clean.

Is hemp stronger than steel? The Truth – Revealed

Strength in scientific terms gets calculated in two different ways mainly. Hemp fibers have been studied from both of these ways of measuring strength. Counter-intuitive though it seems, hemp fiber has proven to be stronger than steel from both these angles. Below, we describe in detail how that is possible.

Tensile and Compressive Strength

Tensile strength is the ability to withstand tension. Compressive strength is the ability to endure compression. In other words, how much tension or tautness can something take before it gets permanently deformed? That is the tensile strength of that material.
For example, how much pulling can a rope endure before it tears? That is the rope’s tensile strength. To tear is to get permanently deformed. It could also be measured in terms of weight endurance. For instance, how much weight can a tree branch take before it cracks and breaks?
The weight at which the tree branch cracks and breaks is beyond its tensile strength threshold. The maximum weight it can endure is indicative of its ultimate tensile strength.
Similarly, how much compression can something take before it loses its capacity to mend itself? That is compressive strength.
Think of spring in this context. Normally, a spring will bounce back to its own shape as soon as you remove the pressure you are applying to it. However, it is also possible to keep squeezing a spring until it is no longer able to regain its own shape.
The degree of pressing a spring can take without losing its shape permanently is its compressive strength. In simple terms, the pressure something can withstand before cracking and breaking or tearing is its tensile strength. The force applied takes the form of pulling at both ends.
It can also take the form of piling on increasing amounts of weight on something. till it cracks and breaks. The amount of pressure something can endure without bending and losing its shape permanently is its compressive strength. The force applied in this case takes the form of pushing from both ends.

The Tensile Strength of Steel

Metallurgy, the science of metals, mentions steel to be one of the strongest metals. Strictly speaking, steel is not metal as it is an alloy of iron and other elements, among which carbon is a non-metal. That does not make a difference to the strength of steel, though.
There are different varieties of steel with varying tensile strengths. The weakest form of steel is plain carbon steel with a tensile strength of up to 150 MPa. The strongest variety is ausformed steel with 3000 MPa of tensile strength.

The Tensile Strength of Hemp Fibers

In an article published in 2003 in the Materials Research Innovations, the authors report extensively on the tensile strength of hemp fibers of different diameters. The general rule in the case of synthetic fibers is that a reduction in the diameter of the fiber also decreases the faults.
That implies a lesser diameter of synthetic fibers gives it higher tensile strength. Authors Prasad and Sain demonstrate in their article that this same principle is applicable to hemp fibers also. Hemp fibers with a diameter of 4 μm (micrometer) have a tensile strength of 4200 MPa.
In contrast, the tensile strength of hemp fibers of 66 μm is 250 MPa only. The extensive experiments by Prasad and Sain demonstrate that the thickest hemp fiber with the least tensile strength (250 MPa) has more tensile strength than the variety of steel with the least tensile strength (150 MPa).
Their experiments also demonstrate that the thinnest fibers of hemp with the maximum tensile strength (4200 MPa) is stronger than the steel variety with the highest tensile strength (3000 MPa). The range of tensile strength possessed by hemp fibers of different diameters is, thus, more than the tensile strength range of different varieties of steel.

Is hemp stronger than steel? A Simpler Explanation of the Answer

It is possible to explain the above feature of strength in simpler terms, without using the scientific jargon ‘tensile strength’. It will take a lot more pressure to crack or break composite materials made of hemp fibers than the amount of pressure needed to crack or break things made of steel.
This is true across different varieties of steel and varying diameters of hemp fibers. The weakest hemp fiber needs more pressure to crack and break than the weakest variety of steel. The strongest variety of steel needs less pressure to crack and break than the strongest variety of hemp fiber.
Hemp has the capacity to endure double the weight of steel before it cracks and breaks. That is how much stronger hemp is than steel.

The Compressive Strengths of Hemp and Steel

The ability of hemp not to bend to compression is nearly six times that of steel, experts say. From the angle of compressive strength, therefore, hemp is six times more bend-resistant than steel.
That makes hemp stronger than steel from both aspects of strength measurement. The next time someone asks you – Is hemp stronger than steel? You can confidently answer – hemp, and then educate everyone on ‘how’ it’s stronger.

