Opanpan Door Skins
In recent years, with the continuous upgrading and iteration of the decoration market, composite wooden doors, as a new option with novel style, good quality and low price, are rapidly entering the homes of most people. When facing composite wooden doors with various styles and colors, we should shift our attention from the colors and styles and focus on the filling materials of composite wooden doors, especially when we are preparing to purchase wooden doors.
Common filling materials in composite wooden doors include polystyrene foam, hemp core board, honeycomb paper, solid wood square, bridge hole mechanical board, graphite homogeneous board, etc. This article will introduce the six common composite wooden door filling materials listed above in detail. It is convenient for you to have the opportunity to open its surface door skin and take a look at what is inside when choosing a composite wooden door.
polystyrene foam
In composite wooden doors, the definition of polystyrene foam, which is often used as a filler, is: polystyrene foam is a material made of polystyrene resin as the main body and additives such as foaming agents. It is made by adding a certain amount of foaming agent to the molecular chain of polystyrene, decomposing it by heating and releasing gas, thereby producing a large number of bubbles, and finally forming a lightweight, insulating, shock-absorbing material. This foam has a closed-cell structure, low water absorption, and excellent water resistance; low density, good mechanical strength, and excellent cushioning performance; good processability and easy molding; good colorability, strong temperature adaptability, and excellent anti-radioactivity.
As a filler for composite wooden doors, polystyrene foam has excellent overall performance. The specific performance is as follows:
| Thermal insulation | Polystyrene foam is lightweight, strong, and has good thermal insulation properties. It can effectively block the impact of external temperature on the interior. |
| Sound insulation effect | This material has a good sound absorption effect. Composite wooden doors filled with polystyrene foam can provide better sound insulation and effectively block the entry of noise. |
| Fire resistance | Polystyrene foam has good fire resistance and can delay the spread of fire, buying more time for escape. |
| Stability and durability | Foam filling can fill the gap between the door frame and the wall, making the door more solid and reliable, and not easily affected by moisture, maintaining the stability and service life of the door body. |
| Environmental performance | Polystyrene foam has little impact on the environment during production and use. Some products can be recycled and meet environmental protection requirements. |
Hemp core board
Hemp core board is used as filler in composite wooden doors. It is a board made of hemp fiber materials (such as flax, jute, etc.) as the main raw material and processed through a specific process.
Hemp core board as filler for composite wooden doors has good overall performance. The specific performance is as follows:
| Material characteristics | Hemp core board is made of plant fiber and is lightweight and strong. |
| Sound insulation and heat preservation | Hemp core board has good sound insulation effect and can effectively block the transmission of noise.At the same time, it also has good heat preservation performance, which helps to maintain the stability of indoor temperatures. |
| Environmental performance | As a filler, hemp core board has good environmental performance and meets the needs of modern homes for green building materials. |
| Fireproof performance | Hemp core board also has certain fireproof performance, which can increase the safety of wooden doors. |
Honeycomb paper
Honeycomb paper is a new type of sandwich structure environmentally friendly and energy-saving material made according to the principle of natural honeycomb structure. It is made by connecting corrugated paper into countless hollow three-dimensional regular hexagons by gluing to form an integral force-bearing member – paper core, and gluing surface paper on both sides. This structure is not only beautiful, but also can maximize the use of space and materials. It has the characteristics of light weight, high strength, good cushioning and impact resistance, low cost, and environmental protection and recyclability.
As a filler for composite wooden doors, honeycomb paper has multi-faceted overall performance.
- Advantages
Sound insulation and heat preservation: The porous structure of honeycomb paper gives it good sound absorption performance, effectively enhancing the sound insulation effect of the door. At the same time, its closed structure can also improve the heat insulation performance of the door.
Lightweight and high strength: Honeycomb paper adopts a honeycomb structure to obtain maximum strength and rigidity with minimal material consumption, making the door body both light and strong.
