It is a colorless to pale yellow liquid with a sharp, pungent odor and a low vapor pressure. TDI mainly use in the production of polyurethanes, which are polymers formed by the reaction of TDI with polyols. Polyurethanes have various applications depending on their properties, such as elasticity, rigidity, density, and thermal stability.

Some of the uses of polyurethane products derived from TDI are:

1. Elastic and rigid foams: These widely use for insulation, cushioning, packaging, furniture, bedding, and automotive parts. Elastic foams are soft and flexible, while rigid foams are hard and strong.
2. Paints and lacquers: These use for coating surfaces to protect them from corrosion, abrasion, weathering, and UV radiation. They also provide aesthetic appeal and color to the surfaces.
3. Adhesives and sealants: These use for bonding different materials together or sealing gaps and cracks. They have high adhesion strength, durability, and resistance to moisture and chemicals.
4. Binding agents: These use for improving the mechanical properties of materials such as wood, paper, textiles, and concrete. They enhance the strength, stiffness, and toughness of the materials.
5. Synthetic rubbers and elastomeric fibers: These use for making products that require elasticity, flexibility, and resilience. They include tires, hoses, belts, gaskets, seals, gloves, and clothing.

The technical specifications of its TDI product are:

– Purity: 99.5% min
– Isomer ratio (2,4-TDI/2,6-TDI): 80/20 ± 2
– Hydrolyzable chlorine: 0.01% max
– Acidity (as HCl): 0.004% max
– Color (APHA): 25 max
– Specific gravity (at 20°C): 1.21 – 1.22

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METHYLENE DIPHENYL DI ISOCYANATE (MDI)

Finally, if you are looking for TOLUEN DI ISOCYANATE (TDI) from KARUN PETROCHEMICAL plants, Arena Petro Gas company is ready to supply you as its trading services according to your requirements and in accordance to the manufacturers’ specifications, you can easily submit your order online.

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METHYLENE DIPHENYL DI ISOCYANATE (MDI) is an aromatic di isocyanate that is widely used in the production of polyurethane foams, adhesives, coatings, elastomers and sealants. It has three common isomers: 2,2′-MDI, 2,4′-MDI and 4,4′-MDI. The 4,4′-MDI isomer, also known as pure MDI or 4,4′-diphenylmethane di isocyanate, is the most widely used and has the highest reactivity.

Some of the uses of MDI are:

• Rigid polyurethane foams for insulation, refrigeration, packaging and construction applications.
• Flexible polyurethane foams for furniture, bedding, automotive and footwear applications.
• Polyurethane adhesives for wood, metal, plastic and rubber bonding.
• Polyurethane coatings for automotive, industrial, marine and architectural applications.
• Polyurethane elastomers for wheels, tires, rollers, belts and seals.
• Polyurethane sealants for construction, automotive and industrial applications.

MDI is used in various industries that require high-performance materials with excellent mechanical properties, thermal stability, chemical resistance and durability. Some of the industries that use MDI are:

• Construction and building
• Automotive and transportation
• Furniture and bedding
• Appliances and refrigeration
• Packaging and food
• Footwear and textiles
• Electronics and electrical
• Medical and health care

The technical specifications of MDI vary depending on the product type, grade and application. One of the producers of MDI is KARUN PETROCHEMICAL, a company based in Iran that manufactures monomeric MDI (MMDI) and polymeric MDI (PMDI). According to their website , some of the technical specifications of their products are:

| Product | NCO Content (%) | Viscosity (mPa.s at 25°C) | Density (g/ml at 25°C) | Color (APHA) |
|———|—————–|—————————|————————|————–|
| MMDI | 33.5 | 5 | 1.23 | <20 |
| PMDI | 31.5 | 200 | 1.24 | <100 |

Related Products:

TOLUEN DI ISOCYANATE (TDI)

Finally, if you are looking for METHYLENE DIPHENYL DI ISOCYANATE (MDI) from KARUN PETROCHEMICAL plants, Arena Petro Gas company is ready to supply you as its trading services according to your requirements and in accordance to the manufacturers’ specifications, you can easily submit your order online.

Please enable JavaScript in your browser to complete this form.

Full Name *

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Quantity (MT) *

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The post METHYLENE DIPHENYL DI ISOCYANATE (MDI) appeared first on Arena Petro Gas.