article thumbnail

Researchers advance concept of “4-D” printing technology using shape memory polymer fibers

Green Car Congress

Researchers at the University of Colorado Boulder and Singapore University of Technology and Design have added a “fourth dimension” to additive manufacturing technology, opening up possibilities for the creation and use of adaptive, composite materials in manufacturing, packaging and biomedical applications. A team led by H.

Polymer 246
article thumbnail

Self-healing polymer wrapper enables longer cycle life in silicon anodes for Li-ion batteries

Green Car Congress

Top: The stress of repeated swelling and shrinking shatters a conventional silicon electrode and its polymer binding. Bottom: An electrode coated with stretchy, self-healing polymer remains intact. (C. To make the self-healing coating, the scientists deliberately weakened some of the chemical bonds within polymers. Wang et al.,

Li-ion 230
article thumbnail

EPA announces winners of the 2013 Presidential Green Chemistry Challenge Awards

Green Car Congress

The US Environmental Protection Agency (EPA) announced the winners of the 2013 Presidential Green Chemistry Challenge Awards. In the academic category, Professor Richard Wool, University of Delaware, Newark, Del. The new process prevents about 1.5 million pounds of hazardous waste a year.

EPA 271
article thumbnail

Alkaline surfactant polymer flooding shown to improve recovery in very mature oilfield by more than 300%

Green Car Congress

The US Department of Energy (DOE) announced that the use of an alkaline surfactant polymer (ASP) flooding technique has successfully improved oil recovery at a 106-year old Illinois field by more than 300%. Polymer is added to protect the chemical slug from early dissipation by the driving water phase. Such surfactants, when.

Polymer 218
article thumbnail

UC Davis team engineers cyanobacterium for enhanced direct production of 2,3-butanediol; design methods for exogenous chemical production

Green Car Congress

2,3BD is a key chemical building block used to make polymers, plastics and hydrocarbon fuels; it can be readily converted to intermediaries such as butenes, butadiene and methyl ethyl ketone that are used in the production of hydrocarbon fuels and a variety of chemicals including polymers, synthetic rubbers, plastics and textiles.

Davis 252
article thumbnail

Ford first automaker to use captured CO2 to develop foam and plastic for vehicles

Green Car Congress

Ford began working with several companies, suppliers and universities in 2013 to find applications for captured CO 2. Novomer is commercializing a proprietary catalyst system that transforms waste CO 2 into high performance, low-cost polymers for a variety of applications, including foam and plastic that are easily recyclable.

Ford 150
article thumbnail

Goodenough perspective on Li-ion batteries; in transportation, PHEVs for the near-term, longer term requires new electrochemical strategies

Green Car Congress

John Goodenough at the University of Texas at Austin and colleague Kyu-Sung Park have written a perspective paper on Li-ion batteries (LIBs), published in the Journal of the American Chemical Society. More recently, at the University of Texas, Austin, Dr. Goodenough patented a new class of iron phosphate materials. Earlier post.).

Li-ion 262