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A kind of fluorine-terminated epoxy polymer and its preparation method and its application in the preparation of hydrophobic surface

An epoxy polymer, end-capping technology, applied in textiles, papermaking, fiber treatment, etc., can solve the problems of poor durability, easy to fall off, short length of alkyl chain segment, etc., achieve excellent hydrophobicity, good durability, and good stability The effect of sex and durability

Active Publication Date: 2017-06-09
临沂嘉莱乐装饰材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, although materials with hydrophobic properties can be obtained by modifying the surface of materials with small-molecule fluorine-containing compounds, the hydrophobic properties of materials modified by small-molecule fluorine-containing compounds are not ideal, mainly because small-molecule fluorine-containing compounds The length of the alkyl chain segment is short, it cannot form an effective dense and compact adhesion layer and it is easy to fall off, resulting in poor durability

Method used

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  • A kind of fluorine-terminated epoxy polymer and its preparation method and its application in the preparation of hydrophobic surface
  • A kind of fluorine-terminated epoxy polymer and its preparation method and its application in the preparation of hydrophobic surface
  • A kind of fluorine-terminated epoxy polymer and its preparation method and its application in the preparation of hydrophobic surface

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A fluorine-terminated epoxy polymer, its parameters are as follows structural formula as figure 1 As shown, where 3x+2y+z= 3; x=1; y= 0; z=0; m=10.

[0037] The preparation method comprises the following steps:

[0038] 1) Preparation of active ATRP reactive initiator monomer: Mix trifluoroethyl methacrylate and hydrobromic acid evenly, and the reaction time is 12 hours at 20°C. After the reaction, neutralize with saturated sodium bicarbonate solution to neutralize. Column chromatographic separation, the eluent used is obtained by mixing ethyl acetate and petroleum ether according to the volume ratio of 1:5, and then rotary evaporated and dried to obtain a light yellow ATRP reactive initiator monomer; the fluorine-containing acrylic acid monomer The molar ratio of body and hydrobromic acid is 1:1.5.

[0039] 2) Preparation of fluorine-terminated epoxy polymer: the active ATRP reactive initiator monomer and GMA prepared in the first step were dissolved in anisole, and ...

Embodiment 2

[0042] A fluorine-terminated epoxy polymer with a structural formula such as figure 1 As shown, where 3x+2y+z= 5; x=1; y= 1; z=0; m=10.

[0043] The preparation method comprises the following steps:

[0044] 1) Preparation of active ATRP reactive initiator monomer: Mix pentafluoropropyl methacrylate and hydrobromic acid evenly, and the reaction time is 20 hours at 20°C. After the reaction is completed, neutralize it with saturated sodium bicarbonate solution to neutralize it. Column chromatographic separation, the eluent used is obtained by mixing ethyl acetate and petroleum ether according to the volume ratio of 1:5, then rotary evaporation and drying to obtain a light yellow active ATRP reactive initiator monomer; the fluorine-containing acrylic acid The molar ratio of monomer and hydrobromic acid is 1:2.

[0045]2) Preparation of fluorine-terminated epoxy polymer: the active ATRP reactive initiator monomer and GMA prepared in the first step were dissolved in anisole, and ...

Embodiment 3

[0048] A fluorine-terminated epoxy polymer with a structural formula such as figure 1 As shown, where 3x+2y+z= 6; x=1; y= 1; z=1; m=10.

[0049] The preparation method comprises the following steps:

[0050] 1) Preparation of active ATRP reactive initiator monomer: Mix hexafluorobutyl methacrylate and hydrobromic acid evenly, and the reaction time is 30 hours at 20°C. After the reaction is completed, neutralize it with saturated sodium bicarbonate solution to neutralize it. Column chromatographic separation, the eluent used is obtained by mixing ethyl acetate and petroleum ether according to the volume ratio of 1:5, then rotary evaporation and drying to obtain a light yellow active ATRP reactive initiator monomer; the fluorine-containing acrylic acid The molar ratio of monomer and hydrobromic acid is 1:2.5.

[0051] 2) Preparation of fluorine-terminated epoxy polymer: the active ATRP reactive initiator monomer and GMA prepared in the first step were dissolved in anisole, and...

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Abstract

The invention discloses a fluoro-terminated epoxy polymer and a preparing method thereof. The preparing method of the fluoro-terminated epoxy polymer comprises the steps that a fluoroacrylate monomer and hydrobromic acid react, and neutralization, separation, elution, rotary evaporation and drying are conducted, so that an active ATRP reactivity inimer is obtained; the prepared active ATRP reactivity inimer and glycidyl methacrylate are dissolved in a solvent, and a catalyst and a ligand are added for reaction, so that the fluoro-terminated epoxy polymer is obtained. The invention further discloses the application of the fluoro-terminated epoxy polymer in preparing a hydrophobic surface. According to the fluoro-terminated epoxy polymer, a fluoric group with low surface energy is introduced through simple and controllable chemical crosslinking, the durability of a hydrophobic material is improved, and the hydrophobic material is excellent in hydrophobic performance and high in durability. The hydrophobic surface of the prepared fluoro-terminated epoxy polymer is high in stability and durability.

Description

technical field [0001] The invention belongs to the field of functional polymer materials, and in particular relates to a fluorine-terminated epoxy polymer, a preparation method and its application in preparing hydrophobic surfaces. Background technique [0002] Wettability is one of the important characteristics of material surface. Studies have shown that the chemical composition and microstructure of the material surface play a decisive role in its wettability. Generally speaking, the wettability of the material surface is measured by the contact angle. According to the size of the contact angle, the surface of the material can be divided into four categories: (1) The contact angle is less than 10° for super hydrophilic (or super lipophilic) Surface; (2) less than 90° is hydrophilic (or lipophilic) surface; (3) greater than 90° is hydrophobic (or oleophobic) surface; (4) greater than 150° is superhydrophobic (or superoleophobic) )surface. [0003] Materials with hydroph...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F220/22C08F220/32D06M15/277
Inventor 李因文郑秀文
Owner 临沂嘉莱乐装饰材料有限公司