Synthesis of the Hydrogel Polyurethane

Jian Sheng Zhang

doi:10.4028/www.scientific.net/AMR.1033-1034.34

Paper Titles

Reduction of Aromatic Nitro Compounds to Azoxy Compounds with Sodium Borohydride
p.18

Some Key Problems Encountered for Demulsifier Research
p.22

Synthesis and Properties of Anionic Maleic Monoester Carboxylate Polymeric Surfactants
p.26

Synthesis of Amyl Ferulate Catalyzed by Sodium Bisulfate Supported by Silica
p.30

Synthesis of the Hydrogel Polyurethane
p.34

Synthesis of 3-O-Caffeoyl-Quinide Catalyzed by p-Toluenesulfonic Acid
p.39

Determination of Rhodium in Waste Thiourea Rhodium Samples Using Teflon Pressure Vessel-Assisted Sample Digestion and ICP-OES
p.43

An Efficient Solvent-Free Synthesis of Bis(2-Tetrahydrobenzofuranyl)Alkanes Catalyzed by H₂SO₄•SiO₂
p.49

Determination of Rhodium in Rhodium-Loaded Carbon Catalysts Using Microwave-Assisted Sample Digestion and ICP-OES
p.53

HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 1033-1034Synthesis of the Hydrogel Polyurethane

Synthesis of the Hydrogel Polyurethane

Abstract:

The synthesis, blocking and unblocking technologic conditions of hydrogel polyurethane were researched. The results showed that it would improve the bonding strength of hydrogel polyurethane when the hydrophilic polyether polyol was mixed with lipophilic polyether polyol of 10%. And the prepolymer of water-soluble polyurethane was achieved with hydrophilic polyether polyol and lipophilic polyether polyol as the materials at a prepolymerization reaction temperature of 85°C with TDI and reaction time of 180min. Then the preferable result could be got at a choice of phenol as sealant which was used to seal the water-soluble polyurethane active group, n (-NCO):n (-OH)=1:1.2, dosage of dibutyltin dilaurate as catalyst of 0.3%, unblocking in hot water.