Starch ether Starch ether is an ether formed by the reaction of hydroxyl groups on starch glucose molecules with chemical reagents, called starch ether or etherified starch. The main varieties of modified starch ethers are: sodium carboxymethyl starch (CMS), hydrocarbon alkyl starch (HES), hydrocarbon propyl ethyl starch (HPS), cyanoethyl starch, etc. They all have excellent functions of water solubility, bonding, swelling, flow, covering, desizing, sizing, dispersion and stabilization, and are widely used.
The prospect of starch ether applied to dry powder mortar is also very good. Starch ether used in ready-mixed mortar can affect the consistency of mortar based on gypsum, cement and lime, and change the construction and sag resistance of mortar. Starch ethers are usually used in conjunction with non-modified and modified cellulose ethers. It is suitable for both neutral and alkaline systems, and is compatible with most additives in gypsum and cement products (such as surfactants, MC, starch and polyvinyl acetate and other water-soluble polymers).
Starch ether features:
The amount of starch ether mixed into the mortar improves the viscosity, water retention, stability and bonding strength of the mortar;
Starch ether can be compounded with cellulose ether in any proportion, so as to better improve the anti-sag effect of mortar.
In ceramic wall and floor tile adhesives, interface treatment agents, caulking agents and ordinary commercial mortars, starch ether can be used as the main thickening and water-retaining agent and stabilizer.
Modified starch ether can better meet some needs of mortar manufacturers.
In the application of cement-based and gypsum-based building materials: starch ether can improve sag resistance, improve construction performance, and higher mortar yield; quickly thicken, greatly improve material operation performance, anti-sag, anti-slip, and extend the material Open time, provide water retention, good compatibility with other admixtures. Starch ether can be applied to: cement or gypsum-based hand- or machine-sprayed plastering mortar, tile adhesive and jointing agent, masonry mortar, interior and exterior wall putty (cement-based, gypsum-based), various adhesives. etc.; its main function: it can quickly adjust the consistency of the final product, so that the material can easily reach the required consistency, so that the material can be applied quickly, and the formed plastic colloid has good operating performance.
Post time: Feb-14-2025