CN104927714A - Edge-banding adhesive and preparation method thereof - Google Patents

Abstract

The invention discloses an edge-banding adhesive. Lactic acid/glycerol organo-zirconium is adopted as a cross-linking agent with remarkable temperature-sensitive cross-linking property, and ethylene-ethyl acrylate fiber-based fluid is adopted as a thickening agent. A gel with favorable temperature/shearing resistance can be formed through cross-linking action, the copolymer base liquid for fiber treatment is adopted to improve the surface activity of the copolymer, the cross-linking effect is promoted, and the viscoelasticity and the thixotropy are also improved.

Description

A kind of edge sealing tackiness agent and preparation method thereof

Technical field

The present invention relates to a kind of tackiness agent, particularly relate to a kind of edge sealing tackiness agent and preparation method thereof.

Background technology

Traditional vegetable jelly tackiness agent, at high temperature facile hydrolysis, poor to the protectiveness of base material, and the thickening capabilities of ethylene-ethyl acrylate copolymer is strong, heat resistance is good;

The most frequently used linking agent of usual acquisition polymer gel is organic boron or organic zirconium, and organic borate cross-linker heatproof is the highest can only reach 150 DEG C, and organic zirconium can be cross-linked in acid condition, and heatproof is high, can reach 200 DEG C, has broad application prospects.

Summary of the invention

Object of the present invention is just to provide a kind of edge sealing tackiness agent and preparation method thereof.

The present invention is achieved by the following technical solutions:

A kind of edge sealing tackiness agent, it is made up of the raw material of following weight parts:

Acetate starch 20-30, clorox 0.1-0.16, oxine 3-5, Modulan 2-4, the salpeter solution 0.3-0.4 of Calcium Chloride Powder Anhydrous 4-6, sp-80 0.8-2,10-12mol/l, ethylene-ethyl acrylate copolymer 200-210, zirconium oxychloride 1.3-2, lactic acid 0.5-1, glycerol 0.6-1, acid polyethylene 3.7-5, sisal fibers 10-15.

A preparation method for edge sealing tackiness agent as claimed in claim 1, is characterized in that comprising the following steps:

(1) get the 10-20% of above-mentioned acetate starch weight, join in 3-5 times of water, add calcium chloride, clorox, insulated and stirred 20-30 minute at 70-80 DEG C, obtains treated starch;

(2) by Modulan, oxine mixing, join in 40-50 times of water, be uniformly mixed 3-5 minute, add sp-80, stir, obtain emulsion;

(3) sisal fibers being joined concentration is infiltrate 3-4 hour in the bisulfite potassium solution of 5-7%, mix with treated starch after taking out, dry abrasive dust, join in above-mentioned emulsion, drip the salpeter solution of 10-12mol/l, be heated to boiling, add ethylene-ethyl acrylate copolymer, adjustment PH is 6-6.5, is stirred to normal temperature, obtains polymer fiber base fluid;

(4) joined by zirconium oxychloride in 2-3 times of water, stirring and dissolving, adds lactic acid, glycerol, and regulation system pH value, to 4-5, is uniformly mixed 4-5 hour, obtains organic zirconium crosslinker;

(5) by above-mentioned polymer fiber base fluid, organic zirconium crosslinker mixing, in the constant temperature oil bath of 80-90 DEG C, stir 20-30 minute, obtain organic zirconium gel;

(6) mix with residue each raw material by organic zirconium gel, raised temperature is 170-180 DEG C, insulated and stirred 2-3 hour, cools, cuts off shaping, centrifugally to dry, to obtain final product through tank.

Advantage of the present invention is:

The present invention with lactic acid/glycerol organic zirconium for linking agent, it has obvious temperature sensitive crosslinking feature, with ethylene-ethyl acrylate copolymer fiber base fluid for viscosifying agent, pass through crosslinked action, the gel with good temperature and shearing sustainability can be formed, adopt the multipolymer base fluid of fiber treatment, multipolymer surfactivity can be improved, promote cross-linking effect, improve visco-elasticity and thixotropy.

Adhesives of the present invention is strong, and rate of drying is fast, and not easily come unstuck, the shelf-time is long, easy construction, is specially adapted to the edge sealing of carton, carton, paper bag etc.

