Composite Plastic, definition

We have defined the composite nonwoven sector broadly to encompass the general composite plastic sector plus mixed and hybrid nonwoven processes, and coated and laminated nonwoven materials. This definition encompasses ... 

This stable compd was found to be suitable for prepn of esters and resinous compositions for plastics, or it could be nitrated for conversion into a stable explosive of definite composition, which.is described here under Dipentaerythritol Hexanitrate... 

We shall conclude with some remarks on the structure of glassy polymers. If one frequently speaks of glass structures, this does not mean that there exists one definite glass structure similar to a crystal. In a macromolecular solid-e.g., the polystyrene-plasticizer system, entirely different glasses are obtainable, the macroscopic composition of which is always the same (8). In Figure 10 the full... 

These glasses differ macroscopically in volume and, therefore, in structure. This mental experiment intends to point out, that correctly speaking, there does not exist a glass of definite structure. A glass of the composition x at the temperature T can be produced in different ways which result in glasses of different structure. The characteristic behavior of the plasticizer in its molecular interaction with the chain molecules determines structure and macroscopic behavior of the glass. 

This definition again invites further comment and elaboration. The implication may be that finishing is begun after a product is shaped by flow , but this is not always the case and the surfaces of many products are finished in part while compositions are hot or warm still. It mentions as examples six techniques for finishing but the Standard itself includes many more than this and it is worth remembering too that intermediates such as film, sheet, and mouldings (which require further fabrication before they become plastic products ) also must be finished satisfactorily the properties of the surface of an intermediate can be essential in obtaining the results required in the ultimate product. 

In this review, RPs are considered to be combinations of materials differing in composition or form on a macro scale. But all of the constituents in the plastic composite retain their identities and do not dissolve or otherwise completely merge into each other. This definition is not entirely precise. It includes some materials often not considered to be composites. Furthermore, some combinations may be thought of as composite structures rather than composite materials. The dividing line is not sharp and differences of opinion do exist. Regardless the name composite literally identifies thousands of different combinations with very few that include the use of plastics. In using the term composites when plastics are involved the more appropriate term is plastic composites or just RP. 

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