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Natural rubber with high resistance to crack growth

nature.com

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Re: Natural rubber with high resistance to crack growth

#11

Post by ninalanyon »

actionfromafar wrote: post #5
elihu wrote: post #4

I wonder what the implications for tires are? Apparently modern tires about 1/3 natural rubber. Presumably if they could be made of close to 100% natural rubber, it would mean less microplastic entering the environment from tire wear. On the other hand, you'd need about 3x as much natural rubber production as we have now, which might not be realistic. The wear characteristics would come into play too, though. If pure…

I think it must be much faster tire wear counted in pounds, because the EV tires are also larger.

Really? By how much, and where does the data come from? Is it comparing like for like cars?

Re: Natural rubber with high resistance to crack growth

#12

Post by officeplant »

actionfromafar wrote: post #5
elihu wrote: post #4

I wonder what the implications for tires are? Apparently modern tires about 1/3 natural rubber. Presumably if they could be made of close to 100% natural rubber, it would mean less microplastic entering the environment from tire wear. On the other hand, you'd need about 3x as much natural rubber production as we have now, which might not be realistic. The wear characteristics would come into play too, though. If pure…

I think it must be much faster tire wear counted in pounds, because the EV tires are also larger.

No they aren't? There is a collective industry move towards larger rims which actually means less tire, but sacrifices comfort in my opinion. But that industry move isn't for EV or ICE cars just a buying audience that seems to like larger rims.

Generally they use the same tires as normal cars/trucks/vans/suv's.

ie. My E-Transit uses the exact same tire as the regular Transit van because it was already rated for a vehicle that maxes out at nearly 10,000lb.

Re: Natural rubber with high resistance to crack growth

#13

Post by actionfromafar »

ninalanyon wrote: post #11
actionfromafar wrote: post #5

Earlier quoted context omitted.

I think it must be much faster tire wear counted in pounds, because the EV tires are also larger.

Really? By how much, and where does the data come from? Is it comparing like for like cars?

No because EVs are typically huge.

Re: Natural rubber with high resistance to crack growth

#14

Post by wahern »

atrus wrote: post #6
elihu wrote: post #4

I wonder what the implications for tires are? Apparently modern tires about 1/3 natural rubber. Presumably if they could be made of close to 100% natural rubber, it would mean less microplastic entering the environment from tire wear. On the other hand, you'd need about 3x as much natural rubber production as we have now, which might not be realistic. The wear characteristics would come into play too, though. If pure…

> it would mean less microplastic The term plastic is so vague and overloaded now that it won't. Is an elastomer a plastic? Depends on who you ask. Does a plastic have to be derived from petroleum? Depends on who you ask.

Plastic, in the industrial/commercial products context, was always a very broad term. In addition to being a broad technical term in industry, it quickly became a moniker for the mid-century industrial chemicals revolution similar to the way "computers" was for the 80s, "the internet" was for the 90s/2000s, "social media" for the 2010s, or "AI" for the 2020s.

Re: Natural rubber with high resistance to crack growth

#16

Post by ninalanyon »

actionfromafar wrote: post #13
ninalanyon wrote: post #11

Earlier quoted context omitted.

Really? By how much, and where does the data come from? Is it comparing like for like cars?

No because EVs are typically huge.

The Hyundai Ioniq EV is the same size as the hybrid version and less than a 100 k heavier.

My Tesla S 70D weighs about the same as Mercedes S-class which is a similar size.

The typical EV where I live, Norway, is a Tesla Model 3 or a Volkswagen ID3. The first weighs 1 600 to 1 800 kg, the second 1 700 to 1 900 kg. That makes the Model 3 less than 200 kg heavier than my Rover 75 Connoisseur which was a similar size.

Not everyone has a Mercedes EQ SUV.

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