Recently, Hebei Lanxuan Energy saving Building Materials Co., Ltd. announced that its newly developed polyurethane building insulation material has been successfully applied to multiple low-carbon building projects. This material, with its excellent thermal insulation performance and environmental properties, helps achieve energy conservation and emission reduction goals in the construction indust
1〠Polyurethane: an all-around player in materials science
Polyurethane (PU) is a polymer material with a main chain containing amino ester groups. Its unique molecular structure endows it with comprehensive properties such as adjustable hardness, wear resistance, corrosion resistance, thermal insulation, and sound insulation. By adjusting the ratio of raw materials, polyurethane can be made into foam, elastomer, paint, adhesive and other forms, and its application scope covers all aspects of human life.
2〠Analysis of core application areas
1. Architecture and Building Materials: Dual Protection of Energy Efficiency and Safety
Polyurethane is mainly manifested in three major functions in the field of construction:
Thermal insulation: rigid polyurethane foam is an efficient thermal insulation material with a thermal conductivity as low as 0.022 W/(m · K), which is widely used for wall, roof, cold storage and pipeline insulation. Its thermosetting properties allow the material to form a coking protective layer when exposed to fire, and its flame retardant performance is superior to traditional polystyrene materials.
Waterproof and Decorative: Polyurethane coating combines waterproofing, weather resistance, and decorative properties, commonly used for building facades and metal surface protection. The water-based polyurethane coating of Hebei Lanxuan Company is marketed as environmentally friendly and pollution-free, making it the preferred material for green building certification.
Structural bonding: Polyurethane adhesive can replace traditional formaldehyde based adhesives for the production of formaldehyde free boards, promoting the upgrading of home environmental protection.
2. Transportation and Mobility: Breakthroughs in Lightweight and Comfort
Automobile manufacturing: From seat sponge, dashboard to sound insulation layer, a high-end car uses more than 10 kilograms of polyurethane material. Its lightweight characteristics can reduce the weight of the vehicle and improve fuel efficiency.
Aerospace: Polyurethane foam adhesive is used for thermal insulation and sound insulation of aircraft fuselage, with a temperature resistance range of -50 ℃ to 150 ℃, ensuring stable performance in extreme environments.
3. Medical and Bioengineering: Innovative Support for Life and Health
The biocompatibility of polyurethane makes it a core material for artificial organs, such as artificial blood vessels, pacemaker casings, and dialysis membranes. Its anticoagulant and fatigue resistance significantly prolong the service life of medical devices.
4. Industry and Livelihood: Diversified Scene Coverage
In the field of household appliances, the insulation layer of refrigerators is almost entirely made of polyurethane rigid foam, which reduces energy consumption by 30% compared to traditional materials.
Daily necessities: PU leather, due to its low cost and strong durability, occupies the mainstream of the clothing, shoe and bag market; Spandex fiber (Lycra) endows textiles with high elasticity.
Agriculture and Logistics: Polyurethane insulated greenhouses can increase crop yields, while water-based polyurethane mortar flooring has become the preferred flooring for chemical plants and logistics storage due to its corrosion resistance and impact resistance.
3〠Future Trends: Parallel Greening and High Performance
With the advancement of the "dual carbon" target, the environmental attributes of polyurethane are further highlighted. For example, the bio based polyurethane material developed by Hebei Lanxuan Company replaces petroleum raw materials with renewable resources to reduce carbon emissions. At the same time, in response to the demand for extreme environments such as high-temperature resistant flooring and ultra-low temperature pipeline insulation, research on the modification of polyurethane continues to deepen, promoting its application in cutting-edge fields such as new energy and semiconductors.
conclusion
From building energy efficiency to medical innovation, from everyday wear to aerospace, polyurethane has become an indispensable material in modern industry due to its "thousand sided" characteristics. With the iteration of technology and the upgrading of environmental protection requirements, the application boundaries of polyurethane will continue to expand, providing more possibilities for the sustainable development of human society.