Air duct opening sealing viscose sponge with novel structure and preparation process thereof

Abstract

The invention discloses an air duct opening sealing mucilage glue sponge with a novel structure. The invention relates to the technical field of air-cooled refrigerator air duct openings. The sponge comprises an air duct opening sealing part, a stress dissipation part and a flanging fixing part, the stress dissipation part is located between the air duct opening sealing part and the flanging fixing part, and meanwhile the air duct opening sealing part, the stress dissipation part and the flanging fixing part are located in the same plane. And the back surfaces of the tuyere sealing part, the stress dissipation part and the flanging fixing part are coated with pressure-sensitive adhesive layers with the same thickness and the same components. The air port sealing part is arranged on the viscose sponge, so that the air port of the air-cooled refrigerator can be sealed, and secondly, the stress dissipation part solves the problem that when a low-cost PP (polypropylene) and other non-polarplastic air duct panel is applied, the bending part of the bonding corner of the sponge is overlarge in stress and is easy to warp and debond.

Description

technical field [0001] The invention belongs to the technical field, and in particular relates to a viscose sponge for sealing an air duct opening with a new structure and a preparation process thereof. Background technique [0002] With the rapid development of the refrigerator industry, air-cooled refrigerators have gradually replaced direct-cooled refrigerators, occupying a dominant position in the industry. For air-cooled refrigerators, the air duct is one of the most important parts, which directly determines the air volume and cooling performance of the air-cooled refrigerator. For the air duct, the sealing performance of the viscose sponge at the tuyere is a key factor affecting the cooling performance. After the problem of debonding and warping occurs, quality problems such as air leakage and freezing will occur at the air duct opening, and in severe cases, it will cause no cooling. In recent years, due to the cost pressure of the industry, low-cost PP plastic air ...

AI Technical Summary

Problems solved by technology

After the problem of debonding and warping occurs, quality problems such as air leakage and freezing will occur at the air duct opening, and in severe cases, it will cause no cooling

In recent years, due to the cost pressure of the industry, low-cost PP plastic air duct panels have gradually replaced ABS, PS and other common applications. Since the material itself is non-polar, the pressure-sensitive polyacrylic glue of viscose sponge is a polar material, resulting in viscose sponge. Warping and debonding in batches at the 90°bending and cladding place, the air leakage problem at the air duct opening is serious after assembly

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