Application of vacuum pump in water - based coating adhesive
In this paper, a new kind of water-based film adhesive, applied in the vacuum aluminum plating pet composite glass paper production process, the printing plant shows that the adhesive has a fast drying speed, extrusion compound process is not easy to blister, flat, smooth film surface rubber good transparency, no yellowing, had no adverse effect on printing ink and other characteristics, is an ideal water film adhesive. The emulsion copolymerization product of acrylate and vinyl acetate, the glass transition temperature is lower than 0e, the production process is simple, no need to add viscosifier and other modifiers, the ph value is nearly neutral, no corrosion to the cots. The adhesive can also be used for other laminated packaging materials, such as wine packaging box paper, laminated paper bag, printing laminated cover paper manufacturing.
C vinegar vacuum aluminum plating film adhesive preparation principle of vacuum aluminum plating pet film with very smooth surface, glass cotton lap blanket card is a kind of advanced multilayer composite paper, specialized in the packaging of cigarette industry, its surface of benzene - c paper coating processing, has the characteristics of smooth softness not fluff, not easy to penetrate, general membrane adhesive should have easy sizing, opaque plastic, quick drying, even film, transparent, odorless, stick relay is more than its own strength requirements, such as glass paper also requires no bubbles, in the process of film does not affect the printing quality, etc. This adhesive adopts butyl acrylate as the main monomer, isooctyl acrylate and ethylene acetate as the secondary monomer, and hydroxyethyl acrylate as the copolymer structure of the cross-linked monomer to obtain a kind of emulsion adhesive with high solid content similar to the pressure-sensitive property with low vitrification temperature.
It has been proved to be an ideal new type of laminating adhesive with fast curing speed, large adhesion, smooth and smooth pressure film, no leakage and bubbling phenomenon, and no bad effect on the printing quality. Pma as protective colloid on the rubber, which can obtain good alkali stability, this is one of the key of this glue, butyl acrylate, isooctyl acrylate colloid good adhesion performance, vinyl acetate, acrylic hydroxyl ethyl ester with colloid cohesion, methyl acrylic endow colloid good polymerization stability and low temperature stability, and is conducive to the bonding properties of metal materials. The REDOX system with ammonium persulfate, formaldehyde and sodium hyposulfite as the initiator is beneficial to the synthesis of emulsion at lower temperature, which is very beneficial to the obtaining of ideal emulsion.
