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Market driven by plastic with functional filler and special additives
Release time2014-3-22  viewed443
   Plastic used in packing is basically divided into two types: non-reactive (or additives) fillers and active (or functional) filler. Filler has a very wide range of applications in the plastics industry, and the filler current growth rate has exceeded the growth rate of the resin itself. Filler is mainly used for three main types of polymer which (thermoplastics, thermosetting resins and rubber). Packing is a key part of many polymer products; thus filler market is both complex and valuable (value in the European market in 2008 was 2.3 billion euros). Fillers, especially inorganic materials, natural compounds can be obtained either by synthesizing products; and different fillers in terms of price and applications also vary. Non-active filler is mainly used to reduce costs; functional filler to the polymer is a peculiar change in performance. Thus, although there is no completely inactive but can only be used to reduce the cost of plastic packing, but still makes use of fillers plastic compound can handle it all on their own. Requirements for fillers and additives in plastic products depends largely on their own needs, but the impact of market factors, such as the driving force of the class is also important, these factors specifically refers to: (1) expanding food distribution improvements packaging requirements, (2) changes in fire regulations, and (3) the materials used in the automotive and electronic parts industry and other high-temperature environment, and (4) recycling issues.
   All along, the change in the plastics industry of science and technology are constantly promoting the development of the functional filler and special additives. Generally, properties of filled polymer system depends on the particle size of the filler, shape and surface properties and other factors. With few exceptions, to the polymer by adding a certain amount of filler for polymer modification, it may contain fillers phase to form a multi-phase system in a continuous polymer matrix. The mixture obtained has a corresponding unique microscopic or macroscopic structure, and form the corresponding performance. The main reason is the use of fillers for polymers or modified to improve performance, reduce overall costs, improve processing performance or control. The filler can affect almost every polymer properties, such as density, shrinkage, expansion coefficient, conductivity, permeability, mechanical properties and thermal properties, and so on.
   Formulators must first be noted that the major impact of plastics to be obtained, then the amount of filler loading, filler mixture, other additives, and other factors to be adjusted. Often, the choice of filler depends not only on each of its chemical composition also depends on other factors of the particle size, shape and hardness. Solid particles and fibrous material can be used as fillers in plastics to use. Calcium carbonate, kaolin, feldspar, silica, and wollastonite is the most important mineral fillers. Broadly speaking, chopped glass fiber (with matte, continuous roving fabric corresponding) as well as solid glass, polymer beads, glass, metal flash powder, hollow microspheres and carbon nanotubes and other carbon-based materials have also been defined as a filler. Functional filler updated and progress which contain special nano-fillers, the use of these nanomaterials are designed to allow a material having a desired specific properties. In which a given system, one of the important parameters for mechanical properties, electrical properties or optical properties of the material will affect the formation of the filler dispersion. Some physical and chemical factors that can affect the filler dispersion process, these factors include: filler aggregate structure and viscous body, surfactants fillers, chemical interactions between polymer and filler, and any filler to the polymer aggregates permeation behavior.
Silane special additives - to improve filler dispersion
Since the inorganic filler and an organic polymer matrix having a different polarity, the filler in the polymer dispersion by technical challenges.

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