Dispersing agent used for preparing samples for diamond micropowder morphology detection

A diamond micropowder and dispersant technology, applied in the field of diamond micropowder quality inspection, can solve the problems of strong fluidity, difficult observation, unfavorable picture preservation and file retention, etc., and achieve the effect of clear picture and clear sample

Inactive Publication Date: 2018-01-23
SF DIAMOND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the traditional method, only glycerin (glycerol) is used as a dispersant to prepare test samples, but after using only glycerin as a dispersant, there are the following problems: when the micropowder is observed under a microscope,

Method used

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  • Dispersing agent used for preparing samples for diamond micropowder morphology detection
  • Dispersing agent used for preparing samples for diamond micropowder morphology detection
  • Dispersing agent used for preparing samples for diamond micropowder morphology detection

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Used to detect the morphology of diamond powder with a particle size of W25-35

[0019] 1) Mix polyethylene glycol 600 and glycerin at a volume ratio of 10:1 to prepare 500ml of new dispersant for use;

[0020] 2) According to the conventional sample preparation method, absorb the dispersant with a straw and drop it on the glass slide, then take a small amount of the micropowder to be tested with a bamboo stick, stir it with the dispersant evenly, then cover it with a cover glass, and then Use the other end of the bamboo stick to gently press on the cover glass to observe under the microscope. figure 1 For the pictures taken under a microscope (objective 4 x eyepiece 10).

Embodiment 2

[0022] Used to detect the morphology of diamond powder with a particle size of W0-1.5

[0023] 1) Mix polyethylene glycol 600 and glycerin at a volume ratio of 10:1 to prepare 500ml of new dispersant for use;

[0024] 2) According to the conventional sample preparation method, absorb the dispersant with a straw and drop it on the glass slide, then take a small amount of the micropowder to be tested with a bamboo stick, stir it with the dispersant evenly, then cover it with a cover glass, and then Use the other end of the bamboo stick to gently press on the cover glass to observe under the microscope. image 3 It is a picture taken under a microscope (objective lens 100×eyepiece lens 10).

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Abstract

The invention belongs to the technical field of diamond micropowder quality detection and particularly relates to a dispersing agent used for preparing samples for diamond micropowder morphology detection. The dispersing agent is a mixture of polyethylene glycol and glycerinum in volume ratio of 10:1. The dispersing agent in actual use has the advantages that the sample prepared are uniform in dispersion without agglomeration and clear in observation under a microscope, immobilization is achieved, and micropowder morphology detection is facilitated.

Description

technical field [0001] The invention belongs to the technical field of diamond micropowder quality detection, and in particular relates to a dispersant used for making a sample for diamond micropowder shape detection. Background technique [0002] The quality inspection of diamond powder includes particle size, shape, purity and other aspects, and for shape inspection, there are scanning electron microscope inspection, biological microscope, etc. Among them, the scanning electron microscope has clearer detection pictures, but the detection cost is high and the speed is slow, which is not suitable for the detection in the daily production of diamond micropowder. Relatively speaking, biological microscope detection is convenient and easy to operate. In the traditional method, only glycerin (glycerol) is used as a dispersant to prepare test samples, but after using only glycerin as a dispersant, there are the following problems: when the micropowder is observed under a microsc...

Claims

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Application Information

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IPC IPC(8): G01N1/38
Inventor 刘慧苹王彩利马姗姗方海江
Owner SF DIAMOND CO LTD
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