The advantages of thickeners are mainly reflected in the following aspects:
Improving product stability and rheological properties: Thickeners can significantly increase the viscosity of melts or liquids, prevent flow during construction, and ensure that the product will not sag, drip or splash during construction, thereby improving the stability and rheological properties of the product.
Enhance mechanical properties and storage stability: In water-based adhesives or latex coatings, thickeners can not only prevent flow during construction, but also give the product excellent mechanical properties and long-term storage stability. At low shear rates, thickeners can significantly increase the viscosity of the system, while at high shear rates, the effect is minimal. This feature makes it play a core role in the thickening, stabilization and rheological property adjustment of latex coatings or water-based adhesives.
Prevent filler precipitation and pigment agglomeration: In the manufacturing process of adhesives and sealants, thickeners can effectively prevent filler precipitation and pigment agglomeration, and improve the uniformity and stability of the product. For example, during emulsion polymerization and latex preparation, thickeners can protect colloids and improve emulsion stability.
Improving construction performance: During construction, thickeners can flexibly adjust the viscosity of coatings or water-based adhesives, showing excellent thixotropy, ensuring smooth construction without sagging or dripping, while slowing down the rate of water loss of the film, increasing the glue application surface at one time, and improving construction efficiency.
Environmental protection and safety: Many thickeners are natural or synthetic hydrophilic polymer compounds, which have environmental advantages and safe, environmentally friendly, pollution-free formulas, and are not flammable or explosive. For example, cellulose thickeners such as methyl cellulose and carboxymethyl cellulose are highly praised for their excellent performance.