What are natural rubbers? What are their drawbacks?

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written 3.4 years ago by

teamques10 ★ 67k

Natural rubber consists of basic material latex, which a dispersion of isoprene
Natural rubber is made from the saps of a wide range of plants like havea brasillians and gauyule, found in tropical and semi-tropical countries.
The rubber latex is obtained by making incisions in the bark of the rubber trees and allowing the saps to flow out into small vessels.

Drawbacks:
- Natural rubber does not perform well when exposed to chemicals and petroleum derivatives, including petrochemicals
- It is not recommended for outdoor applications where maximum resistance to sunlight, ozone or hear aging is major factor
- Its plasticity is greater than elasticity. It cannot sustain stress. Thus, when stretched to a great extent, it undergoes deformation permanently.
- It has large water absorption tendency, which makes it weak.

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