Strength Measurement in Applications

On June 19, 2017, CNBC reported on an episode from the “Jay Leno’s Garage’ show, where Leno drove a sportscar named Renew. Former Dell executive Bruce Dietzen got this sportscar specially made for himself out of 100 pounds of hemp fibers.
Both Dietzen and Leno punched the car with considerable force several times. Their hands were hurt, but there was no dent in the car, unlike a car with a steel body. According to the owner, his hemp car is 10 times stronger than any car made of steel.

A 2018 article in Material Science recommends the use of hemp cables instead of cables made of harmonic steel for roofs with hyperbolic paraboloid cable nets. According to the author, this substitution would be both cost-effective and environment-friendly without involving any compromise in the strength aspect.
News 18 reported on August 26, 2019, that the Canadian Hempheath Group has devised the world’s first aircraft made entirely from hemp. This four-seater plane has everything, from the wings to the body, the seats, and pillows are made from hemp.
The company intends to run it on hemp biofuel also. Hemp’s superior ability to endure more weight than steel and its considerably higher bendability makes it 10 times stronger than steel, says the founder of the company.

Sources:

Hemp Cables, a Sustainable Alternative to Harmonic Steel for Cable Nets

Tensile Strength of Steel And Other Metals

A Study in Physical and Mechanical Properties of Hemp Fibres

Vishal Vivek  
December 3, 2019

https://hempfoundation.net/is-hemp-really-stronger-than-steel-how/#:~:text=Hemp%20fibers%20with%20a%20diameter,%CE%BCm%20is%20250%20MPa%20only

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New Wind Generation Technology Produces 6 Times More Energy

A wind power company, SheerWind, from Minnesota USA has announced its new Invelox wind power generation technology. The company says its turbine could generate six times more energy than the amount produced by traditional turbines mounted on towers.via: News Direct

source/image: News Direct

Invelox does not rely on high wind speeds. It captures wind at any speed, even as low as 2 miles per hour.The result is the design is capable of producing 600% more energy due to the low wind speed.

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Hemp 3D printer filament: A sustainable alternative

Cannabis has over recent time been a growing topic of debate. As it is discussed in various ways for its medical uses, environmental benefits and sustainable abilities, it is only natural that Hemp 3D printer filament would also come up at some point. While it is not the only alternative 3D printer filaments we covered on 3Dnatives, here is what you need to know about this 3D printing material.

The history

One material that historically has been a big part of the world culture in over 10.000 years is: hemp. It was one of the first plants domesticated by Humans and have been used in day-to-day life for its solid fibres, nourishing seeds and natural medicinal properties. It was even commonly used as paper and the growth of the plant encouraged by Kings. However around the 1950s a decline came about when cannabis was demonized for its euphoric properties. Since then the full plant has been looked down upon in big parts of the USA and Europe and the use of the material declined drastically.

hemp 3D printer filament

Industrial hemp material

In recent years however, the focus have turned back into a positive spin for the versatile material. More and more places are changing legislation, such as in California, and opening up for implementing the plant into everyday life. So as Hemp is an environmental-friendly material, it could be the solution to a lot of environmental problems. The plant reduces water consumption, pesticide use, and much more. The versatility of the plant can be used for a ton of things, such as biofuel and textiles. This is where 3D printing comes into play, as a lesser-known usage of this plant is for 3D printer filament. Along with hemp filament being developed it brings a new aspect to the additive manufacturing industry.



