The following additives can improve the hardness of wood-plastic products to a certain extent:
1. Glass fiber: It has high strength and stiffness. Adding it to wood-plastic composite materials can significantly improve the hardness and stiffness.
2. Calcium carbonate: can increase the hardness and dimensional stability of the material.
3. Mica powder: It can enhance the mechanical properties of the material and increase the hardness.
4. Nano-silica: It can improve the overall performance of the material and enhance the hardness and wear resistance.
It should be noted that the amount of additives added and the uniformity of dispersion will have a greater impact on the effect. At the same time, adding too much may cause changes in other properties, such as a decrease in toughness. Therefore, in practical applications, experiments are needed to determine the optimal addition ratio and process conditions.
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