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Market Analysis: Recent Progress in PE Plastic Granulator

With the advancement of the catalyst technology, there has been a technique for producing spherical PE resins directly from the polymerization vessel without further granulation. Direct production without granulation resin, not only can save a lot of energy consumption of the extrusion granulation and other steps, and from the reactor to get low-crystalline products do not occur morphological changes, which will help shorten the processing cycle, saving processing energy. The process uses PE catalyst loaded on MgCl2 to produce PE spherical particles with density of 0.890-0.970g / cm3 directly from the reactor. The products include LDPE, LLDPE and HDPE, and even produce VLDPE without reducing the production capacity of the device. And ULDPE. As a result of the granulation process, the device investment can be reduced by 20%. The process combines the slurry prepolymerization technique with a gas-phase fluidized bed process, which is carried out in a small loop reactor and then the prepolymer is continuously passed through one or two short residence time gas phase fluidized beds, two The gas phase fluidized bed can be controlled and maintained completely independent of the gas composition, temperature and pressure can be independently controlled, to achieve greater flexibility in product design.

The core of the manufacturing process is its catalyst technology. The spherical titanium catalyst used in this technology shows the characteristics of the three-dimensional space in the physical and chemical structures, which can control the physical and chemical properties of the carrier itself and control the distribution of the active center on the carrier. The principle is that by controlling the porosity of the carrier, the active center is preferentially distributed on the surface, so that the diffusion ability of the monomer is limited, so that the polymer particles can be obtained in the process of polymerization, and the particles themselves become one Reactors, the introduction of other monomers therein, can be polymerized or copolymerized under the active center of the hollow particles to produce a highly homogeneous polymerized blend or polymer alloy. The use of different monomer formulations, can be homopolymers, copolymers, elastomers and other functional polymers.

The use of plastic particles, the first collection of waste plastics; and then classification, classification, including classification and classification of color; after that is to the mill, the crushing, cleaning; crushing and cleaning, to the extruder to squeeze , Extruded into strips, and then cut into particles; particles cut into, is to do the raw materials of plastic products.

After the handling of this equipment, the original unsightly waste plastic immediately turned into a colorful plastic particles. These recycled plastic particles still have a good performance of the composite material to meet the blown film, drawing, drawing pipe, casting, extrusion and other technical requirements, a large number of applications in the production of plastic products. After further processing of plastic products business, they have become our common plastic pots, folders, plastic film, industrial and agricultural machinery parts and so on. These products use a wide range, become the darling of the market.

Production of  plastic granulator, less investment, small scale, will not form a secondary pollution, is in line with the needs of the community industry. The promotion of plastic granulator, so that waste plastics become an important resource. There is less plastic waste everywhere, and the incomes of the processors are increased.

The price of recycled plastic, only 50% of the new plastic, has a great competitive advantage. Since 2000, China’s annual imports of waste plastics from abroad 2 million tons, and an annual increase of 10% rate. But in China, only in 2004 to 11 million tons of waste plastics, the vast majority have not been used, and the new plastic raw materials are still a steady stream of put into use. Can be seen, waste plastic recycling market is broad.

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