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Flame-retardant plasticizer containing phosphate triester compound and 3,5,6-trichloropyridine-2-ol compound, and preparation thereof

A technology of trichloropyridine and phosphoric acid triester, applied in the field of flame retardant plasticizer, can solve the problems of high purification cost of target products, difficult to handle by-products, difficult separation, etc., and achieves high cost performance, good compatibility and low price Effect

Active Publication Date: 2020-12-29
赵东源 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is on the basis of prior art, to provide a kind of flame retardant plasticizer containing phosphate triester compound and 3,5,6-trichloropyridin-2-alcohol compound, with phosphate triester and 3,5,6-trichloropyridin-2-ol compounds as the main raw materials, which solves the problem of difficult by-products in the production process of (phosphite) triester products, high purification costs of target products, and many wastes. Difficult separation and other problems, while avoiding the safety hazards of separation and purification of by-products (including isomers) of (phosphite) triester; also broadened the use of 3,5,6-trichloropyridin-2-ol compounds , increasing economic, environmental and social benefits

Method used

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  • Flame-retardant plasticizer containing phosphate triester compound and 3,5,6-trichloropyridine-2-ol compound, and preparation thereof
  • Flame-retardant plasticizer containing phosphate triester compound and 3,5,6-trichloropyridine-2-ol compound, and preparation thereof
  • Flame-retardant plasticizer containing phosphate triester compound and 3,5,6-trichloropyridine-2-ol compound, and preparation thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0028] A kind of flame retardant plasticizer containing phosphoric acid triester compound and 3,5,6-trichloropyridin-2-alcohol compound, its preparation method comprises the following steps:

[0029] (1) Fix a 1.5L three-neck glass flask on an iron stand, use an asbestos electric heating sleeve to stabilize the bottom, and connect an electric stirring and feeding funnel.

[0030] (2) Accurately weigh 600 g of trimethyl phosphate, 150 g of dimethyl sulfoxide, and 250 g of 3,5,6-trichloropyridin-2-ol in marked flasks.

[0031] (3) Add the above-mentioned weighed trimethyl phosphate and dimethyl sulfoxide through the funnel in turn, start electric stirring, and control the rotating speed to be 80 rpm.

[0032] (4) While stirring, add the weighed 3,5,6-trichloropyridin-2-ol through the funnel, after the addition is complete, cover with a rough-edged glass stopper, and adjust the stirring speed to 130 rpm.

[0033] (5) Stir until the materials in the three-necked flask are mixed e...

Embodiment 2

[0036] (2) Accurately weigh 667 g of trimethyl phosphate, 41 g of dimethylformamide, and 292 g of 3,5,6-trichloropyridin-2-ol in marked flasks, and the other steps are the same as in Example 1.

Embodiment 3

[0038] (2) Accurately weigh 667 g of trimethyl phosphite, 41 g of dimethyl sulfoxide, and 292 g of 3,5,6-trichloropyridin-2-ol in marked flasks, and the other steps are the same as in Example 1.

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Abstract

The invention relates to a flame-retardant plasticizer containing a phosphate triester compound and a 3,5,6-trichloropyridine-2-ol compound, and a preparation method thereof. The flame-retardant plasticizer is mainly prepared from the following components in parts by weight: 60-90 parts of a phosphate triester compound, 10-39.5 parts of a 3,5,6-trichloropyridine-2-ol compound and 1-20 parts of a cosolvent. The plasticizer provided by the invention is good in intermiscibility, convenient to use, good in plasticity and flame retardance, good in weather resistance and low in cost, and solves theproblems that byproducts are difficult to treat, target products are high in purification cost, more three wastes are generated, separation is difficult and the like in the production process of (phosphite)phosphate triester products.

Description

technical field [0001] The invention belongs to the technical field of flame retardant plasticizers, in particular to a flame retardant plasticizer containing phosphoric acid triester compounds and 3,5,6-trichloropyridin-2-ol compounds and a preparation method thereof. Background technique [0002] At present, the fire safety situation is becoming more and more stringent, the fire protection standards and requirements for plastics for cables, wires, and electrical appliances are becoming more and more stringent, and the fire protection needs of homes, offices, restaurants, hotels, warehouses, workshops and other places and industries are becoming more and more intense. Flame retardants are more toxic and have higher cost of bromine. [0003] Phosphate triester compounds, such as (phosphite) triesters, have good plasticizing properties but low flame retardant efficiency, high volatility, and by-products (including other There are many isomers), and separation and purificatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K5/521C08K5/3432C08K5/524C08L27/06C08K13/02
CPCC08K5/521C08K5/3432C08K5/524C08K13/02C08L2201/02C08L2201/08C08L27/06
Inventor 赵东源贺紫昱张亮
Owner 赵东源
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