Hard foam full water foaming series
Different from physical foaming agents such as CFC-11 and cyclopentane, water is a chemical foaming agent. During the foaming process, it reacts with isocyanate to form urea and releases CO2 at the same time. The released CO2 remains in the cells to play a role. Foaming effect, so in the process of preparing polyurethane foam, the amount of CO2 released can be controlled by changing the amount of water to obtain polyurethane foams of different densities. Since CO2 is non-flammable and non-toxic, its ozone depletion potential (ODP) value is zero and the entire foaming process is simple to operate, so there is no need to modify the existing equipment in the factory.
Disadvantages of all-water foaming technology
The thermal conductivity of CO2 is high, and the foam insulation performance is poor.
The viscosity of the all-water foaming system is too high and the flow performance is not good.
The diffusion rate of CO2 is too fast, and the dimensional stability of the foam is not good.
Application fields
Fully water-foamed rigid polyurethane foam used in central heating pipe insulation
Fully water-foamed rigid polyurethane foam rigid polyurethane foam used in building insulation
Used in discontinuous metal sandwich panels and polyurethane rigid foam
Apply to on-site packaging
The all-water foaming system basically does not require any changes to the current production equipment to produce safely. All board manufacturers can use it. The product density of the all-water system is usually above 40Kg/m3, and the thermal conductivity is Coefficient ≥0.026w/mk (25℃), which means that compared with the density of HCFC-141b system products ≥35Kg/m3 or above, the cost will mostly increase by 15%, and the thermal conductivity of full water is difficult to reach the level of HCFC-141b system , especially the long-term thermal conductivity of foam products.
Polyether polyols suitable for all-water foam
To be continued
Attachment: Catalyst related information (to be continued)
Experts in polyurethane raw materials, products, and engineering solutions
Raw material system
SH-8001 continuous plate material (PIR)
SH-8001 series is a PIR system combination material specially designed for continuous hard surface layer and soft surface layer. The product has good physical properties, flame retardancy reaches GB8624-2012 B1 level standard, good dimensional stability, no shrinkage, Features such as no deformation.
SH-8002 semi-rigid foam combination material
SH-8002 type is a semi-rigid filling compound specially designed for automobile dashboards, armrests and other products. The product has low density, high hardness, good filling fluidity, no voids, and good structure and surface. The bonding performance of the layer is good, and it has good impact resistance and compression resistance.
SH-8003 packaging combination material
SH-8003 type is specially designed for postal express on-site foam packaging, handicrafts, precision instruments, meters, and fragile handicrafts used during transportation and storage. The product has the advantages of light weight, good shock absorption performance, and easy operation of on-site foaming.
SH-8004 high resilience composite material
SH-8004 type is specially used for the production of car seats, car interior parts, furniture electric backrests, sofas and other products. It has the advantages of one-time molding, good rebound performance, and good flame retardant performance.
SH-8005 cold storage plate assembly
SH-8005 type is a special combination material specially used for the production of intermittent cold storage panels. The product has low density, fast demoulding, and the flame retardant performance can reach B1 level standard.
SH-8006 Solar Combination Material
SH-8006 type is specially designed for the production of solar water heaters; the insulation of solar water tanks is specially customized. The product has the characteristics of good fluidity, high closed cell rate, low density, stable foam size and excellent thermal insulation performance.
SH-8007 self-skinning composite material
SH-8007 type is specially designed for the production of car steering wheels, car armrests, car bumpers, fitness equipment, cushions, backrests, etc. in medical instruments. The product has the advantages of moderate hardness, beautiful appearance, and good wear resistance.
SH-8008 imitation wood composite material
SH-8008 model is specially customized for the production of bedside, tables and chairs, doors and windows, furniture, indoor and outdoor decorative lines and other products. The product has the advantages of beautiful appearance, fast molding and high production efficiency.
SH-8009 Rigid block foam composite
SH-8009 type is specially designed for intermittent, mold production of block foam. The products are mainly used in the insulation of refrigerated trucks, containers, exterior walls and other industries, and in the production of flower mud for dried flowers. The products can be cut at will according to customer requirements. They are light in weight, have good dimensional stability, and are flame retardant up to B1 level. advantage.
SH-8010 all-water type pipe assembly material
SH-8010 is specially designed for the production of environmentally friendly heating pipes. The product has the advantages of energy saving, environmental protection, good fluidity, and high yield rate.
SH-8011 spray coating composition
SH-8011 is specially customized for various on-site foaming insulation such as civil cold storage, building exterior wall insulation, integrated roof insulation and waterproofing. The product has the advantages of flexible and convenient construction, thermal insulation and waterproofing, good density performance, and flame retardant performance up to B1 level.
SH-8012 fully water-based spray coating composition
SH-8012 is a special product for bus ceilings, sports venues and indoor thermal insulation, sound insulation and sound absorption. The density of this product can reach about 15kg/m3, and the output rate can reach about 40m3/ton.
The complete formula system can meet the personalized needs of customers.