- Disadvantages
Limited sound insulation and load-bearing capacity: Although honeycomb paper has a certain sound insulation effect, its sound insulation and load-bearing capacity are relatively weak compared to other filling materials such as solid wood or polystyrene foam.
Average durability: Doors filled with honeycomb paper may not be durable enough due to the characteristics of the material and are easily damaged by external forces.
Solid wood square
Solid wood square, commonly known as square wood, is a kind of wood strip with a rectangular or square cross section. It is mainly processed from pine, basswood, fir and other trees, and the wood is sawn into square strips of certain specifications and shapes according to actual processing needs. Solid wood square is widely used in decoration and door and window materials, formwork support and roof truss materials in structural construction, or in making various wooden furniture.
Solid wood square performs well as a filler for composite wooden doors.
- Advantages
Natural appearance: The door filled with solid wood planks has a natural and beautiful appearance. The pattern and color of the wood provide more choices and creative space for the design of the door.
Good sound insulation effect: Solid wood planks have high density and significant sound insulation effect. They can effectively isolate external noise and provide a quiet indoor environment.
Excellent thermal insulation performance: Solid wood planks have certain insulation properties, which enables the door to effectively reduce heat loss in cold winter.
Environmental protection: Solid wood planks are natural materials with good environmental protection performance
- Disadvantages
Easy to be affected by moisture and deformed: Solid wood is easily affected by moisture and deformed due to water vapor expansion, which may cause the door leaf to deform or crack.
Easy to be eaten by insects: The wood itself contains starch, and it is easy to be eaten by insects if it is not protected for a long time.
High maintenance cost: Waterproof paint and insect repellent need to be applied regularly to protect the appearance and service life of the door.
Bridge hole mechanical board
Bridge hole mechanical board, also known as hollow particle board or Sauerland door core board, is a board that uses the principle of arch bridge hole and uses high-tech technology to make solid wood sawdust into a unique tubular structure. This structure allows external forces to be evenly dispersed, thus ensuring that the board is not easily deformed. It is named for its unique tubular structure and excellent mechanical properties, as if it is as strong as the arch bridge hole.
Bridge hole mechanical board performs well as a filler for wooden doors.
- Advantages
Excellent mechanical properties: The bridge hole mechanical board has excellent mechanical properties, which can ensure the stability and durability of the door.
Good sound insulation: Its unique structure can effectively isolate noise and provide a quiet indoor environment.
Good thermal insulation performance: The bridge hole mechanical board also has good thermal insulation performance, which helps to maintain the stability of indoor temperature.
- Disadvantages
Environmental protection controversy: Some people believe that the bridge hole mechanical board may not be as environmentally friendly as solid wood filling, but the specific situation still needs to be judged based on the environmental protection standards and production process of the product itself.
Graphite homogeneous board
Graphite homogeneous board is a new type of composite door core filling material and building insulation material. It is mainly made of organic materials combined with inorganic mineral glues such as silicon and calcium, or cement as the main gelling material and mixed with a variety of modified materials.
Graphite homogeneous board performs very well as a composite wooden door.
| Sound insulation and noise reduction | It has low water absorption, does not expand or shrink, and ensures that the door body can remain stable in a humid environment. |
| Flame retardant performance | Graphite homogeneous board also has flame retardant properties, which improves the safety of the door. |
| Environmentally friendly and pollution-free | The material is green and environmentally friendly, does not release formaldehyde, is pollution-free and non-radioactive, and meets the environmental protection requirements of modern homes. |
| Lightweight and high-strength | Graphite homogeneous board is ultra-lightweight while maintaining high strength, making the door body both light and strong. |
| Stable and moisture-proof | It has low water absorption, does not expand or shrink, and ensures that the door body can remain stable in a humid environment. |
At this point, you have already had an in-depth understanding of the filling materials of composite wooden doors. If you still have confusion about purchasing composite wooden doors or other questions, you are welcome to contact the opanpan team directly.