Euro Footwear Rubber Technologist Interview Questions, Process, and Tips

Rubber compound problem

Q1. Rubber Compounding test
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Q2. 90 How will the Abrasion Compound be prepared
Ans. 
The Abrasion Compound is prepared by mixing various ingredients in specific proportions and processing them to achieve the desired properties.
• Mixing ingredients such as rubber, fillers, plasticizers, and curing agents in a specific ratio

• Processing the mixture through methods like milling, calendering, and extrusion

• Testing the compound for properties like abrasion resistance, tensile strength, and elongation at break

• Adj...read more
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Q3. Which polymer is present in Oli resistance Compound?
Ans. 
The polymer present in Oil resistance Compound is Nitrile rubber (NBR).
• Nitrile rubber (NBR) is commonly used in Oil resistance Compounds due to its excellent resistance to oils, fuels, and chemicals.

• NBR is a synthetic rubber copolymer of acrylonitrile and butadiene.

• It is often used in automotive seals, gaskets, hoses, and O-rings where resistance to oil and fuel is required.
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Q4. What is Chemical testing in rubber?
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Chemical testing in rubber involves analyzing the composition and properties of rubber materials to ensure quality and performance.
• Chemical testing helps determine the presence of specific chemicals in rubber compounds.

• It can also assess the degradation of rubber due to exposure to chemicals or environmental factors.

• Common chemical tests include Fourier transform infrared spectroscopy (FTIR), gas chromatography-mass sp...read more
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Q5. Costing of rubber compound
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Costing of rubber compound involves calculating the total cost of raw materials, processing, and overhead expenses.
• Calculate the cost of raw materials used in the rubber compound.

• Consider the processing costs, including labor, energy, and equipment maintenance.

• Factor in overhead expenses such as rent, utilities, and administrative costs.

• Determine the total cost by adding up all the individual costs.

• Example: Cost of rub...read more
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