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Common types of special-shaped sponges Common types of special-shaped sponges TIME:21-11-17 1. Rubber sponge. One of the sponges is made by foaming the main material of latex raw materials. It has rubber characteristics, good elasticity, good resilience and does not deform, but it is ex.....
How to store sponge composites How to store sponge composites TIME:21-11-09 We must know that the storage of sponges must meet certain conditions and requirements, otherwise incomplete storage will cause corrosion of the sponges. High-quality sponges cannot be separated from .....
Characteristics of composite polyurethane insulation board Characteristics of composite polyurethane insulation board TIME:21-11-02 1. Rigid polyurethane has low thermal conductivity and good thermal performance. When the bulk density of rigid polyurethane is 35~40 kg/m3, its thermal conductivity is only 0.018~0.023w/(MK), which i.....
Common polyurethane foaming process for car seats Common polyurethane foaming process for car seats TIME:21-10-27 Thermal foamingThermal foaming refers to a foaming process in which the mold completes the reaction in the treatment furnace (the temperature in the furnace is generally between 220°C and 250°C, and t.....
Advantages and disadvantages of polyurethane insulation Advantages and disadvantages of polyurethane insulation TIME:21-10-19 Advantages:(1) For substrates of various shapes, whether it is a flat surface, a vertical surface or a top surface, whether it is a round, spherical or other irregularly shaped complex objects, it can.....
Factors affecting the performance of foam plastics Factors affecting the performance of foam plastics TIME:21-10-11 1. Processing factorsThe performance of foam plastics is affected by processing factors, mainly including equipment, process control and operating experience of processing personnel. In the proce.....
Storage and safe operation of rigid polyurethane composite materials Storage and safe operation of rigid polyurethane composite materials TIME:21-10-04 1. StorageIsocyanate (commonly known as black material) and combined polyether (commonly known as white material) must be stored in a sealed container which is to isolate air and prevent moisture.....
Classification of polyurethane adhesives Classification of polyurethane adhesives TIME:21-09-22 Polyurethane adhesive is an environmentally friendly adhesive. It is an important part of the rapidly developing polyurethane resin. It has excellent properties and has been widely used in many aspect.....
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