Water-Based Adhesive has been widely used in many fields due to its environmental protection and safety advantages, but its relatively slow drying speed is a challenge. Here are some ways to improve the drying speed of Water-Based Adhesive.
First, you can start with the formulation design. Choosing the right resin is one of the keys. Some resins with higher glass transition temperatures (Tg) can form a hard film faster during the drying process, thereby increasing the drying speed. At the same time, you can add an appropriate amount of fast-drying additives, such as organic solvents such as alcohols and ketones. These organic solvents are miscible with water to a certain extent and have a lower boiling point, which can accelerate the volatilization of water, thereby increasing the drying speed of the adhesive. However, it should be noted that the amount added should not be too much, so as not to affect the environmental performance and other properties of the adhesive.
Secondly, adjusting the construction process can also effectively improve the drying speed. Increasing the temperature of the construction environment is a common method. The increase in temperature can accelerate the evaporation rate of water, thereby making the adhesive dry faster. However, it should be noted that the temperature should not be too high, so as not to affect the performance of the adhesive or cause damage to the adherend. Increasing ventilation is also an effective measure. Good ventilation conditions can take away the volatilized water in time and speed up the drying process. In addition, advanced drying technologies such as infrared heating and microwave heating can also be used. These technologies can provide a large amount of heat energy in a short time and accelerate the drying of adhesives.
Furthermore, optimizing the surface treatment of the adherend can also help to increase the drying speed. Ensuring that the surface of the adherend is clean, dry, and free of impurities such as oil, dust, etc. can make the adhesive better adhere to the surface of the adherend, reduce the obstruction of moisture, and thus speed up the drying speed. For some adherends with strong water absorption, appropriate pretreatment can be carried out, such as coating with moisture-proof agents, etc., to reduce the absorption of moisture by the adherend and increase the drying speed of the adhesive.
Finally, during the production and storage process, it is necessary to pay attention to controlling the moisture content of Water-Based Adhesive. Try to avoid producing and storing adhesives in a humid environment to prevent the mixing of moisture. At the same time, sealed packaging and other methods can be used to reduce the contact between the adhesive and the outside air and reduce the absorption of moisture.
In short, through reasonable formula design, optimization of construction process, improvement of adherend surface treatment and control of moisture content, the drying speed of Water-Based Adhesive can be effectively improved, making it more efficient and convenient in practical application.
