As a new type of refractory and thermal insulation material, ceramic fiber modules have become popular since they were launched, and have now become one of the most popular materials. Many people can’t help but wonder, “The ceramic bowls we use for meals are hot after serving hot rice. Why can ceramic fiber modules be fire-resistant and heat-preserving?” In fact, the fiber we use is not the same as daily ceramics. Too much relationship refers to the general term for fibrous insulation materials with SiO2 and AL2O3 as the main components and with a refractoriness higher than 1430℃.

We can explain its fire resistance and heat preservation principle from the following three directions.

1. Poor heat transfer capacity of ceramic fiber modules

The ceramic fiber module does not have a clear directionality when it is interwoven. When heat is transferred, it is generally transferred along the fiber. Such non-directionality makes it impossible to transfer heat quickly. In addition, when the fiber is in contact with the hot surface, it is rarely in vertical contact, which makes it difficult to transfer heat to the fiber.

2. There is too much gas inside the ceramic fiber module and poor convective heat transfer

The individual fibers are intertwined to form many air cells, which are filled with still air. We all know that the heat transfer capacity of air is very poor, not to mention still air. On the one hand, these static gases have poor heat transfer effect, and on the other hand, they can also hinder the intrusion of hot air flow.

3. Large thermal resistance of ceramic fiber module

The contact point of the fiber can reach 80%, which further expands the thermal resistance of heat transfer. The fiber itself is opaque, heat rays cannot be transmitted in the fiber, and the area of ​​the fiber is small, and the radiation received is also less, so that the heat radiation is basically not transmitted on the fiber.

From the above three points, it is not difficult to see that the ceramic fiber module has a good fire resistance and heat preservation effect. If you need to learn more about the performance characteristics of the ceramic fiber module, browse the product center on the official website.


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SHANDONG REDON HIGH-TEMPERATURE MATERIAL Co. ,LTD. has the domestic advanced production equipment and leading production technology, with an annual output of 1050 ceramic fiber series products, 1260 ceramic fiber series products, 1400 ceramic fiber series products, 1600 polycrystalline series products tens of thousands of tons. With cotton, blankets, blanket, board, paper and all kinds of textiles, special-shaped products, modules, folding, castable, spraying, etc. Various forms of more than 30 kinds of products, can meet the insulation requirements of high temperature field under different conditions, welcome to have a friend need to click the website lower right online customer service or submit online enquiry, we will contact you the first time.