Synthetic method of low-solvent block silicone oil and hand feeling finishing agent containing low-solvent block silicone oil
A technology of block silicone oil and synthesis method, which is applied in the direction of improved hand feeling fiber, fiber treatment, textiles and papermaking, etc., can solve the problems of easy demulsification, high cost, yellowing, etc., and achieve the effect of improving flexibility and stable quality
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[0021] Example one
[0022] A method for synthesizing low-solvent block silicone oil, including the following steps: Step 1. Add low-hydrogen-containing silicone oil and allyl epoxy polyether with a molar ratio of 1:2 to the reaction kettle, wherein the low-hydrogen silicone oil at the end is added The molecular weight is 4000, and the molecular weight of allyl epoxy polyether is 500-2000. Then add a certain amount of isopropanol to the reactor, heat the reactor to 70°C, stir evenly, add a certain amount of chloroplatinic acid, keep the temperature for 4 hours, and then lower the temperature to below 40°C and discharge to obtain the intermediate Step 2: Put the intermediate and diethylenetriamine with a molar ratio of 1:1 into the reaction kettle, keep the reaction at 80°C for 12 hours, and cool to below 40°C to obtain low-solvent block silicone oil. In step 1, the weight ratio of isopropanol to all the materials in the reactor is 5:100, and the weight ratio of chloroplatinic acid
Example Embodiment
[0023] Example two
[0024] A method for synthesizing low-solvent block silicone oil, including the following steps: Step 1. Add low-hydrogen-containing silicone oil and allyl epoxy polyether with a molar ratio of 1:2 to the reaction kettle, wherein the low-hydrogen silicone oil at the end is added The molecular weight is 4000, and the molecular weight of allyl epoxy polyether is 500-2000. Then add a certain amount of isopropanol to the reactor, heat the reactor to 70°C, stir evenly, add a certain amount of chloroplatinic acid, keep the temperature for 4 hours, and then lower the temperature to below 40°C and discharge to obtain the intermediate Step 2: Put the intermediate and diethylenetriamine with a molar ratio of 1:2 into the reaction kettle, heat the reaction at 80°C for 4 hours, and cool to below 40°C to obtain low-solvent block silicone oil. In step 1, the weight ratio of isopropanol to all the materials in the reactor is 5:100, and the weight ratio of chloroplatinic acid t
Example Embodiment
[0025] Example three
[0026] A finishing agent for fabric hand feeling. Add AEO-3 emulsifier to low-solvent block silicone oil, emulsify according to the ratio of oil to emulsion of 3:1, add 1% glacial acetic acid to the emulsion to form a transparent or milky white uniformly dispersed emulsion, that is, fabric handle finishing agent .
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