It’s awards season. And while the Green Chemistry Challenge
Awards
might not enjoy the same cachet as the Oscars or the Grammys, the
winning companies deserve plenty more attention.
“It’s an exciting time to be a chemist,” says Adelina
Voutchkova, who leads
the American Chemical Society’s Green Chemistry
Institute — which stages the awards,
together with the US Environmental Protection Agency.
The awards shine a light on the green-chemistry innovations that are making the
world a better place. By redesigning the way we make and use chemicals,
companies can reduce — or eliminate — hazardous substances. And as this year’s
winning companies showcase, there are also plenty of other ways in which green
chemistry can significantly reduce our environmental impacts and spur
climate-related innovation.
Among them is Modern Meadow, which topped the
Small Business
category.
The New Jersey-based firm was recognized for its Bio-FREED
technology — which uses bio-based
proteins to create a sustainable dyeing process that can be applied to any type
of fiber.
The team has proved that its revolutionary process saves 95 percent of water
compared to traditional dyeing methods, cuts energy use by 75 percent, and uses
80 percent fewer dyes and chemicals. No additional step is needed to fix the
dye; and it only needs one wash (or sometimes nothing) at the end of the dyeing
process, compared to up to seven washes involved in traditional dyeing.
“Typically, when you dye a textile, it goes into some sort of bath where the
organic chemistry of binding dyes to the textiles happens,” explains Dave
Williamson, Modern
Meadow’s President and Chief Operating Officer. “But that bath then needs to be
changed — and you have to wash the textile several times to remove any of the
colorant that’s not affixed to the textile — so, there’s lots of water and
energy involved. Developing a technology that can have significant reductions in
the overall dyeing process is a huge advantage for the dye industry.”
Bio-FREED can be used at either the pre-dye or post-dye stage, delivering more
environmental savings and supply chain benefits.
Voutchkova says the Awards judging committee was impressed with Modern Meadow’s
“novel approach” to using plant proteins in combination with more traditional
biopolymers to obtain properties to create positive environmental impact.
“It’s an honor to recognize these types of technologies,” she added, “because,
let’s face it, they’re facing an uphill battle getting into a market that
doesn’t automatically recognize the value of this technology and the positive
impact that it will have compared to traditional alternatives that they’re
replacing.”
Bio-FREED (which stands for Fast Resource-Efficient Enhanced Dyeing) is just
one of several applications Modern Meadow developed through its Bio-Alloy
platform
— a proprietary system that combines select proteins with bio-based polymers to
produce a variety of materials that are much more sustainable than their
conventional counterparts while offering comparable or better performance.
“We’re combining two very different materials together at a molecular level. And
when they come together, they behave as though they’re a whole new type of
material,” Williamson says. “An alloy is not a mixture of two different things
that remain the same — when you mix salt and pepper, the pepper is still pepper
and the salt is still salt. An alloy is more akin to combining water and ethanol
to create vodka.”
Modern Meadow is using soy (sourced from the US, so “we don’t have to
worry about deforestation”) as a sustainable protein feedstock, together with
polyurethane: “When we combine those together, we preserve the flexibility of
the polyurethane with the hardness, toughness and natural feel of the protein
together to create a material that is abrasion resistant, ductile and
breathable,” Williamson explains.
Combining two very different polymers that are capable of being mixed is rare,
as polymers don’t like to be molecularly mixed — they like to separate, like
water and oil.
“What made this unique for us is we were able to go back to a first principle’s
understanding to establish what the protein needed to look like, what
functionality it needed to have, how did it behave in different solutions. It
started out as a fundamental physics question — which has allowed us to create
this unique, new alloy material.”
Alongside Bio-FREED, the company has also created Bio-Tex — a luxury
leather-replacement material without the environmental footprint of
conventional
leather
— perfect for accessories; Bio-Tex Shield — a breathable, waterproof
membrane — perfect for outdoor
apparel;
Bio-VERA
is a novel, leather-like material which is lighter and stronger than leather and
with 90 percent sustainable content — perfect for a range of applications
including footwear and automotive; and Bio-Tela is a materials system that
enables the use of rich colors and two-tone effects — perfect for fashion
brands.
Each of the applications uses different combinations of alloys, protein content
and additives. Bio-Tex Shield, for example, was created by adding more and more
protein into the Bio-Alloy to create a coating that allows the protein to
channel moisture through the material — perfect for materials that need to be
both water repellent and breathable: “It avoids the use of the forever
chemicals
that have been widely employed in these products for years and years,”
Williamson says.
He asserts that when it comes to realizing the environmental benefits achieved
by these new materials, the company has barely scratched the surface: “That’s
the power of the Bio-Alloy: Being able to easily change the properties of a
material allows you to address a wide range of applications without having to go
back and do a lot of cumbersome, fundamental research and development. This
makes it really exciting from a technical perspective, but also from a market
perspective.”
As more and more companies strive to reduce their impacts and contribute to the
climate fight, green chemistry holds innumerable solutions.
“Sustainability has been a critical issue of importance that’s been emerging in
the corporate world these last five years. But the ‘how’ of sustainability is
still very much evolving,” Voutchkova says. “It’s critical to think about the
design of any new chemical, any new process or any new material by considering
the environmental impact from a very early stage.”
Part of the answer lies in asking chemists and engineers to think beyond atoms
and molecules, and about the context in which their creations might be used in
the real world — and then, design new chemistries that have significant impact.
“Modern Meadow is a company that is committed to incorporating green chemistry
from the early stages in their R&D. That is hopefully going to become the status
quo for most companies.”
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Sustainable Brands Staff
Published Feb 22, 2024 2pm EST / 11am PST / 7pm GMT / 8pm CET