Embodiment

Below in conjunction with embodiment, the present invention is described in further detail:

Embodiment 1:

A kind of edge sealing tackiness agent, it is made up of the raw material of following weight parts:

The salpeter solution 0.4 of acetate starch 30, clorox 0.16, oxine 3, Modulan 2, Calcium Chloride Powder Anhydrous 4, sp-80 0.8,12mol/l, ethylene-ethyl acrylate copolymer 210, zirconium oxychloride 1.3, lactic acid 0.5, glycerol 0.6, acid polyethylene 3.7, sisal fibers 15.

A preparation method for edge sealing tackiness agent, comprises the following steps:

(1) get 20% of above-mentioned acetate starch weight, join in 5 times of water, add calcium chloride, clorox, at 80 DEG C, insulated and stirred 30 minutes, obtains treated starch;

(2) by Modulan, oxine mixing, join in 50 times of water, be uniformly mixed 5 minutes, add sp-80, stir, obtain emulsion;

(3) sisal fibers being joined concentration is infiltrate 3 hours in the bisulfite potassium solution of 5-7%, mix with treated starch after taking out, dry abrasive dust, join in above-mentioned emulsion, drip the salpeter solution of 12mol/l, be heated to boiling, add ethylene-ethyl acrylate copolymer, regulate PH to be 6.5, be stirred to normal temperature, obtain polymer fiber base fluid;

(4) joined by zirconium oxychloride in 2 times of water, stirring and dissolving, adds lactic acid, glycerol, and regulation system pH value to 4 is uniformly mixed 4 hours, obtains organic zirconium crosslinker;

(5) by above-mentioned polymer fiber base fluid, organic zirconium crosslinker mixing, stir 20 minutes in the constant temperature oil bath of 90 DEG C, obtain organic zirconium gel;

(6) mix with residue each raw material by organic zirconium gel, raised temperature is 180 DEG C, insulated and stirred 3 hours, cools, cuts off shaping, centrifugally to dry, to obtain final product through tank.

Performance test:

Cohesive strength: 3.7MPa;

Viscosity: 3400mPa.s.

Claims (2)

1. an edge sealing tackiness agent, is characterized in that what it was made up of the raw material of following weight parts:

Acetate starch 20-30, clorox 0.1-0.16, oxine 3-5, the salpeter solution 0.3-0.4 of Calcium Chloride Powder Anhydrous 4-6, sp-80 0.8-2,10-12mol/l, ethylene-ethyl acrylate copolymer 200-210, zirconium oxychloride 1.3-2, lactic acid 0.5-1, glycerol 0.6-1, acid polyethylene 3.7-5, sisal fibers 10-15, Modulan 2-4.

2. a preparation method for edge sealing tackiness agent as claimed in claim 1, is characterized in that comprising the following steps:

(1) get the 10-20% of above-mentioned acetate starch weight, join in 3-5 times of water, add calcium chloride, clorox, insulated and stirred 20-30 minute at 70-80 DEG C, obtains treated starch;

(2) by Modulan, oxine mixing, join in 40-50 times of water, be uniformly mixed 3-5 minute, add sp-80, stir, obtain emulsion;

(3) sisal fibers being joined concentration is infiltrate 3-4 hour in the bisulfite potassium solution of 5-7%, mix with treated starch after taking out, dry abrasive dust, join in above-mentioned emulsion, drip the salpeter solution of 10-12mol/l, be heated to boiling, add ethylene-ethyl acrylate copolymer, adjustment PH is 6-6.5, is stirred to normal temperature, obtains polymer fiber base fluid;

(4) joined by zirconium oxychloride in 2-3 times of water, stirring and dissolving, adds lactic acid, glycerol, and regulation system pH value, to 4-5, is uniformly mixed 4-5 hour, obtains organic zirconium crosslinker;

(5) by above-mentioned polymer fiber base fluid, organic zirconium crosslinker mixing, in the constant temperature oil bath of 80-90 DEG C, stir 20-30 minute, obtain organic zirconium gel;

(6) mix with residue each raw material by organic zirconium gel, raised temperature is 170-180 DEG C, insulated and stirred 2-3 hour, cools, cuts off shaping, centrifugally to dry, to obtain final product through tank.