Production and supply of NBR compounds

Mel artistic and industrial rubber company, due to years of experience and expertise in the field of nitrile rubber or NBR compound formulation consultation, as well as having expert and experienced staff, is ready to provide nitrile rubber compound formulation consultation.

What is nitrile rubber or nitrile butadiene rubber (NBR)?

Nitrile rubber or NBR, also known as acrylonitrile butadiene rubber, is a type of rubber combination of acrylonitrile and butadiene. And it is also known by the brand names: Perbunan, Nipol, Krynac and Europrene.

What is nitrile rubber compounding?

If we want to express nitrile rubber compounding or rubber mixing in one sentence in a simple and concise way, we should say “nitrile rubber compounding is actually the process of mixing elastomer with its required additives, which is done by a compounder. Takes.

Who is the nitrile rubber compounder (NBR compounder)?

Nitrile rubber compounder is basically engineering that adjusts and determines all things related to rubber mixing from zero to hundred. The quality of the rubber product resulting from mixing or the compound completely depends on the raw materials, experience, science, expertise, and the type of performance of the compounder. In fact, if any of the determining factors of a quality rubber compound, such as the raw materials of NBR rubber, the knowledge and expertise of the compounder engineer, his experience, the type and method of his operation, play a very effective and important role in the production of the primary product and ultimately the product or products. It has a final product that is consumed by customers or industrial units.

What are the goals of compounding?

Mixing rubbers or nitrile rubber compounding generally pursues 3 main goals, which are as follows: 1- Controlling the rheological behavior of the rubber 2- Improving the physical, mechanical and dynamic properties of the rubber 3- Controlling the cost of the rubber

What is mastication in the rubber compounding process?

If we want to provide a definition of mastication, we can say that the term mastication is “putting the elastomer under tension to reduce the molecular mass and create viscosity (thickness) in the product with the aim of improving

the mixing and quality of that nitrile rubber compound.” Mastication is in the production of rubber compounds. Nitrile can be done in two ways:

1- Physical mastication
2- Chemical mastication in compound formulation (use of peptizers)

A raw elastomer can never be used alone because the raw elastomer is not processable on its own and shows resistance to mechanical processes. This resistance to processability is called Nerve, the more Nerve a rubber has in The fact that the processability of that rubber will be more difficult. Nerve actually means spending time and energy in the rubber process and this means more cost for the process in the field of producing nitrile rubber or nitrile rubber compound. We try to lower the nerve of the rubber in different ways at the beginning of the work so that we can add additives with quantity and Add more quality to the raw elastomer.

Nitrile rubber compound formulation

What are the goals of compounding?

Mixing tires or styrene rubber compounding generally pursues 3 main goals, which are as follows:

1- Controlling the rheological behavior of rubber

2- Improving the physical, mechanical and dynamic properties of rubber

3- controlling the cost of tires

Styrene rubber compound formulation

The formulation of styrene rubber compounds includes the following:

Elastomers: It is a polymer base or an alloy of different polymer bases.
Strengthening factors: It is used to improve the physical, mechanical and dynamic properties of the product.
Process aids: include plasticizers, homogenizers, retarders, and several others to control the compound’s rheological properties during mixing and shaping.
Stabilizing systems: against oxygen and ozone and acid and base
Baking system: includes baking agent, accelerator and activators.

How to choose elastomer in formulation design
Based on the environment in which the final piece is supposed to work. (Chemical resistance). Based on the desired physical, mechanical and dynamic properties for the final product, such as hardness and tensile strength, elongation percentage, resilience, compressive strength, etc. Other technical demands or requests of the customer, which are usually presented to the desired organization under the title of test plan.
Measurable physical, mechanical and dynamic properties in nitrile rubber compound formulation

• Hardship
• Tensile strength
• Percentage increase in length
• pressure mana
• heat resistance
• Chemical resistance
• Ozone resistance
• Other tests