MIT Engineers Create New Material Stronger Than Steel and Light as Plastic
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Re: MIT Engineers Create New Material Stronger Than Steel and Light as Plastic
#2Can anyone explain why having polymer connected in 2d sheets is better than connecting in all 3 dimensions?
Re: MIT Engineers Create New Material Stronger Than Steel and Light as Plastic
#3There is also the micro plastics issue to solve, before widening the scope of plastic applications.
Re: MIT Engineers Create New Material Stronger Than Steel and Light as Plastic
#4Can anyone explain why having polymer connected in 2d sheets is better than connecting in all 3 dimensions?
From the article:
>The new material is a two-dimensional polymer that self-assembles into sheets, unlike all other polymers, which form one-dimensional, spaghetti-like chains. Until now, scientists had believed it was impossible to induce polymers to form 2D sheets.
ie: the existing polymers use 1D chains, not 3D.
Re: MIT Engineers Create New Material Stronger Than Steel and Light as Plastic
#5Can anyone explain why having polymer connected in 2d sheets is better than connecting in all 3 dimensions?
The planar sheet structure is compared to linear polymer strands, not to a 3 dimensional cube polymer.
The strength advantage would be more like layers of carbon fiber cloth compared to loose fiberglass fibers. Even with the same resin the sheets have a significant advantage structurally.
Re: MIT Engineers Create New Material Stronger Than Steel and Light as Plastic
#6Can anyone explain why having polymer connected in 2d sheets is better than connecting in all 3 dimensions?
From the article: >The new material is a two-dimensional polymer that self-assembles into sheets, unlike all other polymers, which form one-dimensional, spaghetti-like chains. Until now, scientists had believed it was impossible to induce polymers to form 2D sheets. ie: the existing polymers use 1D chains, not 3D.
The article also said that one of biggest challenges with making 2D polymer was keeping it 2D without it going 3D. But there was no explanation why that would be worse.
Re: MIT Engineers Create New Material Stronger Than Steel and Light as Plastic
#7Can anyone explain why having polymer connected in 2d sheets is better than connecting in all 3 dimensions?
Maybe a self-assembled 3D lattice would have some disorder due to the extra degree of freedom which translates to structural weakness.
Re: MIT Engineers Create New Material Stronger Than Steel and Light as Plastic
#8I can't take this too seriously after the "stock video to illustrate the concept of a super strong cell phone" at the top.
Re: MIT Engineers Create New Material Stronger Than Steel and Light as Plastic
#9Sounds like transparent aluminum.
Re: MIT Engineers Create New Material Stronger Than Steel and Light as Plastic
#10No post body was provided.