White latex, also known as white glue, is an indispensable chemical adhesive for the production of sheet metal processing furniture. It has the advantages of high viscosity, strong resistance, fast solidification, etc. This kind of product has low cost, simple process and can be produced under general conditions.

1. Raw material ratio: 46 parts of vinyl acetate, 2.5 parts of polyvinyl alcohol, 5 parts of dibutylphthalate, 45.5 parts of distilled water, and 1 part of potassium persulfate.

Second, the operation method:

(1) PVA and distilled water are mixed into a reaction vessel, slowly heated to 80°C, fully stirred and fully dissolved after 4-6 hours. (2) After cooling down to 60-65 degrees, keep constant temperature, add 15% of the amount of formula to vinyl acetate, add 40% of potassium persulfate according to the amount of formula. (3) During the reaction, heat is released and the temperature begins to rise automatically. When the temperature reaches 80 degrees, vinyl acetate is added in batches according to the dosage of the formula. Each time, 10% is added and it is added within 6-8 hours. (4) During the gradual addition of vinyl acetate, 4-6% of potassium persulfate is added in divided portions every hour. After the addition of vinyl acetate, the remaining potassium sulfate is poured into the reaction vessel and the temperature rises. To 90-95%. (5) Incubate for 30 minutes, then add dibutyl phthalate, a plasticizer, to 50°C when it is cooled to 50°C. Stir uniformly and naturally cool to room temperature to obtain the finished product.

The appearance of the white latex is a white uniform emulsion, and there should be no stratification for long-term placement.

White latex simple production technology

White latex, also known as polyvinyl acetate emulsion, or polyvinyl acetate emulsion, a white viscous liquid, is one of the most widely used adhesives.

First, raw materials and ratio (weight parts)

Vinyl acetate 44, polyvinyl alcohol 4, dibutyl phthalate 3, octanol 1, ammonium persulfate 0.1, water 47.9 (preferably distilled water)

Second, production technology

1. Mix decanoyl phthalate with octanol and stir it for dissolution.

2. Add water to the reaction kettle with a jacket, or heat it with a simple device to keep the water to 70 degrees. Add polyvinyl alcohol under stirring, raise the temperature to 90 degrees, and keep until completely dissolved.

3. Allow the solution to cool down to 66-69 degrees and add vinyl acetate while stirring.

4. Add a prepared mixture of dibutyl phthalate and octanol.

5. Finally add ammonium persulfate, stir and mix evenly, and conduct emulsion polymerization at 66-69 degrees to obtain white viscous white latex.

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