Research Article

The Influence of Fiber Length and Concentration on the Physical Properties of Wheat Husk Fibers Rubber Composites

Table 3

Vulcanization characteristics of WHF-EPDM composites.

Mix 𝑀 𝐻 (dNm) 𝑀 𝐿 (dNm) 𝑀 𝐻 𝑀 𝐼 (dNm) 𝑇 𝐶 9 0 (min) 𝑇 𝑆 𝐼 (min)CRI (min−1)

MW 0 778.468.619.703.256.08
MW 1 5 78.99.069.920.752.335.43
MW 3 0 78.910.968.020.252.735.56
MW 4 0 771067.018.831.855.89
MW 5 0 77.812.964.920.32.265.54

HW 3 0 85.911.274.719.602.155.73
MW 3 0 78.910.968.020.252.735.56
SW 3 0 77.810.267.620.002.135.59

Cure time = 𝑡 C 9 0 , Scorch time = 𝑡 S 2 , Cure Rate I n d e x = C R I = 1 0 0 / ( 𝑇 C 9 0 𝑇 S 2 ) .