Does the thickness of bubble film affect its moisture resistance

2025-03-11 11:31:15

Generally speaking, the thickness of the Bubble Film will affect its moisture-proof performance to a certain extent, but it is not the only determining factor. The following aspects are analyzed:

Moisture proof principle of bubble film

Bubble film is mainly through its own plastic material to block water and moisture. The plastic itself has a certain hydrophobicity, which can form a physical barrier between the item and the external environment to prevent the intrusion of water vapor, so as to play a moisture proof role.

Effect of thickness on moisture resistance

Increased barrier effect: Thicker bubble film usually means more plastic material to block water vapor. In the case of the same other conditions, the thickness increases, the path of water vapor needs to penetrate becomes longer, the difficulty is increased, and the moisture can be blocked more effectively, and the moisture-proof performance is relatively better. For example, in the case of long-term storage or transportation in a humid environment, 3mm Thick Bubble Film can better protect items from moisture than 1mm thick bubble film.

Enhance the resistance to damage: the thicker bubble film is relatively tougher, and it is less likely to be damaged and torn during handling and storage. Once the bubble film is damaged, water vapor is easy to enter from the damaged place, affecting the moisture-proof effect. Therefore, the thicker bubble film can maintain its integrity to a certain extent and maintain its moisture-proof performance.

Other factors affecting moisture resistance

Material: Different materials of bubble film, even if the thickness is the same, moisture-proof performance may also be different. For example, the moisture resistance of bubble films with special moisture additives or with higher quality polyethylene raw materials may be better.

Bubble structure: Structural factors such as the size and density of the bubble will also affect the moisture resistance. If the bubbles are too large or unevenly distributed, some air channels may be formed within the film, making it easier for water vapor to pass through; And small and evenly distributed bubble film, moisture resistance may be better.

Processing technology: Whether the processing technology of the production of bubble film is advanced and mature will also affect its moisture-proof performance. For example, the process of good bubble film, the molecular structure of the plastic film is more compact, moisture resistance will be better.