ISSN:
0193-7197
Schlagwort(e):
Chemistry
;
Chemical Engineering
Quelle:
Wiley InterScience Backfile Collection 1832-2000
Thema:
Maschinenbau
,
Werkstoffwissenschaften, Fertigungsverfahren, Fertigung
Notizen:
Rigid poly(vinyl chloride) was reinforced with 10 to 40 phr of 1/4-inch glass fiber. This improved flexural modulus up to 140 percent, flexural strength 40 percent, and heat-deflection temperature 8°C; and reduced creep by 90-95 percent, and the coefficient of thermal expansion by 50 percent. Thus a typical Type I rigid vinyl with glass reinforcement had flexural modulus 1,164,000 psi, flexural strength 16,500 psi, notched Izod impact strength 5.1 fpi; creep only 12 percent of normal unreinforced material, coefficient of thermal expansion only 50 percent of normal unreinforced material, and heat-deflection temperature 79°C. Such balance of properties elevates rigid vinyl from a commodity plastic up to an engineering thermoplastic, capable of much wider and more economical utilization in high-performance applications.
Zusätzliches Material:
7 Tab.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1002/vnl.730060108
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