How to paste acrylic to make Crafts
How to paste acrylic to make Crafts.
Paste Acrylic acrylic products are processed in a very critical part of the process, how to show clear and transparent plexiglass characteristics, reflecting a sense of worth Acrylic tobacco packaging products, and to maximize the quality and taste of acrylic crafts, bonding technology played a pivotal role.
Bonding plexiglass plate is mainly affected by two aspects:
1 applicability of the Paste itself;
2 bonding techniques.
There are a lot of Paste on the market today, there are two types, one is a two-component, such as Paste, epoxy resin; there is a single component, such as CCl3 (chloroform). In general, two-component Paste is achieved by a curing reaction bonding, one-component Paste is a volatile solvent, and ultimately achieve bonding.
Features two-component Paste bonding effect is good, no bubbles after bonding, not white, great strength. The disadvantage is complicated to operate, is difficult, the curing time is long, slow, difficult to adapt to the requirements of mass production. The general characteristics of the one-component Paste is fast, can meet the volume production process requirements, drawback is that after bonding products easy to produce bubbles, easy white, poor weather, which directly affect the plexiglass external appearance and product quality, and therefore, in plexiglass products processing, how to choose a suitable Paste, improve the quality and grade of plexiglass, is a big problem in the bonding process must first be resolved.
In addition, the bonding technique is also very important, here we have several common bonding process, a simple analysis of their practical experience.
1, the docking: the docking of two perspex plate to be placed on the horizontal platform, closed at the bottom of a sticky tape, leaving a gap width of not greater than 0.3mm to prepare an Paste-coated injection. With a syringe from the cracks in the Paste evenly from side slowly injected until all filled until completely cured after the tape can be thrown off.
2, facade Paste: Paste facade is the most widely used as a bonding technique, generally used in the production of plexiglass IT electronic digital display products. First of all surfaces to be bonded should be wiped clean. Best to use the cam to achieve bonding, the Paste material is not shaking, help to improve the quality of bonding. Perspex plate of 3mm thickness bonded to the thin metal wire mat, bonding is completed by capillary action, prior to curing of the Paste out of a metal wire or Paste tape may be used, apply the Paste bonding method .
3, the slope bonding: bonding ramp must be used by die 90o angle to prevent sticky surface displacement. Note Paste coating should be uniform, slowly. After curing can be completely removed by mold.
4, surface bonding: flat bonding is a special bonding methods. First, wipe the sticky surface is clean and place level, in the above note on the appropriate amount of Paste. The side of the diagonal contact another piece of plexiglass plate is coated with Paste plexiglass plate, then even slow down, drive out from the side of the bubble and complete bonding. Acrylic Paste can erode the surface of the plexiglass plate and leave traces difficult to eliminate, so you can use paste Paste tape without Paste way to protect the site. Grease, dust or porosity will hinder uniform coating of the Paste leaving bubbles. Excessive use into the air when a small amount of Paste will bond contraction. Edge of the hair will direct the bonding surface of the Paste due to evaporation and white. Indoor humidity, temperature, etc. have a direct influence on the bonding of the plexiglass plate.
