1. What is rigid polyurethane foam blend polyol?
Rigid polyurethane foam blend polyol, commonly known as polyurethane white material, is composed of polyether monomer, foam leveling agent, cross-linking agent, catalyst, foaming agent, etc.
2. Application scope of rigid polyurethane foam formulated polyol
Widely used in building warm insulation, cold insulation, solar energy, water heaters, cold storage, beer insulation, refrigeration and other fields. Its application is not limited to building materials, but also extends to home appliances, food freezing and refrigeration equipment, industrial equipment and pipeline insulation.
2.1 Refrigeration and freezing equipment in household appliances and food industries
Rigid polyurethane foam is the most ideal insulation material for refrigeration and freezing equipment, and can achieve the most ideal thermal insulation efficiency.
2.2 Industrial equipment and pipelines insulation
Many brewing, chemical, storage and transportation enterprises have different requirements for warm and cold insulation. PU rigid foam is easy to construct, hygienic, and has excellent insulation effect. It is a good insulation material. Hot water pipes in urban and factory centralized heating projects generally use PU rigid foam as insulation material. Metal-faced rigid polyurethane sandwich panels are a new multifunctional building material that is easy to produce, construct and install. It has the characteristics of light weight, insulation, waterproof, and decoration.
2.3 Building materials industry
House construction is one of the most important application areas of PU rigid foam. The annual consumption of polyurethane foam for construction in the United States is about 300,000 tons. Rigid pu foam composite materials are also widely used in house construction, including thermal insulation and waterproofing of residential and office building roofs, thermal insulation of walls, and thermal insulation materials for cold storage, grain storage, etc. In addition, rigid polyurethane foam composite material boards can also be made into various foldable mobile houses for temporary outdoor housing.
2.4 Wood-imitation materials and sports and leisure equipment
High-density (density 300~700kg/m3) PU rigid foam or glass fiber reinforced rigid foam has the characteristics of high strength, good toughness, dense and tough crust, simple molding process, high production efficiency, etc. Its strength is higher than that of natural wood and its density is lower than that of wood. Sports equipment, some toys and sculptures can also be made of polyurethane whole skin semi-rigid foam and rigid foam.
2.5 Potting,filling materials and mine casting materials, etc.
Polyurethane foam is used as an anchoring material. When used, the two components are mixed and expanded, and can penetrate into the cracks. After solidification, it will bond the coal and rock mass into one body to achieve the purpose of reinforcement.
3. Characteristics of rigid polyurethane foam formulated polyol
The characteristics of rigid polyurethane foam blend polyol mainly include unique thermal insulation performance, light weight, simple design, high efficiency, fast progress, good quality, long life, fluorine-free foaming, and wide adaptability to the environment.
3.1 Rigid polyurethane foam blend polyol have low thermal conductivity and excellent thermal insulation performance. They have good warm insulation and sound insulation property. Rigid polyurethane foam formulated polyol have obvious waterproof and leak-proof effects.
3.2 It has excellent properties such as sound insulation, shock resistance, electrical insulation, heat resistance, cold resistance, and solvent resistance. It has been widely used in aerospace, shipbuilding, petroleum, electronic equipment, vehicles, food and other industrial sectors at home and abroad.
3.3 Lightweight and high in strength. PU rigid foam with lower density is mainly used as thermal insulation (insulation) material, while PU rigid foam with higher density can be used as structural material (imitation wood).
3.4 The rigid polyurethane foam blend polyol has strong adhesion to the base layer and excellent chemical resistance.
3.5 Rigid polyurethane foam formulated polyol has excellent cold resistance and freeze-thaw resistance. It is easy to construct and has a short construction period.
3.6 Rigid polyurethane foam blend polyol have a wide range of applications and can meet the energy-saving needs of different insulation bases. They do not contain benzene solvents and Freon, are non-toxic and environmentally friendly.
3.7 One material has multiple uses, and has functions such as heat preservation and waterproofing. The thermal conductivity of PU rigid foam is lower than that of polystyrene and other foam plastics and natural insulation materials, and it has excellent insulation effect. It can be cast or sprayed on site and combined with the insulation material to achieve better insulation effect. Therefore, in the field of thermal insulation, polyurethane foam is the preferred material and has a wide range of applications.
4. Comparison of rigid polyurethane foam blend polyol with other polymers
Compared with other polymers, blend polyol has the following differences:
a. Compared with epoxy resin, blend polyol has more toughness and strength.
b. Compared with polyester, blend polyol has higher temperature stability and heat resistance.
c. Compared with polyether ketone, blend polyol has better crack resistance and dimensional stability.
5. Summary
Formulated polyol is a polymer material with excellent performance, which is widely used in aerospace, electronic appliances, automobile manufacturing, building materials and other fields. In these fields, formulated polyol can play its high strength, high temperature stability, chemical corrosion resistance and other characteristics to meet the different needs of material use.
