CN101735747A - Non-formaldehyde artificial board adhesive formula and manufacturing process thereof - Google Patents

Abstract

The invention provides a formaldehyde-free wood-based panel adhesive, which is made by mixing two liquids, that is, paraffin wax emulsion and polyvinyl alcohol mixed liquid, wherein the paraffin emulsified The liquid formulation is: paraffin wax, 32.9% by weight of the total weight, ammonia, 6.8% by weight of the total weight, oleic acid, 5.48% by weight of the total weight, water, 5.4% by weight of the total weight 54.82%; The formula of polyvinyl alcohol mixed liquid is: sugar, account for 3.66% of total weight by weight, glutinous rice flour, account for 4.89% of total weight by weight, polyvinyl alcohol, account for 3.05% of total weight by weight , water, accounting for 88.4% of the total weight by weight. The advantage of the present invention is that the man-made board is made by using the adhesive, which does not contain formaldehyde which is harmful to the human body.

Description

Formaldehyde-free wood-based panel adhesive formula and production process

technical field

The invention relates to an adhesive for making wood-based panels.

Background technique

The wood-based panels currently available on the market all contain formaldehyde. Using this wood-based panel to decorate a house will slowly release formaldehyde that is harmful to human health, because the adhesives used in wood-based panels contain formaldehyde. There is also no formaldehyde-free wood-based panel.

Contents of the invention

The object of the present invention is to provide a formaldehyde-free wood-based panel adhesive, which is made by mixing two kinds of liquids, i.e. paraffin wax emulsion and polyvinyl alcohol mixed liquid. , wherein, the paraffin emulsion formula is:

Paraffin wax accounts for 32.9% by weight of the total weight;

Ammonia by weight accounts for 6.8% of the total weight;

Oleic acid by weight accounts for 5.48% of the total weight;

Water by weight accounts for 54.82% of the total weight;

The formula of polyvinyl alcohol mixture is:

Sugar 3.66% by weight of the total weight;

Glutinous rice flour accounts for 4.89% of the total weight by weight;

Polyvinyl alcohol accounts for 3.05% of the total weight by weight;

Water accounts for 88.4% of the total weight by weight.

The manufacturing process of above-mentioned mixed solution is:

The steps to make paraffin emulsion are:

(1) Put the paraffin into the emulsification tank according to the weight ratio, open the steam valve and inject steam into the tank, so that the paraffin gradually melts into liquid;

(2) Start the fast mixer, add the oleic acid weighed in proportion, and wait for the oleic acid and the paraffin liquid to mix evenly through stirring;

(3) Add the water weighed in proportion, stop the rapid stirring, and turn to slow stirring;

(4) Gradually raise the temperature to 70°C while stirring slowly; then raise the temperature to 90°C and stir rapidly for 5 minutes;

(5) Close the steam valve, stop the steam supply, add ammonia water weighed in proportion, and stir rapidly for 5 minutes; the temperature is lowered to 70°C, and at the same time, stir slowly;

(6) Continue to cool down to 40°C-50°C, stop stirring and discharge immediately, and then make paraffin wax emulsion;

The preparation steps of polyvinyl alcohol mixed solution are:

(1) Weigh the sugar, glutinous rice flour and water in proportion, put them into the heating tank, open the steam valve, and heat to 100°C and stir quickly for 5 minutes; then turn to slow stirring for 2 hours;

(2) Raise the temperature to 90°C, slowly add polyvinyl alcohol that has been smashed in proportion, so that the inside of the tank is in a dilute lake state;

(3) cooling down to 45°C;

The paraffin emulsion in the preparation step (6) of the paraffin emulsion is mixed with the preparation step (3) of the polyvinyl alcohol mixture and stirred at a slow speed, that is, a formaldehyde-free wood-based panel adhesive.

The advantage of the present invention is that the man-made board is made by using the adhesive, which does not contain formaldehyde which is harmful to the human body.

