Anti-settling dispersed ground glass fiber modified material and preparation method thereof

Abstract

The invention relates to the technical field of composite materials, and discloses an anti-settling dispersed ground glass fiber modified material and a preparation method thereof.The preparation method comprises the following steps that 1, raw materials are prepared, specifically, an impact crusher is used for crushing glass raw materials, then a grinding machine is used for grinding the crushed glass, and the ground glass is obtained; screening and grading the ground material to obtain ground glass fiber; (2) heating treatment: heating the obtained ground glass fibers to 100-150 DEG C, and keeping the temperature for 3-5 minutes; (3) adding an anti-settling dispersing agent: adding the anti-settling dispersing agent into the heated ground glass fiber, and uniformly mixing for 4-6 minutes through mechanical stirring to ensure that the anti-settling dispersing agent fully coats the surface of the glass fiber so as to obtain an initial glass fiber modified material; and 4) cooling and screening again: naturally cooling the obtained initial glass fiber modified material to room temperature, and screening again to obtain the ground glass fiber modified material.

Description

Technical Field

[0001] The invention relates to the technical field of composite materials, in particular to an anti-settling and dispersed ground glass fiber modified material and a preparation method thereof. Background Art

[0002] In the paint and coating industry, in order to improve the mechanical properties and durability of the coating, it is often necessary to add various reinforcing materials. Among them, glass fiber, as a high-strength, high-modulus inorganic fiber material, is widely used in paint and coating. However, traditional glass fiber has some problems during use, especially in terms of dispersion and stability in paint and coating.

[0003] First, due to its high surface energy, traditional glass fiber is prone to agglomeration in paint, resulting in poor dispersion and difficulty in evenly dispersing in the paint. This not only affects the construction performance of the paint, but may also lead to uneven mechanical properties of the paint after curing.

[0004] Secondly, the suspension stability of traditional glass fiber in paint is poor, and it is easy to precipitate during the static process. This will not only affect the uniformity and consistency of the paint, but also may cause waste of paint and degradation of performance.

[0005] In addition, the bonding ability of traditional glass fibers with paint coatings is limited, which may result in insufficient interfacial bonding strength between the glass fibers and the substrate after the coating is cured, thus affecting the overall performance and service life of the coating.

[0006] In order to solve the above problems, researchers have conducted a lot of research and exploration. Some methods try to improve the dispersibility and stability of glass fibers in paints and coatings by changing their surface properties, but there are often problems such as complex processes and high costs. Other methods try to improve the bonding ability of glass fibers and paints and coatings by adding various additives, but the results are not ideal. Summary of the invention

[0007] The technical problem to be solved by the present invention is to overcome the defects of the above-mentioned technology and provide an anti-settling and dispersed ground glass fiber modified material and a preparation method thereof.

[0008] In order to solve the above technical problems, the technical solution provided by the present invention is a method for preparing an anti-settling and dispersed ground glass fiber modified material, comprising the following steps:

[0009] Step 1) Raw material preparation: crushing the glass raw material with an impact crusher, grinding the crushed glass with a grinder, and screening and grading the ground material to obtain ground glass fiber;

[0010] Step 2) heating treatment: heating the obtained milled glass fiber to 100-150° C. and maintaining it for 3-5 minutes;

[0011] Step 3) adding an anti-settling dispersing agent: adding the anti-settling dispersing agent to the heated ground glass fiber, and uniformly mixing by mechanical stirring for 4-6 minutes to ensure that the anti-settling dispersing agent is fully coated on the surface of the glass fiber, thereby obtaining an initial glass fiber modified material;

[0012] Step 4) Cooling and re-sieving: The obtained initial glass fiber modified material is naturally cooled to room temperature and sieved again to obtain the target product.

[0013] Furthermore, the mesh size in the screening in step 1 is 100-500 mesh.

[0014] Furthermore, in the step 3, the mass percentage of the anti-settling and dispersing agent is 1-3%, and the mass percentage of the ground glass fiber is 97-99%.

[0015] Furthermore, the mesh size in the screening in step 4 is 100-500 mesh.

[0016] The second object of the present invention is to provide a modified material of anti-settling and dispersible ground glass fiber, wherein the modified material is prepared according to the above-mentioned preparation method.

