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Acrylic products adhesive method

Acrylic products bonding is a very critical process of acrylic processing, how to show the plexiglass clear and transparent characteristics, reflecting the value of acrylic alcohol and tobacco packaging crafts, the maximum increase in the quality of acrylic crafts and taste, bonding technology Played a pivotal role.

Plexiglass plate bonding is mainly affected by two aspects, one is the applicability of the adhesive itself; Second, the bonding skills.There are many types of adhesive in the domestic and foreign markets, there are two types, one is two components, such as Wan Nengjiao, epoxy resin; there is a single component, such as CHCl3 (chloroform). In general, a two-component adhesive is bonded by a curing reaction, and a one-component adhesive is a solvent that is finally volatilized to achieve adhesion.

Two-component adhesive is characterized by good bonding effect, no bubbles after bonding, no white, high strength. The disadvantage is that the operation is complex, difficult, curing time is long, slow, it is difficult to adapt to the requirements of mass production. The general one-component adhesive is characterized by fast, to meet the production process requirements of bulk products, the disadvantage is that the adhesive after the product is easy to produce bubbles, easy to white, poor weather resistance, which directly affects the plexiglass products External aesthetic and product quality, therefore, in the processing of plexiglass products, how to choose the right adhesive to improve the grade and grade of plexiglass products, bonding process must first solve a big problem.

In addition, the bonding skills are also very important, the following common on our several bonding process, a simple analysis of their practical experience.

1, docking: the two need to dock the plexiglass plate level on the operating platform, close together, and in the bottom of a tape, leaving a gap of not more than 0.3mm wide to prepare the coating adhesive. With a syringe to the adhesive from one side slowly and slowly from the gap into the until all filled, to be completely cured after the tape can be removed.

2, facade bonding: facade bonding is the most widely used a bonding technology, in the production of various plexiglass IT electronic digital display rack products are widely used. First, wipe the surface to be wiped clean. It is best to use the mold to achieve the bonding, so that the adhesive does not shake, help to improve the quality of bonding. 3mm thickness of the plexiglass plate bonding, can be pad into the fine wire, the use of capillary action to complete the bonding, before the curing agent in the extraction of metal wire, or can be used adhesive tape, and then paste the adhesive.

3, slope adhesive: Adhesive slope must use 90 degrees angle by the mold, in order to prevent the displacement of the sticky face. Binder adhesive should be uniform and slow. To be completely cured before they can be removed by the mold.

4, surface bonding: plane bonding is a relatively special bonding method. First, the surface will be wiped clean, and placed horizontally, in the above note the amount of adhesive. The other side of the plexiglass plate was placed on the side of the plexiglass plate coated with the adhesive, and then gently lowered down, and the bubbles were discharged from the side to complete the bonding. Plexiglass adhesives can erode the surface of plexiglass plates and leave traces that are difficult to remove, so you can use adhesive tape to protect areas that do not need to be bonded. Grease, dust or pores can prevent the adhesive from being evenly coated and leave bubbles. Too much use of the adhesive will cause the adhesive to shrink into the air. Direct blowing will make the edge of the adhesive surface due to the evaporation of the adhesive and white. Indoor humidity, temperature, etc. have a direct impact on the adhesion of plexiglass plate.

(Content from Internet)
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