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Sempere Alemany, Francisco Javier.pdf - RUA - Universidad de ...

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Apéndice C 419<br />

Tabla C.7. Parámetros cinéticos <strong>de</strong>l ajuste simultáneo <strong>de</strong> los datos<br />

experimentales <strong>de</strong> curvas TGA y DTGA <strong>de</strong> mezclas EVA-RET.<br />

Parámetros cinéticos Valores optimizados<br />

D1,EVA D,EVA(i) D2,EVA<br />

ER(0.75) kr # 1.18·10 -15<br />

2.13·10 -19<br />

1.02·10 -27<br />

Ea/R (K) 30000 35000 46000<br />

n 1.00 0.80 1.00<br />

ER(1.5) kr # 9.40·10 -16<br />

9.49·10 -20<br />

5.58·10 -28<br />

Ea/R (K) 30000 35750 46000<br />

n 1.00 0.80 1.00<br />

ER(3) kr # 4.70·10 -16<br />

2.78·10 -21<br />

2.74·10 -28<br />

Ea/R (K) 30000 37750 46000<br />

n 1.00 0.80 1.00<br />

sn 0.87 0 0.01<br />

Fracciónes (α, 1-α) 0.95 0.05 -<br />

Reticulante kr # 1.91·10 -3<br />

Ea/R (K) 8006<br />

n 0.80<br />

sn 0.61<br />

ER(0.75) ER(1.5) ER(3)<br />

F.O. TGA (1677 Ptos.) 0.06 0.06 0.04<br />

CV (%) TGA 0.02 0.02 0.01<br />

F.O. DTGA (1677 Ptos.) 0.02 0.03 0.01<br />

CV (%) DTGA 0.48 0.56 0.36<br />

Valores calculados<br />

D1,EVA D,EVA(i) D2,EVA<br />

ER(0.75) Tp (K) 649 684 754<br />

kr a Tp # 0.84 0.72 1.18<br />

ER(1.5) Tp (K) 655 688 759<br />

kr a Tp # 1.02 1.08 0.96<br />

ER(3) Tp (K) 662 701 769<br />

kr a Tp # 0.83 1.02 1.04<br />

Reticulante Tp (K) 490<br />

kr a Tp # 0.32<br />

# -1 1-n<br />

Las unida<strong>de</strong>s <strong>de</strong> k’r son (min ) ⋅ (fracción másica)

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