Biodegradable plastics from a plentiful natural resource
Wolfgang Glasser says he was hesitant at first when a start-up company asked him to be their chief scientific officer. But then the professor emeritus of sustainable biomaterials realized that cycle Wood Solutions Inc. could make his dream — biodegradable plastics from a plentiful natural resource — a reality.
During his three decades with Virginia Tech’s College of Natural Resources and Environment, Glasser worked with many students as they advanced the field of natural polymers. But the most recent breakthroughs came in partnership with two University of Arkansas MBA graduates.
When Nhiem Cao, a chemical engineer, and Kevin Oden, an industrial engineer, both of whom had been with International Paper, had to write a business plan to complete their MBA degrees, they came up with a plan to use lignin for biodegradable plastic bags. The plan won a number of regional, national, and international competitions, and then drew the attention, and support, of venture capitalists.
Cao and Oden called Glasser based on his work with lignin, and he agreed to consult.
“Then they went to National Science Foundation for a Small Business Innovation Research grant,” Glasser said. “The NSF wanted them to have a lignin chemist on staff, and that is how I became the chief scientific officer of cycleWood Solutions.”
The Fayetteville, Ark., company has created and tested a number of products. Pilot scale production volumes are being used for specific customer applications while the company moves towards commercial volumes.
Lignin is a compound of plant cell walls that is discarded in the papermaking process. Glasser began working with it because it was plentiful and cheap. It could be used to make “green” polymers — those from a renewable source rather than from petroleum. He worked with IBM to make green circuit boards, for instance.
“My ‘ah ha’ moment came when, in addition to viewing it from a resource viewpoint, I realized its environmental benefits,” he recalled. “It could be compostable. Plastic bags and bottles needn’t last forever.”
His research hit a speed bump when an important source of lignin dried up because the mill that provided it went out of business.
“The pilot pulp mill in New Brunswick, Canada, operated a 60-ton-per-day papermaking plant using ethanol for dissolving and isolating lignin, called organosolv lignin, that was used by many academics as well industries, like IBM, as a resource for developing ‘green’ products based on biobased resources,” said Glassser.
Now, however, Domtar Corporation’s Plymouth, N.C., pulp mill has installed technology from the Swedish firm Metso called LignoBoost to remove lignin during the pulp process.
“Domtar, the first user of the technology, is isolating 75 tons of lignin per day and looking for markets,” said Glasser. The project, funded by the National Institute of Food and Agriculture, includes setting up similar mills across the U.S. to refine pulp and paper mill byproducts for biofuels and other bioproducts, “so lignin has become a cheap resource again.”
That’s where cycleWood Solutions comes in. Cao, Oden, and Glasser have filed patent applications on the chemistry and technology that deals with lignin modification and preparation of derivatives. The company has produced single-use plastic bags, trash can liners, and meat bags, and is testing cups and plates.
“The compostability was tested by a commercial lab in Belgium, and the bags meet the requirements of disintegrating to particles less than 2 millimeters in size in 180 days,” said Glasser. “The bags are made with natural components and can be composted just like any other plant-based material.”
Plastic garbage bags are being outlawed in many places worldwide because they don’t degrade; cycleWood bags degrade in composting operations. The process is speeded by the structure of the polymer, the composting process, and the addition of another biodegradable polymer with the lignin. “Lignin gives the plastic the needed strength,” said Glasser.
The Latest on: Biodegradable plastics
[google_news title=”” keyword=”Biodegradable plastics” num_posts=”10″ blurb_length=”0″ show_thumb=”left”]
via Google News
The Latest on: Biodegradable plastics
- Taking plastics full circle: Creating a sustainable future in Indonesiaon May 1, 2024 at 7:58 pm
Indonesia has an opportunity to take a holistic, cross-stakeholder approach by restoring the nonbiodegradable, fossil fuel-based material to its original aim: to reduce harm to nature.
- Researchers Develop Biodegradable Plastics To Reduce Environmental Footprinton May 1, 2024 at 11:44 am
The researchers emphasise that introducing live cells into polymer composites could significantly improve both their material properties and ecological footprint. This work presents a scalable method ...
- This ‘living plastic’ breaks down all by itself, thanks to bacteriaon May 1, 2024 at 7:20 am
Researchers just created a biodegradable plastic using bacteria spores and thermoplastic polyurethane that could even benefit plants.
- Revolutionary new ‘living plastic’ could slash environmental damageon April 30, 2024 at 9:43 am
By Stephen Beech via SWNS A revolutionary new "living plastic" could slash damage to the environment, claims a new study. The biodegradable material houses bacterial spores that help it break ...
- Biodegradable 'living plastic' houses bacterial spores that help it break downon April 30, 2024 at 8:00 am
A new type of bioplastic could help reduce the plastic industry's environmental footprint. Researchers led by the University of California San Diego have developed a biodegradable form of ...
- Self-digesting plastic could be better, faster, stongeron April 29, 2024 at 5:00 pm
but also strengthen the plastic itself. The team developed a biodegradable version of the commercial plastic polyurethane, which is often used in phone cases, footwear, and car parts but currently has ...
- This startup just raised funding to turn wood pulp into sustainable, biodegradable plasticson April 29, 2024 at 12:00 pm
A Vancouver, B.C.-based startup making biodegradable plastics out of wood pulp has raised up to $5 million from Brazil’s Suzano Ventures, the investment arm of a manufacturing giant turning farmed ...
- Dow CEO on Plastics Treaty: Governments Must Mandate Recyclingon April 22, 2024 at 7:26 am
Opinions expressed by Forbes Contributors are their own. I distill energy policy developments and explore energy innovation. The Canadian government is hosting nearly 200 countries, global ...
- Bioplastics as toxic as regular plastics; both need regulation, say researcherson April 21, 2024 at 5:00 pm
Bioplastics, a term that includes both bio-based plastics and biodegradable plastics, first came on the market in the early 2000s. Their growth has been slow, likely due to poor performance and a ...
- Q&A | Earth Day is Monday and this MUN chemist is hoping to change the future of plasticon April 21, 2024 at 1:28 pm
She works on developing new plastics, including a project that sees fish oil being turned into a more biodegradable form of plastic. (Memorial University) Now, as a chemist, you've been working on ...
via Bing News