By Laurence W. McKeen
ISBN-10: 0323310168
ISBN-13: 9780323310161
This reference consultant brings jointly a variety of severe facts at the impression of temperature on plastics and elastomers, allowing engineers to make optimum fabric offerings and layout judgements. the results of humidity point and pressure expense on mechanical and electric homes also are coated. the knowledge are supported through motives of the way to use the information in genuine international engineering contexts. excessive (and low) temperatures could have an important effect on plastics processing and purposes, quite in industries akin to car, aerospace, oil and gasoline, packaging, and clinical units, the place metals are more and more being changed by means of plastics. extra plastics have additionally been integrated for polyesters, polyamides and others the place to be had, together with polyolefins, elastomers and fluoropolymers. totally new sections on biodegradable polymers and thermosets were extra to the e-book. the extent of knowledge integrated - besides the massive variety of graphs and tables for simple comparability - saves readers the necessity to touch providers, and the choice advisor has been totally up-to-date, giving help on the questions which engineers can be asking while specifying fabrics for any given software.
- Trustworthy, present thermal information and top perform information for engineers and fabrics scientists within the plastics industry
- More than 1,000 graphs and tables let for simple comparability among plastics
- Entirely new sections additional on biopolymers and thermosets.
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Extra resources for Effect of Temperature and Other Factors on Plastics and Elastomers
Example text
Strain for Styrolution Novodur® P2H-AT—standard impact, easy flow, high gloss, antistatic ABS resin. 10 Tensile stress vs. strain for Styrolution Novodur® P3H-AT—improved chemical resistance, high gloss, antistatic ABS resin. 11 Tensile stress vs. strain for BASF Terluran® GP22—general purpose ABS resin. 12 Tensile stress vs. strain for BASF Terluran® HH106—high heat, high impact ABS resin. 13 Tensile stress vs. strain for BASF Terluran® HI10—high impact ABS resin. 14 Tensile stress vs. strain for Styron Magnumt 1040—high impact automotive ABS resin.
The method is given in ASTM D1238 and ISO 1133. 33. 12. 34 Tg estimate from an elastic modulus vs. temperature study. high that the polymers in the plastic decompose. The melt flow rate is an indirect measure of molecular weight with high melt flow rate corresponding to low molecular weight. Synonyms of melt flow index are melt flow rate and melt index, which are commonly abbreviated as MFI, MFR, and MI. 4 Glass Transition Temperature (Tg) The glass transition temperature, often called Tg (or “T sub g”), is an important property when considering polymers for a particular end use.
While this approach is not commonly used, as there are better methods, it does demonstrate one way in which a plastic’s physical properties change above and below Tg. A more common mechanical method is dynamic mechanical thermal analysis (DMTA). DMTA is also called dynamic mechanical analysis (DMA) or dynamic thermomechanical analysis. An oscillating force is applied to a sample of material and the resulting displacement of the sample is measured. From this the stiffness of the sample can be determined, and the sample modulus can be calculated.
Effect of Temperature and Other Factors on Plastics and Elastomers by Laurence W. McKeen
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