this post was submitted on 05 Mar 2024
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Fuck Cars

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A place to discuss problems of car centric infrastructure or how it hurts us all. Let's explore the bad world of Cars!

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[–] [email protected] 17 points 8 months ago (1 children)

Is natural rubber a plastic?

[–] [email protected] 57 points 8 months ago (1 children)

Tires aren't made exclusively of natural rubber, they contain synthetic polymers among other things.

Additionally, by vulcanizing the rubber, three-dimensional chemical bonds resembling those found in synthetic plastics are created to harden the material.

So the end product is not really "natural" or "rubber" anymore.

[–] [email protected] 7 points 8 months ago (6 children)

What's the alternative? Basically all wheels use vulcanized treads.

[–] [email protected] 38 points 8 months ago (1 children)

That's the point of the 15 minute city - that is, a city where everything its people need is within a 15 minute walk. People travel less and when they travel they walk or bike. The alternative, in other words, is better city design.

[–] [email protected] 14 points 8 months ago (2 children)

I think you mean that no one will be allowed to go more than 15 minutes away and everyone will be in concentration camps!0👿👿👿

[–] [email protected] 6 points 8 months ago

You forgot about the mandatory surgeries

[–] [email protected] 1 points 8 months ago

yes the trackers from the vaccines identify your home location and when the gps signals show you surpassed them it disintegrates you.

[–] [email protected] 21 points 8 months ago* (last edited 8 months ago)

The heavier the vehicle the more wear on the tires, and that works the other way around too. Bicycles are so lightweight that they don't shed rubber much faster tennis shoes.

[–] [email protected] 14 points 8 months ago (1 children)
[–] [email protected] 14 points 8 months ago

My commute is on steel wheels (train).

[–] [email protected] 6 points 8 months ago (1 children)

The last time there was a similar thread there were some links to some plant based alternatives. They seem viable but there was no investment because you guessed it, they would be more expensive than the tyres we use now.

[–] [email protected] 3 points 8 months ago (1 children)

Rubber is plant based though. A different commenter explained that vulcanized rubber is basically a plant based plastic.

[–] [email protected] 1 points 8 months ago

Natural Rubber is plant based but there are synthetic rubber like SBR or BR also used when making different tyre compounds.

[–] [email protected] 1 points 8 months ago (1 children)

There is Michelin’s Tweel concept but it takes a huge cost for additive manufacturing required to manufacture it since it has replicate the cushioning and dampening aspect of tires. (Or else the ride will be bumpy as hell). Only NASA uses it for the rovers and stuff coz it’s about $20k for each wheel of 4 in width.

[–] [email protected] 1 points 8 months ago (1 children)

Im almost certain the tread is still rubber.

[–] [email protected] 2 points 8 months ago

It’s rubber mixed with carbon fiber and other processing oils plus wax for oxide protection plus sulphur and with which it’s vulcanized.