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Method for preparing grinding silk

A technology for grinding silk and grinding particles, applied in chemical instruments and methods, single-component polyamide rayon, other chemical processes, etc., can solve problems such as unseen use, achieve good grinding performance and reduce wear and tear.

Inactive Publication Date: 2011-03-30
慈溪市洁达纳米复合材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the abrasive particles of general abrasive wires on the market are mainly alumina or silicon carbide, etc., and the abrasive wires using artificial diamond as abrasive particles have not been used yet.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] (1). The polyamide 612 resin slices were dried in a vacuum desiccator for 6 hours, and the airtight moisture-proof treatment was used for subsequent use. Before use, the polyamide 612 resin slices were mixed with 1098 (N, N'-hexamethylene bis (3, 5-di-tert-butyl-4-hydroxyphenylpropanamide)), POE-g-MAH and aramid 1414 (the length of the fiber is 2 to 5 mm) are mixed evenly to obtain a polyamide 612 matrix mixture, wherein: polyamide 612 matrix The mixture contains 1098 with a mass concentration of 0.1%, POE-g-MAH with a mass concentration of 3%, and aramid fiber 1414 with a mass concentration of 2%;

[0040] (2). Dilute γ-aminopropyltriethoxysilane with 5 times the volume of γ-aminopropyltriethoxysilane in absolute ethanol or acetone to prepare γ-aminopropyltriethoxysilane impregnation solution 36 mesh synthetic diamond abrasive grains were cleaned with deionized water, dried at 300°C for 4 hours, mixed with the above impregnation solution and fully stirred for 1 to 2 ho...

Embodiment 2

[0047] The method and the condition of preparing polyamide 612 grinding silk are basically the same as embodiment 1, wherein the difference is:

[0048] The polyamide 612 matrix mixture contains 1098 with a mass concentration of 0.2%, POE-g-MAH with a mass concentration of 3%, and aramid fiber 1414 with a mass concentration of 3%.

[0049] The 240-mesh artificial diamond abrasive grains are impregnated and mixed and stirred evenly with the impregnating liquid, and the amount of the impregnating liquid is 8wt%-10wt% of the artificial diamond abrasive grains.

[0050] The weight ratio of the polyamide matrix 612 mixture to the artificial diamond abrasive grains treated with γ-aminopropyltriethoxysilane on the surface is 7:3, and the mass percentage content of the artificial diamond abrasive grains in the prepared abrasive wire is 30%. .

[0051] The heating section of the building block single-screw extruder is divided into 5 temperature sections, among which: the temperature o...

Embodiment 3

[0054] The method and the condition of preparing polyamide 612 grinding silk are basically the same as embodiment 1, wherein the difference is:

[0055] The polyamide 612 matrix mixture contains 1010 with a mass concentration of 0.3%, POE-g-MAH with a mass concentration of 3%, and carbon fibers with a mass concentration of 2% (the length of the fiber is 2-5 mm).

[0056] The 240-mesh artificial diamond abrasive grains are impregnated with the impregnating liquid and stirred evenly, and the amount of the impregnating liquid is 8wt%-10wt% of the artificial diamond abrasive grains.

[0057] The weight ratio of the polyamide matrix 612 mixture to the artificial diamond abrasive grains treated with γ-aminopropyltriethoxysilane on the surface is 7:3, and the mass percentage content of the artificial diamond abrasive grains in the prepared abrasive wire is 30%. .

[0058] The heating section of the building block single-screw extruder is divided into 5 temperature sections, among wh...

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Abstract

The invention relates to a method for preparing a super-tough super-strong specific grinding silk. In the invention, the performance of a polyamide resin slice is adjusted through adjusting auxiliary materials, such as antioxidant, a flexibilizer and / or a reinforcing agent and the like, artificial diamond grinding particles subjected to coupling agent treatment is added to produce the grinding silk with excellent performance. A contact phase of the artificial diamond grinding particles subjected to the coupling agent treatment and the polyamide resin slice is solid-liquid blending by means of segment charging, so as to reduce the abrasion of a building-block type single screw rod extruder by using the artificial diamond grinding particles, and feed volumes are respectively regulated to obtain a plurality of grinding silks having the proportion content of grinding materials, so that the product meets the requirement on various trenchant use environment. The product developed by the process has the advantage of better grinding performance, and can be normally used in the environment of high temperature and acid base.

Description

technical field [0001] The invention relates to a preparation method of super-tough and super-strong special grinding wire. Background technique [0002] Abrasive wire is generally used for polishing, grinding, cleaning, etc. on the surface of the workpiece. As early as the 1960s, the technology of filling the polyamide base material with inorganic abrasive particles to prepare abrasive wires appeared. This kind of abrasive wire is the inorganic abrasive particles in the wire to play the role of grinding, and the abrasive wire is exposed when worn. The inorganic abrasive particles will wear quickly, but with the wear of the base material, new abrasive particles will be exposed to form a new grinding surface, and the continuous regeneration of the grinding surface can maintain high grinding ability for a long time. [0003] Diamond is the hardest substance known in nature, and its high hardness determines that it has broad development prospects in the field of material cutti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F6/90D01F1/10C09K3/14
Inventor 马剑波马永梅高华鹏张志强牛锋徐凤飞吴香发
Owner 慈溪市洁达纳米复合材料有限公司
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