In recent years, the popularity of hard polyurethane foam has been very high and the parts produced using this type of foam are rapidly expanding the market and general use. This type of hard polyurethane foam is known in the Iranian commercial market as wood foam and in the global market as Wood Imitation Polyurethane Foam.
Today, due to the expansion of the decoration industry and the high cost of handmade decorative goods, along with the market need for mass production and overproduction of these parts, has led manufacturers to use a variety of polymeric materials to replace wood in this industry. Polyurethane foam is one of the most important of them. A special group of hard polyurethane foam has been proposed as one of the best alternatives to wooden decorative parts.
Rigid Polyurethane Blend Polyols for Wood Imitation are a two-components closed-cell polyurethane foam system. This product is chemical blowing agent based system which premixed with polyether polyols, silicone surfactant, catalysts and etc., it is suitable for injection use for wood imitation production.
The wood imitation material is widely used for produce decorative building material, decorative cornice and board, sofa leg, carved furniture and art ware, decorative wall panel, picture frame, mirror frame, wood imitation furniture spare parts, European classical style furniture, shoe mold, large carving products, ski board core, auto spare parts, car interior furnishing, etc.
Compared with natural wood, polyurethane imitation wood material has obvious advantage: molding. It can be applied in mold mass production of various shapes, especially good at carving patterns. Carved wood product looks vivid. Repeated molding performance is very good, molding process is simple, time-saving and efficient; The products appearance and performance are similar to wood, strength is higher, density lower, can be dug, saw or drill; Also has excellent acid and alkali proof and anti-corrosion performance.
Features of polyurethane foam wood
– Suitable physical and mechanical properties
– Simple production and molding process
– Appropriate appearance level
– Low weight of manufactured parts
– High production speed
The liquid state of polyurethane foam raw materials facilitates the possibility of molding complex decorative parts and the reproducibility of uniform production of these parts. Depending on the appearance, required properties, foam density and part size, molds used in the production of polyurethane wood foam from aluminum or steel, rubber or silicone, epoxy resin or other materials used in the molding industry are selected. Injection of this type of foam is done according to the production volume and size of parts in the form of manual injection, injection with low pressure device and injection with high pressure device.
The most important feature in polyurethane wood foam is its density. According to the expected physical and mechanical properties of polyurethane wood foam, companies producing raw materials adjust the density of this type of foam between 100 to 1000 kg per cubic meter. It should be noted that with increasing density, physical and mechanical properties will increase and on the other hand, the weight of manufactured parts will also increase.
The advantage of imitation wood polyurethane rigid foam:
Good liquidity, uniform density, good compressive strength and size stability, light weight,
free maintenance, corrosion resistance, waterproof, sound insulation, flame retardant,
save manpower and material; Green CFC-free foaming technique, excellent self-adhesive
performance (without any intermediate bonding materials), strong bonding effect with
material such as wood, metal, brick, glass, etc; Stable chemical properties, long service
life and does not make environment pollution; Closed cell, closed rate was 95%.