How much do you know about the precautions when using hot melt adhesive film?

Adhesives are materials that bond two or more materials and come in many types. Hot melt adhesive film is an adhesive widely used in the composite materials industry. The use of hot melt adhesive film is different from ordinary cold glue. In order to achieve the ideal hot melt adhesive film bonding effect, you need to start with the details. This article is to talk to you about the precautions for using hot melt adhesive film.

Correct selection is the key word

The so-called treatment of diseases requires the right medicine, and the same is true for the use of hot-melt adhesive film composite materials. Only by gluing according to the material can the real bonding force of the hot-melt adhesive film be exerted. Different materials and different surfaces have different characteristics, so the principles of the bonding machines they use are also different. According to the nature of the material to be adhered, the ideal bonding effect can be obtained by selecting a hot melt adhesive film that is suitable for it.

Treatment of bonding surfaces

When using hot melt adhesive film, the treatment of the bonding surface is easily overlooked. The remaining stains on the bonding surface will hinder the bonding, which will naturally reduce the bonding effect. At this time, it is necessary to pretreat the bonding surface to minimize the deterioration of the bonding effect caused by external factors.

Bonding temperature and time

The bonding temperature is a very important factor affecting the use of hot melt adhesive film, because hot melt adhesive only begins to melt at a certain temperature, so special attention must be paid to it. If the application temperature is too low, the hot melt adhesive powder will be insufficiently melted and have poor fluidity, which will affect the bonding effect; if the application temperature is too high, the hot melt adhesive film will be overly melted and the hot pressing time will not be adjusted in time, resulting in glue liquid Penetration is too large, resulting in insufficient glue layer. It should be noted that the operating time of hot melt adhesive film bonding is adjusted according to the corresponding temperature. In the case of high temperature, the time should be shorter; in the case of low temperature, the time should be lengthened accordingly.

The above are some precautions for using hot melt adhesive film. I hope it will be useful to everyone!