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Sugar-based modified polysiloxane silicone softener and preparation method thereof

A silicone softener, polysiloxane technology, applied in the direction of plant fibers, etc., can solve the problems of decreased smoothness and softening effect of fabrics, affecting the softening effect and washability, affecting the adsorption of silicone chain segments, etc., to achieve wide storage capacity. Operation temperature range and application temperature range, rapid and complete biodegradation, and the effect of easy industrial production

Active Publication Date: 2016-05-04
SHANGHAI FINE CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Polysiloxane chains and polyoxyethylene segments coexist in the macromolecular main chain of block polyether amino-modified silicone oil. Although this molecular structure effectively improves the hydrophilicity of silicone softeners, due to the poly The mass fraction of the dimethylsiloxane segment in the entire macromolecule decreases, and the polyether block splits the adsorption continuity of the polysiloxane segment on the surface of the fabric, resulting in a decrease in the smoothness and softness of the fabric.
When the side-chain polyether-modified amino silicone oil is in aqueous solution, due to the hydrophobic interaction, the hydrophilic polyether segment may wrap the hydrophobic polysiloxane segment, affecting the silicone segment on the fabric fiber. Adsorption, affecting softness and washability

Method used

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  • Sugar-based modified polysiloxane silicone softener and preparation method thereof
  • Sugar-based modified polysiloxane silicone softener and preparation method thereof
  • Sugar-based modified polysiloxane silicone softener and preparation method thereof

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preparation example Construction

[0023] The preparation method of the microemulsion type sugar-based modified polysiloxane softening agent of the present invention comprises the following steps:

[0024] (1) Preparation of epoxy-modified polysiloxane intermediate

[0025] In a four-necked flask equipped with a mechanical stirring device and a condensation reflux device, add a certain amount of water and a certain amount of nonionic surfactant composition, stir at room temperature to form a transparent aqueous solution; add an alkaline catalyst and stir to become a transparent aqueous solution; at 400 At a stirring rate of ~600rpm / min, add a certain amount of γ-glycidyl etheroxypropylmethyldialkoxysilane and octamethylcyclotetrasiloxane (D4) into the four-necked bottle successively; Stirring at a stirring rate of 800rpm / min for 10-60min to obtain a translucent emulsion system.

[0026] The above emulsion system is heated up to 60-100° C., reacted at a stirring rate of 600-800 rpm / min for 2-8 hours, and then c...

Embodiment 1

[0047] (1) Preparation of epoxy-modified polysiloxane intermediate

[0048]In a 2000ml four-neck flask equipped with a mechanical stirring device and a condensation reflux device, add a composition of 198g water and 99g APG (wherein APG121439.5g, APG161813.2g, APGi824.8g, APG0621.5g), and stir at room temperature to form a transparent aqueous solution; Add 24.75g of catalyst KOH and stir to form a transparent aqueous solution; at a stirring rate of 600rpm / min, add 49.7g of γ-glycidyl etheroxypropylmethyl diethoxysilicon and 98.0g of octamethylcyclotetrasiloxane D4198.0g successively Add it into a four-neck flask; stir for 60 min at a stirring rate of 800 rpm / min to obtain an emulsion system.

[0049] The above emulsion system was heated up to 95° C., reacted at a stirring rate of 800 rpm / min for 8 hours, and then cooled to room temperature to obtain an alkoxy-modified polysiloxane intermediate emulsion.

[0050] (2) Preparation of sugar-based modified polysiloxane softener

...

Embodiment 2

[0061] (1) Preparation of epoxy-modified polysiloxane intermediate

[0062] In a 3000ml four-neck flask equipped with a mechanical stirring device and a condensing reflux device, add a composition of 1191.3g water and 45.1g APG (wherein APG0812.2g, APG121432.9g), and stir at room temperature to form a transparent aqueous solution; add catalyst C 2 h 5 OK7.7g was stirred to become a transparent aqueous solution; at a stirring rate of 600rpm / min, 5.0g of γ-glycidyl etheroxypropylmethyl dimethoxysilane and 6.6g of octamethylcyclotetrasiloxane D4296 were successively added to four In a mouth bottle; Stir at a stirring rate of 800rpm / min for 20min to obtain a translucent emulsion system.

[0063] The above emulsion system was heated up to 90° C., reacted at a stirring rate of 800 rpm / min for 4 hours, and then cooled to room temperature to obtain a translucent emulsion of an alkoxy-modified polysiloxane intermediate.

[0064] (2) Preparation of sugar-based modified polysiloxane so...

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Abstract

The invention discloses a glycosyl modified polysiloxane organic silicone softener and a preparation method thereof. The preparation method comprises the steps of enabling gamma-glycidoxy propyl methyl dialkoxy silane and octamethyl cyclotetrasiloxane with the mole rate of 1: (2.5-50) to react in an alkyl polyglucoside surfactant and basic catalyst water solution at the temperature of 60-100 DEG C to obtain a semitransparent alkoxy modified polysiloxane intermediate emulsion; regulating the pH value of the alkoxy modified polysiloxane intermediate emulsion in the step (1) to 0.5-6, adding N, N-dimethyl-N'-glycosylacyl-1, 3-propane diamine, and enabling N, N-dimethyl-N'-glycosylacyl-1, 3-propane diamine and gamma-glycidoxy propyl methyl dialkoxy silane in the step (1) to react at the temperature of 70-95 DEG C to obtain a semitransparent glycosyl modified polysiloxane emulsion, wherein the mole ratio of N, N-dimethyl-N'-glycosylacyl-1, 3-propane diamine to gamma-glycidoxy propyl methyl dialkoxy silane is (0.3-0.8):1. The softener disclosed by the invention has the super softness of amino silicon oil and the solidifying and finishing effects of epoxy modified silicon oil, and can be used for effectively improving the washing fastness and the smoothness.

Description

technical field [0001] The invention relates to a sugar-based modified polysiloxane organosilicon fabric softener and a preparation method thereof. Background technique: [0002] Modified silicone softeners are called third-generation silicone softeners. This kind of products are made by various active groups such as amino, polyether, epoxy, hydroxyl, etc. A block copolymer of polysiloxane and other modified groups is formed on the chain, which can greatly improve the washing resistance, shrink resistance, hydrophilicity, etc. of the fabric, and rely on different groups to endow the fabric with different styles. At present, people's research on silicone softeners is mainly concentrated on the third-generation silicone products. Among them, the amino silicone oil product is one of the fastest-growing products in the silicone softener, which can endow the fabric with unique properties such as smoothness, softness, fullness, crispness, and drapability, and the fabric after fin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G77/388C08G77/14C08G77/06D06M15/65D06M101/06
Inventor 张威杨春光董万田王丰收
Owner SHANGHAI FINE CHEM CO LTD
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