What are additives for rubber?

Rubber Additives

• Aflux.
• Aktiplast.
• Antilux.
• Coagulant.
• Cohedur.
• Colloidal Sulfur.
• Emulvin.
• Perkalink.

What are the purposes of compounding the rubber with additives?

Rubber compounding involves the science and engineering of rubbers and rubber additives, such as processing aids, fillers, and curing agents, in definite proportions to obtain a uniform mixture that will have desirable physical and chemical properties to meet processing at low cost and end use performance.

What are the components added during compounding of rubber?

Ingredients in rubber compounds are a large group of components, including curing agents, accelerators and vulcanization activators, antioxidants, plasticizers, fillers and special additives (blowing agents, dyes, etc.).

What are the factors affecting selection of additives and polymers for compounding?

The key factors that determine dispersion quality are the raw material quality, the dispersion formulation, processing equipment and mixing procedure.

What is added to rubber to make it black?

Carbon black is the type of filler most commonly used in making rubber compounds. The addition of carbon black will affect compound properties, viscosity, and strength of the compound.

What are compounding ingredients?

Drug compounding is often regarded as the process of combining, mixing, or altering ingredients to create a medication tailored to the needs of an individual patient. Compounding includes the combining of two or more drugs. Compounded drugs are not FDA-approved.

What are some of the materials that can be added to natural rubber and for what purpose?

The compounds that are added are vulcanizing agents, plasticize rs, accelerators, fillers, hardeners, reinforcing agents and pigments. Vulcanizing agents are substances like sulfur which when added to crude rubber reduce its plasticity while maintaining its elasticity. These are essential for vulcanization of rubber.

How are rubber products made?

Rubber processing technically begins at the point of harvesting, when tappers take latex sap from rubber trees. Next, the latex is filtered and packaged into drums, then sent to be made into sheets. To achieve this, acid is added to the latex, causing the material to become clumpy.

What are the additives used in polymers?

Polymer Additives. The most common polymer additives are stabilizers, plasticizers, lubricants and flame retardants. Stabilizers are added to prolong the useful life of a polymer formulation by protecting it from thermal and light-assisted oxidation.

What are the functions of polymer additives?

Additives often contain different chemical elements from the original polymer materials and need to be distributed evenly throughout the polymer to work effectively. Acts as a lubricant for polymer chains. Large amounts give a flexible product, low quantities produce a rigid one. Prevents decomposition of polymer.

What two liquids make rubber?

Buna N rubber (also known as standard Nitrile rubber) is a synthetic rubber compound comprising acrylonitrile and butadiene – two copolymers. Because acrylonitrile is a volatile organic liquid, when it mixes with butadiene (a synthetic chemical compound) a reaction occurs, producing Buna N rubber.