Technologies

Materials & Chemicals : Absorbents

Materials & Chemicals Portfolios

Technologies

Superabsorbent, Sustainable Aerogels

UW–Madison researchers have developed organic aerogels with excellent absorbent properties. They are made by combining a water soluble polymer and cellulose nanocrystals/nanofibers (CNFs) derived from biomass. The polymer, such as PVA (polyvinyl alcohol), is cross-linked to form a gel and then water is removed by freeze-drying. The surface of the aerogel is coated with an organosilane, making it highly water repellent and superoleophilic (‘oil loving’).
P140038US02

Sustainable Organic Aerogels for Insulation

UW–Madison researchers have developed hybrid organic aerogels with desirable insulation properties. They are made by combining a water soluble polymer and a carbon nanofiller such as graphene oxide nanosheet with cellulose nanofibrilliated fibers (CNFs) derived from biomass. The organic polymer, such as polyvinyl alcohol (PVA), is cross-linked to form a gel and water is removed by freeze-drying. The surface of the aerogel can by further modified.
P120283US03

Ultrafast Synthesis of Activated Carbon

Researchers at the University of Wisconsin System have developed an ultrafast method for the controlled production of various grades of activated and functionalized carbons. The proposed technology is a method to produce mesoporous carbon. The method is simple and can be rapidly carried out in large scale production with common reagents and processing equipment (heat source, acid and carbon source such as cellulose).
T130012US02

Ultrafast Synthesis of Activated Carbon

Researchers at the University of Wisconsin System have developed an ultrafast method for the controlled production of various grades of activated and functionalized carbons. The proposed technology is a method to produce mesoporous carbon. The method is simple and can be rapidly carried out in large scale production with common reagents and processing equipment (heat source, acid and carbon source such as cellulose).
T130012US02

Protein-Polysaccharide Hybrid Hydrogels

A UW–Madison researcher has developed a biodegradable, hybrid protein-polysaccharide hydrogel capable of absorbing large volumes of water or other liquids, and retaining the liquid in its structure without dissolving. The hydrogel consists of two matrices: an acylated, cross-linked protein matrix and an anionic polysaccharide matrix. The matrices interpenetrate, resulting in a homogeneous hydrogel with superior saline absorption and retention characteristics as compared to hydrogels fabricated solely from protein matrices.

To form the hybrid hydrogel, the polysaccharide matrix can simply be trapped within the protein matrix, or the two matrices can be covalently cross-linked by bridging moieties. The biodegradable nature of this hybrid hydrogel overcomes problems with current, synthetic hydrogels, which are extremely slow to degrade and may be composed of toxic components.
P02135US