Effect of Accelerated Weathering on the Physical and Mechanical Properties of Natural - Fiber Thermoplastic CompositesUniversity of Wisconsin--Madison, 2002 - 282 pages |
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Page 77
... length of exposure . It is shown that the flexural modulus of Formulation 1 - HDPE is 74 % of published values for this particular resin ( Appendix 5 ) . The variability in unexposed properties was low and probably can be attributed to ...
... length of exposure . It is shown that the flexural modulus of Formulation 1 - HDPE is 74 % of published values for this particular resin ( Appendix 5 ) . The variability in unexposed properties was low and probably can be attributed to ...
Page 81
... length of exposure did not fracture until the deflection became excessive . In these cases , the flexural yield stress was calculated using stress corresponding to 3 % strain . At 1000 h of exposure , Formulation 1 - HDPE specimens ...
... length of exposure did not fracture until the deflection became excessive . In these cases , the flexural yield stress was calculated using stress corresponding to 3 % strain . At 1000 h of exposure , Formulation 1 - HDPE specimens ...
Page 83
... exposure . This crazing propagated surface cracks perpendicular to the mold filling flow ( perpendicular to the specimen length ) . At 1000 h of exposure , these cracks were located sporadically and lowered the strength of only some ...
... exposure . This crazing propagated surface cracks perpendicular to the mold filling flow ( perpendicular to the specimen length ) . At 1000 h of exposure , these cracks were located sporadically and lowered the strength of only some ...
Common terms and phrases
Accelerated Weathering Additives antioxidant ASTM Change in Flexural chromaticity chromophores Coefficient of Variation color change Color Difference AE compatibilizer Composites with 0.25 compression side crystallinity degraded layer Depth of Degradation due to accelerated Effect of Accelerated Effect of Fungicide Effect of UV error bars equal exposed surface Exposure Figure Flexural Modulus flexural properties flexural strength Fungicide Gijsman HDPE 70 HDPE composites HDPE specimens hours of exposure hydroperoxides impact strength injection molded jute Kenaf lignin lignocellulosic materials matrix maximum load mechanical properties modulus for Formulation natural fibers natural weathering orientation outdoor oxidation oxygen Phase photodegradation photooxidation polymer Predicted Flexural Rabek radicals reactions reduced result roof panels show the effects sisal specimens exposed Stabilizer and Accelerated standard deviation strain strength for Formulation stress Table temperature tension side Thermoplastic Composites Total Color Difference unexposed modulus unexposed strength UV stabilizer values with error Visible Depth wavelengths Weathering on Flexural Wood Flour Composites Wood Flour Content