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PVA (Poly Vinyl Alcohol) modified antimony trioxide and preparation method thereof

A technology of antimony trioxide and polyvinyl alcohol, which is applied in the treatment of dyed polymer organic compounds, fibrous fillers, etc., can solve the problems of high specific gravity, poor dispersion and large particle size of flame retardant antimony trioxide. Achieve good similar compatibility, small intermolecular distance, and enhanced mechanical riveting effect

Active Publication Date: 2016-02-03
ANHUI UNIVERSITY OF TECHNOLOGY AND SCIENCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a polyvinyl alcohol modified antimony trioxide and its Preparation

Method used

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  • PVA (Poly Vinyl Alcohol) modified antimony trioxide and preparation method thereof
  • PVA (Poly Vinyl Alcohol) modified antimony trioxide and preparation method thereof
  • PVA (Poly Vinyl Alcohol) modified antimony trioxide and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The antimony trioxide powder with a particle size of 0.5-5 μm is added into distilled water, and the powder is mechanically stirred to prepare a 30% antimony trioxide slurry. Put the antimony trioxide slurry into the ultrasonic generator, the ultrasonic power is 200-600W, the working frequency is 20-40kHz, and the ultrasonic wave is irradiated for 15min. The polyvinyl alcohol was added to the container, then distilled water was added, and the solution was heated and stirred for 20 minutes at 90° C. to prepare a 10% concentration polyvinyl alcohol solution. In the container, the polyvinyl alcohol solution is firstly added, and then the pretreated antimony trioxide slurry is added, and the mass ratio is 3:100, and the dry basis ratio is 1:100. Then, under the condition of 100° C., the reaction is stirred at a high speed for 20 minutes to prepare an active antimony trioxide water-based suspension, and the mass concentration of the antimony trioxide suspension is about 30%....

Embodiment 2

[0035] The antimony trioxide powder with a particle size of 0.5-5 μm is added into distilled water, and the powder is mechanically stirred to prepare a 40% antimony trioxide slurry. Put the antimony trioxide slurry into the ultrasonic generator, the ultrasonic power is 200-600W, the working frequency is 20-40kHz, and the ultrasonic wave is irradiated for 30min. The polyvinyl alcohol was added to the container, then distilled water was added, and the solution was heated and stirred for 30 minutes at 90° C. to prepare a 10% concentration polyvinyl alcohol solution. In the container, the polyvinyl alcohol solution is firstly added, and then the pretreated antimony trioxide slurry is added, and the mass ratio is 20:100 and the dry basis ratio is 5:100. Then, under the condition of 60° C., high-speed stirring reaction was performed for 40 minutes to prepare a polyvinyl alcohol-modified antimony trioxide water-based suspension, and the mass concentration of the antimony trioxide sus...

Embodiment 3

[0037]The antimony trioxide powder with a particle size of 0.5-5 μm is added into distilled water, and the powder is mechanically stirred to prepare a 25% antimony trioxide slurry. Put the antimony trioxide slurry into the shearing emulsification tester, rotate speed 3000r / min, shear and stir for 15min. The polyvinyl alcohol was added to the container, then distilled water was added, and the solution was heated and stirred for 40 minutes at 90° C. to prepare a 10% concentration polyvinyl alcohol solution. In the container, the polyvinyl alcohol solution is firstly added, and then the pretreated antimony trioxide slurry is added, the mass ratio of which is 7.5:100, and the dry basis ratio is 3:100. Then, under the condition of 90° C., the reaction is carried out with high-speed stirring for 30 minutes to prepare a polyvinyl alcohol-modified antimony trioxide water-based suspension, and the mass concentration of the antimony trioxide suspension is about 24%. Weigh a certain amo...

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Abstract

The invention discloses PVA (Poly Vinyl Alcohol) modified antimony trioxide and a preparation method of the PVA modified antimony trioxide. The PVA modified antimony trioxide is characterized in that micron-grade antimony trioxide powder is taken as a raw material, distilled water is added in the micron-grade antimony trioxide powder to prepare size, ultrasonic processing or shear emulsification dispersion is carried out on the size, and the size reacts with a PVA solution under a certain condition, so that the PVA modified antimony trioxide is prepared. Compared with the prior art, the PVA modified antimony trioxide disclosed by the invention has the remarkable advantages that (1) a PVA water solution is adopted for modification, and the modification is wet modification; (2) preprocessing is carried out on water-based size of antimony trioxide, and a preprocessing method is performed by an ultrasonic generator or a shear emulsification testing machine; (3) the modified antimony trioxide prepared by the invention exists in a water-based dispersion liquid state, so that the modified antimony trioxide can be easily added during use; (4) the application direction and the application method are different from those in the prior art, the modified antimony trioxide prepared by the invention exists in the water-based dispersion liquid state, and the modified antimony trioxide can be used in the field of preparing water-based latex / emulsion polymer composites and can be particularly used in the field of preparing water-based latex / emulsion polymer composite flame-retardant products.

Description

technical field [0001] The invention relates to a flame retardant synergist and a preparation method thereof, in particular to a polyvinyl alcohol modified antimony trioxide and a preparation method thereof. It can be used for water-based latex / emulsion polymer composite materials, especially in the field of preparation of water-based latex / emulsion polymer composite materials for flame retardant products. Background technique [0002] Antimony trioxide is an important inorganic flame retardant, used in combination with halogen compounds, it has excellent flame retardant performance. Antimony trioxide is widely used in the flame retardant modification of resin-based polymer composites, rubber-based polymer composites and fiber-reinforced composites. [0003] Since antimony trioxide is a white crystal with a high specific gravity (5.67), and the particle size of industrial products is large (with a micron structure), when it is applied in water-based latex / emulsion polymer c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09C1/00C09C3/10
Inventor 谢艳霞毕松梅吴飞朱泽贺周业昌石杰
Owner ANHUI UNIVERSITY OF TECHNOLOGY AND SCIENCE
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