Sbr Latex Polymer Material In Chhattisgarh

What is SBR Latex Polymer?

SBR Latex stands for Styrene-Butadiene Rubber Latex. It is a synthetic rubber latex, a stable dispersion (emulsion) of polymer microparticles in an aqueous medium. SBR latex is produced by emulsion polymerization of styrene and butadiene monomers.

Composition

Styrene: Typically 15-30% by weight in the copolymer.

Butadiene: Typically 70-85% by weight.

The ratio of styrene to butadiene affects the properties of the SBR latex (more styrene increases hardness and resistance to oil; more butadiene increases elasticity).

Physical Properties

Appearance: Milky white liquid (latex form).

Solid Content: Usually 40-50%.

Particle Size: Approximately 0.1 microns.

pH: Generally 8-11 (slightly alkaline).

Viscosity: Low, easy to handle and mix.

Shelf Life: Stable for several months if stored properly.

Chemical Properties

Resistant to abrasion.

Good resistance to heat and aging.

Moderate resistance to oils, solvents, and chemicals.

Good adhesive properties.

Key Features and Benefits

High flexibility and elasticity: SBR latex maintains rubbery properties at room temperature.

Excellent abrasion resistance: Good for applications requiring durability.

Water resistance: Useful in water-based applications.

Adhesion: Excellent bonding to fabrics, paper, metals, and other materials.

Film-forming: Forms flexible, durable films upon drying.

Cost-effective: Cheaper than natural rubber latex for many applications.

Applications

Paper coating: Improves strength, surface finish, and water resistance.

Textile finishing: Provides elasticity and durability to fabrics.

Carpet backing: Used as adhesive and binding agent.

Construction: Added to cement and mortar to improve flexibility and adhesion.

Adhesives: In pressure-sensitive adhesives, carpet adhesives, and bonding agents.

Coatings and paints: Used to improve toughness and elasticity.

Rubber goods: Used as a raw material in manufacturing tires, shoe soles, and other rubber products.

Production Process (Brief)

SBR latex is produced by emulsion polymerization:

Styrene and butadiene monomers are emulsified in water with surfactants.

A free radical initiator triggers polymerization at controlled temperature.

Polymer particles form and remain dispersed in water.

The latex can be stabilized with protective colloids or surfactants.

Safety and Handling

Non-toxic in typical use.

Avoid ingestion and prolonged skin contact.

Store in a cool, dry place to prevent coagulation.

Stable under normal conditions but keep away from freezing.