What is technically specified natural rubber?

TSR: Technically specified rubber is a form of natural rubber comparable to that of Synthetic rubber with respect to grading by technical standards & packing. TSR is obtained from latex, field coagulum or both. TSR is produced by almost all countries which produce NR & marketed under different brand names.

What is TSR20?

Marking: Rubber 20 is also known as TSR20. The surface the production of standard rubber, is also known as technically specified rubber (TSR).

What is natural rubber properties?

Natural Rubber Properties Natural rubber demonstrates high elasticity, resilience, and tensile strength, Additionally, it resists wear damage (e.g., chipping, cutting, and tearing), offers good dynamic performance properties, and has low damping levels.

What is natural rubber example?

Natural rubber (Isoprene) is derived from the latex sap of the Pará rubber tree (hevea brasiliensis). ON the downside, natural rubber is only moderately resistant to heat, light and ozone damage. Natural rubber is used in gaskets, seals, shock mounts, hoses and tubing.

What does SBR rubber stand for?

Styrene-butadiene rubber
Styrene-butadiene rubber (SBR), a general-purpose synthetic rubber, produced from a copolymer of styrene and butadiene.

What is RSS in rubber?

Ribbed Smoked Sheet Rubber (RSS Rubber) is a form of raw natural rubber produced mainly in Sri Lanka by small and medium scale rubber growers. It is made from natural rubber latex which is treated and then made to coagulate.

Why is rubber a synthetic material?

A synthetic rubber is any artificial elastomer. They are polymers synthesized from petroleum byproducts. About 32-million metric tons of rubbers are produced annually in the United States, and of that amount two thirds are synthetic.

What are disadvantages of natural rubber?

Natural Rubber – Drawbacks

• It’s expensive.
• Traction performance – Natural rubber doesn’t perform too well in wet traction surfaces.
• Rolling Resistance – Not very good at reducing rolling resistance.
• It is affected by temperature – In warmer temperatures natural rubber may flex and mold.

Where is natural rubber used?

Natural rubber, or latex is used mostly in car tyres and medical products. Vulcanised rubber is mainly used to produce automotive tyres, however there are a large number of additional applications, including seals and medical products (e.g. surgical gloves).

What are the two types of rubber?

Different Types of Rubber There are basically two broad categories into which the rubber types can be placed. These are- Natural Rubber and Synthetic Rubber. Sometimes vulcanized rubber is also taken to be a type of rubber.

Is butyl natural rubber?

Natural rubber polymer consists of natural rubber and isoprene. Butyl rubber is composed of isobutene and isoprene, and was introduced in 1943. It is more durable than natural rubber, making it the preferred choice with larger industrial products.

What is the structural formula of SBR rubber?

Exceeding all other synthetic rubbers in consumption, SBR is used in great quantities in automobile and truck tires, generally as an abrasion-resistant replacement for natural rubber (produced from polyisoprene). SBR is a mixture of approximately 75 percent butadiene (CH2=CH-CH=CH2) and 25 percent styrene (CH2=CHC6H5).

What are the physical characteristics of TSR20 rubber?

General Characteristics:- TSR20 has excellent processing characteristics and good physical properties. Its low viscosity and easier mixing characteristic (compared with the RSS grades) will reduce the mastication and mixing period considerably. 14

When did they start using TSR for rubber?

Originally, most of the solid rubber used was in the form of ribbed smoked sheets or RSS rubber. By the early 1970s, however, TSR or rubber was introduced into the market.

When did they start using technically specified rubber?

Technically Specified or Block Rubber (TSR) Originally, most of the solid rubber used was in the form of ribbed smoked sheets or RSS rubber. By the early 1970s, however, TSR or rubber was introduced into the market.

What’s the difference between ISNR and TSR rubber?

In Indonesia, the designation given is Standard Indonesian Rubber (SIR). In Thailand the TSR’s are called Standard Thai Rubber (STR) . In India, the TSR’s are designated as Indian Standard Natural Rubber (ISNR). 4 5.