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A kind of imidazole group modified silicone oil and its preparation and application
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A technology for modifying silicon and imidazole groups is applied in the preparation of imidazole-based modified silicone oil and the application of fabric finishing. Full-feel, wide-ranging effects
Active Publication Date: 2015-09-30
JIANGMEN PAINT FACTORY
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[0015] In order to overcome the disadvantages of complex and cumbersome processes for preparing secondary amino-type modified silicone oils in the prior art, unavailable raw materials, and difficult industrial promotion and application, the purpose of the present invention is to provide an imidazole-based modified silicone oil and its preparation method. Among them, the imidazole group in the side chain of the modified silicone oil contains ring secondary amino groups, and the obtained modified silicone oil can be used for fabric softening and finishing
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Embodiment 1
[0034] 1. Preparation of imidazole-β-ethyl methyl silicone oil
[0035] 1000ml four-neck flask, equipped with mechanical stirring, thermometer, constant pressure addition funnel, water separator and reflux condenser.
[0036] Dissolve 125 grams of carboxypropyl silicone oil in 250 grams of toluene to prepare a carboxypropyl silicone oil solution, and add it to a constant-pressure addition funnel. Then, 51.5 grams of ethylenediamine and 100 grams of toluene were added to the reactor in sequence. After the reaction mixture was heated to 110°C, the carboxypropyl silicone oil solution was slowly added dropwise, and the addition was completed in 4 hours. Water reacted for 10 hours.
[0037] 6.5 grams of zinc chloride was added to the above reaction solution, and the temperature was continued at 112° C. for reflux and water separation for 16 hours. After the reaction ended, the reaction was stopped, and 25 grams of water were separated out. Cool the reaction solution, transfer it...
Embodiment 2
[0047] 1 Preparation of imidazolium decyl methyl silicone oil
[0048] 1000ml four-neck flask, equipped with mechanical stirring, thermometer, constant pressure addition funnel, water separator and reflux condenser.
[0049] Dissolve 180 grams of carboxyundecyl silicone oil in 360 grams of toluene to prepare a carboxyl silicone oil solution, and add it to a constant pressure addition funnel. Then add 55.6 grams of ethylenediamine and 110 grams of toluene to the reactor in sequence. After raising the temperature of the reaction mixture to 110°C, slowly add the carboxyl silicone oil solution dropwise, and finish the dropwise addition in 3 hours. 12 hours.
[0050] 5.4 grams of zinc chloride was added to the above reaction solution, and the temperature was continued at 110° C. for reflux and water separation for 16 hours. After the reaction ended, the reaction was stopped, and 27 grams of water were separated out. Cool the reaction solution, transfer it to a 1000ml separatory ...
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Abstract
The invention discloses an imidazolyl group modified silicone oil, and a preparation method and an application thereof. The preparation method comprises a step of condensing raw materials comprising carboxyl silicone oil and ethylene diamine, and a step of carrying out hydration condensation intramolecular cyclization under the catalysis of a catalyst to obtain the imidazolyl group modified silicone oil. The imidazolyl group modified silicone oil prepared in the invention can provide a very good soft and chubby hand feeling when applied in textile finishing after emulsification. The synthesis method for preparing the imidazolyl group modified silicone oil has the advantages of simplicity, low apparatus requirement, realization of the adopted raw materials being industrial raw materials, and suitableness for the industrialized amplification production.
Description
technical field [0001] The invention relates to the application field of organosilicon material synthesis and fabric finishing, in particular to an imidazole-based modified silicone oil, the preparation of the imidazole-based modified silicone oil and the application of fabric finishing. Using carboxyl silicone oil and ethylenediamine as raw materials, first direct condensation, and then dehydration condensation intramolecular cyclization under the catalysis of a catalyst, to obtain imidazole-based modified silicone oil. The side groups of the prepared imidazole-based modified silicone oil contain ring secondary amine groups, and after emulsification, it can provide a very good soft and plump feel when applied to fabric finishing. Background technique [0002] Amino silicone oil is an amino-modified polyorganosiloxane, which is a representative silicone softener variety on the market. Due to the strong polarity and high reactivity of the amino group on the side group of ami...
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the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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