Sulfur-containing epoxide resin and preparation method thereof

A technology of sulfur epoxy resin and epoxy resin, which is applied in the field of sulfur-containing epoxy resin and its preparation, can solve problems such as difficult large-scale application, shortened product storage period, and easy entanglement of molecular chains, and achieve gel The effect of shortening time, short reaction time and simple preparation process
CN103145646AActive Publication Date: 2013-06-12SUZHOU TAIHU ELECTRIC ADVANCED MATERIAL CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SUZHOU TAIHU ELECTRIC ADVANCED MATERIAL CO LTD
Publication Date
2013-06-12

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Abstract

The invention relates to a sulfur-containing epoxide resin and a preparation method thereof. The sulfur-containing epoxide resin is obtained by reacting a dithiol compound and glycidyl methacrylate in a stirring way at -5-20 DEG C for 4-10 hours. Compared with the traditional sulfur-containing epoxide resin, the sulfur-containing epoxide resin prepared through the method disclosed by the invention is lower in viscosity and higher in storage stability, can be applied to the fields of environment-friendly low-volatilization paint, low-volatilization resin, solvent-free epoxide resin insulating paint, and the like and can be directly applied without being added with an organic solvent or an active diluent; and compared with bisphenol A epoxide resin, the sulfur-containing epoxide resin disclosed by the invention is much lower in viscosity, shortened in gelation time by about 20% during solidification, enhanced in tensile strength and bend strength by about 10% and obviously increased in glass transition temperature and hardly influences the toughness. Besides, the preparation method disclosed by the invention has the advantages of simpleness, low pollution and low cost.
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Description

technical field

[0001] The invention belongs to the technical field of epoxy resin preparation, and in particular relates to a sulfur-containing epoxy resin and a preparation method thereof. Background technique

[0002] The synthesis of traditional sulfur-containing epoxy resins is mainly obtained by (1) ring-opening and ring-closing reactions of mercaptans and epichlorohydrin or (2) reaction of epoxy resins with thiourea. The sulfur-containing epoxy resins prepared by these two methods, because the hydroxyl groups have hydrogen bonds, make the molecular chains of the sulfur-containing epoxy resins easy to entangle, resulting in high product viscosity, and usually need to be diluted with organic solvents during application; in addition, due to the presence of hydroxyl groups , when used in an acid anhydride curing system, it is easy to cause the ring opening of the anhydride to make it unstable, and ultimately lead to a shorter shelf life of the product. Moreover, the trad...

Claims

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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