A kind of perfluoroalkyl polyacrylate waterproofing agent, preparation method and application

A technology of perfluoroalkyl polyacrylate and perfluoroalkyl acrylate, which can be used in textiles and papermaking, fiber treatment, and liquid-repellent fibers, etc. The chain segments are easy to reorient, dump, and the matrix structure is exposed, etc., to achieve excellent waterproof effect, superior liquid repellency, and stable surface conformation
CN105924573BActive Publication Date: 2017-11-03SUZHOU UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SUZHOU UNIV
Publication Date
2017-11-03

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Abstract

The invention discloses a perfluoroalkyl polyacrylate waterproofing agent, a preparation method and an application. The active ingredient of the waterproofing agent is sulfur-containing long heterochain perfluoroalkyl acrylate copolymer, and sulfur-containing long heterochain perfluoroalkyl acrylate, butyl acrylate, methyl methacrylate and hydroxyethyl methacrylate Composition of mixed monomers, under the emulsification of non-ionic surfactants and anionic surfactants, it is obtained by initiating emulsion polymerization with an initiator. Applying this finishing agent to cotton fabric finishing can provide very excellent waterproof function. Due to the crystallinity of sulfur-containing long heterochain perfluoroalkyl groups, there is no surface reconstruction phenomenon when the acrylate copolymer contacts liquid, and the waterproof function is excellent. Moreover, long heterochain perfluoroalkyl groups contain carbon-sulfur heterobonds, are easy to degrade, and have no cumulative toxicity, so they are not banned fluorine-containing chemicals. At the same time, the waterproofing agent provided by the invention is prepared by traditional emulsion copolymerization, has mild reaction conditions, low equipment requirements, simple process, easy control, and is suitable for industrial production.
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Description

technical field

[0001] The invention relates to a perfluoroalkyl polyacrylate waterproofing agent, a preparation method and its application, in particular to a sulfur-containing long heterochain perfluoroalkyl polyacrylate emulsion and a preparation method thereof, which are applied to fabric waterproofing Finishing belongs to the field of fine chemicals and textile chemical auxiliaries. Background technique

[0002] In the process of research on the waterproof and oil-proof finishing of fabrics, it was found that treating fabrics with fluorine-containing alkyl compounds can endow fabrics with excellent waterproof properties. After decades of research and development, fluorine-containing fabric finishing agents have been commercialized and occupy a large market. The development of these fluorine-containing fabric finishing agents has greatly enriched the research field of organic fluorine materials and has become an important branch. It has received great attention from res...

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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