Method for synthesizing hydrophile amino silicon oil

A synthesis method and technology of hydrophilic silicone oil, applied in textiles, papermaking, fiber processing and other directions, can solve the problems of poor hand feel, loss of hydrophilicity, poor washability and durability, and achieve a simple preparation process, reduce yellowing, The effect of improving washability

Inactive Publication Date: 2009-08-12
深圳天鼎新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the cross-linking of the amino group, the finishing effect of amino silicone oil is good, but its obvious disadvantage is the lack of hydrophilicity. After finishing natural fiber fabrics, although the softness is significantly improved, the hydrophilicity is almost completely lost. The natural and comfortable style of the fabric
[0003] In order to change the above-mentioned shortcomings of amino silicone oil, there is hydrophilic silicone oil, the most typical is allyl polyether and hydr

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Firstly, the hydrophilic silicone oil and DMC are mixed, wherein the hydrophilic silicone oil accounts for 70%, and the DMC accounts for 30%. In the hydrophilic silicone oil, the side chain EO polyether accounts for 63%, and the siloxane chain accounts for 35%. Then add the silane coupling agent N-(β-aminoethyl)-γ-aminopropylmethyldimethoxysilane, wherein the quality of the coupling agent is 3% of the total amount of the hydrophilic silicone oil and DMC. Then add water as a solvent, wherein the quality of water added is 100% of the total amount of the hydrophilic silicone oil and DMC. When the temperature was raised to 80° C., tetramethylammonium hydroxide was added as a catalyst, wherein the catalyst mass was 1.2% of the total amount of materials of hydrophilic silicone oil and DMC. Close the reaction system, continue to heat up to 110-115°C, and cool down to 50-70°C after the first predetermined time of reaction for 10 hours.

[0024] Then add chlorohydrin to the rea...

Embodiment 2

[0027] First mix the hydrophilic silicone oil with the linear hydroxyl-terminated silicone oil with a molecular weight of 20-80cs, wherein the hydrophilic silicone oil accounts for 70%, and the linear hydroxyl-terminated silicone oil accounts for 30%; the side chain EO and PO in the hydrophilic silicone oil are 50% each The copolymer polyether accounts for 70%, and the siloxane chain accounts for 30%. Add 2% of the silane coupling agent N-cyclohexyl-y-aminopropylmethyldimethoxysilane accounting for the total amount of the mixture; add 50% of the total amount of the mixture as the reaction medium, and heat up to 80°C When, by adding concentration, be 30% KOH aqueous solution as catalyst, and its quality is 1.2% of material total amount. Close the reaction system, continue to heat up to 115-120°C, and cool down to 50-70°C after the first scheduled reaction time of 8 hours.

[0028] Then add chloroethanol to the reactant at a ratio of 1.3:1 to the molar ratio of the coupling age...

Embodiment 3

[0031] Mix 70% of hydrophilic silicone oil with 30% of D4, wherein the side chain EO polyether in the hydrophilic silicone oil accounts for 68.5%, and the siloxane chain containing 1.5% epoxy group accounts for 30%. Then add the silane coupling agent γ-diethylenetriaminopropylmethyldimethoxysilane, the mass of which is 2.5% of the total mass of the mixture. Water is added as a reaction medium, and its mass is 50% of the total amount of the materials of the hydrophilic silicone oil and the linear hydroxyl-terminated silicone oil. When the temperature was raised to 80° C., tetramethylammonium hydroxide was added as a catalyst, and the mass of the catalyst added was 1.2% of the total amount of materials. Then close the reaction system, continue to heat up to 115-120°C, and cool down to 50-70°C after the first scheduled reaction time of 5 hours.

[0032] Then add chloroethanol to the reactant according to the molar ratio of 1.3:1 to the coupling agent. Under the condition of 60-1...

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Abstract

The invention discloses a synthetic method of hydrophilic amino silicone oil. The method comprises the following steps: mixing hydrophilic silicone oil with siloxane monomers, adding a coupling agent, employing water as a reaction medium, and cooling after heating and closing reaction for first predetermined time in the presence of a catalyst; and then adding ethylene chlorohydrin, cooling after reaction for second predetermined time at high temperature, adjusting pH value of reactants to neutrality to obtain the hydrophilic amino silicone oil. In the method, the ethylene chlorohydrin is added for the reaction during a preparation process of the hydrophilic amino silicone oil, and the ethylene chlorohydrin can graft amino onto hydroxyl to improve hydrophilicity of the amino and wash fastness of the amino-silicone oil. The hydrophilic amino silicone oil overcomes disadvantages of common amino silicone oil and simple polyether hydrophilic amino silicone oil, has good hydrophilicity and feels better.

Description

technical field [0001] The invention relates to a method for synthesizing a softening and finishing agent for textiles, in particular to a method for synthesizing hydrophilic amino silicone oil. Background technique [0002] Ordinary amino silicone oils, such as amino silicone oils synthesized from α-aminoethyl-β-aminopropylmethyldimethoxysilane, are widely used as fabric finishing agents due to their excellent softness. Due to the cross-linking of the amino group, the finishing effect of amino silicone oil is good, but its obvious disadvantage is the lack of hydrophilicity. After finishing natural fiber fabrics, although the softness is significantly improved, the hydrophilicity is almost completely lost. The natural and comfortable style of the fabric. [0003] In order to change the above-mentioned shortcomings of amino silicone oil, there is hydrophilic silicone oil, the most typical is allyl polyether and hydrogen-containing silicone oil, in the presence of platinum ca...

Claims

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Application Information

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IPC IPC(8): C08G77/46D06M15/647D06M15/65
Inventor 张书立邹小芬詹其乐丁之
Owner 深圳天鼎新材料有限公司
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