Rigid foam full water foam series
Unlike physical blowing agents such as CFC-11 and cyclopentane, water is a chemical blowing agent, which reacts with isocyanate to produce urea in the process of foaming, and at the same time, CO2 is released, and the released CO2 is left in the pores to play the role of foaming, so the amount of CO2 released can be controlled by changing the amount of water in the process of preparing polyurethane foam, and polyurethane foam with different density can be obtained. Since CO2 is non-flammable and non-toxic, the ozone depletion potential (ODP) value is zero and the whole foaming process is simple, 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 thermal insulation performance of the foam is not good.
The viscosity of all-water foaming system is too large, and the flowability is not good.
CO2 diffusion speed is too fast, foam size stability is not good.
Applicable fields
Water-blown rigid polyurethane foam for central heating pipe insulation
Rigid water-blown polyurethane foam for building insulation
Rigid polyurethane foam for metal sandwich panels in discontinuous method
For on-site packaging
All-water foaming system also basically does not need to make any changes to the current production equipment can be safely produced, all the board manufacturing enterprises can use, all-water system product density will usually be ≥ 40Kg/m3 or more, thermal conductivity ≥ 0.026w/mk (25 ℃), that is, compared with HCFC-141b system product density ≥ 35Kg/m3 or more, the cost is mostly It will increase 15%, and the thermal conductivity of the whole water is difficult to reach the level of HCFC-141b system, especially the long-lasting thermal conductivity of the foam products.
Polyether polyol suitable for all-water foam
To be continued
Attachment: Catalyst related information (to be continued)
Polyurethane raw materials, products, engineering solutions experts
Raw material system
SH-8001 continuous sheet combination material (PIR)
SH-8001 series is a combination material of PIR system designed for continuous hard and soft surface layers. The product has good physical properties, flame retardant up to GB8624-2012 B1 grade standard, good dimensional stability, no shrinkage, no deformation, etc.
SH-8002 semi-rigid foam combination material
SH-8002 is a semi-rigid filling material designed for automobile dashboard, armrest and other products. The product has low density, high hardness, good filling fluidity, no hollow bubble, good bonding performance between skeleton and surface layer, good impact resistance and compression resistance.
SH-8003 packaging combination material
SH-8003 is designed for postal express on-site foam packaging, handicrafts, precision instruments, meters, fragile handicrafts used in transportation and storage, the product has the advantages of light weight, good shock absorption performance, on-site foam easy to operate, etc.
SH-8004 high resilience combination material
SH-8004 is designed 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 resilience and flame retardancy.
SH-8005 Cold storage panel combination material
SH-8005 is specially designed for the production of intermittent cold storage panels, with low density, fast demoulding and flame retardant performance up to B1 level.
SH-8006 Solar Combination Material
SH-8006 is specially designed for the production of solar water heater; solar water tank insulation, the product has the characteristics of good fluidity, high closed-hole rate, low density, stable foam size and excellent adiabatic performance.
SH-8007 Self-crusting combination material
SH-8007 is specially designed for the production of car steering wheels, car handrails, car bumpers, fitness equipment, pads and backrests in medical instruments, etc. The product has the advantages of moderate hardness, beautiful appearance and good wear resistance.
SH-8008 wood-like combination material
SH-8008 type is specially designed for production process of bed head, table and chair, 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 compound
Model SH-8009 is designed for intermittent, mold production of block foam. The product is mainly used in the insulation of refrigerated trucks, containers, exterior walls and other industries, and the production of flower clay for inserting dried flowers. The product can be cut arbitrarily according to the customer’s requirements, and has the advantages of light weight, good dimensional stability and flame retardant up to B1 grade.
SH-8010 All-water type pipe combination material
SH-8010 is specially designed for the production of environmentally friendly heating pipes, with the advantages of energy saving and environmental protection, good fluidity and high output rate.
SH-8011 Spraying combination material
SH-8011 is specially designed for civil construction cold storage, building exterior wall insulation, roof insulation and waterproof integration and other kinds of on-site foam insulation and customized. The product has the advantages of flexible and convenient construction, heat preservation and waterproofing, good density performance, etc. The flame retardant performance can reach B1 level.
SH-8012 All water-based spraying combination material
SH-8012 is specially designed for bus roofs, stadiums and indoor thermal and sound insulation and sound absorption.
The complete formula system can meet customers’ individual needs.
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