01 Door Industry Innovation and Advantages of Polyurethane Hard Foam
With the development of door industry, polyurethane rigid foam, as a new filling material, is gradually becoming the new favorite of door industry. Its superiority lies in its environmental performance and excellent physical properties, which significantly improve the appearance and durability of the door body. Next, we will delve into the advantages of polyurethane rigid foam filled doors, helping door manufacturers better understand and apply this innovative material.
Introduction and advantages of polyurethane rigid foam
Polyurethane rigid foam, or PU for short, is a kind of rigid foam plastic produced by chemical reaction after mixing two liquid chemical materials. Its raw materials include organic isocyanate (material A) and polyol (polyether polyol, with foaming agent, catalyst, flame retardant, etc. added), which are injected into the foaming cavity under the action of high-pressure machine to form a hard foam body. Polyurethane material is known as the thermal insulation material with excellent performance in the world at present. Its hard foam has excellent strength, light weight, low thermal conductivity, heat resistance, aging resistance, corrosion resistance, and water resistance. At the same time, it is easy to bond with other materials and will not produce molten drops when burning.
Production and sales status of polyurethane filled doors
At present, many leading enterprises in the door industry have entered the production of polyurethane filled doors. In addition, two new factories have been established in Chengdu and the surrounding areas of Jiangxi, specializing in the production of high-end products in this category. In the market, polyurethane filled doors are positioned as a high-end category due to their technological content and excellent performance, and their price is 200 to 400 yuan higher than that of honeycomb paper filled doors. This indicates that polyurethane filled doors have extremely broad market development prospects.
Key characteristics of polyurethane filled doors
Firstly, polyurethane filled doors have excellent strength and stability. The interior is filled with polymer material, which, after liquid reaction solidification, not only has excellent environmental performance, but also significantly enhances the toughness of the door frame, greatly improving the strength of the door and ensuring that it never deforms. Whether subjected to heavy pressure, prolonged immersion in water, or fire, it can maintain its original shape. This technology effectively solves the problem of traditional composite doors and wooden doors being prone to deformation and moisture.
Secondly, polyurethane filled doors also perform well in improving the pressure resistance strength of the door body. Some anti-theft door manufacturers increase the pressure resistance of the door by adding internal reinforcement ribs, but this method not only increases costs and processes, but also makes it difficult to ensure the flatness and surface quality of the door body. Polyurethane filled doors can effectively solve this problem, and their filling strength can even be directly used for the construction of floor slabs and walls in lightweight buildings, demonstrating the superiority of their filling effect.
In addition, polyurethane filled doors also have good sound insulation effects. Due to the excellent sound insulation performance of the polymer material used inside, this type of door is often used as a thermal insulation layer in buildings, and even as a sound insulation board on some elevated roads. Its sound insulation effect is better than that of solid wood. Therefore, polyurethane filled doors can completely solve the sound insulation problem of doors and enhance the user experience.
Finally, the texture of polyurethane filled doors is also more outstanding. Compared to doors filled with honeycomb paper, its heavy feel and the deep sound of knocking on the door are closer to solid wood doors. Moreover, no matter what type of door is filled with polyurethane foam, its grade can be significantly improved, and its cost is equivalent to that of making wooden doors, which has a very high cost performance advantage.
02 Cost and Market Comparison
Comparison of Production Costs
The cost of filling the door body with polyurethane foam is only about 40 yuan. If calculated based on an annual output of 10000 units, even considering equipment investment, the total cost is only about 55 yuan. From the perspective of product added value, even if the profit of each polyurethane foam door increases by 100 yuan, the profit growth of 10000 doors can reach 1 million yuan.
Comparison between Process and Environmental Protection
Polyurethane foam material has excellent adhesion with steel and wood, simplifying the production process and eliminating the need for adhesive coating. The characteristics of on-site injection molding enable foam to automatically fill the gap, perfectly integrate with the door body, and save the tedious steps of trimming the filler. This enables workers to easily produce high-quality filling doors, significantly reducing labor intensity and labor costs. Traditional asbestos filling materials are strictly restricted in some developed countries due to carcinogenic issues. Solid wood filling requires a large amount of glue and consumes resources. In contrast, polyurethane foam material is safe, non-toxic, and has good thermal insulation and sound insulation effect. It is a new type of material that is both energy-saving and environmental friendly.
03 Product market prospects
In the harsh market environment, polyurethane filled doors have become an ideal choice for door industry innovation due to their high added value, providing huge development opportunities for enterprises. In the current market environment where labor and material costs continue to rise, traditional production processes and popular quality products are facing challenges. Only by developing new products with high added value can enterprises maintain competitiveness in the future market. The high strength, stability, and superiority of polyurethane filled doors make them an ideal choice for door industry enterprises to transform and upgrade.
Polyurethane foam filled door is not a new innovation this year. In fact, some large door enterprises have begun to explore its application several years ago. After years of continuous development and market promotion, this product has gradually gained widespread recognition from the market and consumers, and has now become a highly sought after high-end choice in the market. For emerging door enterprises, this is undoubtedly an excellent opportunity to enter the market. We look forward to the polyurethane raw materials produced by Polydor bringing you more business opportunities and value.