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