The nitrile latex supplier will show you the application of carboxylated styrene-butadiene latex for cement in the paper industry.

Preparation of styrene butadiene latex The styrene butadiene latex is a kind of synthetic latex, which is formed by the catalytic copolymerization of styrene and butadiene monomers with different proportions in lotion or solution. 

There are many varieties according to the content of styrene, emulsifier and polymerization temperature, and their properties and uses are also different. As a coating adhesive for paper processing, its styrene: butadiene=60~50:40~50, its product is milky white liquid, its solid content is about 45%~50%, and its pH value is 9.0~10.5. As an adhesive, it can make the coating paper obtain high pigment binding strength and wet friction prevention strength.

According to its molecular structure, it can be divided into non-carboxylated styrene-butadiene latex and carboxylated styrene-butadiene latex. The performance of the two is very different, and the wholesale price of carboxylated styrene-butadiene latex is affordable, so you need to buy it quickly.

Carboxycarboxylated styrene-butadiene latex has strong activity. With the increase of the carboxylation degree of the latex, the shear viscosity and water retention of the coated paper will also improve. However, under the action of high shear force, the coating shows the characteristics of shear thinning, which will be very suitable for high-speed scraper coating. In the synthesis of carboxylated styrene-butadiene latex, monomers such as nitriles, amides and esters are added or monomers containing carboxyl groups are added to improve the properties of the latex.

Because the latex lotion polymerization system is very complex and there are many influencing factors, in actual production, it is necessary to start from many aspects, such as the type of coating paper produced, quality requirements, type of coating machine, drying and finishing conditions, etc., according to the specific environment on the site. In a large number of practical work, it is necessary to summarize and understand the various characteristics of latex, develop strengths and avoid weaknesses, and select economic and suitable latex varieties.

With the rapid development of the printing industry, higher requirements are put forward for the paper industry, and to a certain extent, the further improvement of coating latex is needed to meet the market requirements.