Identification of plastics by thermal analysis and infrared spectroscopy Cesap and Perkin Elmer organised a joint seminar to demonstrate how to use thermal analysis and IV spectroscopy methods. Cesap provided mainly the application know-how and Perkin Elmer the instrumentation background. Such training is in great demand from blend manufacturers, processors and end users.
Polymers have been used in the production of foams since their first appearance. However, foaming has become particularly popular recently because it can save raw materials, reduce the weight of the product and give it special properties. In the following, new production processes for expanded foams and microcellular injection moulded parts are presented.
The need has arisen mainly from the trade, as transport distances have increased and transport costs can only be reduced by rational flight organisation, which increases transport time. For the consumer, the main attraction of food, apart from its nutritional value, is its taste and flavour. The main cause of food spoilage is oxygen in the air, which triggers undesirable oxidative processes.
The use of thermoplastics in car headlamps When developing headlamps, designers are trying to meet two conflicting requirements: greater road safety and reduced material consumption (aerodynamic design, space-saving solutions). This has led to the development of two new basic types of headlamps, projective (ellipsoidal or polyellipsoidal) and free-form flat reflectors, in addition to the previously dominant parabolic reflector, which is both optically and space-saving. Among the light sources, halogen lamps have been joined by gas-discharge lamps, which emit more light in the visible range and cause less heat in the structural components of the headlamp.
As plastics started to be used more and more for devices traditionally made of metal, glass or ceramics, there was a growing demand for plastics with special properties, e.g. with properties that could not be achieved with conventional plastics, such as - good magnetisability, - electromagnetic shielding, - electrical conductivity, - increased thermal conductivity, - high density, - special mechanical properties (e.g. high strength), - high acoustic damping.
Foil crops in Spain Spain is the largest user of agricultural foil in Europe: almost 50 E ha are covered by foil covered greenhouses, more than 13 E ha are covered by foil tents and more than 115 E ha are covered by mulch. The plastics used in Spanish agriculture are 41% of foil, 35% of pipe and pipe ties, 10% of rope and twine, 6% of water tank or waterproofing material, 4% of hose, 4% of netting. Agricultural plastics 39% are PE-LD, 28% are PVC, 11% are PE-LLD, 8% are PE-HD, 9% are PP, 3% are EVAc, 2% are other plastics.
de; plasteurope.com; student forum; professional outlook. New Internet information source The publishing company Carl Hanser and KI Kunststoff Information have jointly founded Kunststoffweb GmbH, a website www.
Since the early 1990s, research into biopolymers from renewable raw materials (mainly agricultural feedstock) has continued with renewed vigour. The first major successes came in the first years of the third millennium. One after the other, large-scale plants started up alongside pilot plants.
