CN105017999A - Environmentally-friendly formaldehyde-free wood adhesive - Google Patents

Abstract

The invention discloses an environmentally-friendly formaldehyde-free wood adhesive. The wood adhesive comprises, by weight, 70-80 parts of chlorinated polyethylene, 2-3 parts of tea seed powder, 1-2 parts of lignin, 6-8 parts of precipitated barium sulfate, 2-4 parts of barium carbonate, 3-4 parts of aluminum silicate ceramic fibers, 1-2 parts of calcium lactate, 0.6-1 part of aluminum powder, 0.4-1 part of polyoxyethylene castor oil ether, 1-2 parts of polyepoxysuccinic acid, 9-12 parts of fully refined paraffin wax, 0.1-0.2 parts of trimethylolpropane, 1-2 parts of tristearin, 0.4-1 part of dicumyl peroxide, 2-3 parts of epoxidized soybean oil and 6-7 parts of a bio-adhesive. The bio-adhesive adopts elm bark powder as a structural reinforcing agent, and cooperates with high viscosity polyacrylamide to make formed gel have the characteristics of fibers and have certain toughness, so the viscosity of the above obtained finished product is improved, and the toughness of the finished product is also improved.

Description

A kind of environmental protection formaldehyde-free wood glue

Technical field

The present invention relates generally to glue field, particularly relates to a kind of environmental protection formaldehyde-free wood glue.

Background technology

The kind of current wood adhesive is a lot, artificial liner enterprise mainly uses Precondensed UreaFormaldehyde Resin, the adhesive producing fiberboards such as resol, glued board, the sheet materials such as shaving board, have plenty of at original aqueous polyvinyl acetate emulsion, ACRYLIC EMULSION, on the basis of polyurethane adhesive etc., develop soy based wood adhesives successively, starch-base timber adhesive, other farm crop sill material sticks, the glue kinds such as modified isocyanate tackiness agent, although there is certain cohesiveness, but still there is a lot of shortcomings, some weathering resistancies are poor, resistance to boiling water is not strong, freeze proof, the property such as antiacid is bad, colloid can be made to go bad, thus lose bond effect.

Summary of the invention

The object of the invention is just to provide a kind of environmental protection formaldehyde-free wood glue.

The present invention is achieved by the following technical solutions:

A kind of environmental protection formaldehyde-free wood glue, is characterized in that what it was made up of the raw material of following weight parts:

Chlorinatedpolyethylene 70-80, tea seed powder 2-3, xylogen 1-2, process white 6-8, barium carbonate 2-4, alumina-silicate ceramic fibre 3-4, calcium lactate 1-2, aluminium powder 0.6-1, castor oil polyoxyethylene ether 0.4-1, poly-epoxy succinic acid 1-2, paraffin wax fully refined 9-12, TriMethylolPropane(TMP) 0.1-0.2, Tristearoylglycerol 1-2, dicumyl peroxide 0.4-1, epoxy soybean oil 2-3, biological binding agent 6-7;

Described biological binding agent is made up of the raw material of following weight parts:

S-WAT 0.4-0.5, structure toughener 4-5, acetate starch 10-11, propylene glycol phenylate 4-5, polyacrylamide 4-6, Tiorco 677 0.7-2, alkyl glycoside 1-2, water soluble phenol resin 1-3, water 180-200;

Joined by polyacrylamide in 6-10 times of water, be mixed with solution, add water soluble phenol resin, adjustment PH is 6-8, adds structure toughener, S-WAT, stirs, and obtains liquid a; By acetate starch, the mixing of propylene glycol phenylate, join the 80-90% of residue water weight, be uniformly mixed 10-14 minute at 60-70 DEG C, obtain liquid b; The mixing of each raw material will be remained, stir, obtain liquid c; Mixed with liquid b by liquid a, 300-350 rev/min of dispersed with stirring 6-10 minute, adds liquid c, stir be placed on 80-85 DEG C water-bath in thermostatically heating 10-12 hour, obtain described biological binding agent;

The sodium hydroxide solution putting into 30-40% after Cortex ulmi pumilae abrasive dust is soaked 2-3 hour by the preparation method of described structure toughener, takes out and dries.

