Natural Fiber Reinforced Composite

PRESENTED BY

HARI KRISHAN YADAV

Natural Fiber Reinforcement Composite

It is a type of Fiber Reinforced Composite, in which natural fibers are dispersed into a polymer matrix.

They are renewable, cheap, completely or partially recyclable and biodegradable.

Natural fibers are incorporated into a matrix material such as thermosetting plastics, thermoplastics or biopolymers.

Natural fibers being eco-friendly, lightweight, strong, and low cost have already started to replace glass fibers in numerous engineering applications in automobiles, furniture, packaging, and construction etc.

What Is Natural Fiber ?

All fibres which come from natural sources (like plant, animal, etc.) are called as natural fibers.

Natural fibres are greatly elongated substances produced by plants and animals.

Lignocellulosic natural fibres are an excellent raw materials for production of wide range of composites for different applications.

Classification Of Natural Fibers

Difference Between Natural Fiber And Synthetic Fiber

Natural Fiber Synthetic Fiber

All of the natural fibers come from the nature These are completely man made

Fibers are found in staple or filament form It is found in filament form

Length of the fiber is nature given Length of the fiber is controlled by man

It is not possible to change in fiber structure It is easy to change in fiber structure

Comparatively less durable then synthetic fibers These are more durable then natural fibers

These are environment friendly Some fiber are harmful for the environment

Use of natural fibers are limited then synthetic fiber

These are used in multi task then natural fiber

Growth with its natural colors Colors are added in solution bath as required

Classification Of Polymer Matrix

Advantages

Renewable

Recyclable

Eco-friendly

Light weight

Low cost

Acceptable specific strength properties

Better wear protection

They display acoustic insulation and absorb vibrations and large quantities of energy when subjected to destruction.

Reaction to fire of composites based on natural fibres is much more beneficial comparing to polymers

Disadvantages

Moisture absorption, which causes swelling of the fibres.

These are UV-sensitive.

Lower durability.

Low impact strength

Fibre degradation during processing.

Fibre treatments can improve this considerably.

Applications

Automobiles

Furniture

Packaging

Construction

Electronic Component

Marine

Aerospace

Consumer products

The main drivers for use of natural-fiber based composites in automotive applications

Demands for lightweight parts, which leads to a lowering in fuel consumption

Acceptable mechanical properties, good acoustic properties.

Good recycling possibilities of the components made with thermoplastic polymers, reducing the waste disposal problem

Technical benefits such as lower energy loss, longer lifetime of tools, better wear protection etc. can be converted into cost saving potential.

Competitive pricing- Automotive industries have developed using composites with non-wood fibers such as flax and hemp, as well as cellulosics, as an alternative to fiber glass. The resultant composites are lighter, and the natural fibers used by the car industry (VW/Audi, BMW) to produce interior door panels, parcel shelves, dashboards, etc., are competitively priced compared with fiberglass

Natural Fiber Based Composite In Automobile Industries

Flax fiber composite

Hemp fiber composite

Jute fiber composite

Kenaf fiber composite

Sisal fiber composite

Mechanical properties of natural fibers compared with glass fiber

Processing Of NFRC

Injection moulding

Compression moulding

Extrusion

Vacuum moulding

Pultrusion etc.

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