Jiangsu Lianguan Science&Technology Development Co., Ltd.

Plastic recycling by the plastic recycling line is the process of restoring scrap or waste plastics and reprocessing the material into useful products, sometimes completely different from his original state. For example, it could mean the merger of the soft-drink bottles after casting and plastic chairs and tables. Typically, a recycled plastic is not in the same type of plastic and recycled plastic is often recycled.
Compared with other materials such as glass and metal, plastic polymers require greater processing for recycling. [Edit Plastics] have a low entropy of the mixture, which is due to the high molecular chains of polymers by weight. A macromolecule interacts with its environment along its entire length so that its enthalpy of mixing is large compared to that of an organic molecule with a similar structure. Heating alone is not sufficient to resolve a larger molecule, because of this, plastics must often have almost identical composition to mix effectively.

Waste plastics or polymers with synthetic substances pose an environmental problem due to problems associated with the disposal are: a large quantity of non-biodegradable. Due to limitations in the capacity of landfills, is the future of recycling or degradation is a necessity. Direct recycling back to the manufacturing sector is not always possible because of the plastic waste is often mixed in the nature of the polymer and the separation is not viable. Economic considerations for the treatment of plastic waste often require the use of mixed plastic waste without segregation. Recycling of plastics byplastic recycling line from the manufacture of thermoplastic synthetic fibers. Rejected parts, registered and flash operations represented precious materials were crushed and recycled with virgin material.
This process was repeated several times to sharpen the established power remains low. As plastic waste by the industry was clean and not contaminated with other plastics reprocessing industry continues to grow, provided that the price of virgin plastic is still high. After 1960, lower prices, profit margins have been squeezed for waste plastic and waste instead of reprocessing more frequently.

When different types of melted plastic, they tend to separate provision, such as oil and water, and put in these layers. The phase boundaries cause structural weakness of the resulting material, so that the polymer blends means of limited use for recycling applications.Another obstacle is the widespread use of dyes, additives and other additives in plastics. The polymer is generally too viscous to economically remove fillers, and are used by many processes that could cheaply remove the added dyes affected. Additives are used less frequently in beverage cans and plastic bags, so they use more recycled frequently.The of biodegradable plastics is increasing. If these products are mixed in the plastic recycling line , plastics are not recycled are recovered, since different properties and melting temperatures.
After 1970, prices rose again in plastic, because the OPEC to increase oil prices and raw material recycling practices again increased. The increased interest not only in the recovery process of plastic waste, such as the assessment for chemicals, and fuels, but also the necessary step of the separation of plastics from other waste. An examination of this story at the beginning of the recycling of plastics is given by RJ Ehrig plastic recycling, Oxford University Press, NY, 1992, hereinafter, Ehrig (1992). Some plants are in operation at the beginning of the recycled plastic contains a power station by the department in LaPorte, Texas, funded with a fluidized bed of sand and was designed for 17 million pounds per year of polypropylene atactic. It ran from 1980 to 82 In 1984, Ebenhausen, Germany, 20 million pounds per year for the use of plants with molten salt, fluidized bed reactor for the treatment of waste plastics and tires.
In all cases in relation to the economy if these systems operate continuously. Since 1985, plastic recycling machinery has become concern profitable growth because of the engineering plastics and continue growing environmental problems, however, remain a major impact on costs due to high temperatures than previously required.



 

source:LG-machine blog|plastic recycling line