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Search Results - materials
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Water Dispersible Poly(dimethylsiloxane) Coatings for PFAS Replacement
Executive Summary Polyethylene-, polyvinylidene chloride-, and per- and polyfluoroalkyl substances (PFAS) -coated paper is used in applications requiring barrier properties such as grease and water resistance. However, the use of these chemicals present environmental challenges and make the coated paper difficult to recycle or compost. Researchers...
Published: 7/5/2024
|
Inventor(s):
Muhammad Rabnawaz
,
Hazem Elkholy
,
Syeda Shamila Hamdani
Keywords(s):
Category(s):
Environmental
,
Materials
,
Packaging
Process to Upcycle Mixed Polyolefins
Executive Summary Polyolefins are used in a myriad of applications including packaging. Increasingly, there is a growing need for identifying ways of recycling mixed polyolefins that appear in municipal waste streams as the polyolefins are not compostable or biodegradable. While methods such as pyrolysis have been used to transform the plastic mixtures...
Published: 6/10/2024
|
Inventor(s):
Muhammad Rabnawaz
,
Laurent Matuana
,
Tanyaradzwa Muzata
Keywords(s):
Category(s):
Environment
,
Materials
,
Packaging
,
Recycling
Biobased Films with Improved Oxygen Barrier
Executive Summary Biobased
materials
such as polybutylene adipate terephthalate (PBAT), polyglycolic acid (PGA) and polybutylene succinate (PBS) are attractive materials for packaging films due to their positive sustainability aspects including biodegradability. However, their oxygen barrier properties limit the use of these materials to certain applications....
Published: 4/30/2024
|
Inventor(s):
Muhammad Rabnawaz
,
Mohamed Abdelwahab
Keywords(s):
Category(s):
Environment
,
Materials
,
Packaging
,
Recycling
Biodegradable Barrier Coating for Paper
Executive Summary Coated paper is used in a variety of packaging applications including fresh produce, cheeses, confectionary, frozen fish and fast food. To achieve sufficient barrier properties, the paper is often coated with petroleum based waxes or polyfluorinated substances (PFAS). However, these coatings are not environmentally attractive and...
Published: 4/30/2024
|
Inventor(s):
Muhammad Rabnawaz
,
Hazem Elkholy
,
Syeda Shamila Hamdani
Keywords(s):
Category(s):
Environment
,
Materials
,
Packaging
,
Recycling
Topologically Controlled Composite
Materials
with High Energy Absorption Capability
Executive Summary Composite
materials
are a well-established technology in applications requiring high-performance such as sports, aerospace, or defense. However, conventional fiber reinforced composites are prone to severe delamination, cracking, and fiber breakage upon projectile impact. This lack of toughness is a critical limitation on the possible...
Published: 11/22/2023
|
Inventor(s):
Dahsin Liu
,
Peter Schulz
Keywords(s):
Composite
Materials
,
Fiber Composite
,
Fiber Reinforced
,
Impact Resistant
Category(s):
Materials
Machining Lubricant Containing Exfoliated Graphite
Executive Summary Machining processes in high production environment usually adopt flood cooling with water-based lubricants and various chemicals. In order to minimize the lubricant use and waste (which also eliminate centralized pumping stations), minimum quantity lubrication (MQL) techniques have been adopted, which generate mist of oil droplets....
Published: 6/16/2023
|
Inventor(s):
Patrick Kwon
,
Lawrence Drzal
Keywords(s):
Category(s):
Nanotechnology
,
Chemicals
,
Materials
Sustainable Chain Extenders for Recycling Polyesters
Executive Summary Polyesters comprise a significant portion of plastics entering landfills. One issue that limits their recycling is degradation during melt processing which lowers their molecular weight and melt viscosity. Reactive chain extenders are often used in this case to build back the molecular weight of the polyester during reprocessing....
Published: 7/22/2024
|
Inventor(s):
Muhammad Rabnawaz
,
Mohamed Abdelwahab
,
Ajmir Khan
Keywords(s):
Category(s):
Materials
,
Environment
,
Packaging
Process for Depolymerizing Recycled Polystyrenes
Executive Summary Each year, billions of lbs of polystyrene and styrene copolymers are discarded as waste and very little is recycled. While some technologies have attempted pyrolysis in fluidized bed reactors or solvent processes to convert the polystyrene back to monomer, high costs, long process times and a myriad of reaction products have...
Published: 7/11/2023
|
Inventor(s):
Muhammad Rabnawaz
,
Ajmir Khan
,
Vikash Kumar
Keywords(s):
Category(s):
Chemicals
,
Environment
,
Materials
Rapid Process for Depolymerizing Recycled PET
Executive Summary Each year, billions of lbs of polyethylene terephthalate (PET) and polyethylene terephthalate glycol (PETG) are discarded as waste. While some of the material is separated, recycled and incorporated into new
materials
, the degradation of the polymers back to their original monomers (a.k.a. chemical recycling) remains prohibitive...
Published: 2/17/2023
|
Inventor(s):
Muhammad Rabnawaz
,
Ajmir Khan
Keywords(s):
Category(s):
Chemicals
,
Environment
,
Materials
Degradable Unimolecular Nanoparticles
Executive Summary Biodegradable polymers are useful as drug delivery agents. MSU researchers have developed a poly(glycolide) based polymer that forms unimolecular micelles with diameters less than 50 nm. These nanoparticles contain functional groups which provide anchoring sites for drugs, contrast agents or other biological agents. Description...
Published: 7/8/2024
|
Inventor(s):
Gregory Baker
,
Erin Vogel
,
Milton Smith, III
Keywords(s):
Category(s):
Chemicals
,
Materials
,
Pharmaceutical
,
Nanotechnology
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