Water-soluble β-cyclodextrin cross-linked polymer and modified guar gum products

Water-soluble β-cyclodextrin cross-linked polymer

[Preparation method] Add a certain amount of β-cyclodextrin to the 33% NaOH aqueous solution, stir at room temperature for 13 hours and then at 30°C, according to the molar ratio of β-CD and epichlorohydrin (EP) respectively Add EP quickly for 1:6, 1:8, 1:9 and 1:10.

[Application] Zhou Yuyan and others also used epichlorohydrin as a crosslinking agent to synthesize water-soluble β-cyclodextrin cross-linked polymer in alkaline medium, and investigated the effect of water-soluble β-cyclodextrin cross-linked polymer on heavy metals.

Modified Guar Gum Products

Guar gum is a natural galactomannan gum extracted from the endosperm of guar seeds produced in India, Pakistan and other places

Figure 3-11 The molecular structure of guar gum

Although guar gum has good water solubility and thickening properties, the raw powder often has the following shortcomings: ①Cannot swell and hydrate quickly, and dissolve slowly; ②High water-insoluble content; ③Viscosity is difficult to control; ④Easy to be The microorganisms decompose and cannot be stored for a long time

Purification of Guar Gum

The barium gum complex with a mass fraction of 2.

Related links: β-cyclodextrin-polyacrylamide graft compound