How Important is the Diameter-to-Thickness Ratio of Mica Powder to the Application?

Jul. 23, 2020

As a Wet Ground Mica Factory, share with you. Mica is one of the most widely distributed minerals in the earth's crust. It belongs to the flaky structure of hydroaluminosilicate minerals. It is a very important non-metallic mineral material and has applications in many fields. For downstream users of mica powder, what is most concerned about is the particle size of the mica powder and whether it still retains the original flaky crystal form, which is often referred to as the "diameter-thickness ratio".

Phlogopite Mica

Phlogopite Mica

The importance of diameter-thickness ratio to the application of mica powder

Among the many application fields of mica powder, the diameter-to-thickness ratio is an important parameter, which refers to the numerical ratio of the diameter and thickness of the mica flake particles. The larger the diameter-to-thickness ratio, the better the general elasticity and toughness, and the better the physical properties. excellent. In many applications of mica powder, the diameter-thickness ratio is one of the most important indicators. For example, in coatings and pearlescent pigments, the diameter-to-thickness ratio of mica powder will affect its ability to reflect light, which in turn affects the brightness of the product; in addition, the performance of composite materials using high-diameter-thickness ratio mica powder can also be significantly improved. As follows: 1. Improve the physical and mechanical properties. First of all, the stress of flake and fibrous filler dispersible materials is similar to that of steel bars in concrete. Therefore, rubber, plastic and resin with large diameter and thickness ratio of mica powder are added to resist the stress. The impact, mechanical strength, and morphological stability have been significantly improved. Furthermore, mica is one of the components of granite, and its hardness and mechanical strength are great. Therefore, adding mica powder as a filler to the coating can significantly improve its anti-wear performance. Mica powder can also change the friction characteristics of rubber. Different uses have different effects, such as increasing the friction coefficient or improving the lubrication performance (such as wipers). Finally, after adding a large diameter to thickness ratio filler, the physical properties such as the elastic modulus of the material (such as rubber) are greatly improved. This is mainly due to the coupling treatment of mica powder, which can greatly improve the overall chemical significance of the material. Performance, so that the performance of the material can be greatly improved. 2. Improve airtightness. Rubber seals are a kind of general basic components in sealing devices. They play a very important role in the contradiction between leakage and sealing. Therefore, airtightness is the primary performance for many rubber products, such as Inner tube, bladder and many life-saving supplies, etc. Our company also has Phlogopite Mica on sale, welcome to contact us.