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Compounding formula of nano aluminum oxide powder surface modifier

A technology of powder surface modification and nano-alumina, applied in the field of surface modifier compound formulation, can solve problems such as uneven dispersion

Inactive Publication Date: 2019-04-12
WUYI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

When a single nonionic surfactant is used to participate in the reaction, the resulting product is fibrous, but some of them are agglomerated together, and the dispersion is not uniform, such as figure 2 shown

Method used

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  • Compounding formula of nano aluminum oxide powder surface modifier
  • Compounding formula of nano aluminum oxide powder surface modifier
  • Compounding formula of nano aluminum oxide powder surface modifier

Examples

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Embodiment 1

[0013] A compound formulation of nano-alumina powder surface modifier described in Example 1, including polyethylene glycol PEG-6000 and sodium dodecylbenzenesulfonate SDBS, polyethylene glycol in the monomolecular adsorption layer The mole fractions of alcohol PEG-6000 and sodium dodecylbenzenesulfonate SDBS are the same, and the interaction parameters of polyethylene glycol PEG-6000 and sodium dodecylbenzenesulfonate SDBS in the monomolecular adsorption layer are 2.72-2.77 , the micelle concentration of sodium dodecylbenzenesulfonate SDBS is 0.0012mol / L. PEG is a water-soluble polymer and cannot form micelles, so in the mixed solution, only SDBS forms micelles. As the concentration of PEG increases, the CMC required to form SDBS micelles decreases. like figure 1 As shown, when the formulation of polyethylene glycol PEG-6000 and sodium dodecylbenzene sulfonate SDBS is used for reaction, the morphology and characteristics of the product can be effectively improved.

[0014...

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Abstract

The invention discloses a compounding formula of a nano aluminum oxide powder surface modifier. The nano aluminum oxide powder surface modifier comprises polyethylene glycol PEG-6000 and sodium dodecyl benzene sulfonate SDBS, and the molar fractions of the polyethylene glycol PEG-6000 and the sodium dodecyl benzene sulfonate SDBS in a monomolecular adsorption layer are the same, wherein the interaction parameter of the polyethylene glycol PEG-6000 and the sodium dodecyl benzene sulfonate SDBS in the monomolecular adsorption layer is in a range of 2.72-2.77, and the micelle concentration of thesodium dodecyl benzene sulfonate SDBS is 0.0012 mol / L. The two surfactants are used in combination, and morphology features of the surface modifier can be effectively improved by utilizing the advantages of the two surfactants. According to the compounding formula of the surface modifier, an adding and capacity increasing effect is achieved, namely a synergistic effect is achieved, so that performance of the mixed compound is more than performance of single use, the length-diameter ratio and dispersity of the surface modifier can be improved, and morphology characteristics of the surface modifier can be effectively improved.

Description

technical field [0001] The invention relates to the technical field of compound formulations of surface modifiers, in particular to a compound formulation of nano-alumina powder surface modifiers. Background technique [0002] At present, alumina fiber belongs to high-performance inorganic ceramic fiber, which has excellent characteristics, such as oxidation resistance, high temperature resistance, wear resistance, etc., and also has strong corrosion resistance, good thermal shock resistance, low high frequency loss and Engineering materials with high electric strength, low dielectric loss, etc., and better overall performance than ordinary materials, have been very important applications in industry, electronics, military and other fields. Alumina fiber has unique characteristics different from nanoparticles or other forms, and its broad application prospects are also very impressive. Alumina fiber has good comprehensive properties and is being used in various fields, but ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K9/04C08K7/08
CPCC08K7/08C08K9/04C08K9/08C08K2201/011
Inventor 尹荔松牛双蛟涂驰周马思琪蓝键
Owner WUYI UNIV
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