[Chemical Knowledge]：The nature, use, upstream and downstream raw materials, storage methods, hard bubble polyether price today.

Properties of hard foam polyether

Rigid Polyether (Rigid Polyether Polyol) is an important polyurethane raw material, mainly used in the production of rigid polyurethane foam. It has the following key properties:

1. Chemical properties: rigid foam polyether is usually composed of a copolymer of ethylene oxide and propylene oxide, and its molecular structure contains multiple hydroxyl (-OH) groups. These hydroxyl groups can react with isocyanates to form polyurethanes.

2. Physical properties: hard foam polyether is usually colorless to light yellow transparent liquid, with high viscosity and certain viscoelasticity. In the use temperature range, it has good thermal stability and chemical resistance.

3. Mechanical properties: as the main raw material of rigid polyurethane foam, rigid foam polyether gives products excellent mechanical properties, including high strength, high hardness and good compression resistance, making them perform well in structural applications.

Hard bubble polyether uses

Hard foam polyether has a wide range of applications in the industrial and construction fields, mainly in the following aspects:

1. Building insulation materials: rigid polyurethane foam is widely used in the insulation layer of buildings because of its excellent thermal insulation performance. It can be used for insulation of roofs, walls and floors to reduce energy loss and improve building energy efficiency.

2. Cold chain logistics: In cold chain equipment such as refrigerated trucks, cold storage and refrigerators, rigid polyurethane foam is used as a thermal insulation material to maintain a low temperature environment and ensure the safe storage and transportation of food and medicines.

3. Packaging materials: Due to its good compression resistance and cushioning properties, rigid polyurethane foam is also used for the packaging of fragile items to protect the goods from damage during transportation.

4. Industrial pipeline insulation: rigid polyurethane foam is also used for industrial pipeline insulation, especially in the petroleum, chemical and other industries, to prevent the medium in the pipeline from affecting production efficiency and safety due to temperature changes.

Hard bubble polyether upstream and downstream raw materials

The production of rigid foam polyether involves a number of upstream raw materials and downstream products:

1. Upstream raw materials: The main upstream raw materials of rigid foam polyether include ethylene oxide, propylene oxide and various catalysts. Ethylene oxide and propylene oxide generate polyether polyols through ring-opening polymerization, and the catalyst plays a role in regulating molecular weight and distribution during the reaction.

2. Downstream products: hard foam polyether as an intermediate, is widely used in the production of various rigid polyurethane foam products. These products cover building insulation materials, cold chain equipment, packaging materials and industrial insulation materials and other fields, forming a huge downstream application market.

Hard foam polyether storage method

Due to the special properties of hard foam polyether, its storage method requires special attention to ensure product quality and safe use:

1. Temperature control: hard foam polyether should be stored in a cool, dry environment, avoid high temperature and direct sunlight. The best storage temperature is generally between 10-25 degrees Celsius, too high or too low temperature may affect its stability and performance.

2. Sealed storage: The hard foam polyether should be stored in a closed container to prevent moisture and impurities in the air from entering, causing the product to deteriorate. In particular, water will react with the hydroxyl group in the rigid foam polyether to generate carbon dioxide gas, which affects the foaming effect.

3. Fire and explosion-proof: hard foam polyether should be kept away from fire sources and flammable materials during storage and use, because it is a flammable liquid, especially under high temperature conditions, it may cause fire or explosion accidents.

Conclusion

As an important chemical raw material, hard foam polyether is widely used in construction, cold chain logistics, packaging and industrial insulation due to its excellent physical, chemical and mechanical properties. Its production process involves a number of upstream raw materials, and downstream products are widely used, forming a complete industrial chain. During the storage process, special attention should be paid to temperature control, sealed storage and fire and explosion prevention measures to ensure product quality and safety. With the increasing global demand for energy-saving and environmental protection materials, the market prospect of hard foam polyether and its products will be broader.