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Home NEWS Science News Chemistry

Support grows for Purdue sustainable method for manufacturing composite fiberboard

Bioengineer by Bioengineer
June 26, 2020
in Chemistry
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Credit: Chris Adam/Purdue University

WEST LAFAYETTE, Ind. – Composite binders are important materials used in furniture, flooring and other consumer products, but they can pose health hazards.

Now, Purdue University researchers have developed a lower-cost, sustainable and greener method for producing composite boards – a method that is already seeing growing support from major industry players.

Fabrication of many composite boards requires the use of formaldehyde-based resin binders that are released into the home environment over time, posing significant health hazards since formaldehyde is a known carcinogen.

“The uniqueness of our method is that we take non-food-based biomass such as wood chips, sawdust or rice straw, and put it through a process to extract lignin-like material that can then be used as the main component in a non-formaldehyde binder system for composite boards,” said James Caruthers, Purdue’s Gerald and Sarah Skidmore Professor of Chemical Engineering. “Our method is sustainable and green because lignin is a waste byproduct and one of the most abundant biopolymers on Earth.”

The team worked with the Purdue Research Foundation Office of Technology Commercialization to patent this technology.

The researchers and OTC have been working with CalPlant and Wilsonart to bring the Purdue technology to the market. Wilsonart is a global manufacturer and distributor of high- pressure laminates and other engineered composite materials. CalPlant, an agrifiber-focused company, produces rice straw-based medium-density fiberboard.

The Purdue team is looking to commercialize the patented method for production of this lignin-based material for use in the production of composite boards, where there may be other applications such as adhesives, detergents, abrasive product making, filter paper and many other products.

“We see this Purdue technology helping us stay on the cutting edge in the rice straw manufacturing field with sustainable and green solutions,” said Jerry Uhland, CEO for CalPlant. “The novel Purdue method is intriguing as we look to use lignin-based resin. This has been a very interactive process as we tap into the innovative environment of the university.”

Tests using the Purdue team’s method showed that the combination of lignin-based resin with cellulosic fibers in matrix with the cross-linkable variations produced composite boards with desirable physical properties.

“As a major player in the $4 billion-plus global high-pressure laminates market, Wilsonart is always looking for new technologies to help us strengthen our products and bring new solutions to the world,” said Mahesh Subramanian, director of technology operational excellence for Wilsonart. “The Purdue technology has applications and potentially major sustainability advantages for our sourced fiber boards use as glue binder and treated Kraft paper and carrier mediums, as resin extensions and is the building block of laminates and composite compacts. The preliminary tests have already demonstrated the viability of a saturating-type resin.”

The Purdue composite board binder technology also received funding from the Trask Innovation Fund, a development program established to support projects that advance the commercial value of Purdue intellectual property.

“A cost analysis shows a cost reduction over current formaldehyde-free composite board production when fabricating medium-density fiber boards,” Caruthers said. “This technology provides a low-cost sustainable, green method for producing composite boards that could deliver higher margins to composite board manufactures, while at the same time reducing long-term consumer exposure to formaldehyde.”

The functional lignin derivative also has established characteristics aiding antifungal and flame-retardant characteristics. This offers future avenues for chemistry to perfect.

The other residual part of lignin derivatives separated is cleaner wood and opens the door for cellulosic opportunities.

The researchers are looking for additional partners to continue developing their technology. For more information on licensing and other opportunities, contact Dipak Narula of OTC at [email protected] and mention track code 2020-CARU-68907.

###

About Purdue Research Foundation Office of Technology Commercialization

The Purdue Research Foundation Office of Technology Commercialization operates one of the most comprehensive technology transfer programs among leading research universities in the U.S. Services provided by this office support the economic development initiatives of Purdue University and benefit the university’s academic activities through commercializing, licensing and protecting Purdue intellectual property. The office recently moved into the Convergence Center for Innovation and Collaboration in Discovery Park District, adjacent to the Purdue campus. In fiscal year 2019, the office reported 136 deals finalized with 231 technologies signed, 380 disclosures received and 141 issued U.S. patents. The office is managed by the Purdue Research Foundation, which received the 2019 Innovation and Economic Prosperity Universities Award for Place from the Association of Public and Land-grant Universities. In 2020, IPWatchdog Institute ranked Purdue third nationally in startup creation and in the top 20 for patents. The Purdue Research Foundation is a private, nonprofit foundation created to advance the mission of Purdue University. Contact [email protected] for more information.

Writer: Chris Adam, [email protected]

Sources: James Caruthers, [email protected]

Mahesh Subramanian, [email protected], [email protected]

Jerry Uhland, [email protected]

Media Contact
Chris Adam
[email protected]

Original Source

https://www.purdue.edu/newsroom/releases/2020/Q2/interest,-support-grows-for-purdue-sustainable-method-for-manufacturing-composite-fiberboard.html

Tags: Biomedical/Environmental/Chemical EngineeringChemistry/Physics/Materials SciencesMaterialsParticle PhysicsTechnology TransferTechnology/Engineering/Computer Science
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