Controlled gelation

For diffusion-controlled gelation and low droplet fraction, qg follows a power-law dependence [27] ... 

Atlas Chemical Industries, Inc Controlled Gelation in Aqueous Explosives Containing Boric Acid... 

Most of Tara gum sold for industrial applications is made from the endosperm and is as pure as food-grade Tara gum. Industrial-grade modifiers, however, particularly as applied chemical additives, such as moisturizing properties, viscosity and stability, can be added to control gelation and decreased viscosity [31, 32]. These methods and their combinations have resulted in increased use of Tara gum and its consumption. 

The controlled gelation of PVOH solutions is important where penetration into a porous substrate is undesirable, e.g., paper coatings and adhesives. Boric acid and borax react strongly with PVOH and are widely used industrially as gelling agents. Poly (vinyl alcohol) is extremely sensitive to borax, which causes gelation by forming a bisdiol complex as shown below ... 

Other fields of application for PEs, which especially rely on the viscosity, are drilling and fracking [14], In these fields a controlled gelation point and gelation times are also necessary [14]. Due to the growing importance of this field, the basics of this field will also be discussed and references given. 

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