Precautions for using hot melt adhesive film
Oct 05, 2024
Adhesive is a substance that bonds two or more materials together. There are many types. Hot melt film is an adhesive widely used in the composite materials industry. The use of hot melt film is different from ordinary cold glue. To achieve the ideal bonding effect of hot melt film, it is necessary to start from the details. This article will talk about the precautions in the use of hot melt film.
1. The key is to choose the right type: the so-called treatment requires the right medicine, and the same is true for the use of hot-melt plastic film composite materials. Only through compounding can the real adhesion of the hot-melt adhesive film be achieved. Different materials and surfaces have different properties, so the principles of the bonding machines they use are different. According to the properties of the bonded materials, choosing the right one can achieve the ideal bonding effect.
2. Treatment of the adhesive material surface: When using hot melt adhesive film, the treatment of the adhesive surface is easy to be neglected. The stains left on the adhesive surface will hinder adhesion and naturally reduce the bonding effect. At this time, it is necessary to pre-treat the adhesive surface to minimize the deterioration of the adhesive effect caused by external factors.
3. Bonding temperature and time: In the use of hot melt adhesive film, bonding temperature is a particularly important factor, because hot melt adhesive begins to melt at a certain temperature, so special attention should be paid. If the glue temperature is too low, the hot melt adhesive powder will not melt enough, the fluidity will be poor, and the bonding effect will be affected. If the glue temperature is too high, the hot melt adhesive film will melt too much, and if the hot pressing time is not adjusted in time, the glue layer will penetrate too much and the glue layer will lack glue. It should be noted that the operation time of hot melt adhesive film bonding is adjusted according to the temperature. When the temperature is high, the time is shorter. When the temperature is low, the time needs to be extended accordingly.
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