Method for preparing multifunctional composite monodisperse nano film solution

A nano-composite, monodisperse technology, applied in chemical instruments and methods, inorganic pigment treatment, fibrous fillers, etc., can solve the problems of difficult to obtain high-performance, monodisperse aqueous suspensions, etc., to broaden the wavelength of ultraviolet light absorption , improve weather resistance, improve the effect of photocatalytic speed

Inactive Publication Date: 2005-10-26
SICHUAN UNIV
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  • Abstract
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Problems solved by technology

[0005] The purpose of the present invention is to overcome the defects of the prior art and provide a method for manufacturing a multifunctional monodisperse nanocomposite film-forming liquid, which solves the problem of difficulty in obtaining high-performance, monodisperse water-based liquid due to the different degrees of agglomeration of nanoparticles in water. The problem of suspension liquid has realized the functional complementarity of different nanomaterials and the dispersion liquid can form a film under acidic or alkaline conditions, so as to achieve the multifunctional and practical application of nanocomposite film-forming dispersion liquid

Method used

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  • Method for preparing multifunctional composite monodisperse nano film solution
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  • Method for preparing multifunctional composite monodisperse nano film solution

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Embodiment 1

[0020] Embodiment 1. with 1.0g nanocomposite powder (wherein TiO 2 0.80g., ZnO0.10g, SiO 2 0.10 g) was added into 200 ml of deionized water, and the primary dispersion was carried out for 2 hours with an ultrasonic oscillator. Use 2-amino-2-methyl-1-propanol (AMP-95) to adjust the pH of the system to about 8.5, and then continue to ultrasonically disperse the suspension for 48 hours (continuously supplement the water lost during the ultrasonic process). In the above-mentioned dispersed liquid that has been thoroughly dispersed, add high molecular polyvinyl alcohol solution (1%) as a film-forming aid, and the addition amount is to make its concentration in the dispersion liquid reach 1000ppm; Silica sol (SiO 2 Concentration is 8%), and the addition amount is 10% of dispersion liquid weight, makes multifunctional monodisperse nano-composite alkaline film-forming liquid. The performance evaluation results of the dispersion (or coating film) are shown in Table 1. No obvious se...

Embodiment 2

[0021] Embodiment 2. with 2.0g nanocomposite powder (wherein TiO 2 1.60g., ZnO0.20g, SiO 2 0.20 g) was added into 200 ml of deionized water, and the primary dispersion was carried out for 2 hours with an ultrasonic oscillator. Use ammonia water to adjust the pH of the system to about 8.5, and then continue ultrasonically dispersing the suspension for 48 hours (constantly replenish the water lost during the ultrasonic process). In the above-mentioned dispersed liquid that has been thoroughly dispersed, add high molecular polyvinyl alcohol solution (1%) as a film-forming aid, and the addition amount is to make its concentration in the dispersion liquid reach 1000ppm; Silica sol (SiO 2 Concentration is 8%), and the addition amount is 10% of dispersion liquid weight, makes multifunctional monodisperse nano-composite alkaline film-forming liquid. The performance evaluation results of the dispersion (or coating film) are shown in Table 1. No obvious sedimentation of the particle...

Embodiment 3

[0022] Embodiment 3. with 4.0g nanocomposite powder (wherein TiO 2 3.2g., ZnO0.40g, SiO 20.40 g) was added into 200 ml of deionized water, and the primary dispersion was carried out for 2 hours with an ultrasonic oscillator. Use dilute NaOH to adjust the pH of the system to about 8.5, and then continue to ultrasonically disperse the suspension for 48 hours (continuously supplement the water lost during the ultrasonic process). Add high molecular weight polyvinyl alcohol solution (1%) as a film-forming aid to the above-mentioned dispersion liquid that has been thoroughly dispersed, and the addition amount is to make its concentration in the dispersion liquid reach 1000ppm, and then add silica sol as a film-forming adhesive (SiO 2 Concentration is 8%), and the addition amount is 10% of dispersion liquid weight, makes multifunctional monodisperse nano-composite alkaline film-forming liquid. The performance evaluation results of the dispersion (or coating film) are shown in Tab...

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Abstract

The present invention discloses a multifunctional monodisperse nano composite film-forming liquor and its preparation method, belonging to the field of nano material application technology. It is characterized by that it utilizes functional complementary property of nano TiO2, ZnO and SiO2 to disperse nano TiO2, ZnO and SiO2 powders in the water according to a certain ratio, and regulates pH value of system, and adds film-forming adjuvant and film-forming agent to make the above-mentioned material form film. Said invention also provides its advantages are its application range.

Description

technical field [0001] The invention relates to a preparation method of a multifunctional monodisperse nanocomposite film-forming liquid, which can be widely used in industries or fields such as organic matter degradation, sterilizing coatings, and photocatalytic purification of the environment. It belongs to nano material application technology. Background technique [0002] Nano-TiO 2 , ZnO, SiO 2 Due to their unique physical and chemical properties and small size effects, quantum effects and surface effects that conventional materials do not have, their applications in coatings, paints, catalysis, etc. can greatly improve the performance of products and are increasingly valued by people. Nano-TiO 2 , ZnO, SiO 2 The application efficacy of the powder mainly depends on the size, dispersion state, stability of the powder and their functional complementarity after compounding. Due to the high specific surface energy of the nanopowder itself, the particles are in an extre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09C1/36
Inventor 尹光福姚亚东李协吉游潘丽
Owner SICHUAN UNIV
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