Felhívjuk kedves partnereink figyelmét,
hogy vágatok elkészítését kizárólag előzetes írásos vagy telefonos megrendelés esetén, meghatározott szállítási határidővel tudjuk vállalni.
Several technologies are now available for the production of self-reinforced polymer systems, mainly based on polypropylene. Their impact resistance and strength can be higher than that of glass fibre reinforced systems, although their modulus is still lower than that of composites containing conventional reinforcing materials. Their market is still small, but more and more companies are seeing the potential to develop such materials and find suitable applications for their products.
Even today, many people still regard thermoanalytical instrumentation as being exclusively applicable to scientific research. The following summary briefly describes the information that can be obtained from these instruments, which demonstrate the usefulness of thermoanalysis in solving industrial problems. Capillary rheometry is a useful tool for optimising injection moulding.
Developed countries can only remain competitive if they enter the market with brand new technologies and products. This is also true for plastics processing. The greatest progress in this area is in injection moulding. Multi-component injection moulding is still a living practice, but its potential is not yet fully exploited. New attempts are being made to combine this technology with other plastic processing or even metal processing techniques.
A few years ago in the USA, vibration of plastic sludge during processing started to be studied using ultrasound and more recently low-frequency mechanical (hydraulic) vibration devices. Researchers from a Chinese university have been heavily involved in this research. We present some of their results.
Recently, the automotive industry in particular has turned its attention to natural fibre reinforced plastic composites. They have been exploring possible fibre types, including so-called exotic fibres. Many are investigating fibre blending techniques and the reinforcing effects that can be achieved.
The wide range of plastics and their diverse processing technologies allow the manufacture of special products that can replace glass in optics and metal in medical technology. In the design of such products, modelling plays an important role in order to meet the product requirements in the shortest possible time and with the least possible effort.
Multilayer bottles are increasingly being used for packaging oxygen-sensitive foods. To ensure a proper gas barrier, expensive materials (low oxygen permeability or adhesion mediator) have to be considered in the layer construction. Pa-lacquer blasting experiments have been carried out to optimise processing parameters by investigating the weakest zone, the weld zone.
LED headlamps, the light source of the future, have entered the automotive industry. Their use can prevent many traffic accidents and also save fuel. The use of LEDs also poses new challenges for the plastics industry in terms of material selection and manufacturing technology.
Polymers are playing an increasingly important role in medical procedures. This is based on the wide range of modification possibilities of polymers, which can even impart special surface properties to implants and medical devices placed in the human body. For medical applications, there are some general aspects of material selection that should be taken into account by plastics processors.
In modern patient care, part of the treatment is entrusted to the patient or their carer, so the patient can be treated in their own home. To achieve this, medicines are supplied in devices that dispense and sometimes control the intake of the medicine. Such devices require extremely tightly controlled plastics. But it may be that patients who need artificial feeding will in future receive their formula in PET bottles similar to soft drink bottles.
Today's colourants include some that not only add colour to the product, but also perform other functions, such as allowing the authenticity of the product to be verified. Other dyes can be made into a solution and - in an „old-fashioned” way - dipped into it to give a durable and special optical effect to the product, even in small batches, at low cost.
In Eastern Europe, the use of plastics in the construction industry is the second largest application after packaging, in line with trends in other regions of the world. The window market is growing at a rate that varies from country to country, but is above the Western European average, and the projections for 2010 are optimistic.
For Group A, mechanical fronts must be made of appropriately certified material. From a technological point of view, this basically means additional operations to comply with the specifications, e.g. the effect of sterilisation, packaging or storage on the tel- production and handling.