Plastics are making a growing contribution to sustainable development. For example, over an expected lifetime of 50 years, the use of window frames and insulating materials made of plastic in buildings save many times the energy required to manufacture them. Plastics for packaging purposes provide protection against damage and dirt contamination, thereby saving considerable amounts of material ...

Sunscreens play a fundamental role in skin cancer prevention and in protection against photo-aging. UV filters are often photo-unstable, especially in relation to their vehicles and, being lipophilic substances, they are able to interact with plastic packaging. Finally, UV filter stability can be significantly affected by the routine use of the product at high temperatures. This work aims to st...

This chapter describes the fundamentals of the processes used by National Semiconductor to assemble IC devices in electronic packages. Electronic packaging provides the interconnection from the IC to the printed circuit board (PCB). Another function is to provide the desired mechanical and environmental protection to ensure reliability and performance. Three fundamental assembly flow processes ...

Suffolk County, NY, on March 29 passed a law banning the use of plastic grocery bags and other plastic food containers starting in July, 1989. The law forbids the use of polystyrene foam (PS foam) and polyvinyl chloride (PVC) for food packaging in restaurants, bars, delis, roadside stands, grocery stores, and other retail food establishments. PS foam is used in coffee cups, egg cartons and meat...

OBJECTIVES To study the migration of melamine into foods from plastic food packaging materials and dairy product containers commonly used in China. METHODS 37 samples were collected from the market. The EU migration testing conditions were adopted with distilled water, 3% acetic acid, n-hexane and 15% ethanol being chosen as the simulating solutions. The HPLC method was used to detect melamin...

Aluminium foil is widely accepted as being one of the best barrier materials in flexible packaging, even in the face of many new and up-and-coming high-barrier plastic layer combinations, copolymers, blends or nano-composites. Besides high thermal conductivity, which facilitates enhanced converting and sealing performance, other key criteria that distinguish “converter foil” from competing mate...

bananas are climacteric fruits and controlling ripening is effective in reducing loss. this experiment studied the effect of packaging (plastic bag, edible wax and plastic bag, plastic bag and 2 or 4 g/kg potassium permanganate) over 5 weeks of cold storage on the quality and characteristics of cavendish cultivar bananas. the samples were removed from storage at 8, 16, 24, 32 and 40 days and fr...