CN1188129A - Adhesive - Google Patents

Abstract

The present invention discloses a paper plastic adhesive. Said invented adhesive is made up by using 6% of rosin, 12% of poluvinyl alcohol, 46% ethylene-vinyl acetate emuision, 0.5% of sorbitan monolauric ester, 2% of formaldehyde, 0.05% of polyethenoxy ether, 5.8% of toluene, 0.15% of sodium borate, 2% of vinyl acetate, 5.8% of n-butyl acrylate, 0.05% of copolymerization catalyst, 0.15% of ortho-dibutyl phthalate, 0.5% of sodium hydrogen carbonate and 19% of pure water through a certain preparation process at specific temp.. Said adhesive possesses the advantages of resisting fold, high strength, water-soluble and easy recovery, etc..

Description

A kind of adhesive

The present invention relates to a kind of bonded adhesives, is a kind of glue special that is suitable for wood pulp kraft paper and plastic knit-weaving fabric compound sticking particularly.

At present, be used for the bonding glue of wood pulp kraft paper and plastic knit-weaving fabric and mostly be common glue, have drawbacks such as easy to break, insoluble in water, intensity be low, especially intensity obviously reduces under high-temperature condition after the dehydration, thereby make that the bag of cement of making thus is difficult to reclaim, increased the Packing Fee and the environmental pollution of enterprise.

The purpose of the utility model is to provide a kind of wood pulp kraft paper and bonding modified version glue of plastic knit-weaving fabric of being suitable for, and has overcome the existing above-mentioned deficiency of common glue.Have after folding, molten water, high strength, the dehydration in the time of 95 ℃ advantages such as intensity is constant.

For reaching above-mentioned purpose, what the present invention adopted is that following raw material and technology realizes:

Prescription (weight ratio): rosin 6% polyvinyl alcohol 12% ethene-vinyl acetate emulsion 46% sorbitan mono-laurate 0.5% formaldehyde 2% Soxylat A 25-7 0.05% toluene 5.8% Sodium Tetraborate 0.15% vinyl acetate between to for plastic 2% butyl acrylate 5.8% catalyst for copolymerization 0.05% adjacent dibutyl carboxylic acid 0.15% sodium bicarbonate 0.5% pure water 19%

Technology: 1, colophonium powder is broken in the water that is not dissolved in 30 ℃-40 ℃, adds polyvinyl alcohol, ethene-vinyl acetate emulsion again, the companion is even, heats up 70 ℃, is incubated 30 minutes.

2, sorbitan mono-laurate, formaldehyde, Soxylat A 25-7, toluene, Sodium Tetraborate are added above solution stir evenly, drip vinyl acetate between to for plastic, butyl acrylate, catalyst for copolymerization after being warming up to 90 ℃ and mix thoroughly, be incubated and be cooled to 60 ℃ after 25 minutes

3, add phthalic acid two fourth vinegar again in the solution in the above, add sodium bicarbonate after mixing thoroughly, filter residue and cooling.

The present invention adopt plant industrial chemicals more than above-mentioned and production technique formulated, show that through test for several times art slurry kraft paper and plastic knit-weaving fabric bonding had good effect, improved the performance of present common glue greatly.

Below in conjunction with embodiment the present invention is done and to be described in further detail:

Embodiment:

1,6 gram colophonium powders is broken into the warm water that 30 ℃-40 ℃ of 19 grams are put at the end, adds the polyvinyl alcohol of 12 grams, the ethene-vinyl acetate emulsion of 46 grams, stir the companion evenly, be warming up to 70 ℃, be incubated 30 minutes.

2, above being added, the Sodium Tetraborate of the toluene of the Soxylat A 25-7 of the formaldehyde of the sorbitan mono-laurate of 0.5 gram, 2 grams, 0.05 gram, 5.8 grams, 0.15 gram stirs the companion evenly in the solution, heat up after 90 ℃, drip the vinyl acetate between to for plastic of 2 grams, the butyl acrylate of 5.8 grams, the catalyst for copolymerization of 0.05 gram again, mix insulation thoroughly and be cooled to 60 ℃ after 25 minutes

3, in the above in the solution, add the dibutyl phthalate of 0.15 gram, mix the Sodium bicarbonate that the back adds 0.5 gram thoroughly, promptly get the present invention after the filter residue cooling.

Claims (3)

1, a kind of adhesive is characterized in that it is finished by following raw material and technology:

Proportioning raw materials (weight percent): rosin 6% polyvinyl alcohol 12% ethene one acetate emulsion 46% sorbitan mono-laurate 0.5% formaldehyde 2% Soxylat A 25-7 0.05% toluene 5.8% Sodium Tetraborate 0.15% vinyl acetate between to for plastic 2% butyl acrylate 5.8% catalyst for copolymerization 0.05% adjacent dibutyl carboxylic acid 0.15% sodium bicarbonate 0.5% pure water 1.9%

Technology: 1, colophonium powder is broken in the warm water that the end is dissolved in 30 ℃-40 ℃, adds polyvinyl alcohol again, ethene one acetate emulsion companion is even, heats up 70 ℃, is incubated 30 minutes.

2, sorbitan mono-laurate, formaldehyde, Soxylat A 25-7, toluene, Sodium Tetraborate being added top solution stirs evenly.After being warming up to 90 ℃, dropping vinyl acetate between to for plastic, butyl acrylate, catalyst for copolymerization are mixed thoroughly, are incubated and are cooled to 60 ℃ after 25 minutes

3, add phthalic acid two fourth vinegar again in the solution in the above, add sodium bicarbonate after mixing thoroughly, filter residue and cooling.