A kind of ceramic fiber that can in aqueous solution, disperse
Technical field
The utility model relates to the ceramic fibre field, specifically, specially refers to a kind of ceramic fiber that can disperse in aqueous solution.
Background technology
Ceramic fiber is widely used in industries such as metallurgy, petrochemical industry, glass, electronics at present as a kind of fire-resistant heat insulating material.When wet method is copied taking technique production ceramic fibre, ceramic fiber need be mixed, stirs with aqueous solution, this just requires in this aqueous solvent, and ceramic fiber can access good dispersion, thereby forms uniform entity.Ceramic fiber needs to reduce the damage to staple length as far as possible in this process, macrofiber is conducive to improve the intensity of ceramic fibre, but when staple length surpasses certain limit, twines mutually easily, be difficult for disperseing, and conglomeration in aqueous solution.And because the ratio of ceramic fiber is great, be easy to precipitation in aqueous solvent, the process that tightly relies on mechanical stirring to mix is inaccessible far away, and the quality of influence production and the finished product becomes the difficult problem that puzzlement is produced.
The utility model content
The purpose of this utility model is to provide a kind of ceramic fiber that can disperse in aqueous solution, by at the single sheath of the surface attachment of ceramic fiber, make ceramic fiber in attribute solution, can disperse naturally, overcome the deficiency in the conventional art, thereby realized the purpose of this utility model.
The technical problem that the utility model solves can realize by the following technical solutions:
A kind of ceramic fiber that can disperse in aqueous solution, its main body are ceramic fiber, and the surface attachment of described ceramic fiber has anion layer or cationic layer.
In an embodiment of the present utility model, described ceramic fiber is one or more in alumina-silicate ceramic fibre, Mullite Ceramic Fibres, ceramic alumina fiber, the glass fibre.
In an embodiment of the present utility model, the length of described ceramic fiber is 20-30mm, and diameter is less than 2.5 μ m, slag ball content≤5%.
In an embodiment of the present utility model, described anion layer is hydrochloric acid or sulfuric acid; Described cationic layer is cationic polyacrylamide or cation acrylic latex.
The beneficial effects of the utility model are: by at the single sheath of the surface attachment of ceramic fiber, make and repel mutually owing to the effect of single electric charge between the fiber, effectively solve between the macrofiber owing to twining the clustering phenomena that produces mutually, guarantee that all directions of ceramic fiber in aqueous solvent form evenly distribution, also have positive effect to improving the precipitation of fiber in aqueous solution.
Description of drawings
Fig. 1 is the structural representation of the ceramic fiber that can disperse described in the utility model in aqueous solution.
Embodiment
For technique means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with embodiment, further set forth the utility model.
As shown in Figure 1, a kind of ceramic fiber that can in aqueous solution, disperse described in the utility model, its main body is ceramic fiber 110, for being formed evenly, its all directions in aqueous solvent distribute, the surface attachment of described ceramic fiber 110 has sheath 120, and this sheath 120 is all anion layer or cationic layer.By the said structure design, make and repel mutually owing to the effect of single electric charge between the ceramic fiber 110, thereby effectively solve between the long ceramic fiber 110 owing to the mutual clustering phenomena that produces that twines.
Prove that effect was better when ceramic fiber 110 adopted in alumina-silicate ceramic fibres, Mullite Ceramic Fibres, ceramic alumina fiber, the glass fibre one or more through a large amount of experimental studies.
In order to guarantee quality product, the length of ceramic fiber 110 is 20-30mm, and diameter is less than 2.5 μ m, slag ball content≤5%.
Especially it is pointed out that describedly when sheath 120 during for anion layer, can select hydrochloric acid or sulfuric acid for use; Described when sheath 120 is cationic layer, can select cationic polyacrylamide or cation acrylic latex for use.Can add static inhibitor in addition.
Production process of the present utility model is as follows:
1. ceramic fiber is dropped in the hydrapulpter and pull an oar, beating time was controlled at 2-3 minute, rotating speed 500-1000 rev/min.
2. making beating is pumped into after finishing and joins stock tank and dilute, and the concentration of the aqueous solution after the dilution is 1wt%-3wt%, and keeps agitator to continue stirring at low speed
3. add the dispersion agent of stocking in the aqueous solution after dilution, add according to quantity according to processing requirement, and keep the whipped state of slurries.
4. add dispersion agent and lasting after stirring at low speed 3-10 minute, the aqueous solution of ceramic fiber uses for ceramic fiber production.
The utility model passes through at the single sheath of the surface attachment of ceramic fiber, make and repel mutually owing to the effect of single electric charge between the fiber, effectively solve between the macrofiber owing to twining the clustering phenomena that produces mutually, guarantee that all directions of ceramic fiber in aqueous solvent form evenly distribution, also have positive effect to improving the precipitation of fiber in aqueous solution.
More than show and described ultimate principle of the present utility model and principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that describes in above-described embodiment and the specification sheets just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.