Core-shell type short-chain fluorine-containing acrylate emulsion and preparation method thereof

A technology of acrylate and butyl acrylate, applied in the direction of plant fiber, coating, fiber treatment, etc., can solve the problems of water and oil repellency of polymer, water and oil repellency, etc., to improve water and oil repellency. Good water and oil repellency effect, cost reduction effect
CN105440201AInactive Publication Date: 2016-03-30NANJING UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NANJING UNIV OF SCI & TECH
Publication Date
2016-03-30
Estimated Expiration
Not applicable · inactive patent

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Abstract

The present invention discloses core-shell short-chain fluorine-containing acrylate emulsion and a preparation method thereof. A series of core-shell short-chain fluorine-containing acrylate emulsion are synthesized from methyl methacrylate (MMA) and butyl acrylate (BA) copolymer as a core and a short fluorocarbon chain 2-(perfluorohexyl) ethyl methacrylate (FMA6) and non-fluoro alkyl methacrylate copolymer as a shell by a multi-step emulsion polymerization method. The core-shell short-chain fluorine-containing acrylate emulsion solves the environmental problem caused by a C8 fluorine-containing monomer as an essential functional monomer used in a main three-control finishing agent, and meanwhile makes up the defect of shortage of product water-repellent and oil-repellent effects when an environmentally friendly C6 fluorine-containing monomer is used as an essential functional monomer. The product has a core-shell structure, the shell layer is rich in a fluorine-containing acrylate component, the amount of the fluorine monomer in the emulsion can be greatly reduced, cost is reduced, water contact angle and oil contact angle of a product latex film are large, and the core-shell short-chain fluorine-containing acrylate emulsion used in textile finishing exhibits excellent water and oil repellency.
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Description

technical field

[0001] The invention belongs to the technical field of polymer chemistry, and in particular relates to a preparation method of a core-shell type short-chain fluorine-containing acrylate emulsion, which can be used in the fields of fabric finishing, water-based paint, solid surface modification and the like. Background technique

[0002] Due to the unique properties of fluorine atoms, fluorine-containing polymers have excellent low surface properties. Compared with aliphatic hydrocarbons and silicone-based water repellents, fluorine-containing finishing agents can not only obtain excellent waterproof, oil-proof, In addition to anti-fouling properties, it can also maintain a good soft feel and excellent air permeability and moisture permeability of the fabric.

[0003] Long carbon chain perfluoroalkyl compounds (C8 for short) with greater than or equal to 8 carbons have always been the mainstream of "three-proof" finishing agents for organic fluorine series fab...

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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