Manufacturing process

3D printing is improving the manufacturing processes in terms of reducing the environmental impact of manufacturing by reducing waste and speeding up the processes while often using less energy. Still, there are a way to go before a completely closed loop system and environmental-friendly filaments on the market. Mistakes and bad 3D prints happens from time to time. When using traditional plastics this can build up a lot of unwanted and unneeded waste. A way to counteract this is to print with biodegradable or recyclable material, such as PLA and Hemp. Because of hemps natural abilities it has no need for pesticides, it fertilises the soil it grows in and can grow more densely than other crops. Already these aspects make hemp a good material to work with as an eco-solution. PLA, which hemp is often combined with, is already biodegradable on its own. This based in PLA being sourced from materials such as sugar canes and cornstarch. Therefor combining PLA and Hemp in a hybrid material will bring new possibilities to the table.

hemp 3D printer filament

The process of making hemp filament is fairly simple. Most commonly you will see a material like PLA as a polymer base. The hemp fibre is grounded up into fine particles and mixed into it. This process is done in the same way a lot of other hybrid filaments are made. However, it is often made without added colour to keep the positive impact all the way through and has a special texture to add to the print. With this and as hemp is good for the environment, it is no wonder that there is a demand for it.

hemp 3D printer filament

The debate on how legal the various filaments are, depends on the individual locations. In France the law is set to the filament having less than 0,2% Tetrahyrdocannabinol or THC for short. But the general laws are currently changing in various locations around the world. One place where legislation seems to be moving fast over recent years is the US. In 2014 then president Obama signed the agricultural act of 2014. This amongst other, allowed for universities and state departments of agriculture to start cultivating industrial hemp for limited purposes, opening up for the market to develop. This year alone at least 38 of the states considered legislation related to the hemp industry, covering everything from clarifying laws to establishing new licensing requirements and programs. Out of this at least 5 states have enacted legislation to establish hemp research and industrial pilot programs along with more states.

Main producers

There are already a couple of companies out with their version of the hemp 3D printer filament. One such company is 3D4MAKER. They have developed their product for the market of biodegradable plastics with the ability to recycle or compost the filament afterwards.

hemp 3D printer filament

Another company is 3Dfuel. The company have released a series of eco-friendly composite materials. Partnering with c2renew to produce the line, they came up with 4 materials so far. They consist of Wound Up: a coffee filament, Buzzed: a beer filament, Landfillament: a trash filament and Entwined: their hemp filament. All of which is produced using waste materials and Ingeo PLA to provide functional and sustainable 3D prints. 3Dfuel even released an improved version of their hemp filament. In the v2 version they basically reduced the particle size of the hemp material. The finer particles allows for an increase in the percentage used in the filament with the visible bio-fill creating a unique texture. Showing an interest in improving the possibilities.

A newer company, doing so as well and pushing the natural material is Kanèsis. Starting out slow with a campaign that didn’t take off, they still managed to fund their HempBioPlastic or HBP®. The company persisted, launched their website and have worked to develop solutions for a sustainable world ever since. On their site they sell the HBP filament as well as a Weed filament. The main difference between the two, being the THC levels. The Italian company is sole committed to natural materials designed for the manufacturing industry, bringing down the environmental impact and providing all-around benefits.

hemp 3D printer filament

Kanèsis’ HempBioPlastic or HBP®

How to use Hemp 3D printer filament

The general printing properties of most of the hemp 3D printer filament closely resembles PLA filament. However, it might be even easier to print with as it, depending on which producer you buy it from, can print at 10°C lower than PLA. The filament is also odorless, which helps for indoor use in smaller spaces. And it has low-warp, making a heated bed unnecessary when printing. Though if you have one an optimal heat setting seems to be around 45°C. Since hemp 3D printer filament is easy to print and works in the same manner as PLA, it can be used in a variety of ways. However, do to the ease of use, along with the biodegradable attributes it would be good for daily prototyping. Not to mention other projects of experimenting that wouldn’t have the need for colouring. Of course if you are searching for a specific look or texture to your print, it might be worth checking out as well. Although the hemp filament is a hybrid filament at this point, it seldom has the same texture as traditional PLA.

Hemp 3D printer filament

The price varies quit a lot form one hemp printer filament to the next. Kanesis sells their HBP and Weed filament for around $37 for a 500g spool. 3D4MAKERS is around the same kg price with a 750g spool for ca. $48. In the more expensive corner you can look to 3Dfuel’s entwined that sells for $45,99 for 500g. Depending on the producer the prices varies, along with the actual plant material percentage in the filaments.