The preparation method of described environmental protection formaldehyde-free wood glue, comprises the following steps:

By process white, barium carbonate mixing, add epoxy soybean oil, at 70-80 DEG C, be uniformly mixed 3-5 minute, add aluminium powder, TriMethylolPropane(TMP), 100-120 rev/min of dispersed with stirring 3-4 minute;

By castor oil polyoxyethylene ether, Tristearoylglycerol mixing, paraffin wax fully refined, poly-epoxy succinic acid is added after stirring, insulated and stirred 4-6 minute at 70-90 DEG C, add 10-20%, the alumina-silicate ceramic fibre of above-mentioned chlorinatedpolyethylene weight, stir, add tea seed powder, dicumyl peroxide, 80-100 rev/min of dispersed with stirring 20-30 minute;

Each raw material after above-mentioned process mix with residue each raw material, sends into high-speed mixer, mixing even after send into mill mixing, abundant post-tensioning to be mixed goes out glued membrane cooling, tacky film is laid between wood single-plate, pressing conditions: pressure 1-2Mpa, temperature 110-170 DEG C, time 2-10min.

Advantage of the present invention is:

Biological binding agent of the present invention adopts Cortex ulmi pumilae powder as structure toughener, coordinates full-bodied polyacrylamide, makes the gel formed have the feature of fiber, makes gel have certain toughness, while raising finished product viscosity, turn improves the toughness of finished product;

Glue of the present invention containing formaldehyde and organic volatile, has not fundamentally been stopped source of pollution, all can not have been damaged, meet national requirements for environmental protection to environment and human body, and cohesiveness is strong, long service life, and technique preparation is simple.

Embodiment

Embodiment 1

A kind of environmental protection formaldehyde-free wood glue, it is made up of the raw material of following weight parts:

Chlorinatedpolyethylene 70, tea seed powder 2, xylogen 1, process white 6, barium carbonate 2, alumina-silicate ceramic fibre 3, calcium lactate 1, aluminium powder 0.6, castor oil polyoxyethylene ether 0.6, poly-epoxy succinic acid 1, paraffin wax fully refined 9, TriMethylolPropane(TMP) 0.1, Tristearoylglycerol 1, dicumyl peroxide 0.4, epoxy soybean oil 2, biological binding agent 6;

Described biological binding agent is made up of the raw material of following weight parts:

S-WAT 0.4, structure toughener 4, acetate starch 11, propylene glycol phenylate 5, polyacrylamide 4, Tiorco 677 0.7, alkyl glycoside 2, water soluble phenol resin 2, water 200;

Polyacrylamide is joined in 6 times of water, be mixed with solution, add water soluble phenol resin, regulate PH to be 8, add structure toughener, S-WAT, stir, obtain liquid a; By acetate starch, the mixing of propylene glycol phenylate, be uniformly mixed 14 minutes at joining 80%, 70 DEG C of residue water weight, obtain liquid b; The mixing of each raw material will be remained, stir, obtain liquid c; Mixed with liquid b by liquid a, 300 revs/min of dispersed with stirring 10 minutes, add liquid c, stir be placed on 85 DEG C water-bath in thermostatically heating 10 hours, obtain described biological binding agent;

The sodium hydroxide solution putting into 30% after Cortex ulmi pumilae abrasive dust soaks 3 hours by the preparation method of described structure toughener, takes out and dries.

