The modified multifunctional aqueous vinyl acetate-ethylene copolymer emulsion (VAE emulsion) is a kind of emulsion with low residual monomers, low organic volatiles (TVOC) and low odor. The following are the specific features and information about the emulsion:

Low residual monomer:
VAE emulsions achieve the goal of low residual monomers through precise polymerization control and optimization of the process during production. The reduction of residual monomers helps to improve the quality and stability of the emulsion and reduce the impact on the environment and human health.
Low Organic Volatile Matter (TVOC) :
The emulsion is a low-VOC product, meaning it has a low content of volatile organic compounds. This helps to reduce the harmful substances released during the use of the emulsion, improve the working environment, and meet environmental protection requirements.
Low odor:
The emulsion adopts special formula and technology in the production process, which effectively reduces the smell of the product. The low odor properties make the lotion more comfortable during use and reduce irritation to the user’s senses.
Other properties:
In addition to the above features, VAE emulsions also have excellent bonding properties, water and alkali resistance, weather resistance and so on. These properties make the emulsion have a wide range of applications in adhesives, coatings, textile treatment and other fields.
Application field:
Due to its versatility and environmental protection, the emulsion is widely used in construction, packaging, textile and other fields. For example, in the field of construction, it can be used as interior and exterior paint, roof waterproof paint, etc. In the field of packaging, it can be used as an adhesive for various packaging materials; In the textile field, it can be used for coating, printing and dyeing of fabrics.
In summary, the modified multi-functional aqueous vinyl acetate-ethylene copolymer emulsion is a kind of emulsion with low residual monomer, low TVOC and low odor, which has excellent performance and wide application prospect.

Raw material preparation
Main monomers: Vinyl acetate (VAc) and ethylene are mixed as co-monomers in predetermined proportions.
Initiator: Select a suitable initiator, such as potassium persulfate or ammonium persulfate, to initiate the polymerization reaction.
Emulsifiers: Use highly effective emulsifiers such as sodium dodecyl benzene sulfonate to ensure emulsion stability.
pH regulator: such as sodium bicarbonate, used to adjust the pH of the emulsion.
Other additives: According to needs, plasticizer, buffer and other auxiliary raw materials can be added.
Polymerization process
Emulsion preparation:
Deionized water and emulsifier are added to a reaction vessel with a stirrer, thermometer, feeding device and condensing device, stirring evenly and heating to a predetermined temperature.
Add the mixed vinyl acetate and ethylene monomer, as well as the initiator and other additives.
Polymerization reaction:
Heat up to the polymerization temperature (usually between 50 ° C and 90 ° C) and maintain the appropriate stirring speed and reaction time (usually several hours).
In the polymerization process, the stability of the polymerization reaction and the performance of the emulsion are ensured by controlling the temperature, stirring speed and other parameters.
Post-processing:
After the polymerization, the emulsion is cooled to room temperature.
Impurities and unreacted monomers in the emulsion are removed through steps such as filtration to ensure that the residual monomer content is low.
3. TVOC control
Optimize the formula: by adjusting the monomer ratio, emulsifier type and dosage parameters, optimize the emulsion formula and reduce the TVOC content.
Vacuum distillation: In the process of emulsion preparation, vacuum distillation technology is used to effectively remove volatile organic compounds and reduce TVOC content.
4. Smell control
Choose low-odor monomer: preferentially use low-odor ethylene acetate and ethylene monomer to reduce emulsion odor.
Add odor inhibitors: Add an appropriate amount of odor inhibitors to the emulsion, such as fragrances, deodorants, etc., to further reduce the odor of the emulsion.
5. Performance testing and quality control
The properties of the prepared emulsion are tested, including residual monomer content, TVOC content, odor grade and other indicators to ensure that the product meets the quality standard.
If necessary, adjust the formula and process parameters according to the test results to further optimize the product quality.
6. Precautions
In the preparation process, pay attention to safety and environmental protection measures to avoid monomer leakage and environmental pollution.
Strictly control the quality of raw materials and formula ratio to ensure the stability and performance of the emulsion.
Monitor the parameters of the reaction process, adjust the operating conditions in time to ensure the quality of the emulsion.