Cast polyurethane (CPU) is the most widely used and most produced polyurethane elastomer. It is a process in which oligomeric polyols, isocyanates, and chain extenders (crosslinkers) are used as raw materials, react polyols with isocyanates to form low-molecular weight prepolymers at specific temperatures, and then add chain extenders to form cast polyurethane. Because of its superior comprehensive performance, a wide range of hardness, high strength and elongation, excellent wear resistance,etc, it is becoming more and more popular.

Sustainability is one of the recent development themes in the polyurethane industry, and electric vehicle industry is bringing the new application requirements for polyurethane. This reflects the strong interest in sustainable products in the electric vehicle industry and will be a significant opportunity for the polyurethane industry.

Recently, the National Development and Reform Commission, the Ministry of Housing and Urban-Rural Development proposed the "Work Program for Accelerating Energy Conservation and Carbon Reduction in the Construction Sector" to improve the energy efficiency continuously, reduce carbon emissions and accelerate the improvement of the quality of green and low-carbon development in the construction sector.

In today's world, as the importance of environmental protection becomes more prominent, all industrials are looking for more sustainable and eco-friendly production methods. PU as a kind of material widely used in construction, home furnishing, automobile and other fields, which has attracted much attention in the environmental protection of its production and use. In recent years, polyurethane low-free MDI and TDI prepolymers are quietly changing the ecology of the polyurethane industry and contributing to our green life.

Nano polyurethane The so-called "nano polyurethane" refers to the organic/inorganic nanocomposite material formed by the inorganic filler dispersed in the polyurethane materials in nano size, and which has excellent properties that the general polyurethane materials does not have. Different fillers can be filled into different polyurethane material systems to make a lot of polyurethane composite systems, polyurethane nanocomposite coatings also have special properties or functions that the original components do not have, providing new possibilities for the preparation of high-performance new materials. so it is a new high-tech new material, which has broad prospects for applications.

Molded high resilience is a kind of flexible foam with excellent properties, such as light weight, softness, high resilience and high hand comfort, etc. and is also widely used in automobiles, furniture and other industries related to daily life. However, some problems in the production process are becoming more and more concerned by producers.

When everyone is full of confidence that China's polyurethane industry has entered a stage of rapid development, we should pay more attention to the future development direction of polyurethane.

For some thermoset polyurethane wastes with a low degree of crosslinking, it has a certain thermosoftening plasticity between 100-200°C. Within this problem, heating and pressurization can be directly bonded together without the use of adhesives.

As we all know, polyurethane is very versatile. At the same time, the factories of polyurethane foam produce a large amount of offcuts, mold spills, and waste products every year, as well as polyurethane waste in various fields need to be disposed. The recycling and reuse of these waste can not only reduce environmental pollution, but also conserve resources.

With excellent performance, lower price, low-carbon environmental protection and many other advantages, composite frame has a very broad application prospect in the photovoltaic industry.