Long-acting PO film coating liquid and preparation method thereof

Abstract

The invention discloses a long-acting PO film coating liquid and a preparation method thereof. The long-acting PO film coating liquid is prepared from the following components in percentage by weight: 45-50% of a mixture A, 28-33% of a mixture B, 0.6-1% of polyurethane emulsion and 16-18% of deionized water, the mixture A is prepared from 23 to 28 percent of nano aluminum oxide sol, 11 to 13 percent of nano zirconium oxide sol, 4 to 6 percent of surfactant, 5 to 7 percent of acrylic resin nano emulsion and 1 to 2 percent of water-based defoaming agent; and the mixture B is prepared from 23 to 28 percent of nano silicon dioxide sol, 4 to 5 percent of adhesion promoter and 2 to 3 percent of fatty alcohol-polyoxyethylene ether. The coating liquid is prepared from the nanometer sol with the large pore volume of 0.4 nm and the alkynediol surfactant through a raw material suction device, and the dripping persistence, the surface material scratching property and the film surface non-stickiness of the PO film coated with the coating liquid are remarkably improved.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a long-acting PO film coating solution and a preparation method thereof. Background technique [0002] The PO film coating solution of the existing domestic and foreign technologies can basically meet the requirements for the use of high transparency and multifunctional agricultural greenhouse films. However, after large-scale promotion and application, there are still some problems: due to the insufficient bonding force of the nanomaterials used and the polymer adhesive, although the dripping and defogging effect is excellent in the initial use, but in the long-term use, the film surface and the skeleton are in repeated contact. , causing damage to the coating, and in the repeated dry-wet alternate state, the effect of dripping and defogging decreases or even disappears. During the production process, the coating liquid requires multiple manual batching for each addition, resu...

AI Technical Summary

Problems solved by technology

However, after large-scale promotion and application, there are still some problems: due to the insufficient bonding force of the nanomaterials used and the polymer adhesive, although the effect of dripping and defogging is excellent in the initial use, but in the long-term use, the film surface and the skeleton are in repeated contact. , causing damage to the coating, and in the repeated dry-wet alternate state, the effect of dripping and defogging decreases or even disappears

During the production process, the coating liquid requires multiple manual batching for each addition, resulting in low production efficiency and error-prone, leading to unstable ratios

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