The raw material for plastic products

The raw material for plastic products, petroleum, natural gas and coal as a carbon source. The starting material is now part of the pyrolysis recycling plants are used: The name of the plastic is a generic term for synthetic or natural product produced by the conversion of macromolecular materials. These macromolecules consist of individual, chemically linked to each other building blocks of molecules, called monomers. With a series of monomers are called polymers. In this case, a single polymer chain is formed of thousands of monomers. Plastics can be composed of linear molecules, branched or cross-linked. Linear and branched macromolecules that no network should be moved by using heat. The molecules can slide to one another, that is material to flow and form. Therefore, the polymer material known as thermoplastic. The longer the molecular chain of plastic material, the higher is its strength properties. Thermoplastic properties ranging from soft to hard, difficult or hard and brittle. For elastomers, the macromolecule is a weak network. They are at room temperature before the chain due to their high mobility in the rubber state. Elastomers are not meltable and insoluble. Plastic with a strong spatial cross-linked chains of molecules known as thermosets. They act hard and brittle at room temperature. They are insoluble and infusible, and elastomers. There's also called a thermoplastic elastomer (TPE), the rubber-like material that can melt, however. They are made of thermoplastic materials such as thread-like molecule. In the thermoplastic elastomer, a molecule such as a thread but has segments of individual molecules, which have a strong attraction for one another that they act like a network. There is one main difference between thermoplastics and thermosets and elastomers associated with the process. Thermoplastic melts, processed, and then cooled. Thermosets and elastomers are processed cold and then heated, resulting in (heal) crosslinking of plastic. When Duromerverarbeitung should always be reworked, because the parts can not be formed without form. In the case of thermoplastics, the difference is still between the thermoplastic amorphous and semi-crystalline. This refers to how the thread-like molecules that are stored after cooling. If they are present in the network is completely random, they are called amorphous thermoplastics. The properties of amorphous thermoplastics • can form regular structures because they do not close the packaging. • If you are in a condition such as wipes or cotton balls • in the state of transparent colorless • lower shrinkage than semi-crystalline thermoplastics. translate fr: KraussMaffei Kunstsofftechnick