Fiber-reinforced composite

A fiber-reinforced composite (FRC) is a composite building material that consists of three components: (i) the fibers as the discontinuous or dispersed phase, (ii) the matrix as the continuous phase, and (iii) the fine interphase region, also known as the interface. This is a type of advanced composite group, which makes use of rice husk, rice hull, and plastic as ingredients. This technology involves a method of refining, blending, and compounding natural fibers from cellulosic waste streams to form a high-strength fiber composite material in a polymer matrix. The designated waste or base raw materials used in this instance are those of waste thermoplastics and various categories of cellulosic waste including rice husk and saw dust.

FRC is high-performance fiber composite achieved and made possible by cross-linking cellulosic fiber molecules with resins in the FRC material matrix through a proprietary molecular re-engineering process, yielding a product of exceptional structural properties.

Through this feat of molecular re-engineering selected physical and structural properties of wood are successfully cloned and vested in the FRC product, in addition to other critical attributes to yield performance properties superior to contemporary wood.

This material, unlike other composites, can be recycled up to 20 times, allowing scrap FRC to be reused again and again.

The failure mechanisms in FRC materials include delamination, intralaminar matrix cracking, longitudinal matrix splitting, fiber/matrix debonding, fiber pull-out, and fiber fracture.

Difference between wood plastic composite and fiber-reinforced composite:

The appropriate "average" of the individual phase properties to be used in describing composite tensile behavior can be elucidated with reference to Fig. 6.2. Although

this figure illustrates a plate-like composite, the results that follow are equally applicable to fiber composites having similar phase arrangements. The two phase

material of Fig. 6.2 consists of lamellae of ${\displaystyle \alpha }$ and ${\displaystyle \beta }$ phases of thickness ${\displaystyle l_{\alpha }}$ and ${\displaystyle l_{\beta }}$. and respectively. Thus, the volume fractions (${\displaystyle V_{\alpha }}$, ${\displaystyle V_{\beta }}$) of the phases are ${\displaystyle V_{\alpha }={\frac {l_{\alpha }}{l_{\alpha }+l_{\beta }}}}$ and ${\displaystyle V_{\beta }={\frac {l_{\beta }}{l_{\alpha }+l_{\beta }}}}$.

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