Elastic fiber felt and preparation method thereof

Abstract

The invention relates to an elastic fiber felt and a preparation method thereof. The elastic fiber felt is characterized in that the elastic fiber felt is composed of ceramic fiber, low-melting-point PET fiber, an organic binding agent and an additive. The elastic fiber felt comprises, by weight, 35-75% of ceramic fiber, 15-25% of low-melting-point PET fiber, 1-10% of the organic binding agent and 1-5% of the additive. The fiber felt provided by the invention has good flexibility, and can be freely folded and bent on any direction. When the fiber felt is used in a construction process, the felt can be used for freely wrapping and winding along with the shapes of equipment and parts. Under normal temperature, the resilience rate of the product reaches 100%. The felt can be processed into sealing materials or other irregular-shaped products with different shapes. The product has excellent flexibility and resilience. The fiber felt has good elasticity. When the fiber felt is used as a sealing material, the sealing effect is better ensured with the excellent resilience.

Description

technical field [0001] The invention relates to the field of filter materials, in particular to an elastic fiber felt and a preparation method. Background technique [0002] At present, the binders added in the production of ordinary fiber mats generally use silica gel and starch, and the production process is mostly: 1. Pulp preparation: mix ceramic fibers, silica gel and starch in a certain proportion to make felt pulp 2. Forming: use the mold to vacuum filter the wet fiber felt blank; 3. Drying: use hot air or electric heating to remove the moisture in the fiber felt wet blank; 4. Processing: use cutting equipment to dry the dried fiber felt The fiber mat is processed into products of various specifications and sizes required; [0003] The disadvantage of the fiber mat made of this binder is that the fiber mat itself has poor foldability and cannot be bent and folded at will. The product is inconvenient to be bent, wound and wrapped during the construction process. Elas...

AI Technical Summary

Problems solved by technology

[0003] The disadvantage of the fiber mat made of this binder is that the fiber mat itself has poor foldability and cannot be bent and folded at will. The product is inconvenient to be bent, wound and wrapped during the construction process. Elasticity can easily lead to poor sealing performance, fire leakage, air leakage and other problems; and this method of vacuum suction filtration molding using molds has problems such as poor sealing and the inhomogeneity of vacuum distribution in the vacuum suction filtration molding process. The uneven thickness and density of the fiber mat is serious, which affects the use effect of the product