概述
The PP core sandwich mat is a three-layer composite reinforcement totaling 860g/m² (380 + 180 + 300), built around a polypropylene core sandwiched between glass fiber layers. Designed for high-speed rail applications, the sandwich structure delivers high bending stiffness at low weight, much like a structural I-beam, while the PP core adds thermal insulation.
Placing lightweight core material between two glass skins increases the laminate's thickness and flexural rigidity without a proportional increase in mass, which is exactly what transportation structures need to reduce weight while meeting stiffness targets. The integrated construction also simplifies lay-up, since the core and skins are combined in a single product.
Used in high-speed rail and broader transportation applications, the mat suits infusion and closed-mold processes. The glass skins bond with standard composite resins while the PP core contributes lightweight stiffness and insulation to the finished panel.
技术规格
| 参数 | 数值 |
|---|---|
| 克重 | 860g (380+180+300) |
| 结构 | PP芯夹层 |
| 成分 | E-玻璃 + PP |
| 应用 | 高速铁路 |
应用领域
常见问题
How does a PP core sandwich mat reduce weight?
Placing a lightweight polypropylene core between two glass skins increases thickness and bending stiffness without a proportional weight gain, similar to how an I-beam achieves rigidity efficiently.
What does the 860g (380+180+300) construction mean?
It is a three-layer build totaling 860g/m²: a 380g glass layer, a 180g PP core, and a 300g glass layer, combined into a single sandwich reinforcement.
Where is the PP core sandwich mat used?
It is designed for high-speed rail and other transportation applications that need lightweight stiffness and thermal insulation in structural panels.
