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carbon fibre from plants? |
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Riv
Far too distracted from work Joined: 23 Nov 13 Location: South Devon Online Status: Offline Posts: 353 |
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Topic: carbon fibre from plants? Posted: 18 Jan 18 at 10:05pm |
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The ability to disassemble may also make disposal easier, easier to get it to the recycling area for instance.
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Sam.Spoons
Really should get out more Joined: 07 Mar 12 Location: Manchester UK Online Status: Offline Posts: 3398 |
Post Options Quote Reply Posted: 18 Jan 18 at 10:25pm | |
Yup, good point, definitely easier for the average punter to dispose of a 'dead' hull. A chainsaw would be equally as effective though and rather quicker
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Spice 346 "Flat Broke"
Blaze 671 "supersonic soap dish" |
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Rupert
Really should get out more Joined: 11 Aug 04 Location: Whitefriars sc Online Status: Offline Posts: 8956 |
Post Options Quote Reply Posted: 19 Jan 18 at 7:57am | |
A chain saw runs on fossil fuels, though.
Maybe we should take another look at carvel built boats, where planks are easy to replace. Using mahogany is probably not viable any more, but how about planks made from recycled plastic bottles? |
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Firefly 2324, Puffin 229, Minisail 3446 Mirror 70686
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Sam.Spoons
Really should get out more Joined: 07 Mar 12 Location: Manchester UK Online Status: Offline Posts: 3398 |
Post Options Quote Reply Posted: 19 Jan 18 at 8:54am | |
Brilliant, and given that we are told the plastic takes hundreds of years to break down we should have some super long lasting boats
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Spice 346 "Flat Broke"
Blaze 671 "supersonic soap dish" |
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boatshed
Far too distracted from work Joined: 12 Apr 05 Online Status: Offline Posts: 457 |
Post Options Quote Reply Posted: 19 Jan 18 at 9:10am | |
These people are extracting sugars from the cellulose within the crop waste. Often called cellulosic sugars. Sugar is a carbon source and can be used to make a wide variety of bio-chemical products. Carbon fibre is new to me but certainly organic resins and other high value products are possible. Extracting the sugar is an enzyme based process and ain't a bus ride away from how herbivores also convert cellulose in plants to sugars for their very existence. My company works with a US outfit who make cellulosic sugars but in their case, the cellulose source comes from household garbage by way of its high proportion of food, card and paper waste. One could, in theory make a high-tech boat from rubbish. A rubbish boat, if you like. Edited by boatshed - 19 Jan 18 at 9:11am |
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Steve
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423zero
Really should get out more Joined: 08 Jan 15 Location: United Kingdom Online Status: Offline Posts: 3406 |
Post Options Quote Reply Posted: 19 Jan 18 at 10:09am | |
Rotomoulded boats virtually indestructabr, way forward, just keep out of the sun.
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Jack Sparrow
Really should get out more Joined: 08 Feb 05 Location: United Kingdom Online Status: Offline Posts: 2965 |
Post Options Quote Reply Posted: 19 Jan 18 at 10:19am | |
I love the idea of that.
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Riv
Far too distracted from work Joined: 23 Nov 13 Location: South Devon Online Status: Offline Posts: 353 |
Post Options Quote Reply Posted: 19 Jan 18 at 9:39pm | |
Good idea for producing the carbon fibre element but can such processes produce the resins to embed the CF in?
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Riv
Far too distracted from work Joined: 23 Nov 13 Location: South Devon Online Status: Offline Posts: 353 |
Post Options Quote Reply Posted: 19 Jan 18 at 9:46pm | |
Regards Rupert's idea about carvel or of course clinker/lapstrake boats they are all endlessly repairable and of course modular in that individual parts can easily be replaced (assuming they are riveted in the case of clinker)
In terms of the game that we like to play would the racing be of any less quality if we sailed such craft? You could weigh them and use a Lamboley test to check the weight distribution. Yes you would have to do it every year but not impossible.
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Granite
Far too distracted from work Joined: 12 May 04 Location: Scotland Online Status: Offline Posts: 476 |
Post Options Quote Reply Posted: 23 Jan 18 at 12:56pm | |
understanding the scale of things is hard and it is difficult to know how important the waste or energy cost of building something is, compared to general use..
So lets say a typical small dinghy is 100kg with a 50% resin glass ratio it is about 50Kg of plastic plus 50kg of Glass plus some aluminium and other stuff. From some quick googling it looks like it takes about 1 to 1.5 liters of oil to make a kg of plastic A kg of glass takes between 5 and 10 kWh to be produced which would need a bit less than a liter of oil per kg. So very back of the envelope calculations a dinghy could be produced for about 100 liters of oil, and it would probably get good use for 10 years. A trip to the other end of the country for a sailing event would probably take about the same amount of fuel for just a weeks worth of fun. |
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If it doesn't break it's too heavy; if it does it wasn't built right
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