The conventional design of the top insulation of the cold storage often adopts the 200 mm thick rigid polyurethane foam sprayed along the roof beam plate, referred to as the polyurethane insulation layer, and the surface of the insulation layer is painted with polymer mortar (steel wire mesh) and other structural practices.

Rebonded foam is made from reclaimed foam & scrap foam.It has the following advantages.

Polyurethane rigid foam with thermal insulation effect is widely used in refrigerators and freezers, but there are many problems encountered in the foaming process, and the following is the analysis of some common problems

Carbon dioxide is produced in large quantities as a by-product of many industrial processes, resulting in a sustained increase in atmospheric carbon dioxide concentrations above 420 ppm. This increase has raised serious concerns about climate change and prompted global efforts to mitigate its impacts.

The yellowing of polyurethane sponge has always been a problem that plagues sponge manufacturers and polyol manufacturers. Many sponge manufacturers, especially some high-end sponge manufacturers, have tried to improve the anti-yellowing performance of sponge by adding antioxidants and light stabilizers, but the results are not significant. In this article, we will analyze the causes of yellowing of sponge systematically based on the upstream and downstream characteristics of polyol and sponge production, and elaborate the corresponding solutions.

Flexible polyurethane foam is a polymer produced from the reaction of polyols and isocyanates. It is characterized by a cellular structure with low density, good elastic recovery, sound absorption, air permeability, heat preservation and other properties.  

Polyurethane flexible foam has always been the preferred material for car seats due to its durability and comfort, and the material has even greater potential: it can also help car manufacturers reduce CO2 emissions and the use of fossil resources in the production of car seat cushions significantly.

With the expansion of factory and the continuous improvement of production capacity, QICHEN company has increased its investment in R&D, introduced new equipments and a group of outstanding technical personnel, strengthened the R&D team, and committed to providing customers with better products, better technical support, more competitive prices, more convenient and efficient services~

Polyurethane spraying is a new type of synthetic material with the integration of thermal insulation and waterproof functions. Because of its low thermal conductivity, light weight, good heat resistance, efficient insulation, good sealing, easy to bond with concrete, wall, wood and other substrates, no cracking, no shedding, no corrosion, etc. For various shapes of substrates, whether it is a plane, elevation or top surface, whether it is a round, spherical or other irregular shape of complex objects, can be  sprayed foaming processing directly. Therefore, it is often used in cold storage, exterior walls, walls, building insulation, equipment and pipeline insulation, storage tank insulation, breeding farms, steel structure workshops, light steel villas and other projects of thermal insulation and spraying construction.