(PBD) the second largest volume elastomer, accounts for approximately 25 percent of the total global consumption of synthetic rubbers. The global polybutadiene production will soon reach more than 3.1 million tonnes (Source: ). Due to its very low vinyl content it has a very low glass transition temperature (-90 °C), very high resilience and is probably the most elastic rubber. PBD also has good abrasion and tear resistance as well as low heat buildup, which is important for tire applications. Compared to SBR, it has a lower glass transition temperature, which gives it a lower rolling resistance. However, it has lower friction on wet surfaces than SBRs. For this reason, it is usually blended with SBRs and natural rubbers to achieve the best tire performance.
(IR/NR) is another widely-used commercial rubber. It is either harvested in the form of latex from rubber trees (NR) or synthetically produced by polymerization of 1-methyl-1,3-butadiene (IR). Natural rubber is also known as India rubber or caoutchouc. Like most dienes, it has poor resistance to ozone, gasoline, and many organic solvents. It still finds many applications because of its high resilience, abrasion resistance, and strength. The largest portion of produced IR and NR is used for tires. It is usualy blended with SBR and PBD rubber to achieve superior performance.
Another very resilient and chemical resistent rubber is nitrile-butadiene rubber (NBR). Because of its excellent oil resistance, it is used for gasoline hoses, O-rings, gaskets, V-belts and many other automotive rubber parts. It is also used for disposable laboratory gloves, synthetic leather, printer rollers, and as cable jacketing.
Styrene butadiene rubber (SBR) is a type of synthetic rubber produced by the copolymerization of styrene and butadiene polymers. SBR exhibits excellent abrasion resistance and good aging stability when protected by additives. Therefore, it is used extensively in the production of tires in the automotive industry. In addition, it is used in non-tire applications such as conveyor belts, gaskets, shoe heels and soles, and other consumer goods. SBR is of two types: emulsion SBR (E-SBR) and solution SBR (S-SBR).
The major use of butadiene rubber is in tires. Approx. 70 percent of the polymer produced goes into side walls and treads. PBD rubber is usually combined with other elastomers like natural rubber and SBR for tread applications. Other applications are golf ball cores, inner tubes of hoses for sandblasting, covers of hoses for pneumatic and water hoses, fuel for solid rocket boosters (in combination with oxidizers), and toughened plastics. About 25 percent of the total polybutadiene volume is used to improve the mechanical properties of plastics, in particular those of high-impact polystyrene (HIPS) and acrylonitrile butadiene styrene (ABS).
The most important diene elastomers are styrene-butadiene rubber (SBR), polybutadiene (PBD), nitrile-butadiene rubber (NBR), polychloroprene (CR) and polyisoprene (NR, IR). Among these rubbers, polybutadiene and butadiene copolymers (SBR) have the largest sales volume of the synthetic rubbers.
(SBR) is the largest-volume elastomer. It is a highly random copolymer of butadiene and 10 to 25 percent styrene. The addition of styrene improves the strength and abrasion resistance, reduces the price, and often improves the compatibiltiy with other materials in blends. SBRs have excellent resistance to brake fluids and good aging stability when protected by additives. Many grades of SBRs can withstand temperatures between 235 - 370 K for prolonged periods of time. However, their low temperature flexibility and tensile strength are less than that of natural rubber.
The major use of SBR is in the production of tires (ca. 75 percent). Car tires often contain up to 50 percent SBR. The styrene-butadiene ratio influences the properties of the tires: a higher styrene content improves the hardeness but makes them less rubbery. Other important applications are shoe soles and heels, hoses, adhesives, floor tiles, gaskets, and chewing gum.
SBR should not be confused with thermoplastic block-copolymers made from the same monomers, the so called styrene-butadiene block copolymers (SBS copolymers).
Covered in this report
The report covers the present scenario and the growth prospects of the global styrene butadiene rubber market for 2017-2021. The report presents a detailed picture of the market by way of study, synthesis, and summation of data from multiple sources.
The report, Global Styrene Butadiene Rubber Market 2017-2021, has been prepared based on an in-depth market analysis with inputs from industry experts. The report covers the market landscape and its growth prospects over the coming years. The report also includes a discussion of the key vendors operating in this market.
Other styrene consumption is for the production of acrylonitrile-butadiene-styrene (ABS) and styrene-acrylonitrile (SAN) resins (16%), styrene-butadiene (S/B) copolymer latexes (6%) and unsaturated polyester, accounting for an additional 6% of world styrene demand, while SBR and SBR latexes production accounted for 4% of world demand.
Styrene is used in everything from food containers and packaging materials to cars, boats, computers, and video games.
When it is linked together in long chains, or polymerised, styrene is used predominantly in the production of polystyrene plastics and resins, such as in insulation or in the fabrication of fibreglass boats; most styrene products contain a residue of unlinked styrene. Styrene is also used to make rubber, and as an intermediate in the synthesis of materials used for ion exchange resins and to produce copolymers such as styrene-acrylonitrile, acrylonitrile-butadiene-styrene, and styrene-butadiene rubber.