Material Modification Reinforcement
Reinforcing materials are incorporated into the matrix plastic to fundamentally improve the mechanical properties of the material.
Reinforcing Materials: Glass fiber, metal additives, composite functional additives (e.g., modified calcium carbonate, silica aerogel, etc.)
Performance Advantages: It can significantly enhance the rigidity, flexural strength and dimensional stability of the sheet. For instance, adding 30% glass fiber can drastically reduce the shrinkage rate. As the most basic reinforcement method, it is commonly applied to sheets with load-bearing and dimensional requirements.
Interlayer/Composite Structure Reinforcement
The "sandwich" structure is adopted, leveraging the synergistic effect of high-strength surface layers and lightweight core materials to achieve high strength and low weight.
Reinforcing Components: Hollow fabric core materials, glass fiber cloth surface layers, hollow glass fiber reinforced plastic (GFRP) internal reinforcement layers
Performance Advantages: It is one of the most effective methods to achieve high strength and lightweight properties. For example, the core material composed of hollow fabric and resin is integrally connected with the panel via fibers, which is resistant to delamination and boasts excellent impact resistance. This method is commonly applied in high-end building materials, logistics pallets requiring lightweight and high strength, and other products.
Special Fillers and Structural Design
Functional fillers are added to the hollow cavities or interlayers of the sheet, or special structures are designed to achieve specific reinforcement effects.
Key Materials & Structures: Water-absorbent resin spheres, buffer spheres, double-layer/multi-layer hollow sheet structures
Performance Advantages: It is mainly used to improve dynamic properties such as impact resistance, buffering and shock resistance. For example, water-absorbent resin spheres turn into elastomers when exposed to water, which can enhance compression resistance and shock resistance; adding elastic buffer spheres to the sheet can absorb impact energy. This method is suitable for precision instrument packaging, shock-resistant turnover boxes and other applications.
How to Select Reinforcement Methods
Pursuing High Strength and Lightweight Performance: The top choice is interlayer structure reinforcement, especially solutions using hollow fabrics, glass fiber reinforced plastic (GFRP) and other materials as the core. This is currently the mainstream direction for high-end applications.
Enhancing Static Load-Bearing Capacity and Rigidity: Material modification reinforcement is a fundamental and effective method, such as adding glass fiber. It is often combined with interlayer structures to achieve optimal results.
Requiring Impact Resistance and Buffering Performance: Focus should be placed on special fillers and structural design, e.g., adding elastic particles to the sheet or adopting a double-layer hollow structure.
Considering Comprehensive Performance and Cost: In actual production, these methods are often used in combination. For example, a high-performance sheet may adopt a composite design of glass fiber-reinforced plastic surface layer + hollow fabric core + buffer filler simultaneously to achieve a balance of strength, toughness and light weight.