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A kind of polyvinyl 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 easy settlement of flame retardant antimony trioxide, and achieve Good similar miscibility, small intermolecular distance, and enhanced mechanical riveting effect

Active Publication Date: 2017-09-05
ANHUI POLYTECHNIC UNIV
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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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  • A kind of polyvinyl alcohol modified antimony trioxide and preparation method thereof
  • A kind of polyvinyl alcohol modified antimony trioxide and preparation method thereof
  • A kind of polyvinyl alcohol modified antimony trioxide and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Add antimony trioxide powder with a particle diameter of 0.5-5 μm into distilled water, and change mechanical stirring while adding the powder 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 15 minutes. Add polyvinyl alcohol into the container, then add distilled water, and heat and stir at 90° C. for 20 min to prepare a 10% polyvinyl alcohol solution. In the container, first add the polyvinyl alcohol solution, and then add the pretreated antimony trioxide slurry, the mass ratio is 3:100, and the dry basis ratio is 1:100. Then, under the condition of 100° C., high-speed stirring and reacting for 20 minutes, an active antimony trioxide water-based suspension was prepared, and the mass concentration of the antimony trioxide suspension was about 30%. Weigh a certain amount of active antimony trioxide wate...

Embodiment 2

[0035] Add antimony trioxide powder with a particle diameter of 0.5-5 μm into distilled water, and change mechanical stirring while adding the powder 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. Add polyvinyl alcohol into the container, then add distilled water, and heat and stir at 90° C. for 30 min to prepare a 10% polyvinyl alcohol solution. In the container, the polyvinyl alcohol solution is added first, and then the pretreated antimony trioxide slurry is added, the mass ratio is 20:100, and the dry basis ratio is 5:100. Then, under the condition of 60° C., high-speed stirring and reacting for 40 minutes, the polyvinyl alcohol modified antimony trioxide water-based suspension was prepared, and the mass concentration of the antimony trioxide suspension was 35%. Weigh a certain amount of active an...

Embodiment 3

[0037]Add antimony trioxide powder with a particle diameter of 0.5-5 μm into distilled water, and change mechanical stirring while adding the powder to prepare a 25% antimony trioxide slurry. Put the antimony trioxide slurry into a shear emulsification tester at a speed of 3000r / min, and shear and stir for 15min. Add polyvinyl alcohol into the container, then add distilled water, and heat and stir at 90° C. for 40 min to prepare a 10% polyvinyl alcohol solution. In the container, first add the polyvinyl alcohol solution, and then add the pretreated antimony trioxide slurry, the mass ratio is 7.5:100, and the dry basis ratio is 3:100. Then, under the condition of 90° C., high-speed stirring and reacting for 30 minutes, the polyvinyl alcohol-modified antimony trioxide water-based suspension was prepared, and the mass concentration of the antimony trioxide suspension was about 24%. Weigh a certain amount of active antimony trioxide water-based suspension, and then add dropwise 0...

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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 in water-based latex / emulsion polymer composite materials, especially in the field of preparation of flame-retardant products of water-based latex / emulsion polymer composite materials. Background technique [0002] Antimony trioxide is an important inorganic flame retardant, which has excellent flame retardant performance when used in combination with halogen compounds. Antimony trioxide has been widely used in 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 (micron structure), when it is used in water-based latex / emulsion polymer comp...

Claims

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Application Information

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Patent Type & Authority Patents(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 POLYTECHNIC UNIV