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Table 3 Effects of PET content on composite properties

From: Flat-pressed wood plastic composites from sawdust and recycled polyethylene terephthalate (PET): physical and mechanical properties

Items

Regression equation

Regression coefficient (R2)

Density (Kg/m 3 )

y = 6.321x +662.1

0.82

MC (%)

y = −0.40x + 3.367

0.865

WA (%) at 25°C

y = −0.518x + 43.67

0.926

WA (%) at 50°C

y = −0.488x +49.81

0.824

WA (%) at 75°C

y = −0.547x + 56.53

0.693

TS (%) at 25°C

y = −0.129x + 13.81

0.821

TS (%) at 50°C

y = −0.141x + 15.24

0.854

TS (%) at 75°C

y = −0.161x + 16.98

0.908

MOE (N/mm 2 )

y = 18.86x + 917.4

0.863

MOR (N/mm 2 )

y = 0.545x - 5.469

0.751

  1. Significance level α = 0.05; y = Properties of SD-PET composites, x = PET content.
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