Plastic greenhouse film bonding method

Release time:

2023-04-13

1. Agent adhesive method. Mainly with vinyl chloride resin plastic adhesive can be bonded to repair polyvinyl chloride film, polyethylene film can be used polyurethane adhesive repair, and sometimes can also be used to burn hot small hacksaw blades hot tie.

2. Slurry adhesive repair method. Greenhouse film in the process of use, such as scraping, blowing wrinkles and other small damage, you can cut a piece of plastic, paste mud water in the damage can be.

3. Hot glue method. Prepare a straight and smooth wood as a mat board, nailed to the fine iron window screen, and will be fixed on the bench, in order to prevent the branding hurt plastic, to use a planer to flatten the side flute of the wood is more rounded and smooth plane. Each edge of the two films to be bonded is fitted to the wooden strip, overlapping each other by about 4-5 centimeters. By 3-4 people operating at the same time, by 2 people on both sides of the wooden strip were responsible for the "seam", the third person has been on the seam of the film to put a good 8-10 cm wide, 1.2-1.5 meters long kraft paper or old newspaper strips, cover the iron has been preheated along the end of the wooden strip, with the experience of the appropriate pressure, slowly pushed to the other end. The heat of the iron, downward pressure, as well as the speed of advancement should be under the paper of the two films heated to a certain degree of softening and stick together to the extent that the paper will then be uncovered, will be glued to a good section of the film to the other end of the wooden bar, and then repeated bonding of the next section, and then repeated until the film to the desired length.

One of the bonding film to master the temperature of the iron, bonding polyethylene film for the appropriate temperature of 100-110 ℃, PVC for 120-130 ℃, the temperature is low sticky, easy to crack later, the temperature is too high, easy to melt the film, in the seams there will be holes or film thinning.

The pressure used and the moving speed of the iron should be well matched with the temperature, the pressure used when the temperature is high should be small and the moving speed should be fast, and the pressure used when the temperature is low should be large and the moving speed should be slowed down. When the pad of paper strip appeared on the oil-like stains, indicating that the temperature is too high, the plastic has melted, at this time can not immediately remove the paper strip, should be cooled for a while, when the paper strip is not hot and then take, so that you can better ensure the quality of bonding. When branding the old film, the joints should be wiped clean, and the newspaper should be lightly with the film stuck together for the bonding of the right standard, otherwise the seams are easy to crack!