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Water-based water- and oil-repellent agent for special paper and preparation method thereof

A technology for water and oil repellent and special paper, applied in the field of papermaking, can solve the problem that the comprehensive performance of fluorosilicon water and oil repellant needs to be improved, and achieve the effects of improving mechanical properties and softness, improving water resistance, and improving water and oil resistance.

Active Publication Date: 2016-08-24
ZHEJIANG HENGDA NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the preparation methods of fluorosilicone water and oil repellent mainly include the following two kinds: (1) adopting fluorine-containing olefin or fluorine-containing alkyl alkenyl ether to carry out copolymerization with alkenyl-containing organosiloxane; Fluoroolefins react with organosilicon compounds containing H-Si groups to prepare organosilicon polymers containing fluoroalkyl groups, but the comprehensive performance of the prepared fluorosilicone water and oil repellent agent needs to be improved

Method used

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  • Water-based water- and oil-repellent agent for special paper and preparation method thereof
  • Water-based water- and oil-repellent agent for special paper and preparation method thereof

Examples

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Embodiment 1

[0026] In this embodiment, the water-based water-based and oil-repellent agent for special paper, in parts by mass, includes 0.6 parts of hexamethylene diisocyanate, 105 parts of water, 20 parts of hydrogen-containing silicone oil, 20 parts of vinyl polyether, 2 parts of 1, The product obtained by reacting 1,2,2-tetrahydroperfluorohexyl methacrylate, 1 part of glycidyl methacrylate, 1 part of octadecyl acrylate and 0.38 part of chloroplatinic acid under dark conditions;

[0027] Wherein, the hydrogen content of the hydrogen-containing silicone oil is 0.5; the molar ratio of ethylene oxide to propylene oxide in the vinyl polyether segment is 4:6; the molecular weight of the vinyl polyether is 1000.

[0028] The preparation process of the water-based water-based and oil-repellent agent for special paper in this example is as follows: add hydrogen-containing silicone oil, vinyl polyether, 1,1,2,2-tetrahydroperfluorohexyl methacrylate, methyl Glycidyl acrylate and octadecyl acryla...

Embodiment 2

[0030] The water-based water-repellent and oil-repellent agent for special paper of this embodiment, in parts by mass, includes 0.4 parts of diphenylmethane diisocyanate, 86 parts of water and 20 parts of hydrogen-containing silicone oil, 10 parts of vinyl polyether, 3 parts of 2- (Perfluorobutyl) ethyl methacrylate, 1.5 parts of glycidyl methacrylate, 1.5 parts of long-chain acrylate and 0.3 parts of chloroplatinic acid reacted under dark conditions to obtain the product;

[0031] Wherein, the hydrogen content of the hydrogen-containing silicone oil is 0.3; the molar ratio of ethylene oxide to propylene oxide in the vinyl polyether segment is 5:5; the molecular weight of the vinyl polyether is 1000; The chain ester is a mixture of octadecyl methacrylate and lauryl acrylate with a mass ratio of 1:1.

[0032] The preparation process of the water-based water-based and oil-repellent agent for special paper in this example is as follows: add hydrogen-containing silicone oil, vinyl...

Embodiment 3

[0034] In this embodiment, the water-based water- and oil-repellent agent for special paper comprises, in parts by mass, 0.8 parts of isophorone diisocyanate, 170 parts of water, 25 parts of hydrogen-containing silicone oil, 40 parts of vinyl polyether, and 5 parts of perfluorinated The product obtained by reacting octyl ethyl methacrylate, 2 parts of glycidyl methacrylate, 1.8 parts of hexadecyl methacrylate and 0.5 part of chloroplatinic acid under dark conditions;

[0035] Wherein, the hydrogen content of the hydrogen-containing silicone oil is 0.5; the molar ratio of ethylene oxide to propylene oxide in the vinyl polyether segment is 4:6; the molecular weight of the vinyl polyether is 2000.

[0036]The preparation process of the water-based water-based and oil-repellent agent for special paper in this example is as follows: add hydrogen-containing silicone oil, vinyl polyether, perfluorooctylethyl methacrylate, glycidyl methacrylate and formazan to a drying reactor. Hexade...

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Abstract

The invention relates to a water-based waterproof oil-proof agent for special paper, and a preparation method thereof. The preparation method comprises the following steps: enabling a polyisocyanate compound and water to react with hydrogen-containing silicone oil, vinyl polyether, perfluoro-acrylate, glycidyl methacrylate, long alkyl chain methacrylates and chloroplatinic acid to obtain a product under the dark condition; performing grafted polymerization reaction to the hydrogen-containing silicone oil, vinyl polyether, perfluoro-acrylate, glycidyl methacrylate and long alkyl chain methacrylates under the catalysis action of chloroplatinic acid, and then adding a polyisocyanate compound to partially close hydroxyl on a polymer chain, thus obtaining the water-based waterproof oil-proof agent for special paper, and the water-based waterproof oil-proof agent for special paper has excellent mechanical performance and waterproof and oil-proof properties. The prepared waterproof oil-proof agent can be compounded with a starch water solution and used for paper surface sizing, so that the waterproof, oil-proof, mechanical strength and softness of paper can be greatly improved.

Description

technical field [0001] The invention belongs to the field of papermaking, and relates to a paper waterproof and oil-repellent agent and a preparation method thereof, in particular to a water-based water-based waterproof and oil-repellent agent for special paper and a preparation method thereof. Background technique [0002] With the continuous expansion of the application field of waterproof and oil-proof paper, the demand for paper waterproof and oil-proof agent is increasing day by day. Organic fluorine water and oil repellents have been used in the paper industry for many years. The fluorine-containing alkyl compounds used in paper water and oil repellent treatment agents mainly include perfluoroalkyl complexes, perfluoroalkyl phosphate salts, perfluoroalkyl Alkyl copolymer and fluorosilicone water and oil repellent, etc. The first two types belong to small molecule fluorides, and their application range is narrow. Perfluoroalkyl copolymers are widely used as water and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21H21/16C08G18/63C08F291/06
Inventor 丁九斤姜文龙叶素芳方宏赵新民
Owner ZHEJIANG HENGDA NEW MATERIAL CO LTD