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Ultrathin ultra-soft smooth abrasive cloth and production process thereof,

A production process and smooth technology, applied in the direction of manufacturing tools, metal processing equipment, grinding/polishing equipment, etc., can solve the problem of poor softness of abrasive cloth, achieve good adhesion and mechanical properties, good bonding performance, The effect of softness and strength parameter improvement

Active Publication Date: 2020-02-11
古德尚新材料科技湖北有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the problem of poor softness of the abrasive cloth in the prior art, the present invention provides an ultra-thin and ultra-soft smooth abrasive cloth and its production process. The abrasive cloth prepared through a reasonable formula design and corresponding process method has a longer service life and a smoother product. , good softness, can be used in high-precision electronics industry, fine grinding of semiconductors, lithium batteries, liquid metal, stainless steel, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Configuration of soft polyurethane waterproof material

[0046] The primer layer is made of soft polyurethane waterproof material, and the polyurethane is made of PU-3541 water-based polyurethane resin from Guangzhou Hengfeng New Material Co., Ltd. The flexible polyurethane waterproof material adopts a toluene solution with a percentage by weight of: polyurethane: curing agent = 10:1, wherein the curing agent is an amine curing agent, specifically the H-1001 curing agent of Guangzhou Hengfeng New Material Co., Ltd.

[0047] The configuration process of epoxy modified phenolic resin

[0048] Put 100KG of phenol, 86KG of formaldehyde, 0.35KG of oxalic acid, and 10KG of water into the reactor for stirring (60-100 rpm), and heat at 60°C (reflux); Heat at ℃ for 2 hours to 135 minutes to condense. After the reaction is terminated, add 100kg of cold water. After standing for 30 minutes, remove the water with a suction pipe to obtain a phenolic resin. The molecular weight of ...

Embodiment 2

[0071] The method that present embodiment prepares emery cloth, material are basically the same as embodiment 1, and difference is:

[0072] The absolute dry weight of the cloth base material is 50-80g / m 2 ;

[0073] The coating amount of primer layer is 7-12g / m 2 ;

[0074] The sand planting particle size is 1500 mesh, and the sand planting amount is 40-60g / m 2 ;

[0075] The coating amount of the compound layer is 30-50g / m 2 ;

[0076] Anti-clogging coating modified water-based zinc stearate coating amount is 10-18g / m 2 ;

[0077] The abrasive cloth prepared in this embodiment is 1500 mesh, and the weight is 160-180g / m 2 , the thickness is 0.14mm.

[0078] Using the same type of stretching equipment as in Example 1, under normal temperature conditions, measure the strength parameters of the emery cloth prepared in this example, the radial breaking strength of the emery cloth is 638N / 5CM, and the transverse breaking strength is 361N / 5CM; 600N The elongation was 16.1...

Embodiment 3

[0081] The method that present embodiment prepares emery cloth, material are basically the same as embodiment 1, and difference is:

[0082] The absolute dry weight of the cloth base material is 50-80g / m 2 ;

[0083] The coating amount of primer layer is 10-15g / m 2 ;

[0084] The particle size of sand planting is 400 mesh, and the amount of sand planting is 70-100g / m 2 ;

[0085] The coating amount of the compound layer is 50-70g / m 2 ;

[0086] Anti-clogging coating modified water-based zinc stearate coating amount is 20-30g / m 2 ;

[0087] The emery cloth prepared in this embodiment is 400 mesh, and the weight is 220-240g / m 2 , the thickness is 0.2mm.

[0088] Using the same type of stretching equipment as in Example 1, under normal temperature conditions, measure the strength parameters of the emery cloth prepared in this example, the radial breaking strength of the emery cloth is 634N / 5CM, and the transverse breaking strength is 400N / 5CM; 600N The elongation was 16...

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Abstract

The invention discloses ultrathin ultra-soft smooth abrasive cloth and a production process thereof, and belongs to the field of coated abrasive tools. The ultrathin ultra-soft smooth abrasive cloth comprises a cloth base material, a bottom adhesive layer positioned on one side face of the cloth base material, an abrasive layer at least partially embedded into the bottom adhesive layer and a composite adhesive layer coating the abrasive layer, wherein the composite adhesive layer contains epoxy modified phenolic resin; and the epoxy modified phenolic resin is prepared from phenolic resin, epoxy resin, sodium oxide and water. The epoxy modified phenolic resin is adopted as the composite adhesive layer, the epoxy modified phenolic resin has the small shrinkage rate and good adhesion and mechanical performance, the middle abrasive layer is not likely to fall off, the service life is longer, and the product flatness, softness and strength parameters are obviously improved.

Description

technical field [0001] The invention belongs to the field of coated abrasives, and more specifically relates to an ultra-thin and ultra-soft smooth abrasive cloth and a production process thereof. Background technique [0002] Coated molds are abrasive tools that use adhesives to fix abrasives on flexible substrates such as paper, cloth, film or composite substrates. They are also called flexible abrasive tools. They mainly include abrasive cloth (paper) or abrasive belts, which are widely used. Grinding, polishing and sanding of non-metallic materials such as metal materials, wood, ceramics, plastics, leather, rubber and paint putty. Coated abrasives are usually composed of three parts: abrasives, binders and substrates. The manufacturing process generally includes steps such as substrate treatment, primer coating, sand planting, recoating (coating), drying, and cutting. [0003] The prior art with the Chinese patent application publication number CN107344336A discloses a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24D11/00B24D18/00
CPCB24D11/00B24D18/0072
Inventor 郭宇桓
Owner 古德尚新材料科技湖北有限公司
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