Types, characteristics, and uses of rubber

Rubber products refer to the production of various rubber products using natural and synthetic rubber as raw materials, including rubber products produced from waste rubber.

1、 Types and characteristics of rubber

A universal rubber

1. Natural rubber NR: made from latex of the three leaf rubber tree, the basic chemical composition is cis polyisoprene, which is a polymer of isoprene.

It is a raw material for making adhesive tape, rubber hose, and rubber shoes, suitable for making shock absorber parts and products used in automotive brake oil, ethanol, and other liquids with hydroxide ions.

Advantages: It has good wear resistance, high elasticity, tensile strength and elongation, acid and alkali resistance, and good comprehensive performance.

Disadvantages: Not heat-resistant, not oil resistant (can tolerate vegetable oil), easily expands and dissolves in mineral oil or gasoline, alkali resistant but not strong acid resistant. It is prone to aging in the air and becomes sticky when exposed to heat.

2. Isoprene rubber IR: The full name is cis-1,4-polyisoprene rubber, a high cis synthetic rubber made from isoprene, produced by solution polymerization. Due to its similar structure and properties to natural rubber, it is also known as synthetic natural rubber.

It can replace natural rubber in manufacturing heavy-duty tires and off-road tires, and can also be used to produce various rubber products.

Advantages: Like natural rubber, it has good elasticity and wear resistance, excellent heat resistance and chemical stability, and superior quality uniformity and processing performance compared to natural rubber.

Disadvantage: The strength of raw rubber (before processing) is significantly lower than that of natural rubber.