Firstly, it is necessary to understand the causes of delamination in composite panels. Delamination usually occurs at the bonding interface between layers of materials, and the main reasons include: non-standard adhesive quality, uneven adhesive application, unreasonable hot pressing process, high moisture content of base material, improper storage environment, etc. In addition, external force impact or drastic changes in environmental temperature and humidity during transportation and installation may also lead to delamination of composite panels.



To avoid delamination problems, attention should be paid to the following aspects:

　　First, choose high-quality adhesives



Adhesive is the key material for bonding between layers of composite panels. High bonding strength, aging resistance, and environmental performance should be selected for adhesives, and appropriate adhesive types should be chosen according to the type and use environment of the composite panels. For example, waterproof adhesives with excellent waterproof performance should be used for composite panels used in damp environments.



Second, strictly control the adhesive application process



During the production process, ensuring the uniform application of adhesive is the basis for preventing delamination. Too thin adhesive application will result in insufficient bonding strength, while too thick application may cause poor curing of the adhesive layer, affecting the overall structural stability. Therefore, automated adhesive application equipment should be used, and the thickness and uniformity of the adhesive application should be checked regularly.



Third, optimize the hot pressing molding parameters

　　Hot pressing temperature, pressure, and time are the three key factors affecting the quality of composite. Appropriate hot pressing parameters should be set according to the material characteristics to ensure full curing of the adhesive and ensure close bonding between layers. Insufficient hot pressing will lead to poor bonding, while excessive heat may cause deformation of the panels or damage to the internal structure.



Fourth, control the moisture content of the base material



The moisture content of the base material (such as particleboard, plywood, etc.) has a significant impact on the quality of composite panels. Both excessively high and low moisture content can affect the penetration and curing effect of the adhesive, leading to poor bonding. It is usually recommended to control the moisture content of the base material between 6%-12%.



Fifth, reasonable storage and transportation



Composite panels should be stored in a ventilated and dry environment, avoiding direct sunlight and dampness. During transportation, avoid heavy pressure, collision, and drastic changes in temperature and humidity to prevent damage to the internal structure of the panels and cause delamination.



Sixth, correct installation and later maintenance

　　During installation, operations should be strictly in accordance with the construction specifications, avoiding improper operations such as knocking and bending. At the same time, attention should be paid to the control of environmental temperature and humidity during use, especially in damp areas, necessary moisture-proof measures should be taken.



In summary, avoiding delamination in composite panels is a systematic project, involving multiple links such as raw material selection, production process control, storage and transportation, and installation. Only by strictly controlling each link can the overall quality of composite panels be effectively improved, extending their service life, and meeting the demand of the modern construction and furniture industry for high-quality materials.