**2. Recycling of composite materials**

The recycling of materials organic macromolecular surgery is more complicated than with traditional materials (glass, paper, metal), because there is an impressive variety of polymers, which in most cases are not compatible with each other, in the event of a global recycling [28–30].

For the recycling of polymeric materials there are several solutions:


From the view point of recycling, waste can be classified as:


The recycling after separation of mixtures is a much more interesting because you have to drive theoretically product with performance very close to the base polymeric materials. In practice, the properties of recycled materials approaching initial properties of the base material, unless methods are very effective waste sorting and waste have undergone significant degradation during operation.

For the same purpose, for the production of alternative materials it is known the manufacturing process of reinforced mortars used in construction [26, 27]. These mortars include besides sand, whitewash, cement, gypsum and various reinforcement materials, such as: hemp fiber,

The disadvantages of these processes are the high time of plates obtaining and their reduced mechanical characteristics. Other disadvantages of the plates obtained by these processes are the high density of the material and the degradation in time under the influence of external

Reinforced materials and manufacturing procedures have a significant influence on the quality, productivity and competitiveness of composite structures. The interface between matrixreinforced materials plays an essential part in the mechanical behavior and fabrication of

The recycling of materials organic macromolecular surgery is more complicated than with traditional materials (glass, paper, metal), because there is an impressive variety of polymers, which in most cases are not compatible with each other, in the event of a global recycling

• The separation of the constituents of mixtures in order to recycling of each individual

• The direct transformation of the mixture without prior sorting, in order to reduce the vol-

• Manufacturing waste (10% of total waste) mainly formed of a single material. Because they are not contaminated (or less purified) with other materials, recycling is easier. Typically,

• Waste easily separable. They consist of 1–2 or more polymers (mix macroscopic scale) otherwise contaminated materials (fillers). These materials are, at least theoretically separable. • Microscopic mixtures or intimately connected (soldered, interpenetration). This is the case most difficult to treat because the separation of constituents is difficult or even impossible, requiring complicated operations. In this category fits very well with organic matrix composites. The most representative example is the waste from the automotive industry. In this case, the blend will find materials (resins) thermoplastic, polymer mix, fibers, fillers

• Materials of the recycling, currently applies in particular to the first two categories

glass fiber, etc.

composite materials.

[28–30].

component;

ume of waste.

mentioned.

factors: humidity, sun, UV radiation.

106 Product Lifecycle Management - Terminology and Applications

**2. Recycling of composite materials**

For the recycling of polymeric materials there are several solutions:

From the view point of recycling, waste can be classified as:

these wastes are reintroduced into production lines.

and multilayer composite materials.

Sorting of waste is done according to the basic polymeric material. The sequence of operations mainly comprises the following steps:

Shredding. At this stage, the materials must be recovered shrinks size to be easily transported and handled.

Separation of metals is well-established methods, obviating the mixture all existing metal fragments (e.g. electromagnetic methods).


By materializing the proposed project creates prerequisites for achieving scientific and technological results, competitive at European level in order to increase the visibility of Romanian research, especially to subsequently transfer the results in socio-economic practice.

The resolving of proposed assignment will lead to the development of science-based knowledge of the manufacturing processes of parts of polymeric composite materials reinforced with biodegradable waste. The aim is to achieve a topic fundamental research, advanced to develop methods and technologies for recycling polymer composite materials and develop new recipes using biodegradable waste. It thus aims to improve the quality, productivity and competitiveness of industrial products. This is possible by using a multidisciplinary approach to research that brings together knowledge of chemistry, mathematics, physics, rheology and technological engineering.
