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Hydrophilic non-oily non-aqueous ceramic material suspending agent as well as preparation method and application thereof

A technology of ceramic materials and suspending agents, applied in chemical instruments and methods, and other chemical processes, can solve the problems of reducing the surface hardness of hard ceramics, reducing the grinding process, and low suspension performance, so as to reduce hardness, facilitate use, and suspend powerful effect

Inactive Publication Date: 2020-03-24
宁波日晟新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above deficiencies in the prior art, the main purpose of the present invention is to provide a kind of hydrophilic non-oily anhydrous high-efficiency ceramic material suspending agent and preparation method thereof, to solve the problem of low suspending performance, poor fluidity, Easy delamination and other problems, so that the hardness of the hard ceramic surface can be effectively reduced during grinding, the pressure required for the grinding process can be reduced, and the purpose of reducing the deep damage to the surface of the ground material can be achieved.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Prepare a hard ceramic suspending agent as follows: add 150g of diethanolamine and 150g of triethanolamine to 500g of ethylene glycol solvent, stir well, add 200g of sodium ethylenediamine tetramethylene phosphonate, 180g of aluminum silicate bentonite, stir well, Finally, the pH was adjusted to 9.0 with tetramethylammonium hydroxide for boron carbide suspension.

[0034] The suspension was stored for 3 months without stratification.

Embodiment 2

[0036] Add 0.0kg, 0.3kg, 0.5kg, 0.8kg and 0.9kg of the ceramic material suspending agent prepared in Example 1 into 7kg of pure water, stir well, and mark as 2a, 2b, 2c, 2d and 2e. Add 2.5 kg of 240-mesh boron carbide into the above liquid, and stir evenly to obtain 2a, 2b, 2c, 2d and 2e grinding liquids containing boron carbide.

[0037] Put the boron carbide-containing 2a, 2b, 2c, 2d and 2e grinding liquids under the same test conditions, and let them stand for 2 hours, 12 hours, 24 hours, 72 hours, 168 hours respectively, and observe whether the grinding liquid dispersion system is from top to bottom. The lower layer is the water layer, the dispersion layer, and the sedimentation layer. The dispersion of the dispersion layer is recorded. The suspension effect is shown in Table 1:

[0038] Table 1 Suspension test results of grinding fluid

[0039] 2a 2b 2c 2d 2e 2 hours 20% layered no stratification no stratification no stratification no stratif...

Embodiment 3

[0043] The four sample grinding liquids prepared in Example 2 were recycled under the same grinding conditions as in Example 2, and the grinding rates were 0.3, 1.5, 3.3, 3.8, and 2.1 μm / min at the 15th time. It can be seen that the suspending agent of the present invention, when its addition amount in the grinding liquid is 3.5-8.5%, can not only speed up the grinding efficiency, but also prolong the service life of the grinding liquid.

[0044] Under the same test conditions, the sample grinding fluid after the above recycling was left to stand for 2 hours, 12 hours, 24 hours, 72 hours, and 168 hours respectively, and it was observed whether the grinding fluid dispersion system was divided into water layer, Dispersion layer, sedimentation layer, record the dispersion of the dispersion layer, the suspension effect is shown in Table 2:

[0045] Table 2 Suspension test results after slurry circulation

[0046] 2a after cycle 2b after cycle 2c after cycle 2d a...

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Abstract

The invention discloses a hydrophilic non-oily non-aqueous efficient ceramic material suspending agent. The ceramic material suspending agent is prepared from the following raw materials: 1)a non-aqueous solvent which contains multipolar organic molecules and can be mixed and dissolved with water; 2)a hydration catalyst for promoting hydration of the surface of a ceramic material; 3)an antirust agent; and 4)a hydrophilic suspending agent; and the pH value of the ceramic material suspending agent is 7.0-11.0. According to the ceramic material suspending agent disclosed by the invention, the ceramic material has excellent properties such as high suspension property, high flowability, no layering and the like, so that the hardness of the surface of hard ceramic can be effectively reduced during grinding, the pressure required by a grinding process is reduced, and the purpose of reducing deep damage to the surface of a ground material is achieved. The invention further discloses a preparation method and application of the hydrophilic non-oily non-aqueous efficient ceramic material suspending agent.

Description

technical field [0001] The invention relates to the technical field of ceramic material suspending agents, in particular to a hydrophilic, non-oily, anhydrous suspending agent which is generally applicable to various hard ceramic materials and its preparation method and application. Background technique [0002] The ultra-precision machining of hard and brittle materials currently on the market is mostly prepared by hard ceramic abrasive materials, water medium and suspending agent. The basic principle is to disperse the hard abrasive material in the water medium through an effective dispersant. The mechanical friction between the abrasive and the surface of the material to be ground removes the damaged layer on the surface of the hard material to achieve the purpose of grinding. The traditional grinding process uses a synthetic polymer suspending agent to improve the suspension performance of large hard abrasives during the grinding process. However, the long-chain structu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K3/14
CPCC09K3/1472
Inventor 孙韬
Owner 宁波日晟新材料有限公司
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