Laysan albatross (Phoebastria immutabilis) ingest plastic marine debris of a wide range of shape, sizes and sources. To better characterize this plastic and provide insights regarding its provenance and persistence in the environment, we developed a simple method to classify plastic fragments of unknown origin according to the resin codes used by the Society of Plastics Industry. Known plastics...

• Recycling of polypropylene fibre reinforced concrete was investigated. Three generations recycled aggregate were produced, tested and recycled. The content fibres recovered by recycling embedded in quantified. Results show the benefits using new concrete. Herein, an investigation multi-generational recyclability (PPFRC) performed. parent concretes produced with 0 6 kg/m 3 fibres. After recycl...

The superior oil absorption capacity of recycled polypropylene (PP) fiber and waste tire powder were used to recover spilled engine oil. We used ASTM F726-99 method to evaluate oil adsorbing capability of PP fiber and found it to have a large, rapid oil sorption capacity. However, its lack of elasticity dramatically limited that capacity after repeated use. Tire powder, which absorbs less oil m...

Nanocomposites of isotactic polypropylene (iPP) and date wood fiber were prepared after modification of the host matrix by reactive extrusion grafting of maleic anhydride. Chemical and mechanical treatment of date wood flour (WF) was conducted to obtain nanocrystalline cellulose. Layered silicates (clay) were partially intercalated with date wood fiber, and the modified layered silicate was use...

Disposing of plastic wastes to landfill is becoming undesirable due to legislation pressures, rising costs and the poor biodegradability of commonly used polymers. In addition, incineration meets with strong societal opposition. Therefore, recycling either mechanical or chemical, seems to be the only route of plastic wastes management towards sustainability. Polyolefins, mainly polyethylene (LD...

Youjiang Wang School a/Textile & Fiber Engineering Baik-Soon Cho and Abdul-Hamid Zureick School o/Civil Engineering Georgia Institute a/Technology Atlanta, GA 30332 The U.S. carPet industry consumes about 1.2 million tons of fibers annually and about 70% of the carpet produced is for replacement. The waste generated by the industry and from used carpet is estimated at about 2 million tons per y...