Hydrophobic and oleophobic polyolefin material and preparation method thereof

A hydrophobic and oleophobic polyolefin technology, applied in the field of perfluorosurfactant modified polyolefin materials and its preparation, to achieve the effects of preventing fouling, reducing surface energy, and saving energy

Active Publication Date: 2018-08-24
RIFENG ENTERPRISE GRP CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Fluorine-containing organosilicon polymers and silicon-containing organofluorine polymers are co...

Method used

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  • Hydrophobic and oleophobic polyolefin material and preparation method thereof
  • Hydrophobic and oleophobic polyolefin material and preparation method thereof
  • Hydrophobic and oleophobic polyolefin material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] ①. Dissolve 4.7g (39.6mmol) of thionyl chloride in 200ml of dichloromethane in a three-necked flask equipped with a stirring bar, a thermometer and a condenser, and add 5ml of dimethylformamide (DMF), then dropwise Add 10 g (26.4 mmol) of perfluorohexylacetic acid, stir well, react at 90°C for 4 hours, then distill off the solvent and excess thionyl chloride under reduced pressure to obtain 9.23 g of perfluorohexylacetyl chloride.

[0020] ②. Dissolve 2g of nano-silica in 30ml of ethanol aqueous solution, and place it in an ultrasonic generator for ultrasonic dispersion for 30 minutes; then add 12g of aminosilane coupling agent to the above mixture drop by drop, and place it on an electromagnetic stirring table to stir at a constant temperature of 80°C After 3 hours, an aminated nano-silica suspension was obtained.

[0021] ③. Dissolve 9.23 g of perfluorohexylacetyl chloride in 92 ml of dichloromethane, then gradually add it dropwise to the aminated nano-silica suspensi...

Embodiment 2

[0024] ①. Dissolve 6.3g (52.8mmol) of thionyl chloride in 200ml of dichloromethane in a three-necked flask equipped with a stirring bar, a thermometer and a condenser, and add 5ml of dimethylformamide (DMF), then dropwise Add 10 g (26.4 mmol) of perfluorohexylacetic acid, stir well, react at 90°C for 4 hours, then distill off the solvent and excess thionyl chloride under reduced pressure to obtain 9.86 g of perfluorohexylacetyl chloride.

[0025] ②. Dissolve 2g of nano-silica in 30ml of ethanol aqueous solution, and place it in an ultrasonic generator for ultrasonic dispersion for 30 minutes; then add 12g of aminosilane coupling agent to the above mixture drop by drop, and place it on an electromagnetic stirring table to stir at a constant temperature of 80°C After 3 hours, an aminated nano-silica suspension was obtained.

[0026] ③. Dissolve 9.86 g of perfluorohexylacetyl chloride in 98 ml of dichloromethane, then gradually add it dropwise to the aminated nano-silica suspensi...

Embodiment 3

[0043] ①. Dissolve 6.3g (52.8mmol) of thionyl chloride in 200ml of dichloromethane in a three-necked flask equipped with a stirring bar, a thermometer and a condenser, and add 5ml of dimethylformamide (DMF), then dropwise Add 10 g (26.4 mmol) of perfluorohexylacetic acid, stir well, react at 90°C for 4 hours, then distill off the solvent and excess thionyl chloride under reduced pressure to obtain 9.86 g of perfluorohexylacetyl chloride.

[0044] ②. Dissolve 1g of nano-silica in 15ml of ethanol aqueous solution, and place it in an ultrasonic generator for ultrasonic dispersion for 30 minutes; then add 6g of aminosilane coupling agent to the above mixture drop by drop, and place it on an electromagnetic stirring table to stir at a constant temperature of 80°C After 3 hours, an aminated nano-silica suspension was obtained.

[0045] ③. Dissolve 9.86 g of perfluorohexylacetyl chloride in 98 ml of dichloromethane, then gradually add it dropwise to the aminated nano-silica suspensio...

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Abstract

The invention discloses a hydrophobic and oleophobic polyolefin material and a preparation method thereof. The method comprises the following steps: 1) dissolving thionyl chloride in a solvent, addinga catalyst, gradually dropping (perfluorohexyl)acetic acid, stirring the materials, and performing underpressure distillation to obtain perfluor hexyl acetyl chloride; 2) dissolving nano silica in anethanol aqueous solution, performing ultrasonic dispersion for 30 min, gradually dropping an amino silane coupling agent in the above mixed liquor, and heating the materials and stirring the materials to obtain an aminated nano silica fluid suspension; 3) dissolving perfluor hexyl acetyl chloride in an organic solvent, gradually dropping the material in the aminated nano silica fluid suspension,stirring the materials, performing vacuum distillation, performing vacuum drying on the product, and performing ball milling and sealing to obtain the nano silica supported perfluorohexyl acetamide; and 4) uniformly mixing polyolefin resin and nano-silica supported perfluorohexyl acetamide in a high mixer, and then performing melt extruding and granulating to prepare the hydrophobic and oleophobicpolyolefin material. According to the hydrophobic and oleophobic polyolefin material, the surface energy is reduced, the scale is effectively prevented, and energy consumption is saved.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a perfluorosurfactant-modified polyolefin material and a preparation method thereof. Background technique [0002] my country is a big energy shortage country, but also a big energy consumption country. Among all energy consumption, building energy consumption accounts for 30% of the whole society's energy consumption, which brings huge pressure on resources and environment. Heating energy consumption is the largest part of building energy consumption, which can reach 130 million tons of standard coal per year, accounting for about 11.5% of the total energy consumption in the country. The task of energy conservation is arduous and the potential is huge. Low-temperature ground radiant heating is a new type of heating method, which has the advantages of energy saving, environmental protection, comfort and safety, and is in line with the concept of energy saving, emission...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08K9/06C08K3/36C08K9/12C08K5/20
CPCC08K3/36C08K5/20C08K9/06C08K9/12C08K2201/011C08L23/06
Inventor 秦小梅彭晓翊崔宇陈玉李白千
Owner RIFENG ENTERPRISE GRP CO LTD
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