ISSN:
0193-7197
Keywords:
Chemistry
;
Chemical Engineering
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
,
Process Engineering, Biotechnology, Nutrition Technology
Notes:
Recent laboratory and in-production tests have indicated the attractive commercial properties of synthetic magnesium silicate in plastics processing. In addition to its enhancing the flow behavior/materials handling of the base powdered resin, such as PVC, it has also proved to be a valuable, yet inexpensive polymer modifier. This non-abrasive single-component additive has demonstrated clearly its multi-functional capabilities. For example, when compounded (at 0.5 to 1.5 phr) in a standard rigid vinyl formulation, the synthetic magnesium silicate contributed to improved compaction in the extruder feed section, initiated a faster fusion time, reduced melt viscosity, and enhanced thermal stability. Laboratory torque rheometer numbers and ASTM D 4440 Rheometrics Dynamic Spectrometer viscoelastic behavior is included along with typical extrusion and physical property test data. The significance of the co-stabilization was complemented by the enhancement of physical properties, reduction of the necessary amount of lubricant, and did not affect sample color and appearance.
Additional Material:
1 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/vnl.730080307
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