A kind of White emulsion composite paper box adhesive and preparation method thereof
Technical field
The present invention relates to a kind of chemical materials, more specifically relate to a kind of tackiness agent.
Background technology
At present, a lot of for carton adhesive kind, there are three-aldehyde glue and white glue with vinyl etc.Some tackiness agent production and application process in can discharge free state formaldehyde, to human body and environmental hazard serious; Some tackiness agent, water tolerance and wet fastness poor, easily moisture absorption in damp atmosphere, bonding strength is not high; At high temperature use can produce creep, Joint strength is declined, below-5 DEG C, stores easy freezing, and emulsion is damaged, and therefore causes its application greatly limited.The bonding strength needing research to make new advances is high, the tackiness agent of safety and environmental protection, good stability.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of White emulsion composite paper box adhesive and preparation method thereof is provided.
Technical scheme of the present invention is as follows:
A kind of White emulsion composite paper box adhesive, is characterized in that being made up of the raw material of following weight part: polyoxyethylene glycol 3-4, hydrogen peroxide 6-8, TriMethylolPropane(TMP) 3-4, tolylene diisocyanate 2-3, neopentyl glycol 3-4, sodium bicarbonate 2-3, citric acid 1-2, benzene emulsion 12-14, polyvinyl alcohol 8-10, white glue with vinyl 5-7, polyaminoester microball 3-4, morpholine 1-2, Sodium Persulfate 2-3, chitosan 5-6, polyvinylpyrrolidone 4-5, vinylformic acid 2-3, water 80-90.
The preparation method of described White emulsion composite paper box adhesive, is characterized in that comprising the following steps:
(1), by polyvinyl alcohol, chitosan, polyvinylpyrrolidone, polyoxyethylene glycol, sodium bicarbonate add water, be heated to 65-75 DEG C of dissolving, then add polyaminoester microball, morpholine, Sodium Persulfate, stirring reaction 1-2 hour;
(2), hydrogen peroxide, TriMethylolPropane(TMP), neopentyl glycol, vinylformic acid, tolylene diisocyanate are added in step (1) material, continue to stir 2-3 hour;
(3), by step (2) material mix with other remaining component, be heated to 60-70 DEG C, stir 1-2 hour, to obtain final product.
Invention adhesive is not containing organic solvent, not release formaldehyde, and adhesivity is good, stripping strength and hold tack high, for packed in cases, also can be applicable to Flexible-Packaging Industry.
Embodiment
A kind of White emulsion composite paper box adhesive, is made up of the raw material of following weight part (kilogram): polyoxyethylene glycol 3, hydrogen peroxide 6, TriMethylolPropane(TMP) 4, tolylene diisocyanate 2, neopentyl glycol 4, sodium bicarbonate 2, citric acid 1, benzene emulsion 14, polyvinyl alcohol 8, white glue with vinyl 7, polyaminoester microball 3, morpholine 2, Sodium Persulfate 2, chitosan 6, polyvinylpyrrolidone 5, vinylformic acid 2, water 80.
The preparation method of White emulsion composite paper box adhesive, comprises the following steps:
(1), by polyvinyl alcohol, chitosan, polyvinylpyrrolidone, polyoxyethylene glycol, sodium bicarbonate add water, be heated to 65-75 DEG C of dissolving, then add polyaminoester microball, morpholine, Sodium Persulfate, stirring reaction 1-2 hour;
(2), hydrogen peroxide, TriMethylolPropane(TMP), neopentyl glycol, vinylformic acid, tolylene diisocyanate are added in step (1) material, continue to stir 2-3 hour;
(3), by step (2) material mix with other remaining component, be heated to 60-70 DEG C, stir 1-2 hour, to obtain final product.
Tackiness agent prepared by the present invention, through detecting: after 4 hours, bonding strength reaches 19Mpa, water-tolerant.After bonding, put into 40 DEG C of water and soak 2 hours, bonding strength is 15Mpa.