The preparation method of described environmental protection formaldehyde-free wood glue, is characterized in that comprising the following steps:

By process white, barium carbonate mixing, add epoxy soybean oil, at 70 DEG C, be uniformly mixed 3 minutes, add aluminium powder, TriMethylolPropane(TMP), 100 revs/min of dispersed with stirring 3 minutes;

By castor oil polyoxyethylene ether, Tristearoylglycerol mixing, paraffin wax fully refined, poly-epoxy succinic acid is added after stirring, insulated and stirred 4 minutes at 70 DEG C, add 20% of above-mentioned chlorinatedpolyethylene weight, alumina-silicate ceramic fibre, stir, add tea seed powder, dicumyl peroxide, 80 revs/min of dispersed with stirring 20 minutes;

Each raw material after above-mentioned process mix with residue each raw material, sends into high-speed mixer, mixing even after send into mill mixing, abundant post-tensioning to be mixed goes out glued membrane cooling, tacky film is laid between wood single-plate, pressing conditions: pressure 1Mpa, temperature 110 DEG C, time 10min.

The pressing plate test result of above-described embodiment, bonding strength is greater than 0.80Mpa, meets national standard.

Claims (2)

1. an environmental protection formaldehyde-free wood glue, is characterized in that what it was made up of the raw material of following weight parts:

Chlorinatedpolyethylene 70-80, tea seed powder 2-3, xylogen 1-2, process white 6-8, barium carbonate 2-4, alumina-silicate ceramic fibre 3-4, calcium lactate 1-2, aluminium powder 0.6-1, castor oil polyoxyethylene ether 0.4-1, poly-epoxy succinic acid 1-2, paraffin wax fully refined 9-12, TriMethylolPropane(TMP) 0.1-0.2, Tristearoylglycerol 1-2, dicumyl peroxide 0.4-1, epoxy soybean oil 2-3, biological binding agent 6-7;

Described biological binding agent is made up of the raw material of following weight parts:

S-WAT 0.4-0.5, structure toughener 4-5, acetate starch 10-11, propylene glycol phenylate 4-5, polyacrylamide 4-6, Tiorco 677 0.7-2, alkyl glycoside 1-2, water soluble phenol resin 1-3, water 180-200;

Joined by polyacrylamide in 6-10 times of water, be mixed with solution, add water soluble phenol resin, adjustment PH is 6-8, adds structure toughener, S-WAT, stirs, and obtains liquid a; By acetate starch, the mixing of propylene glycol phenylate, add the 80-90% of residue water weight, be uniformly mixed 10-14 minute at 60-70 DEG C, obtain liquid b; The mixing of each raw material will be remained, stir, obtain liquid c; Mixed with liquid b by liquid a, 300-350 rev/min of dispersed with stirring 6-10 minute, adds liquid c, stir be placed on 80-85 DEG C water-bath in thermostatically heating 10-12 hour, obtain described biological binding agent;

The sodium hydroxide solution putting into 30-40% after Cortex ulmi pumilae abrasive dust is soaked 2-3 hour by the preparation method of described structure toughener, takes out and dries.

2. a preparation method for environmental protection formaldehyde-free wood glue as claimed in claim 1, is characterized in that comprising the following steps:

By process white, barium carbonate mixing, add epoxy soybean oil, at 70-80 DEG C, be uniformly mixed 3-5 minute, add aluminium powder, TriMethylolPropane(TMP), 100-120 rev/min of dispersed with stirring 3-4 minute;

By castor oil polyoxyethylene ether, Tristearoylglycerol mixing, paraffin wax fully refined, poly-epoxy succinic acid is added after stirring, insulated and stirred 4-6 minute at 70-90 DEG C, add 10-20%, the alumina-silicate ceramic fibre of above-mentioned chlorinatedpolyethylene weight, stir, add tea seed powder, dicumyl peroxide, 80-100 rev/min of dispersed with stirring 20-30 minute;

Each raw material after above-mentioned process mix with residue each raw material, sends into high-speed mixer, mixing even after send into mill mixing, abundant post-tensioning to be mixed goes out glued membrane cooling, tacky film is laid between wood single-plate, pressing conditions: pressure 1-2Mpa, temperature 110-170 DEG C, time 2-10min.