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A kind of preparation method of film sandpaper

A technology of sandpaper and thin film, which is applied in the field of thin film sandpaper preparation, can solve the problems of difficult comprehensive performance such as fine grinding with high precision, poor anti-clogging effect, rough processed surface, etc., and achieve good cutting and polishing ability, good sharpness, and processing smooth surface effect

Active Publication Date: 2016-11-16
DONGGUAN GOLDEN SUN ABRASIVES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] For the sandpaper products of the prior art, there are generally defects such as poor flexibility, easy deformation, rough processed surface, poor anti-clogging effect and low strength; its comprehensive performance is difficult to apply to high-precision fine grinding, such as automobile crankshafts , automotive painting, electronics, optical discs and other finishing

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Embodiment one, a kind of preparation method of film sandpaper comprises following process steps, specifically:

[0021] a. For a thickness of 75μm-125μm and a weight per unit area of ​​100-180g / m 2 Corona or chemical coating treatment for PET polyester film;

[0022] b. Evenly coat the primer on the surface of the PET polyester film. The primer is a bottom binder composed of polyamine resin, curing agent and organic solvent xylene, polyamine resin, curing agent and organic solvent xylene The weight ratio of each material is: 100:25:35;

[0023] c. Implant abrasives into the primer on the surface of the PET polyester film;

[0024] d. Pre-drying treatment;

[0025] e. After pre-drying treatment, apply glue on the surface of primer and abrasive, and evenly coat the second layer of adhesive on the surface of primer and abrasive, wherein the second layer of adhesive contains modified Reactive phenolic resin, coupling agent and grinding aid, the weight ratio of modified...

Embodiment 2

[0032] Embodiment two, a kind of preparation method of thin-film sandpaper comprises following process steps, specifically:

[0033] a. For a thickness of 75μm-125μm and a weight per unit area of ​​100-180g / m 2 Corona or chemical coating treatment for PET polyester film;

[0034] b. Evenly coat the primer on the surface of the PET polyester film. The primer is a bottom binder composed of polyamine resin, curing agent and organic solvent xylene, polyamine resin, curing agent and organic solvent xylene The weight ratio of each material is: 100:20:30;

[0035] c. Implant abrasives into the primer on the surface of the PET polyester film;

[0036] d. Pre-drying treatment;

[0037] e. After pre-drying treatment, apply glue on the surface of primer and abrasive, and evenly coat the second layer of adhesive on the surface of primer and abrasive, wherein the second layer of adhesive contains modified Reactive phenolic resin, coupling agent and grinding aid, the weight ratio of mod...

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PUM

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Abstract

The invention discloses a film sandpaper production method. The method includes the steps of PET (polyester) film treating, primer coating, abrasive embedding, pre-drying, composite adhesive coating, primary drying, curing and anti-clogging coating applying. A PET film treated through corona or chemical coating has strong adhesion. The primer is a bottom layer adhesive composed of polyamine resin, a curing agent and an organic solvent of xylene. A second layer adhesive comprises modified phenolic resin, a coupling agent and a grinding aid, enables abrasive to be firm in adhesion and can obtain good sharpness and cutting polishing capacity. The anti-clogging coating is composed of lubricating filler, an adhesive and an antistatic agent. By means of the film sandpaper production method, sandpaper good in flexibility, not prone to deformation, high in strength, good in anti-clogging effect and flat in machining surface can be produced.

Description

technical field [0001] The invention relates to the technical field of coated abrasives, in particular to a preparation method of film sandpaper. Background technique [0002] Sandpaper is a coated abrasive made by bonding abrasives to cloth, paper and other pliable materials with adhesives, which can be used for grinding and polishing; the main materials for making sandpaper include base material, Abrasives and binders. Traditional sandpaper generally uses cloth or paper as the substrate. The substrate is the carrier of abrasives and binders. It is the main reason for the flexibility of sandpaper. Among them, the types of substrates mainly include: cloth, paper, fiber, Non-woven fabrics, etc. [0003] For the sandpaper products of the prior art, there are generally defects such as poor flexibility, easy deformation, rough processed surface, poor anti-clogging effect and low strength; its comprehensive performance is difficult to apply to high-precision fine grinding, such...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B24D11/00
CPCB24D11/001
Inventor 方红农忠超卞振伟
Owner DONGGUAN GOLDEN SUN ABRASIVES
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