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Nanometer silicon dioxide hybrid vinyl phenyl silicon intermediate material and preparing method and application thereof

A nano-silicon dioxide, vinyl phenyl silicon technology, applied in air quality improvement, adhesives, coatings and other directions, can solve the problems of rare, nano-particle agglomeration and sedimentation, achieve low thermal state dielectric loss, and the preparation method is simple and good. The effect of corona resistance

Active Publication Date: 2016-02-24
SUZHOU TAIHU ELECTRIC ADVANCED MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The traditional preparation of nanocomposites is to directly physically dope nanoparticles into organic matter, or graft onto organic matter after surface modification and organicization of nanoparticles. These methods will bring about the problem of nanoparticle agglomeration and settlement. Researchers are working to improve the nano-dispersion problem, so the in-situ polymerization method that came into being is a relatively advanced and effective nanocomposite preparation technology, and has been favored by the public; but at present, this method mainly It is used to modify traditional nano-composite organic resins (polyester resins, epoxy resins, acrylic resins), and is rarely used in the preparation of nano-organic silicone resins

Method used

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  • Nanometer silicon dioxide hybrid vinyl phenyl silicon intermediate material and preparing method and application thereof
  • Nanometer silicon dioxide hybrid vinyl phenyl silicon intermediate material and preparing method and application thereof
  • Nanometer silicon dioxide hybrid vinyl phenyl silicon intermediate material and preparing method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038]See Table 1 for the amount of raw materials added in Example 1.

[0039] A nano silicon dioxide hybrid vinyl phenyl silicon compound, which is prepared through the following steps:

[0040] (1), the organosilicon alcohol solution is added in the reactor with a stirring constant temperature device, then feed nitrogen to remove the air in the reactor, then add ethyl silicate 28 (TEOS-28) and organic solvent, at 20 Stir at ℃ for 0.5h, then raise the temperature to 60±5℃.

[0041] (2) Mix the catalyst, molecular weight modifier and deionized water evenly to make a mixed solution, then add the mixed solution dropwise to the reaction system after step (1), and control the mixed solution to be added dropwise within 1 hour , then heated up to 60°C to 80°C under stirring conditions to maintain the reflux reaction for 3h, and then distilled under reduced pressure at a temperature of 80°C and a pressure of -0.085MPa to remove the H produced in the polymerization reaction 2 O, eth...

Embodiment 2

[0044] See Table 1 for the amount of raw materials added in Example 2.

[0045] A nano silicon dioxide hybrid vinyl phenyl silicon compound, which is prepared through the following steps:

[0046] (1) Add the organosilicon alcohol solution into the reactor with a stirring constant temperature device, then feed nitrogen to remove the air in the reactor, then add ethyl silicate 28 (TEOS-28) and organic solvent, at 30 Stir at ℃ for 0.5h, then raise the temperature to 60±5℃.

[0047] (2) Mix the catalyst, molecular weight modifier and deionized water evenly to make a mixed solution, then add the mixed solution dropwise to the reaction system after step (1), and control the mixed solution to be added dropwise within 1 hour , and then heated to 60°C to 80°C under stirring conditions to maintain the reflux reaction for 2h, and then distilled under reduced pressure at a temperature of 100°C and a pressure of -0.095MPa to remove the H produced in the polymerization reaction 2 O, etha...

Embodiment 3

[0050] The amount of addition of raw materials in embodiment 3 is referring to table 1

[0051] A nano silicon dioxide hybrid vinyl phenyl silicon compound, which is prepared through the following steps:

[0052] (1) Add the organosilicon alcohol solution into the reactor with a stirring constant temperature device, then feed nitrogen to remove the air in the reactor, then add ethyl silicate 28 (TEOS-28) and organic solvent, at 35 Stir at ℃ for 0.5h, then raise the temperature to 60±5℃.

[0053] (2) Mix the catalyst, molecular weight modifier and deionized water evenly to make a mixed solution, then add the mixed solution dropwise to the reaction system after step (1), and control the mixed solution to be added dropwise within 1 hour , and then heated to 60°C to 80°C under stirring conditions to maintain the reflux reaction for 2h, and then distilled under reduced pressure at a temperature of 100°C and a pressure of -0.095MPa to remove the H produced in the polymerization rea...

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Abstract

The invention relates to a nanometer silicon dioxide hybrid vinyl phenyl silicon intermediate material and a preparing method and application thereof. Nanometer silicon dioxide particles are dispersed uniformly and stably, and the nanometer silicon dioxide hybrid vinyl phenyl silicon intermediate material has the advantages of resisting high temperature and corona and being high in activity, the temperature index measured according to a secant method is 200 DEG C-240 DEG C, measured corona resistant time is 18-36 h, vinyl active points carried by the intermediate material is in good compatibility with polyesterimide, heat-resistant polyester, hydrogen-containing silicone and modified epoxy, the intermediate material is particularly suitable for preparing high-temperature-resistant and corona-resistant solvent-free insulating paint, in the using process, volatile gas is avoided, and pollution to the atmosphere environment is avoided. The preparing method for the nanometer silicon dioxide hybrid vinyl phenyl silicon intermediate material is simple, the reaction temperature is low, viscosity of the product and the content of nanometer silicon dioxide are controlled by controlling the quantity of adopted catalysts, molecular weight modifiers and the reaction temperature, and therefore the applicability of the product is wider.

Description

technical field [0001] The invention belongs to the technical field of organosilicon and nano-modified polymer materials thereof, and specifically relates to a nano-silica hybrid vinylphenyl silicon compound, a preparation method and an application thereof. Background technique [0002] The traditional preparation of nanocomposites is to directly physically dope nanoparticles into organic matter, or graft onto organic matter after surface modification and organicization of nanoparticles. These methods will bring about the problem of nanoparticle agglomeration and settlement. Researchers are working to improve the nano-dispersion problem, so the in-situ polymerization method that came into being is a relatively advanced and effective nanocomposite preparation technology, and has been favored by the public; but at present, this method mainly It is used to modify traditional nano-composite organic resins (polyester resins, epoxy resins, acrylic resins), but is rarely used in th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G77/20C08K3/36C09J183/07C09D183/07
CPCY02A50/20
Inventor 景录如张春琪王世强丁坤吴斌夏智峰
Owner SUZHOU TAIHU ELECTRIC ADVANCED MATERIAL CO LTD
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