Polyurethane(PU) are unique polymeric synthetic chemical with outstanding properties and a wide range of applications. In the manufacturing process, polyurethane can be combined with many different materials and chemicals to produce a wide variety of products. For many applications, such as construction, automotive, furniture, and footwear products, polyurethane products are an excellent choice. The reason for this is that polyurethane products have excellent strength, abrasion, weathering, and chemical resistance, while also providing good insulation and comfort. Therefore, if you are looking for an excellent material to manufacture your product or application, polyurethane products are certainly an option to consider.
High Abrasion Resistance
The excellent abrasion resistance of polyurethane products is due to their chemical structure and manufacturing process which gives them the following properties:
- High molecular weight: Polyurethane products usually have a high molecular weight, which makes them more wear-resistant and durable. High molecular weight polyurethane products can resist abrasion and tear, thus extending their service life.
- Strength: The molecular chain structure of polyurethane products gives them high strength and hardness to resist damage when subjected to friction or abrasion.
- Elasticity: Polyurethane products have a certain degree of elasticity and can be deformed without breaking when they are impacted or squeezed, thus protecting their surfaces from wear and tear.
- Good adhesion: Polyurethane products can be combined with different materials and chemicals in the manufacturing process to form strong bonding points, thus enhancing their wear resistance and durability.
- Surface treatment: Polyurethane products can be subjected to different surface treatments, such as the addition of coatings or surface treatment agents, to improve their surface hardness and wear resistance.
As a result, polyurethane products have excellent abrasion resistance and can be used in many different applications, such as parts for automotive and industrial equipment, surface coverings for footwear and furniture products, and so on.
Anti-Aging
There are several reasons why polyurethane products have excellent anti-aging properties:
- Chemical stability: Polyurethane products have good chemical stability and can resist the erosion and corrosion of many chemicals, thus slowing down their aging speed.
- Low permeability: Polyurethane products have low permeability, which can effectively prevent oxygen and moisture from entering their interior, thus slowing down their aging rate.
- Anti-bacteria and anti-mold: Polyurethane products can be added with some anti-bacteria and anti-mold additives, which can effectively resist the erosion of bacteria, mold, and other microorganisms, thus slowing down their aging speed.
- Excellent physical properties: Polyurethane products have good strength, hardness, and wear resistance, which can resist the occurrence of physical damage and thus slow down their aging speed.
To sum up, polyurethane products have excellent anti-aging properties and can maintain their good appearance and performance under various harsh environmental conditions, so they are widely used in various fields, such as construction, automobile, footwear, furniture, and so on.
Lightweight
Polyurethane products usually have a lighter weight compared to other materials, which is mainly due to the following factors:
- Low density: Polyurethane products have low density, usually between 1.0~~1.2g/cm³, which is only about 1/3~1/4 of the density of metal compared to metal materials, which is one of the main reasons for the lightness of polyurethane products.
- Excellent strength-to-weight ratio: While polyurethane products have a lower density, they usually also have higher strength and hardness, which can maintain structural stability when under stress, which also makes polyurethane products have an excellent strength-to-weight ratio, i.e. the maximum load they can bear per unit mass is relatively high.
- Plasticity and elasticity: Polyurethane products have certain plasticity and elasticity, and can undergo certain deformation without breaking when subjected to forces such as extrusion or bending, which also makes polyurethane products lighter.
- Manufacturing process: The manufacturing process of polyurethane products is relatively simple, and can be produced by spraying and injection molding, and so on. The processing cost is lower compared with other materials, and it is also easier to achieve a lighter weight.
In general, polyurethane products have the characteristics of low density, excellent strength-to-weight ratio, plasticity and elasticity, and a relatively simple manufacturing process, which combine to make polyurethane products lighter in weight compared to other materials. Therefore, polyurethane products are widely used in automobiles, light aircraft, ships, electronic equipment, construction, and other fields, which can effectively reduce the weight burden of products and improve their performance.
Good Elasticity
Polyurethane products usually have good elasticity, which is mainly due to several factors:
- Molecular structure: The molecular structure of polyurethane products contains a large number of ester bonds and urea bonds, and the structure of these bonds enables polyurethane molecules to form a regular and alternately arranged chain structure. This chain structure makes polyurethane molecules have good flexibility and plasticity and can withstand certain stretching and bending.
- Reactant ratio: In the production process of polyurethane products, the reaction ratio of polyether and isocyanate will affect the flexibility of polyurethane products. If the content of polyether is higher, it will make the molecular chain of polyurethane longer and the bond structure between molecules looser, resulting in better elasticity of polyurethane products. On the contrary, if the content of isocyanate is higher, the molecular chain of polyurethane products will be shorter and the bond structure between molecules will be tighter, resulting in less elasticity of polyurethane products.
