Domestic cationic rosin sizing agent there are three kinds of methods: cationic method, the cationic emulsion method and the transformation method.
Cationic law
Itself cationic use the reaction of the carboxyl or small monomer rosin and unsaturated cationic copolymer introduced in the rosin molecule cationic achieve cationic, namely through the rosin itself to the formation of the cation, then add the cationic or non-ionic surfactant agent rosin emulsified and dispersed, some cationic rosin itself is a surface active agent can be directly on the rosin emulsified and dispersed to obtain high dispersion glue. The formation of cation resin such as rosin and unsaturated quaternary ammonium salts by the Diels-Alder reaction. Unsaturated monomer and rosin acid copolymer ene Class C trimethyl ammonium chloride, allyl butyl trimethyl ammonium chloride, dimethyl (dimethylamino) ethyl acrylate and so on. The cationic rosin, synthetic methods: abietic acid with epichlorohydrin reaction and generate intermediates and then further reacted with amines to the formation of quaternary ammonium salts can also be as rosin Mr. glycidyl, and then amination quarter post-ammonium quaternary ammonium salt; rosin acid is first formed with diethylene triamine amide, and then dimethyl sulfate quaternized; rosin amine reaction with ethylene oxide generated rosin acid polyoxyethylene ether, quaternary ammonium salt with chlorine methylamines .
Cationic rosin sizing material is generally difficult to emulsify, to select the appropriate emulsifier, emulsifying temperature and time conditions. Studies have shown that certain amount according to the method the synthesis of their own cationic rosin material, respectively, under mechanical stirring the water with the temperature, mass fraction of 0.1% peregal -15 aqueous solution, 0.1% OP-10 aqueous solution 0.1% TX-10 solution dubbed a certain concentration of latex, rubber latex interface migration rate determined by electrophoresis, the calculation of the zeta potential of 30 mV, more than the product of the U.S. Hercules .
Itself cationic use the reaction of the carboxyl or small monomer rosin and unsaturated cationic copolymer introduced in the rosin molecule cationic achieve cationic, namely through the rosin itself to the formation of the cation, then add the cationic or non-ionic surfactant agent rosin emulsified and dispersed, some cationic rosin itself is a surface active agent can be directly on the rosin emulsified and dispersed to obtain high dispersion glue. The formation of cation resin such as rosin and unsaturated quaternary ammonium salts by the Diels-Alder reaction. Unsaturated monomer and rosin acid copolymer ene Class C trimethyl ammonium chloride, allyl butyl trimethyl ammonium chloride, dimethyl (dimethylamino) ethyl acrylate and so on. The cationic rosin, synthetic methods: abietic acid with epichlorohydrin reaction and generate intermediates and then further reacted with amines to the formation of quaternary ammonium salts can also be as rosin Mr. glycidyl, and then amination quarter post-ammonium quaternary ammonium salt; rosin acid is first formed with diethylene triamine amide, and then dimethyl sulfate quaternized; rosin amine reaction with ethylene oxide generated rosin acid polyoxyethylene ether, quaternary ammonium salt with chlorine methylamines .
Cationic rosin sizing material is generally difficult to emulsify, to select the appropriate emulsifier, emulsifying temperature and time conditions. Studies have shown that certain amount according to the method the synthesis of their own cationic rosin material, respectively, under mechanical stirring the water with the temperature, mass fraction of 0.1% peregal -15 aqueous solution, 0.1% OP-10 aqueous solution 0.1% TX-10 solution dubbed a certain concentration of latex, rubber latex interface migration rate determined by electrophoresis, the calculation of the zeta potential of 30 mV, more than the product of the U.S. Hercules .
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