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A kind of leather sandpaper capable of grinding curved surface materials and preparation method thereof

A leather and sandpaper technology, which is applied in the field of leather sandpaper and its preparation, can solve the problems of poor sanding effect of curved surface materials and insufficient flexibility of sandpaper, and achieve the effect of high stability in use, high degree of fit, and not easy to crack

Active Publication Date: 2018-06-22
绍兴自远磨具有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In order to solve the problems of insufficient flexibility of existing sandpaper and poor grinding effect of curved surface materials, the invention provides a kind of leather sandpaper capable of polishing curved surface materials and its preparation method

Method used

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  • A kind of leather sandpaper capable of grinding curved surface materials and preparation method thereof
  • A kind of leather sandpaper capable of grinding curved surface materials and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] Step (1): Preparation of the ground leather composite layer:

[0064] Prepare the preparation of the abrasive particle coating: by weight, 300 parts of 100 micron white corundum (He Baige Abrasives Co., Ltd.), 500 parts of phenolic resin (PF-9300; Jinan Shengquan Group Co., Ltd.), 280 parts Parts of epoxy resin (NPES-619; South Asia Epoxy Resin (Kunshan) Co., Ltd.) was mixed, and 100 parts of ethyl acetate was added for dilution. After stirring and mixing, 110 parts of soluble curing agent (R-2015; Guangzhou City Rich Chemical Co., Ltd.), and then stirred for 20-40min to obtain the abrasive grain coating. The specific components and proportioning ratio are shown in Table 1:

[0065] Table 1

[0066] components

Weight (g)

Non-volatile components (%)

Weight after drying (g)

White corundum

300

100

300

Phenolic Resin

500

30

150

epoxy resin

280

30

84

Hardener

110

60

66

...

Embodiment 2

[0074] Compared with Example 1, the difference is that 150 micron white corundum is used, and other parameters and operation methods refer to Example 1.

Embodiment 3

[0076] Compared with Example 1, the difference is that 100 micron green silicon carbide (manufacturer, model) is used, and other parameters and operation methods refer to Example 1.

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Abstract

The invention discloses leather abrasive paper capable of polishing curved surface materials and a preparation method thereof. The leather abrasive paper is composed of an abrasive layer, a leather layer, a sponge layer, a waterproof layer and a flannelette layer which are sequentially arranged from top to bottom. The method for preparing the abrasive paper includes the steps of evenly coating the surface of the leather layer with abrasive particle paint to obtain an abrasive leather composite layer; pressing and bonding the surface of the leather layer of the abrasive leather composite layer and the sponge layer together to form an abrasive leather and sponge composite layer; and pressing and bonding the waterproof layer surface of a film and flannelette composite layer and the sponge surface of the abrasive leather and sponge composite layer together. The method for preparing the leather abrasive paper capable of polishing the curved surface materials is easy to operate, and the prepared leather abrasive paper is good in quality and suitable for large-scale industrial production. The leather abrasive paper prepared through the method is high in flexibility, good in polishing buffer performance, good in the effect of polishing the curved surface materials, and high in using stability.

Description

technical field [0001] The invention relates to the field of abrasive materials, in particular to leather sandpaper capable of grinding curved surface materials and a preparation method thereof. Background technique [0002] Sandpaper, commonly known as sandpaper, is a material for grinding, used to grind the surface of metal, wood, etc., to make the surface of the material smooth. [0003] With the development of 3c electronics, magnesium-aluminum alloy is mostly used for the shell, and the shape requirements are getting higher and higher. For example, the curved screen of Samsung mobile phone, the edge curvature of iPhone, and ipad all need to be polished with a certain degree of softness and greater abrasiveness. Cutting force, sufficient adhesion and hardness; and during the sanding process, dry grinding has a relatively large environmental pollution and is likely to cause dust explosions, so the sandpaper needs to be water-resistant. [0004] In the existing sandpaper,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B24D11/00
Inventor 陈森军崔嘉敏
Owner 绍兴自远磨具有限公司