In recent decades, there has been an increased focus on the identification, storage, and treatment of polymer-based plastic materials in cultural heritage collections. While need for preservation plastics audio-visual collections is well established, evidence that unstable are also associated with paper-based This paper investigates whether libraries archives to direct resources towards risks p...

Background. Polyhydroxyalkanoates (PHAs) are storage materials that accumulate by various bacteria as energy and carbon reserve materials. They are biodegradable, environmentally friendly, and also biocompatible bioplastics. Unlike petrochemical-based plastics that take several decades to fully degrade, PHAs can be completely degraded within a year by variety of microorganisms into CO2 and wate...

BACKGROUND Lead stabilizers (e.g., lead sulfate, lead stearate) are common additives in plastics used in electrical devices. In 1997, three plastics compounders at one California company were severely lead-poisoned. METHODS The poisonings were investigated by interviewing the workers, employer, and treating physician and reviewing medical records and environmental monitoring results. In addit...

The improvement in exposure conditions in the Swedish vinyl chloride producing industry is reported. The article comments on the technology and control methods by which the vinyl chloride concentration has been lowered to less than 1 ppm vinyl chloride. Two epidemiological retrospective cohort studies are presently under way on workers in PVC-utilizing industries and in the rubber industry.

Reverte oxo-biodegradable additive masterbatch and bags are not compliant to the criteria stated in AS4736 which is an Australian Standard® Biodegradable plastics—Biodegradable plastics suitable for composting and other microbial treatment documents. Well Plastics UK are in the same opinion as the Oxo-biodegradable Plastics Association that bio-based is the wrong technology (reason is as attach...

The aim of this work was to make biodegradable plastics from renewable resources. Paper-based biodegradable plastics were produced via a sol-gel process by using zinc chloride solution. The optimum conditions were a zinc chloride concentration of 65%, reaction temperature of 70 °C, reaction time of 5 s, aging time of 3 h, and glycerol concentration of 10%. Fourier transform infrared spectroscop...

The goal of this study was to monitor emission of chemicals at a factory where plastics products were fabricated by a new robotic (impregnated tape winding) production process. Stationary and personal air measurements were taken to determine which chemicals were released and at what concentrations. Principal component analyses (PCA) and linear regression were used to determine the emission sour...