Fluorine and silicon containing water and oil repellent finishing agent, preparation and application thereof

A finishing agent, fluorine-containing alkyl technology, used in fiber processing, textiles and papermaking, etc., can solve problems such as fluorine-containing carbon chain length

Inactive Publication Date: 2011-06-15
BEIJING INSTITUTE OF CLOTHING TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In WO9845526A, a fluorine-containing and silicon water- and oil-repellent fabric treatment agent was synthesized. Although good results have been achi

Method used

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  • Fluorine and silicon containing water and oil repellent finishing agent, preparation and application thereof
  • Fluorine and silicon containing water and oil repellent finishing agent, preparation and application thereof
  • Fluorine and silicon containing water and oil repellent finishing agent, preparation and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Embodiment 1

[0034] Install electric stirring, constant pressure funnel, and condenser on the three-necked flask, add 20ml of ethanol to the three-necked flask, and dissolve 0.09g of azobisisobutyronitrile (AIBN) in the remaining 20ml of ethanol and mix it with 13.14g of hexafluorobutyl acrylate and 3.05g of Vinyltriethoxysilane is miscible and loaded into a constant pressure funnel. Start heating, and turn on the electric stirring and condensed water, and start to add the raw material mixture dropwise after the ethanol forms a reflux. Observe the state of the reaction solution at any time, and after 8 hours of constant temperature reaction at the boiling point temperature, cool to room temperature and discharge. According to the dry matter method, the product was dried in an oven to constant weight to obtain product A. Measure its infrared spectrum and compare it with the raw material spectrum. And the glass transition temperature was tested by DSC to further prove the product A. see r...

Embodiment 2

[0037] Example 2: Refer to Example 1 for the operation steps, solvents, initiators and their dosages. The raw materials were replaced with 8.21 g of hexafluorobutyl acrylate and 9.52 g of vinyltriethoxysilane. The results are shown in Table 1.

Embodiment 3

[0039] Refer to Example 1 for the operation steps, solvents, initiators and their dosages. The raw materials were replaced with 13.14 g of hexafluorobutyl acrylate and 1.52 g of vinyltriethoxysilane. The results are shown in Table 1.

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PUM

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Abstract

The invention discloses a fluorine and silicon containing water and oil repellent finishing agent which is synthesized from fluorine containing acrylic ester formed by fluorine containing alkyl with a shorter carbon chain and double-bond containing organic siloxane as basic structural units. On one hand, the advantages of a fluorine containing water and oil repellent finishing agent is retained; and on the other hand, the fluorine containing acrylic ester formed by the fluorine containing alkyl with a shorter carbon chain is selected so that perfluoro caprylic acid (PFOA) and salt thereof toxic to the environment are prevented from being generated in the degradation process of the fluorine and silicon containing water and oil repellent finishing agent. By combining the advantages of the silicon and the fluorine, the fluorine and silicon containing water and oil repellent finishing agent of the invention becomes a fabric finishing agent which has excellent performance and is environmentally friendly.

Description

technical field [0001] The invention relates to a water-repellent and oil-repellent finishing agent containing fluorine and silicon, a preparation method and application thereof. technical background [0002] Apply a finishing agent with a special molecular structure on the surface of the fabric, change the composition of the fiber surface layer, and combine with the fiber in a physical, chemical or physicochemical way, so that the fabric is no longer damaged by water or common oils (such as edible oil, oil, etc.), this finishing process is called water-repellent or oil-repellent finishing, and the finishing agents used are called water-repellent agents or oil-repellent agents, respectively. At present, the most excellent water-repellent and oil-repellent finishing agents are fluorine-containing organic polymers. Due to the unique properties of fluorine atoms, organic fluoropolymers have chemical properties unmatched by hydrocarbon polymers, which are summarized as "three h...

Claims

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Application Information

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IPC IPC(8): D06M15/356D06M15/277C08F230/08C08F220/22
Inventor 刘振东邱敏李宝玉王晓宁
Owner BEIJING INSTITUTE OF CLOTHING TECHNOLOGY
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