Polymers organic fillers

Figure 5. Physical and mechanical properties of PCM on the basis of PVS (monoaxial deformation 100 mm/min). Content of inorganic filler, weight in % 1-0 % 2-10 % 3-20 % 4-50 % ratiot of organic filler, weight in % 5-20 % 6 - a parity of polymer, organic filler and inorganic filler in three component PCM is 1 1 1.

Figure 8. Physical and mechanical properties of three component PCM on the basis of PA. Content of polymer/organic filler/inorganic filler, weight in mass. % 1 - 50/10/40 2 - 50/20/30 3 - 50/25/25 4 -50/40/10.

U.S. Pat. No. 7,022,751 [111] describes a fiber-reinforced composite plastic material comprising thermoplastic polymers such as HDPE, LDPE, polypropylene, PVC, and polystyrene a high melting point waste polymer fiber material such as polyethylene terephthalate and nylon, an inorganic filler, such as glass and other material, and an organic filler such as wood or particles of a thermoset plastic, such as rubber and polyurethane foam. 

The filler then contributes to reinforcement, thixotropy, and bulk. Since most of the fillers are mineral-like inorganic materials, they generally don t add or detract from the intrinsic silicone properties for which the sealants are most often sold, such as good electrical insulating properties, weather resistance, heat stability and low temperature serviceability. Organic fillers (polymers, resins, rubbers) have been added to some silicones and indeed enhance certain properties or reduce cost but always at the expense of another property. The property most often sacrificed is thermal stability. 

Polymer nanocomposites are combinations of polymers containing inorganic or organic fillers of definite geometries (fibres, flakes, spheres, particulates and so on). The use of fillers, which have one dimension on the nanometre scale, enables the production of polymer nanocomposites. Functional nanocomposites with specific properties can be custom-made by combining metal nanoparticles (MNP) into the polymer matrix. 

Inorganic ash from burning polymers to separate the organic polymer from fillers can be identified by infrared spectroscopy. The technique of infrared spectroscopy has been described previously in this chapter. The bands characteristic to inorganic fillers are shown in Table 5.9. 

Polymer nanocomposites based on the incorporation of inorganic or organic filler have attracted considerable attention not only from researchers but also from polymer producers [258 260]. Nanocomposites of polypropylene have been prepared by in situ polymerization or... 

Consequently, in respect of its influence on the relaxation processes in polymer matrix, filler modified with long organic chains should be considered as a component combining the functions of filler and plasticizer. 

Crystallites may also be considered to act as reinforcing fillers. For example, the rubbery modulus of poly(vinyl chloride) was shown by lobst and Manson (1970,1972,1974) to be increased by an increase in crystallinity calculated moduli in the rubbery state agreed well with values predicted by equation (12.9). Halpin and Kardos (1972) have recently applied Tsai-Halpin composite theory to crystalline polymers with considerable success, and Kardos et al (1972) have used in situ crystallization of an organic filler to prepare and characterize a model composite system. More recently, the concept of so-called molecular composites —based on highly crystalline polymeric fibers arranged in a matrix of the same polymer—has stimulated a high level of experimental and theoretical interest (Halpin, 1975 Linden-meyer, 1975). 

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