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Research on the Synthesis, Modification and Application of Amino Silicone

Author: ShiChenZuo
Tutor: LiQing
School: Beijing Institute of Clothing Technology
Course: Textile Chemistry and Dyeing and Finishing Engineering
Keywords: Amino silicone Linear body Polyether modified Fabric softener Block copolymers
CLC: TQ264.1
Type: Master's thesis
Year: 2010
Downloads: 362
Quote: 1
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Abstract


Amino silicone oil, with soft, hydrophobic, anti-foaming, lubricants and many other excellent performance, coupled with the synthesis of non-toxic and pollution-free, the cost is not high, and has been widely used in many areas of the textile industry, one of the most important use is as all kinds of fiber, fabric softener, known as the king of the softener. Amino silicone products ubiquitous and easy to turn yellow, defect the fabric hydrophilic poor finishing and amino distribution uneven, its application is limited, at the same time domestic amino silicone emulsion products with foreign product performance are still some gaps. In this paper, α, ω-dihydroxy-polydimethylsiloxane (WS-62M), N-beta-Ammonia ethyl-γ-aminopropyl methyl dimethoxy silane (DL-602) as the raw materials linear amino silicone oil, and its performance was studied, and then separately with a single terminal epoxy the polyether (X-09) and polyethylene glycol (PEG), hexamethyl diisocyanate (HDI) and dimethylolpropionic acid (DMPA) its modification, prepared polyether graft modified amino silicone and polyether block modified amino silicone oil, discussed in detail the synthesis conditions of the copolymer, the ratio of raw materials; IR, NMR, condensate gel permeation chromatography, thermogravimetry, transmission electron microscopy (TEM), the sweep surface electron microscopy and atomic force microscope its structure characterization. The results show that: (1) linear amino silicone optimum synthesis conditions: n (62M): n (DL-602) = versa catalyst KOH concentration and amount were 0.05g/ml and 0.06%, 90 ° C under the reaction 5h. The linear amino silicone emulsion stability of the desired effect, the application performance with commercially available amino silicone softener quite effective; (2) polyether the graft modified amino silicone oil modified conditions: n (the X-O9): n (DL-602) = 3:1, the coupling agent used in an amount of 10% isopropyl alcohol as the solvent, 80 ℃ reaction 4h. The polyether graft modified amino silicone emulsion stability, finished fabrics high whiteness, better hydrophilic; (3) polyether block modified amino silicone process: n (NCO): n (OH) = 1:3, PEG400 content of 55%, and the amino group content is 3%, and a carboxyl group content of 0.5%. Modified polyether block the amino silicone emulsion stability, surface tension, and the finishing of the fabric whiteness, the preferred hydrophilic, and obtaining higher molecular weight as measured by GPC. Confirmed by IR and 1H-NMR basic amino silicone and polyether blocks of the structure of the modified amino silicone TEM photos show polyether graft modified amino silicone oil and a polyether block-modified amino silicone emulsion particles uniformly dispersed was ellipsoidal and TG both good thermal stability. Above three copolymer emulsion of small particle size and narrow distribution, SEM and AFM photographs to display them in the fabric surface to form relatively smooth films, can impart good flexibility smooth fabric.

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CLC: > Industrial Technology > Chemical Industry > Basic Organic Chemistry Industry > The production of organic compounds of elements > The first IV group elements, organic compounds , > Silicon organic compounds
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