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Water and oil proofing agent and preparation method thereof

A technology of water and oil repellent and cosolvent, used in textiles, papermaking, fiber processing, etc., which can solve the problems of high price, easy agglomeration, and difficulty in obtaining long-term stable emulsions.

Active Publication Date: 2015-04-29
京准化工技术(上海)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] As we all know, the mainstream products of waterproof and oil-repellent agents in the textile field are fluorine-containing acrylate emulsion polymers, but these products have the following defects: on the one hand, they are expensive; on the other hand, the mainstream waterproof and oil-repellent agents in the domestic market still for C 8 Type water and oil repellent (that is, the number of carbon atoms in the fluoroalkyl group in the chain segment is 8 ), which are well known to those skilled in the art C 8 Although the type water and oil repellent has excellent waterproof and oil repellent effect, it also has the defects of strong bioaccumulation and refractory degradation.
However, due to the relatively large surface energy of silica particles, it is easy to agglomerate in the emulsion, and it is difficult to obtain a long-term stable emulsion. Therefore, the surface of silica particles is usually modified before use, and the steps are cumbersome, which is not conducive to the industrialization of products.

Method used

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  • Water and oil proofing agent and preparation method thereof
  • Water and oil proofing agent and preparation method thereof
  • Water and oil proofing agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] (1) exist 500ml Add the following components to the plastic bottle: CH 2 =C(CH 3 )-C(=O)-O-CH 2 CH 2 -C 6 F 13 40g , lauryl acrylate 55g 、 N- Methylolacrylamide 5g 、 58 # paraffin 20g , nonionic emulsifier C 12 H 25 O(CH 2 CH 2 O) 20 H 6g , cationic emulsifier C 18 H 37 N + (CH 3 ) 3 Cl - 4g , Tripropylene Glycol 20g ,Deionized water 400g ; put the above reaction system in 60 ° C Stirring and heating in water bath 20 Minutes later, emulsify in a high-pressure homogenizer 10 Minutes, the oil-in-water type metastable emulsion is obtained, the particle size is 150nm 。

[0037] will step ( 1 ) The resulting oil-in-water metastable emulsion is poured into a glass reactor pre-installed with a mechanical stirrer, a thermometer, a reflux condenser and nitrogen gas, and the initiator azobisisobutylamidine hydrochloride is added to the reaction system ...

Embodiment 2

[0042] (1) exist 500ml Add the following components to a plastic beaker: CH 2 =C(H)-C(=O)-O-CH 2 CH 2 -C 6 F 13 40g , cetyl acrylate 55g 、 N- Methylolacrylamide 5g 、 70 # paraffin 40g , nonionic emulsifier C 12 H 25 O(CH 2 CH 2 O) 20 H 6g , cationic emulsifier C 18 H 37 N + (CH 3 ) 3 Cl - 4g , Tripropylene Glycol 20g ,Deionized water 400g ; put the above reaction system in 70 ° C Stirring and heating in water bath 20 Minutes later, emulsify in a high-pressure homogenizer 10 Minutes, the oil-in-water type metastable emulsion is obtained, the particle size is 250nm 。

[0043] （ 2 ) will step ( 1 ) The resulting oil-in-water metastable emulsion is poured into a glass reactor pre-installed with a mechanical stirrer, a thermometer, a reflux condenser and nitrogen gas, and the initiator azobisisobutylamidine hydrochloride is added to the reaction system 0....

Embodiment 3

[0048] (1) exist 500ml Add the following components to a plastic beaker: CH 2 =C(CH 3 )-C(=O)-O-CH 2 CH 2 -C 4 F 9 40g , cetyl acrylate 55g 、 N- Methylolacrylamide 5g , microcrystalline wax 20g , nonionic emulsifier C 12 H 25 O(CH 2 CH 2 O) 20 H 6g , cationic emulsifier C 18 H 37 N + (CH 3 ) 3 Cl - 4g , Tripropylene Glycol 20g ,Deionized water 400g ; put the above reaction system in 60 ° C Stirring and heating in water bath 20 Minutes later, emulsify in a high-pressure homogenizer 10 Minutes, the oil-in-water type metastable emulsion is obtained, the particle size is 250nm 。

[0049] （ 2 ) will step ( 1 ) The resulting oil-in-water metastable emulsion is poured into a glass reactor pre-installed with a mechanical stirrer, a thermometer, a reflux condenser and nitrogen gas, and the initiator azobisisobutylamidine hydrochloride is added to the reaction system 0.5g and dodecyl mercaptan 0...

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Abstract

The invention relates to a water and oil proofing agent and a preparation method thereof. The water and oil proofing agent comprises a fluoro-containing polymer component, a wax component, an emulsifier, a cosolvent and deionized water in a mass ratio of 1:0.1-0.4:0.05-0.15:0.1-0.3:2-4, wherein the fluoro-containing polymer component is copolymerized from a fluoro-containing monomer, an acrylate monomer and a reactive monomer with crosslinking feature in a mass ratio of 20-40:45-75:5-15; and the wax component is paraffin or microcrystalline wax or a mixture of paraffin and microcrystalline having a melting point of 50-70 DEG C. The water and oil proofing agent can be used for greatly improving the water and oil proofing performance of fabrics, and is more environment-friendly and lower in price in comparison with C8 products in the prior art especially when the fluoro-containing polymer component is a short-chain fluoroalkyl monomer having the number of carbon atoms of 1-6, and is capable of achieving the water and oil proofing performance of the C8 products.

Description

technical field [0001] The invention belongs to the field of textile auxiliaries, and in particular relates to a waterproof and oil-repellent agent and a preparation method thereof. Background technique [0002] As we all know, the mainstream products of waterproof and oil-repellent agents in the textile field are fluorine-containing acrylate emulsion polymers, but these products have the following defects: on the one hand, they are expensive; on the other hand, the mainstream waterproof and oil-repellent agents in the domestic market still C 8 Type water and oil repellent (that is, the number of carbon atoms in the fluoroalkyl group in the chain segment is 8), which is well known to those skilled in the art. 8 Although the type water and oil repellent has an excellent water and oil repellent effect, it also has the defects of strong bioaccumulation and refractory degradation. In recent years, the European Union and the US Environmental Protection Agency have promulg...

Claims

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Application Information

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IPC IPC(8): D06M15/29
Inventor 王俊许海燕许飞许宁陈修宁
Owner 京准化工技术(上海)有限公司
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