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A kind of fluorosilicone waterproof and oil-repellent agent and the method utilizing one-pot method to carry out synthesis thereof

A water- and oil-repellent, fluorine-silicon technology, used in antifouling/underwater coatings, biocide-containing paints, coatings, etc., can solve the problems of difficult handling, high cost, and difficult to adhere to the glass surface, and achieve a wide range of application prospects , the effect of low cost and shortened response time

Active Publication Date: 2019-08-27
ZHONGHAO CHENGUANG RES INST OF CHEMICALINDUSTRY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The above-mentioned patent uses environmentally friendly perfluoropolyether compounds as raw materials, but does not introduce silicon-containing "bridge" groups, so it is not easy to adhere to the glass surface; in addition, due to the introduction of multiple amide groups The compound requires quite a lot of steps, and it is difficult to deal with after purification and separation, so the cost is extremely high, which limits its application

Method used

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  • A kind of fluorosilicone waterproof and oil-repellent agent and the method utilizing one-pot method to carry out synthesis thereof
  • A kind of fluorosilicone waterproof and oil-repellent agent and the method utilizing one-pot method to carry out synthesis thereof

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Embodiment 1

[0039]The present embodiment provides a method for synthesizing a fluorosilicone water-repellent and oil-repellent agent by a one-pot method, namely: first add 400g perfluoropolyether (PFPECOF ), then slowly add 11.6g (1.0 equivalent) of allyl alcohol dropwise through the dropping funnel at room temperature, continue to react for 2h after dropping, remove the unreacted low-boiling raw material under reduced pressure, and obtain the perfluoropolyether acid allyl Esters (PFPECOOCH 2 CH=CH 2 ) continue to stay in the four-necked flask for subsequent use. Add 36.4g (1.5 equivalent) trimethoxysilane and 76.2mg (0.1% equivalent) Karstedt catalyst to the above-mentioned four-necked flask equipped with the allyl perfluoropolyetherate, react at 80°C for 12h, and finally distill Remove unreacted low-boiling raw materials and finally obtain 381.6g colorless target product perfluoropolyether acid trimethoxysilyl propyl ester {PFPECOOCH 2 CH 2 CH 2 Si(OMe) 3}, the yield was 88.3%.

Embodiment 2

[0041] The present embodiment provides a method for synthesizing a fluorosilicone water-repellent and oil-repellent agent by a one-pot method, namely: first add 400g perfluoropolyether (PFPECOF ), then slowly add 17.4g (1.5 equivalents) of propylene alcohol dropwise through the dropping funnel at room temperature, continue to react for 2h after dropping, and remove unreacted low-boiling raw materials under reduced pressure, and the obtained perfluoropolyether acid allyl Esters (PFPECOOCH 2 CH=CH 2 ) continue to stay in the four-necked flask for subsequent use. Add 36.4g (1.5 equivalent) trimethoxysilane and 76.2mg (0.1% equivalent) Karstedt catalyst to the above-mentioned four-necked flask equipped with the allyl perfluoropolyetherate, react at 80°C for 12h, and finally distill Remove unreacted low-boiling raw materials and finally obtain 391.1g colorless target product perfluoropolyether acid trimethoxysilyl propyl ester {PFPECOOCH 2 CH 2 CH 2 Si(OMe) 3}, the yield was ...

Embodiment 3

[0043] The present embodiment provides a method for synthesizing a fluorosilicone water-repellent and oil-repellent agent by a one-pot method, namely: first add 400g perfluoropolyether (PFPECOF ), then slowly add 17.4g (1.5 equivalents) of propylene alcohol dropwise through the dropping funnel at room temperature, continue to react for 4h after dropping, and remove unreacted low-boiling raw materials under reduced pressure, and the obtained perfluoropolyether acid allyl Esters (PFPECOOCH 2 CH=CH 2 ) continue to stay in the four-necked flask for subsequent use. Add 36.4g (1.5 equivalent) trimethoxysilane and 76.2mg (0.1% equivalent) Karstedt catalyst to the above-mentioned four-necked flask equipped with the allyl perfluoropolyetherate, react at 80°C for 12h, and finally distill Remove unreacted low-boiling raw materials and finally obtain 391.5g colorless target product perfluoropolyether acid trimethoxysilyl propyl ester {PFPECOOCH 2 CH 2 CH 2 Si(OMe) 3}, the yield was ...

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Abstract

The invention relates to a waterproof and oil-repellent material, in particular to a waterproof fluorosilicone oil repellent and a one-pot method for synthesizing the same. The chemical formula of thewaterproof fluorosilicone oil repellent is PFPECOOCH2CH2CH2Si(OR)3, wherein R is methyl or ethyl. The synthesis method comprises the following steps: S1, adding 1-1.5 equivalents of allyl alcohol toacyl fluorine structure terminated perfluoropolyether, and performing separation after reaction to obtain perfluoropolyether acid allyl ester with chemical formula of PFPECOOCH2CH=CH2; S2, adding 1.5-2.0 equivalents of alkoxy silane with chemical formula of HSi(OR)3 and 0.1%-0.2% equivalents of a Pt catalyst to perfluoropolyether acid allyl ester, and performing separation after reaction to obtainthe oil repellent. The method is simple, efficient, green and lower in cost, and the synthesized waterproof fluorosilicone oil repellent has good waterproof, oil repellent and abrasion resistant properties.

Description

technical field [0001] The invention relates to a waterproof and oil-repellent material, in particular to a fluorosilicon waterproof and oil-repellent agent and a method for synthesizing it using a one-pot method. Background technique [0002] The early application of glass water on automobile glass, anti-fingerprint varnish on metal materials, and anti-fouling paint on kitchen and bathroom can all be summarized as waterproof and oil-repellent materials. With the development of science and technology, related technologies will be applied in many electronic industries, among which the treatment of glass surface is the most widely used. 3C industry, tempered glass, mobile phone touch screen, digital camera touch screen, flat panel display, optical glass lens, clock, office equipment and other surfaces are frequently touched and used frequently, and are often easily polluted by fingerprints, sweat, grease, and smeared cosmetics , and easily scratched by hard objects. Once the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G65/00C09D171/00C09D5/16
Inventor 刘波吕太勇罗源军庹洪张鸣李斌
Owner ZHONGHAO CHENGUANG RES INST OF CHEMICALINDUSTRY CO LTD
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