- Cross-linked structure: Polyurethane products contain a cross-linked structure, which can enhance the strength and stability of polyurethane molecules and also increase the elasticity of polyurethane products. The introduction of a cross-linked structure can make polyurethane products have better resilience and wear resistance and also can improve the fatigue life of polyurethane products.
- Appropriate additives: Adding some additives with good elasticity, such as an elastomer, silicone rubber, and fluorine rubber inappropriate amount can improve the elasticity of polyurethane products. These additives form interpenetrating network structures with polyurethane products, which can increase the elasticity and toughness of polyurethane products.
To sum up, polyurethane products have good elasticity because of their flexible molecular structure, suitable ratio of reactants, stable cross-linked structure, and proper addition of elastic agents. Polyurethane products are widely used in automobiles, aerospace, construction, furniture, shoes, sports equipment, medical equipment, and other fields, where products with high elasticity requirements are especially suitable.
Good Adhesion
Polyurethane products have good adhesive properties due to several factors:
- Chemical structure: The molecular structure of polyurethane products contains a large number of ester bonds and urea bonds, and the structure of these bonds enables polyurethane molecules to form strong chemical bonds with other materials. The urea bonds in polyurethane products can form hydrogen bonds with hydroxyl groups in other materials, thus achieving chemical bonding. The ester bond in polyurethane, on the other hand, can react with the carboxyl groups in other materials to form ester bonds, which can also achieve chemical bonding.
- Cross-linked structure: Polyurethane products contain cross-linked structures, which can increase the strength and stability of polyurethane molecules and thus enhance the bonding strength of polyurethane products. Adding the right amount of cross-linking agent to polyurethane products can form more cross-linked structures, thus improving the bonding performance of polyurethane products.
- Appropriate adhesive: Adding an appropriate amount of adhesive into polyurethane products can improve the surface wettability of polyurethane products and thus enhance the adhesion of polyurethane products with other materials. Common bonding agents include isocyanate, polyurethane, polyester, and so on.
- Surface treatment: Appropriate treatment on the surface of polyurethane products, such as grinding, sandblasting, and cleaning, can remove the dirt and oxidation layer on the surface, increase the active groups on the surface, and improve the adhesion between polyurethane products and other materials.
In summary, polyurethane products have good adhesive properties due to their suitable chemical structure, cross-linked structure, appropriate adhesive, and surface treatment. Polyurethane products are widely used in construction, automobiles, furniture, shoes, medical devices, and electronic appliances, where products with high bonding requirements are particularly suitable.
Good Corrosion Resistance
Polyurethane products have good corrosion resistance, which is mainly due to the following factors:
- The high density of polyurethane molecules: The density of polyurethane molecules is higher than general materials, so polyurethane products are more compact and not easily penetrated by corrosive substances, which makes polyurethane products have a certain degree of corrosion resistance.
- Structure of polyurethane molecule: Polyurethane molecule contains a large number of ester bonds and urea bonds, and the structure of these bonds can increase the chemical stability and corrosion resistance of polyurethane products. These bonds make it difficult for the oxides and water molecules in the polyurethane molecules to enter inside the polyurethane molecules, thus reducing the corrosion of the polyurethane products.
- Adding anti-corrosive agent: Adding an appropriate amount of anti-corrosive agent to polyurethane products can prevent corrosive substances from eroding polyurethane products, thus enhancing the corrosion resistance of polyurethane products. Common anti-corrosion agents include zinc oxide, zinc phosphate, potassium chromate, and so on.
- Surface treatment: Appropriate treatment on the surface of polyurethane products, such as spraying, and coating, can form a protective layer to prevent the erosion of corrosive substances on polyurethane products, thus improving the corrosion resistance of polyurethane products.
In summary, polyurethane products have high density, stable structure, added anti-corrosive agents, and surface treatment, so they have good corrosion resistance. Polyurethane products are widely used in chemical, petroleum, marine engineering, automobile, construction, and other fields, especially in environments with high corrosiveness.
Good Insulation
Polyurethane products have good insulation properties, which are mainly due to several factors:
- High dielectric constant: The dielectric constant of polyurethane is relatively high, so it can form a good electrical insulation layer and stop the flow of current, thus having good insulating properties.
- Molecular structure of polyurethane molecules: The structure of polyurethane molecules contains a large number of ester bonds and urea bonds, and the structure of these bonds can increase the chemical stability and high-temperature resistance of polyurethane products, thus improving the insulation performance of polyurethane products.
- The density of polyurethane products: The density of polyurethane products is relatively high, which makes polyurethane products more compact and not easy to be penetrated by air, and water molecules, thus reducing the flow of current and having good insulating performance.
