1. Physical and also mechanical properties
Mica with a two-dimensional sheet framework serves as an aircraft support in plastics, boosting the flexural modulus of flexibility as well as tensile toughness of the item. The physical and also mechanical residential or commercial properties of mica-reinforced plastics are in between plastics strengthened with glass fibers and also mineral fillers (such as talc). Compared to glass fiber-reinforced plastics, the advantages of mica-reinforced plastics are higher modulus and also lower warpage. curvature.
The consistent orientation of mica in the plastic ensures the anisotropy of the product, prevents bending and contortion, and can grant the product with superb dimensional security. Mica is the mineral filler that has one of the most apparent influence on the shrinkage of PP and also PA customized materials, and can significantly minimize the molding shrinkage of products.
2. Warm resistance
Ground Mica has good thermal security (high temperature resistance over 600 ° C), which can hinder the generation of volatiles in the process of thermal decay of plastics while insulating heat, as well as boost the thermal stability of materials (warm distortion temperature and also heat creep resistance).
3. Damping efficiency
The addition of Ground Mica greatly contributes to the improvement of the damping efficiency of the item. Under the joint action of the volume impact and also the rubbing impact of the flake filler, the energy loss of the product is huge as well as the damping value is huge.
4. UV shielding performance
Ground Mica is an all-natural mineral filler with superb UV securing performance (protecting rate over 80%) as well as mechanical enhancement effect. In some application systems (PP) UV protecting effect can completely replace natural UV absorbers, considerably minimizing the production price. price.
5. Electrical buildings
Ground Mica has incredibly high resistance and is a high-performance insulating product. In the field of low-voltage electrical appliances (such as PA customized leakage defense, air switch, junction box, electric parts, etc), mica filling is an ideal s Option. If you need to make high-insulation plastic products, you can take into consideration including practical filler wet-process mica powder, yet mica with high iron web content has low insulation performance and also must be prevented.
6. Barrier properties
In the plastic processing procedure, via the calendering and extending of the material, the mica wafers can form a parallel alignment in the plastic, and its positioning is parallel to the surface area of the plastic product as well as vertical to the instructions of penetration and escape of gases and also fluids. Layers of obstacles are created in materials such as air, making it incredibly tough for gases as well as liquids to permeate. When gases and fluids permeate plastics, they have to continuously bypass as well as surpass mica wafers, and the infiltration courses are very tortuous (shielding effect and also maze impact), so mica-filled plastics have exceptional gas as well as fluid barrier residential or commercial properties. Nevertheless, in order to get outstanding obstacle result, the diameter-thickness ratio of the flake filler ought to go to the very least 50 times, preferably more than 70 times. The diameter-thickness ratio of wet-process mica powder is as high as 80 ~ 120 times, which can be made use of in plastic materials that need high barrier residential properties.
