Plastics formulations

Titanium dioxide pigment coated with pentaerythritol, trimethylolpropane, or trim ethyl ol eth an e exhibits improved dispersion characteristics when used in paint or plastics formulations. The polyol is generally added at levels of 0.1—0.5% (96). 

Ba(B02)2 H2O, used in flame retardant plastic formulations as a synergist for phosphoms or halogen compounds and as a partial or complete replacement for antimony oxide (see Flame RETARDANTS), is excellent as an afterglow suppressant. The low refractive index of results in greater... 

Accurate analysis of a multicomponent formulated material is quite complicated. Plastic formulations can be mixtures of materials of widely varying concentrations and 5-15 ingredients are not uncommon. Some practical examples are given in Tables 2.3 and 2.8. 

Slip additives act at the surface of a polymer film or article to reduce the friction between it and another surface. In a variety of plastics, such as polyolefins, polystyrene, and polyvinyl chloride, fatty-acid amides are applied as slip additives. Fatty-acid amides, such as oleamide, stearamide, erucamide, and oleyl palmitamide, are added to plastic formulations where they gradually tend to bloom to the surface, imparting useful properties including lubrication, prevention of films sticking together, and reduction of static charge. 

As shown in Table I, the plastic component of MSW has increased dramatically. Past development of synthetic plastic formulations has focused on reducing the photo, chemical, and biological degradation of the plastic polymers. However, the persistence of plastics in the environment as litter, potential marine hazard, and with concern for global carbon cycling 1,6) has focused recent attention on the recycling of plastics or development of new biodegradable plastic formulations. 

Plastics Formulating Compounding 2, No.2, March/April 1996, p.6 COMPOUNDING WITH METALLOCENE PE MAKES NEW OPPORTUNITIES FOR PP Schut J H... 

ISO 16869, 2001. Assessment of the effectiveness of fungistatic compounds in plastics formulations. 

The first experimental plastic formulations were prepared in the same manner as the early DDVP formulations. Typical combinations of ingredients are shown in Table I. The ingredients were mixed thoroughly... 

For plastic formulations the rate of release was slow, and the peak concentrations were not reached until the second month of the experiment, whereas peak concentrations were reached during the first week for granular formulations. Peak concentrations were also much higher in the drums treated with the granules, where values above 0.5 p.p.m. were observed in drums treated at 2.5 p.p.m. The highest concentration observed in the drums treated with the plastic formulation was 0.068 p.p.m. 

In addition to the basic plastics in liquid and bead forms with foaming agents, fillers, additives that include cell controllers and fire-retardants, catalysts, surfactants, styrene monomer, systems that vary viscosity from liquid to paste form, and other additives are used. The gas can be put directly in to the plastic before the plastic solidifies. Reactant chemicals can be put in the plastic formulation that during polymerization will release a gas and produce the foam. 

A mixture of microspheres and the plastic can be formulated into a moldable mass that can then be shaped or pressed into cavities and molds much as molding sand and clay. The properties of the finished hardened or cured mass can then be tailored by a suitable plastic formulation. A mixture of TS polyester plastic and small hollow glass spheres, for example, can create synthetic wood. 

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