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Effect of Board Density Specific Gravity on Water Absorption

EFFECT OF CELLULOSE CONTENT IN COMPOSITE MATERIALS ON WATER ABSORPTION [Pg.403]

Obviously, the higher the cellulose content in a WPC material, the higher is the water absorption, unless each cellulose particle is fully encapsulated in the plastic and inaccessible to water. Indeed, water absorption typically shows an almost linear increase with the increase in cellulose fraction in the composite. For example, with cellulose content in LDPE-based composite material of 10, 20, 30, 40, and 50%, the equilibrium (as authors of the study believed) water absorption after 20-30 days was equal to 1, 4, 6, 9, and 12% (w/w), respectively [7]. [Pg.403]

Another typical study [8] showed that in wood (aspen)-plastic (polypropylene) composite the increase in wood fraction—0, 30, 40, 50, and 60%—led to the increase in water absorption as 0,2,5,7,9, and 11%, respectively, after 10 weeks of submersion under water. Moisture content at 90% relative humidity had increased in the same direction. [Pg.403]

A similar study was conducted using wood-LDPE composite material with wood content of 20, 30, 40, 50, 60, 70, and 80%. Water absorption followed a practically linear dependence, from 5 to 40% (w/w) after a certain time period [9], [Pg.403]

It is a quite a common knowledge in WPCs that the higher the cellulose content in the composite, the higher the water absorption. [Pg.403]


EFFECT OF BOARD DENSITY(SPECIFIC GRAVITY) ON WATER ABSORPTION... [Pg.403]




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Absorption effective

Absorption of water

Density effect

Density of water

Density specific

Effect of density

Effect of water

Effect on Water Absorption

Gravity effective

Gravity effects

On-boarding

Specific absorption

Specific effects

Specific gravity

Specific gravity effect

Specific gravity of water

Specification effective

Water absorption

Water absorptiveness

Water density

Water specific gravity

Water specifications

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