1. What is SBR rubber?
Styrene butadiene rubber, also known as SBR, is a synthetic elastomer derived from styrene and butadiene. SBR is also known as Buna® S (from Bayer's original trade name).
SBR consists of two monomers: styrene and butadiene. Generally, the ratio of styrene to butadiene is 3:1, although this can vary. Depending on the method of copolymerization of styrene and butadiene, there are two types:
E SBR (or SBR) = Emulsion SBR
S SBR = Solution SBR
Structural formula of SBR rubber
2. Properties of SBR rubber
- Advantage:
- High abrasion resistance and mechanical strength;
- Has good heat resistance (-250C to 1000C) and chemical resistance;
- Rubber has good elasticity and impact absorption;
- Easy to process and mass produce, low production cost;
- Reasonable cost and good recyclability;
- Better water resistance than natural rubber;
- Withstands dilute acid and alkaline solutions;
- Good insulation;
- Disadvantange:
- At high temperatures, rubber has poor crack resistance and develops cracks rapidly;
- Weather resistance, Ozone, sunlight, poor aging;
- Low raw plasticity: short pre-treatment – difficult to fill mold
- High internal heat;
- SBR rubber has poor resistance to ozone, oxidation and weathering;
- Very poor oil resistance;
3. Applications of SBR rubber
Since SBR is one of the most cost-effective options when it comes to synthetic rubber, it is considered one of the most widely used materials in the world. SBR rubber is commonly found in gaskets, seals, and O-rings in plumbing and heating, ventilation, and air conditioning (HVAC) systems. In addition, SBR rubber is also used in the following areas:
- Tires: SBR is a key component of many tires, especially car and truck tires, due to its elasticity, abrasion resistance, and heat resistance.
- Cushioning: SBR is used to manufacture cushioning products, including cushioning for furniture, bedding, floor upholstery and many other applications.
- Soundproof and heat insulation products: SBR has good soundproof and heat insulation properties, so it is used to manufacture soundproof and heat insulation products for applications such as acoustic, thermal and plumbing.
- Footwear and sports: SBR is used to manufacture shoe soles, sliding surfaces for sports products, and impact-resistant products such as knee and elbow guards.
- Industrial Products: SBR is also used to make industrial products such as adhesives, pipes, covers, fenders and knitted fabrics.
- Construction: SBR is widely used as a waterproofing material in the construction industry. Used as part of waterproofing materials, SBR helps protect walls, floors, roofs and other surfaces from water and moisture penetration.
Anh Tri Tue Company specializes in manufacturing technical rubber products from SBR rubber.
As one of the units with many years of research on rubber, Anh Tri Tue Company specializes in providing high quality technical rubber products with the goal of top quality. If you are considering SBR Rubber for your next projects, please contact us for advice and quotation.
