Styrene acrylic lotion is often used in adhesives, coatings and other fields. In order to make this lotion play a good role in the production process, we need to pay attention to the following issues in the production process:

1. Reaction temperature: the reaction temperature has a great impact on the polymerization of styrene acrylic lotion. From the perspective of the feeding method and the target molecular weight of the polymer, the faster the initiator decomposes, the better, that is, the higher the reaction temperature, the better. Therefore, the reaction temperature needs to be controlled at the reaction temperature that just produces reflux. For the copolymerization of monomers with large differences in boiling points, the reaction temperature should be controlled below the boiling point of monomers with lower boiling points. After the reaction temperature is determined, Then check whether the proposed decomposition temperature of initiator is consistent.

2. Reaction time: from the perspective of molecular weight distribution, the shorter the reaction time is, the better. However, if the reaction time is too short, the monomer reaction is not complete, which will also cause waste of raw materials and performance degradation. Generally, the reaction time is 2-4 hours.

3. Mixing speed: the mixing speed has a great impact on the polymerization. If the mixing speed is too fast, it will produce a large shear force, the kinetic energy of the latex particles will increase, and the collision probability between them will increase, which is conducive to the aggregation; The stirring speed is too slow, the monomer and emulsifier are not fully mixed, and the monomer is not fully pre emulsified, which also helps to produce coalescence. At the same time, because the kinetics of lotion polymerization at the early stage is different from that at the late stage, the stirring speed also changes in the whole reaction process.

It can be seen from the above that nitrile latex manufacturers need to pay attention to the three issues of reaction temperature, reaction time and mixing speed when producing styrene acrylic lotion, so that the produced lotion can better have good water resistance, alkali resistance and scrub resistance, and can be more widely used in industrial production and play a better role.

The above content is presented by the styrene acrylic lotion manufacturer.