SBR Latex (Styrene-Butadiene Rubber Latex) is a synthetic rubber emulsion that is widely used in various industries due to its excellent mechanical properties, flexibility, water resistance, and cost-effectiveness.
Here's a comprehensive overview:
Chemical Composition
Main components: Styrene and butadiene (typically in a 23:77 ratio)
Form: A milky-white liquid emulsion (water-based)
Chemical formula: (C₈H₈·Câ‚„H₆)â‚™ (copolymer of styrene and butadiene)
Key Properties
Property Value / Description
Appearance Milky white liquid
pH 6.5–10.0 (varies with formulation)
Solid Content 45–55% typical
Viscosity 50–500 mPa·s
Particle Size ~100–300 nm
Glass Transition Temperature (Tg) ~ -50°C to -20°C
Film Forming Ability Excellent
Water Resistance Good to excellent
UV/Ozone Resistance Poor (needs additives for improvement)
Production Method
SBR latex is typically produced via emulsion polymerization, involving:
Monomers: Styrene and butadiene
Surfactants/Emulsifiers
Initiators: Organic peroxides or redox systems
Optional: Antioxidants, stabilizers
Applications
SBR latex is extremely versatile. Common uses include:
Construction
Cement and mortar modification (improves flexibility and water resistance)
Waterproof coatings
Bonding agents for tiles and repair mortars
Gloves & Textiles
Dipping for rubber gloves
Coating for non-woven fabrics
Carpet backing
Paper Industry
Coating and sizing
Improves gloss, smoothness, and printability
Paints and Adhesives
Binder in latex paints
Adhesives for various substrates (especially pressure-sensitive types)
Advantages
Cost-effective compared to natural latex or other synthetic rubbers
Excellent film-forming properties
Good mechanical strength and abrasion resistance
Emulsion form allows easy handling and application in water-based systems
Limitations
Poor resistance to ozone, UV, and oxygen unless modified
Lower elasticity compared to natural rubber
Not suitable for high-heat or highly chemical-resistant applications without further formulation
Storage & Handling
Store between 5°C and 30°C
Avoid freezing
Use stainless steel or plastic containers to avoid metal ion contamination
SBR Latex (Styrene-Butadiene Rubber Latex) Is A Synthetic Rubber Emulsion, Widely Used In Various Industrial And Construction Applications Due To Its Excellent Bonding, Flexibility, And Water Resistance Properties. Here's A Detailed Overview:Chemical CompositionSBR Latex Is A Copolymer Of Styrene (C₈H₈) And Butadiene (C₄H₆).It's Produced Via Emulsion Polymerization, Resulting In A Milky-white, Water-based Liquid. PropertiesProperty DescriptionAppearance Milky White Liqui Continue
SBR Latex (Styrene-Butadiene Rubber Latex) Is A Synthetic Rubber Emulsion That Is Widely Used In Various Industries Due To Its Excellent Adhesion, Flexibility, Abrasion Resistance, And Water Resistance. Basic CompositionSBR Latex Is Made By The Emulsion Polymerization Of:Styrene (C₈H₈) – Provides Hardness And StrengthButadiene (Câ‚„H₆) – Provides Flexibility And Toughness Key PropertiesProperty DescriptionAppearance Milky White LiquidSolids Content 45& Continue
SBR Latex Is A Synthetic Rubber Emulsion Made By The Polymerization Of Styrene And Butadiene. It Is Commonly Used In Construction, Textiles, Paper Coatings, Adhesives, And Various Industrial Applications.Key Properties Of SBR Latex:Good Flexibility And ElasticityExcellent Water ResistanceModerate Chemical ResistanceGood Bonding Strength To Various SubstratesCost Effective Compared To Natural RubberApplications Of SBR Latex:Cement And Mortar Modification To Improve Flexibility And Continue