[0017] The advantages of the present invention over the prior art are as follows: the ground glass fiber modified material prepared by the preparation method provided by the present invention can be added to paint coatings without precipitation and is easy to suspend, thus solving the problem that traditional glass fibers have poor dispersibility and are easy to precipitate in paint coatings; at the same time, the ground glass fiber modified material is easy to combine with paint coatings, thus increasing the viscosity of the paint coatings, improving the overall performance of the paint coatings, and extending the service life of the paint coatings. DETAILED DESCRIPTION

[0018] The anti-settling and dispersing ground glass fiber modified material and the preparation method thereof of the present invention are further described in detail below in conjunction with the embodiments.

[0019] Example 1

[0020] A modified material for preventing sedimentation and dispersing ground glass fibers, the preparation method of which comprises the following steps:

[0021] Step 1) Raw material preparation: crushing the glass raw material with an impact crusher, grinding the crushed glass with a grinder, and screening and grading the ground material to obtain ground glass fiber;

[0022] The screening mesh grade is 150 mesh;

[0023] Step 2) heating treatment: heating the obtained milled glass fiber to 100° C. and maintaining it for 5 minutes;

[0024] Step 3) adding an anti-settling dispersing agent: adding the anti-settling dispersing agent to the heated ground glass fiber, and uniformly mixing by mechanical stirring for 4 minutes to ensure that the anti-settling dispersing agent is fully coated on the surface of the glass fiber, thereby obtaining an initial glass fiber modified material;

[0025] The mass percentage of the anti-settling and dispersing agent is 1%, and the mass percentage of the ground glass fiber is 99%;

[0026] The anti-settling dispersing agent is QM-5200 high-efficiency anti-settling dispersing agent;

[0027] Step 4) Cooling and re-screening: The obtained initial glass fiber modified material is naturally cooled to room temperature, and screened again, with a mesh size of 200 meshes, to obtain the target product.

[0028] Example 2

[0029] A modified material for preventing sedimentation and dispersing ground glass fibers, the preparation method of which comprises the following steps:

[0030] Step 1) Raw material preparation: crushing the glass raw material with an impact crusher, grinding the crushed glass with a grinder, and screening and grading the ground material to obtain ground glass fiber;

[0031] The screening mesh grade is 200 mesh;

[0032] Step 2) heating treatment: heating the obtained milled glass fiber to 150° C. and maintaining it for 3 minutes;

[0033] Step 3) adding an anti-settling dispersing agent: adding the anti-settling dispersing agent to the heated ground glass fiber, and uniformly mixing by mechanical stirring for 6 minutes to ensure that the anti-settling dispersing agent is fully coated on the surface of the glass fiber, thereby obtaining an initial glass fiber modified material;

[0034] The mass percentage of the anti-settling and dispersing agent is 3%, and the mass percentage of the ground glass fiber is 97%;

[0035] The anti-settling and dispersing agent is BASF Efka FA4663 AN anti-settling and dispersing agent;

[0036] Step 4) Cooling and re-screening: The obtained initial glass fiber modified material is naturally cooled to room temperature, and screened again, with a screening medium mesh of 250 mesh to obtain the target product.

[0037] The present invention and its implementation methods are described above, and such description is not restrictive. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design structures and embodiments similar to the technical solution without creativity, which should all fall within the protection scope of the present invention.

Claims

1. A method for preparing an anti-settling and dispersing ground glass fiber modified material, characterized in that: The following steps are involved: Step 1) Raw material preparation: crushing the glass raw material with an impact crusher, grinding the crushed glass with a grinder, and screening and grading the ground material to obtain ground glass fiber; Step 2) heating treatment: heating the obtained milled glass fiber to 100-150° C. and maintaining it for 3-5 minutes; Step 3) adding an anti-settling dispersing agent: adding the anti-settling dispersing agent to the heated ground glass fiber, and uniformly mixing by mechanical stirring for 4-6 minutes to ensure that the anti-settling dispersing agent is fully coated on the surface of the glass fiber, thereby obtaining an initial glass fiber modified material; Step 4) Cooling and re-sieving: The obtained initial glass fiber modified material is naturally cooled to room temperature and sieved again to obtain the target product.

2. The preparation method according to claim 1, characterized in that: The mesh size of the screening in step 1 is 100-500 meshes.

3. The preparation method according to claim 1, characterized in that: The mass percentage of the anti-settling and dispersing agent used in step 3 is 1-3%, and the mass percentage of the ground glass fiber used is 97-99%.

4. The preparation method according to claim 1, characterized in that: The mesh size of the screening in step 4 is 100-500 mesh.

5. An anti-settling and dispersing ground glass fiber modified material, characterized in that: The modified material is prepared according to the preparation method according to any one of claims 1-4.