- Surface treatment of polyurethane products: Appropriate treatment on the surface of polyurethane products, such as coating, can form a protective layer, thus preventing the erosion of polyurethane products by external substances, thus improving the insulation performance of polyurethane products.
In summary, polyurethane products have good insulating properties because of their high dielectric constant, stable molecular structure, high density, and surface treatment. Polyurethane products are widely used in the fields of electronics, electric power, aerospace, military industry, transportation, and so on. They are especially suitable for applications requiring high insulation properties.
Water Resistance
Polyurethane products have excellent waterproof performance, which is mainly due to the following factors:
- Chemical properties of polyurethane products: Polyurethane products have strong acid and alkali resistance and oxidation resistance, and are not easily eroded by water molecules and other chemical substances, so polyurethane products can maintain waterproofness for a long time.
- Structure of polyurethane products: The molecular structure of polyurethane products contains a large number of ester bonds and urea bonds, and the structure of these bonds can increase the chemical stability and high-temperature resistance of polyurethane products, thus improving the waterproof performance of polyurethane products.
- Physical properties of polyurethane products: The density of polyurethane products is high, which is not easily penetrated by water molecules. In addition, polyurethane products also have good flexibility and elasticity, which can adapt to different shapes and deformation of the surface, thus forming a complete waterproof layer.
- Surface treatment of polyurethane products: Appropriate treatment on the surface of polyurethane products, such as coating, can form a protective layer, thus preventing the erosion of polyurethane products by water molecules from outside, thus improving the waterproof performance of polyurethane products.
To sum up, polyurethane products have excellent waterproof performance because of their chemical resistance, stable molecular structure, high density, and surface treatment. Polyurethane products are widely used in construction, underground engineering, transportation, ships, and other fields, and are especially suitable for applications requiring long-term waterproofing.
Easy to Process
Polyurethane products are easy to process for the following reasons:
- Polyurethane products have good flowability: Polyurethane products have good flowability during processing and are easy to fill the mold or coat the surface of the cover. This is because polyurethane products can be processed with controlled viscosity and fluidity, allowing them to be adapted to different shapes and sizes of coated surfaces.
- Polyurethane products have better adjustability: The chemical structure of polyurethane products can be adjusted by controlling the raw material ratios and reaction conditions to obtain different physical properties and attributes. This means that polyurethane products can be customized to meet the needs of different industries and applications.
- Polyurethane products have good degradability: Polyurethane products can be made easier to process and handle by adding appropriate degradation agents during processing. These degraders can reduce the viscosity and viscosity of polyurethane products, making them easier to flow and fill, thus improving processing efficiency.
- Polyurethane products have excellent adhesive properties: Polyurethane products can be bonded to a variety of substrates, such as metal, plastic, wood, and so on. This means that polyurethane products can be used with other materials, thus expanding their application areas and functions.
In summary, polyurethane products are easy to process mainly because of their good flowability, tuneability, degradability, and bonding properties. These properties make polyurethane products a very flexible and easy-to-process material for various applications such as construction, automotive, furniture, electronics, medical, and so on.
Environmental Protection
Polyurethane products have a number of advantages in terms of environmental protection, mainly including the following:
- Recyclable polyurethane products: Polyurethane products can be recycled and reused, and can be used multiple times in the industrial cycle, reducing waste and waste of resources.
- Low carbon emission in the production process of polyurethane products: The emission of greenhouse gases such as carbon dioxide can be reduced by using more environmentally friendly raw materials and production processes in the production of polyurethane products.
- Degradability of polyurethane products: Polyurethane products can be degraded naturally within a certain period of time by adding appropriate degradation agents, which will not cause pollution and harm to the environment.
- Recyclability of polyurethane products: Polyurethane products can be recycled and reused by physical or chemical methods, which can reduce the impact on the environment while reducing resource consumption.
In addition, polyurethane products also have some other environmental characteristics, such as its manufacturing process does not produce ozone-depleting substances, which is less harmful to human beings and the environment; the long service life of polyurethane products can reduce the waste caused by frequent replacement because of the short service life of the products, and so on.
In general, polyurethane products have some advantages in terms of environmental protection, but it is also necessary to pay attention to some environmental impacts that may arise during their production and use, such as energy consumption and wastewater and gas treatment. Therefore, it is necessary to follow the principle of environmental protection when using polyurethane products and take corresponding measures to reduce the impact on the environment.
خاتمة
This article mainly talks about the characteristics of polyurethane products such as durability, elasticity, and environmental protection, hope it will be helpful to you. We are a professional manufacturer of polyurethane products, mainly dealing with polyurethane massage pillows, frisbees, toy balls, and so on. We support wholesale and customization, so if you are interested, please feel free to contact us.
