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Supramolecular composition with low surface energy and preparation method thereof

A low surface energy, supramolecular technology, applied in the field of functional polymers, can solve the problems of poor durability, relatively high requirements for synthesis and operating conditions, poor bonding fastness between silicone resin and substrate, etc. The effect of simple process and easy industrialization

Active Publication Date: 2015-10-21
HANGZHOU TRANSFAR FINE CHEM CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a low surface energy material, silicone resin has been widely used in construction and textile fields, but there have always been problems with the poor bonding fastness between silicone resin and the substrate, and the poor durability of the constructed low surface energy surface, resulting in Water, dirt and self-cleaning features have a short lifespan
The usual combination of polymers is achieved by covalently bonded copolymers, but the synthesis process of copolymers is cumbersome, and the requirements for synthesis and operating conditions are relatively high

Method used

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  • Supramolecular composition with low surface energy and preparation method thereof
  • Supramolecular composition with low surface energy and preparation method thereof
  • Supramolecular composition with low surface energy and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Put 3g of hydrogen-containing silicone oil (Mw=3000, SiH%=0.5%), 1.6g of n-hexadecene, 0.06g of 1% hexachloroplatinic acid isopropanol solution, and 10g of butyl acetate in a four-necked flask , the device includes a distillation condenser, a stirrer and an internal thermometer, the temperature is raised to 120 ° C for 2 hours, and then the temperature is lowered to 40 ° C, and 10 g of octadecyl acrylate (A1), 0.5 g of methyl methacrylate (A2), 0.2 g1831, 0.4g Pingping O-20 and 47.5g water, the mixture was stirred at 40°C for 30 minutes for self-assembly reaction. Then the temperature was raised to 60° C., and 0.01 g of potassium persulfate was added to react for 3 hours. After cooling, a supramolecular low surface energy composition (E1) is obtained.

Embodiment 2

[0028] Put 3g of hydrogen-containing silicone oil (Mw=5000, SiH%=0.5%), 1.8g of n-octadecene, 0.06g of 1% hexachloroplatinic acid isopropanol solution, and 10g of butyl acetate into a four-necked flask , the device includes a distillation condenser, a stirrer and an internal thermometer, the temperature is raised to 120°C for 2 hours, and then the temperature is lowered to 40°C, and 10g of octadecyl acrylate (A1), 0.2g of 1831, 0.4g of Pingpingjia O-20 and 47.5 g water, and the mixture was stirred at 40°C for 30 minutes to carry out the self-assembly reaction. Then the temperature was raised to 60° C., and 0.01 g of potassium persulfate was added to react for 3 hours. After cooling, a supramolecular low surface energy composition (E2) is obtained.

Embodiment 3

[0030] Put 4g of hydrogen-containing silicone oil (Mw=10000, SiH%=0.8%), 2.4g of n-octadecene, 0.08g of 1% hexachloroplatinic acid isopropanol solution, and 12g of butyl acetate in a four-necked flask , the device includes a distillation condenser, a stirrer and an internal thermometer, the temperature is raised to 120°C for 2.5 hours, and then the temperature is lowered to 40°C, and 12g of octadecyl acrylate (A1), 0.5g of hydroxyethyl acrylate (A2), 0.3g of 1831 , 0.5g Pingping, add O-20 and 52.5g water, and stir the mixture at 40°C for 40 minutes to carry out self-assembly reaction. Then the temperature was raised to 60° C., and 0.02 g of potassium persulfate was added to react for 3 hours. After cooling, a supramolecular low surface energy composition (E3) is obtained.

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Abstract

The invention discloses a supramolecular composition with low surface energy and a preparation method thereof. Due to the use of fluorine compounds of the existing composition with low surface energy, the durability of a surface with low surface energy which is built on a substrate is poor. The supramolecular composition with low surface energy of the invention comprises, by weight, 4-15% of polysiloxane with long alkyl side chains, 10-30% of a long chain alkyl acrylate monomer, 0.5-2% of an emulsifying agent, 5-15% of a solvent, 66-74% of deionized water, and 0.01-0.5% of an initiator; and the polysiloxane with long alkyl side chains is bonded with the long chain alkyl acrylate monomer by hydrophobic interaction in a supramolecular manner. The supramolecular composition with low surface energy avoids the use of fluoride compounds, and can improve the durability of the built surface with low surface energy. The preparation process is simple, and the supramolecular composition with low surface energy can effectively reduce the surface energy of the substrates such as glass fibers and fabric fibers.

Description

technical field [0001] The invention relates to the field of functional polymers, in particular to a supramolecular low surface energy composition and a preparation method thereof. technical background [0002] Compositions for imparting lower surface energy to substrates to achieve water repellency, stain repellency and self-cleaning functions are well known in the art. The current compositions with low surface energy mainly include fluorocarbon polymers, silicone resins and special modified materials. There are human health threats and environmental pollution problems in the process of production and use of fluorine-containing compounds, so it is necessary to reduce or avoid the use of fluorine compounds. As a low surface energy material, silicone resin has been widely used in construction and textile fields, but there have always been problems with the poor bonding fastness between silicone resin and the substrate, and the poor durability of the constructed low surface e...

Claims

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Application Information

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IPC IPC(8): C08L83/05C08L33/08C08L33/12C08L33/14C08F220/14C08F220/18C08F220/28
Inventor 陈正坚宋金星王胜鹏王洪清施洪坤陆林光吴彬陈八斤杜蓉蓉
Owner HANGZHOU TRANSFAR FINE CHEM CO LTD
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