How to make the polyvinyl alcohol glue formula?

In modern life, people use a lot of modern industrial products to add a lot of convenience to life. For example, glue is a commonly used tool material that can easily complete the bonding of certain parts of life. Polyvinyl alcohol glue is a type of glue that is widely used in almost all walks of life. Let’s take a look at the explanation of how to make the polyvinyl alcohol glue formula.

Recipe 1

Raw materials: polyvinyl alcohol 0-8%, polyvinyl acetate or ethylene-vinyl acetate or their mixed latex (N'XN 50Z) l. %~40%, appropriate amount of modifier, appropriate amount of thickener, 55%~88% of water; cement or gypsum and its retarder or activator 3%~25% in total (this solid inorganic adhesive can be a separate group and temporarily added when in use).

Preparation method: Take 30g of polyvinyl alcohol and add it to a heating pot filled with 400g of water, stir and heat to 90~100°C, keep warm and stir for about half an hour to completely dissolve the polyvinyl alcohol, then cool to below 80°C, add 300g of polyvinyl acetate (content 50%), 20g of thickener, and add water to the remainder to make the total amount 900g. The above is component A. When using, add component B: 100g of white cement containing a mixture of tricalcium silicate and dicalcium silicate or 100g of semi-hydrated gypsum and its retarder, stir well, apply glue, and implement pollution-free cold pressing production of artificial boards.

Recipe 2

Raw materials: polyvinyl alcohol 5% to 11%, modifier in appropriate amount, water 65% to 88%; cement or gypsum and its retarder or activator 5% to 25% in total (this inorganic component can be a separate group and added temporarily when used)

Preparation method: Take 75g of polyvinyl alcohol, add it to a heating pot filled with 750g of water, stir and heat to 90~100°C, keep warm and stir for half an hour to make it completely dissolved, then add an appropriate amount of modifier, and add water to the rest to make the total amount 880g. The above is component A. When using, add component P: 120g of white cement and activator, or 100g of hemihydrate gypsum and retarder, stir evenly, then apply glue and implement pollution-free cold pressing production of artificial board.

Recipe 3

Raw materials: polyvinyl alcohol 1%-7%, hydrolyzed starch 5%-30%, water 60%-88%; cement or gypsum and its retarder 3%-20% (this inorganic component can be prepared separately and added temporarily when in use).

Preparation method: Take 50g of polyvinyl alcohol, add it to a heating pot filled with 500g of water, stir and heat to 90~100~C, keep warm and stir to make it completely dissolved, then add 500g of starch glue containing 300g of hydrolyzed starch to make a total amount of 1000g. The above is component A. When using, add component B: an appropriate amount of curing agent, 100g of semi-hydrated gypsum and retarder, stir evenly, then apply glue, and implement pollution-free cold pressing production of artificial boards.