CN104927710A - Wood window adhesive and preparation method thereof - Google Patents

Abstract

The invention discloses a wood window adhesive. By using lactic acid/ glycerin organic zirconium which has an obvious temperature-sensitive cross-linking characteristic as a cross-linking agent and ethylene-ethyl acrylate copolymer fibre base fluid as a thickening agent, and through cross-linking action, gel with good temperature resistance and shearing resistance can be formed. Since fiber-treated copolymer base fluid is adopted, the surface activity of the copolymer is improved, a cross-linking effect is promoted and viscoelasticity and thixotropy are improved.

Description

A kind of timber window tackiness agent and preparation method thereof

Technical field

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

The present invention is achieved by the following technical solutions:

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

Ethylene-ethyl acrylate copolymer 200-240, polyvinyl acetate (PVA) 50-60, sodium bicarbonate 2-3, stannous sulfate 0.6-1, the salpeter solution 0.3-0.4 of sisal fibers 10-15, sp-80 1-1.4,10-12mol/l, zirconium oxychloride 1.3-2, lactic acid 0.5-1, glycerol 0.6-1, alkylated diphenylamine 0.1-0.4, clorafin 10-17, poly aspartic acid 0.7-2, calcium mahogany sulfonate 5.1-8.

A preparation method for timber window tackiness agent, comprises the following steps:

(1) by polyvinyl acetate (PVA) thermoplastic, add poly aspartic acid, alkylated diphenylamine, insulated and stirred 20-30 minute, obtain Preblend;

(2) sisal fibers being joined concentration is infiltrate 3-4 hour in the bisulfite potassium solution of 5-7%, takes out, and dries abrasive dust, mix with sodium bicarbonate, at 60-70 DEG C, stir 5-10 minute, join in 30-40 times of water, add sp-80 under agitation condition, stir, obtain fibre emulsion;

(3) in fibre emulsion, add ethylene-ethyl acrylate copolymer, drip the salpeter solution of above-mentioned 10-12mol/l, be heated to boiling, adjustment PH is 6-6.5, adds calcium mahogany sulfonate, is stirred to normal temperature, obtains copolymer fibre 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 copolymer fibre base fluid, organic zirconium crosslinker mixing, at 70-85 DEG C, be uniformly mixed 10-20 divide, discharging cools, and mixes, stirs, obtain organic zirconium gel with Preblend;

(6) mixed with each raw material of residue by above-mentioned machine zirconium gel, raised temperature is 170-180 DEG C, insulated and stirred 1-2 hour, adds each raw material of residue, continues to stir 30-40 minute, and through tank cooling, cut off shaping, dehydration, vacuum-drying, to obtain final product.

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;

Tackiness agent of the present invention is particularly suitable for the bonding between ligneous piece, and can adapt to rainy, the environment such as high temperature, humidity for a long time, binding property is good, environment friendly and pollution-free.

Embodiment

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

Embodiment 1:

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

The salpeter solution 0.4 of ethylene-ethyl acrylate copolymer 240, polyvinyl acetate (PVA) 60, sodium bicarbonate 3, stannous sulfate 0.6, sisal fibers 15, sp-80 1.4,12mol/l, zirconium oxychloride 1.3, lactic acid 0.5, glycerol 0.6, alkylated diphenylamine 0.4, clorafin 17, poly aspartic acid 0.7, calcium mahogany sulfonate 5.1.

A preparation method for timber window tackiness agent, comprises the following steps:

(1) by polyvinyl acetate (PVA) thermoplastic, add poly aspartic acid, alkylated diphenylamine, insulated and stirred 20 minutes, obtains Preblend;

(2) sisal fibers being joined concentration is infiltrate 4 hours in the bisulfite potassium solution of 7%, takes out, dries abrasive dust, mix with sodium bicarbonate, stir 10 minutes, join in 40 times of water, add sp-80, stir, obtain fibre emulsion under agitation condition at 70 DEG C;

(3) in fibre emulsion, add ethylene-ethyl acrylate copolymer, drip the salpeter solution of above-mentioned 12mol/l, be heated to boiling, regulate PH to be 6.5, add calcium mahogany sulfonate, be stirred to normal temperature, obtain copolymer fibre 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 copolymer fibre base fluid, organic zirconium crosslinker mixing, at 85 DEG C, be uniformly mixed 20 points, discharging cools, and mixes, stirs, obtain organic zirconium gel with Preblend;

(6) mixed with each raw material of residue by above-mentioned machine zirconium gel, raised temperature is 180 DEG C, insulated and stirred 2 hours, adds each raw material of residue, continues stirring 40 minutes, and through tank cooling, cut off shaping, dehydration, vacuum-drying, to obtain final product.

Performance test:

Cohesive strength: 3.6MPa;

Viscosity: 3100mPa.s.

Claims (2)

1. a timber window tackiness agent, is characterized in that what it was made up of the raw material of following weight parts:

Ethylene-ethyl acrylate copolymer 200-240, polyvinyl acetate (PVA) 50-60, sodium bicarbonate 2-3, stannous sulfate 0.6-1, the salpeter solution 0.3-0.4 of sisal fibers 10-15, sp-80 1-1.4,10-12mol/l, zirconium oxychloride 1.3-2, lactic acid 0.5-1, glycerol 0.6-1, alkylated diphenylamine 0.1-0.4, clorafin 10-17, poly aspartic acid 0.7-2, calcium mahogany sulfonate 5.1-8.

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

(1) by polyvinyl acetate (PVA) thermoplastic, add poly aspartic acid, alkylated diphenylamine, insulated and stirred 20-30 minute, obtain Preblend;

(2) sisal fibers being joined concentration is infiltrate 3-4 hour in the bisulfite potassium solution of 5-7%, takes out, and dries abrasive dust, mix with sodium bicarbonate, at 60-70 DEG C, stir 5-10 minute, join in 30-40 times of water, add sp-80 under agitation condition, stir, obtain fibre emulsion;

(3) in fibre emulsion, add ethylene-ethyl acrylate copolymer, drip the salpeter solution of above-mentioned 10-12mol/l, be heated to boiling, adjustment PH is 6-6.5, adds calcium mahogany sulfonate, is stirred to normal temperature, obtains copolymer fibre 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 copolymer fibre base fluid, organic zirconium crosslinker mixing, at 70-85 DEG C, be uniformly mixed 10-20 divide, discharging cools, and mixes, stirs, obtain organic zirconium gel with Preblend;

(6) mixed with each raw material of residue by above-mentioned machine zirconium gel, raised temperature is 170-180 DEG C, insulated and stirred 1-2 hour, adds each raw material of residue, continues to stir 30-40 minute, and through tank cooling, cut off shaping, dehydration, vacuum-drying, to obtain final product.