3Dfuel created a short video to introduce you to the concept of hemp 3D printer filament:

 

 

So while there are bio-filaments on the market already, it is only the start. Both established and new companies will continue to develop and improve their products. What to you think of the hemp 3D printer filament? Comment below.

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Ecologische solar boat project in volle vaart.

Ecologische solar boat project in volle vaart.

Vandaag werden we hartelijk ontvangen in de unieke wereld van kapitein Peter Van Elslander op zijn ecologische solarboat.
Een vaarwater van rust en ontspanning.

Voor ondernemer Peter Van Elslander is het duidelijk, zijn ecologische pleziervaarten zijn meer dan een bron van ontspanning., ze zijn vooral in hoge mate een solide en creatief aanbod inzake mobiele verplaatsingen op het water.

Geen enkele storende prikkel bij het varen, de afwezigheid van ronkende motoren, het varen over het water is zonder geluid, de solarboot glijdt stil en trillingsvrij over het wateroppervlak. Tijdens de tocht hebben we ons zalig in de divan genesteld en nuttigen we een heerlijk gekoelde drank, die altijd aan boord aanwezig zijn.

De onthaasting en de natuur vanop het water is een zalige belevenis. Geen mens die tijdens je verblijf beslag op je legt, zuivere ‘Quality time’ waarbij Captain Sunset samen met jou op zoek gaat naar begrippen rust en deze omkadert in zorgvrije momenten.

De afwezigheid van storende prikkels maken dit bijzonder concept tot puur genieten en geeft een mens een nieuwe dimensie.

Peter heeft een warm hart. Hij is begaan met zijn bootreizigers, zijn jarenlange ervaring als ondernemer heeft een echte en hechte know-how en band geschept van ecologische en stijlvolle aard.Een boottocht met de solarboot zal je gemoed en geest verrijken.

Alles verloopt volgens de hygiënische normen inzake de coronamaatregelen.
In augustus kan je nog de ganse maand genieten in de omgeving.
Eerste afvaart is 13:00, laatste afvaart is 17:30.
Reserveren is niet noodzakelijk. Prijs is €5 per persoon.
Het vertrekpunt is in augustus steeds de Plaisancebrug achter de Brusselpoort te Mechelen.

Andere mogelijke formules: Elke dag, van 1 augustus tot en met 31 augustus is het ook mogelijk de boot af te huren met Peter zelf als uw lieve, vriendelijke kapitein.
Dit is vanaf 18:30 mogelijk. Prijzen zijn €200 voor 2 uur varen, €150 voor 1 uur en €100 voor een half uurtje. Indien er onderweg ergens getafeld wordt bedraagt de prijs per ingegaan uur wachttijd €25.

Met veel plezier licht ik u verder in over de vele mogelijkheden hieromtrent om iets op uw maat te maken.

U mag tot en met 12 personen komen zolang deze van dezelfde bubbel zijn natuurlijk.
Vanaf september 2020 kan je ook onthaasten met een staycation.

Privé faciliteiten met vakantiesfeer:Vanaf 1 september is het ook mogelijk de boot te huren, de tarieven hiervoor heeft Peter nog niet beslist, maar er zijn ook meerdaagse tochten mogelijk met overnachting vanaf dan. Best is hiervoor telefonisch contact op te nemen om samen te overleggen en de mogelijke formules onderling te bespreken, gaande van inspirerende tot beloftevolle arrangementen voor privépersonen en beperkte zakenrelaties.Van samen genieten, het delen van eenzelfde ervaring heeft Captain Sunset met de solarboot zijn handelsmerk gemaakt en hiermee in Mechelen zowat uitgegroeid is tot een uniek concept.

Info : Peter Van Elslander- Captain Sunset – Solar Boat Trips Mechelen
GSM en Whatsapp: +32 476 37.57.51

Reportage & Foto’s : Eric Creve, Inge Sève.
BBONM 20.08.2020