Detailed ways

A formaldehyde-free wood-based panel adhesive, which is made by mixing two kinds of liquids, that is, paraffin emulsion and polyvinyl alcohol mixture. Among them, the paraffin emulsion is made :

(1) Put 12Kg of paraffin wax into the emulsification tank according to the weight ratio, and the emulsification tank can be heated; open the steam valve and inject steam into the tank, so that the paraffin wax gradually melts into liquid;

(2) Start the fast mixer, add 2Kg of oleic acid weighed in proportion, and wait for oleic acid and paraffin liquid to mix evenly through stirring;

(3) Add 20Kg of water weighed in proportion, stop the rapid stirring, and turn to slow stirring;

(4) Gradually raise the temperature to 70°C while stirring slowly; raise the temperature to 90°C and stir rapidly for 5 minutes;

(5) Close the steam valve, stop the steam supply, add ammonia water weighed in proportion, and stir rapidly for 5 minutes; the temperature is lowered to 70°C, and at the same time, stir slowly;

(6) Continue to cool down to 40°C-50°C, stop stirring and discharge to make paraffin wax emulsion;

The preparation steps of polyvinyl alcohol mixed solution are:

(4) Weigh 15Kg of sugar, 20Kg of glutinous rice flour and 362Kg of water in proportion, put them into the heating tank, open the steam valve, and heat to 100°C and stir quickly for 5 minutes; then turn to slow stirring for 2 hours;

(5) Warm up to 90°C, slowly add 12.5Kg of polyvinyl alcohol, which is pulpy in proportion, to make the tank in a dilute lake state;

(6) cooling down to 45°C;

The paraffin emulsion in the preparation step (6) of the paraffin emulsion is mixed with the preparation step (3) of the polyvinyl alcohol mixture and stirred at a slow speed, that is, a formaldehyde-free wood-based panel adhesive.

The advantage of the present invention is that the man-made board is made by using the adhesive, which does not contain formaldehyde which is harmful to the human body.

Claims (2)

1. formaldehydeless artificial board adhesive formula, this tackiness agent is formed by paraffin wax emulsion and two kinds of liquid mixing of polyvinyl alcohol mixed solution, wherein,

The paraffin wax emulsion prescription is:

Paraffin accounts for 32.9% of all wts by weight;

Ammoniacal liquor accounts for 6.8% of all wts by weight;

Oleic acid accounts for 5.48% of all wts by weight;

Water accounts for 54.82% of all wts by weight;

The prescription of polyvinyl alcohol mixed solution is:

Sugar accounts for 3.66% of all wts by weight;

Sticky rice flour accounts for 4.89% of all wts by weight;

Polyvinyl alcohol accounts for 3.05% of all wts by weight;

Water accounts for 88.4% of all wts by weight.

2. by the manufacture craft of the described formaldehydeless artificial board adhesive formula of claim 1, wherein, the paraffin wax emulsion making step is:

(1) weighs up paraffin by weight proportion and drop in the emulsion tank, open steam valve injecting steam in jar, make paraffin be melted into liquid gradually;

(2) start quick mixer, add the oleic acid that weighs up in proportion, treat that oleic acid and paraffin liquid are through mixing;

(3) add the water that weighs up in proportion, stop quick stirring, transfer at a slow speed and stirring;

(4) be warming up to 70 ℃ gradually, stir at a slow speed simultaneously; Temperature is risen to 90 ℃, stirred fast 5 minutes;

(5) the steam off valve stops steam supply, adds the ammoniacal liquor that weighs up in proportion, stirs fast 5 minutes; Temperature is reduced to 70 ℃, stirs at a slow speed simultaneously;

(6) continue to be cooled to 40-50 ℃, stopping to stir is discharging, makes paraffin wax emulsion; The making step of polyvinyl alcohol mixed solution is:

(1) weighs up sugar, sticky rice flour and water in proportion, put into the jar of heating, open steam valve, heat simultaneously and stirred 5 minutes fast to 100 ℃; Transfer to then and stir 2 hours at a slow speed;

(2) be warming up to 90 ℃, slowly add completely mashed in proportion good polyvinyl alcohol, make to be rare lake state in the jar;

(3) be cooled to 45 ℃;

With the paraffin wax emulsion of paraffin wax emulsion making step (6), mix stirring at a slow speed with the making step (3) of polyvinyl alcohol mixed solution, promptly be formaldehydeless artificial board adhesive.