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Organic selenium triazine polymer and preparation method thereof

A technology of organic selenium and polymers, applied in organic chemistry and other fields, can solve the problems of high temperature resistance, small addition amount, large addition amount, etc., and achieve the effects of good water resistance, good compatibility, and high decomposition temperature

Active Publication Date: 2016-08-24
ZHEJIANG XUSEN NON HALOGEN SMOKE FLAME RETARDANT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Nowadays, intumescent flame retardants (IFRs) are used for flame-retardant polyolefins. IFRs generally include carbon sources (usually polyols, such as pentaerythritol), acid sources (such as ammonium polyphosphate, or APP) and blowing agents (such as melamine ), but IFR has the disadvantages of large addition amount, easy migration, no water resistance, and high temperature resistance in polyolefin applications. Therefore, a halogen-free IFR with small addition amount, water resistance, and high temperature resistance is developed. Future direction

Method used

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  • Organic selenium triazine polymer and preparation method thereof
  • Organic selenium triazine polymer and preparation method thereof
  • Organic selenium triazine polymer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Example 1 The structural formula of the flame retardant described in the first embodiment is:

[0038]

[0039] The preparation method is as follows: in a 500ml four-necked flask equipped with a stirrer, a thermometer, a constant temperature dropping funnel and a high-efficiency reflux condenser, add 250ml of acetonitrile and 29.72g (0.1mol) of triglycidyl isocyanurate, turn on the stirring, drop Add 6.92g (0.1mol) 65% ethylamine aqueous solution, control the temperature not to exceed 10°C during the dropping process, add dropwise for 3h, then keep the reaction at 30°C for 0.5h, so that the pH value of the reaction solution reaches 7-8; Then add 12.30g (0.1mol) selenourea, control the temperature not to exceed 50°C during the adding process, then raise the temperature to 60°C, keep the reaction for 8h, make the pH of the solution reach 7-8, after cooling, suction filter (solvent recycling) The product FR-1 is obtained after washing, drying and crushing; the yield is 98.5%,...

Embodiment 2

[0040] Example 2 The structural formula of the flame retardant described in the second embodiment is:

[0041]

[0042] The preparation method is as follows: in a 500ml four-necked flask equipped with a stirrer, a thermometer, a constant temperature dropping funnel and a high-efficiency reflux condenser, add 250ml of acetonitrile and 29.72g (0.1mol) of triglycidyl isocyanurate, turn on the stirring, drop Add 6.92g (0.1mol) 65% ethylamine aqueous solution, control the temperature not to exceed 10°C during the dropping process, and then keep the reaction at 30°C for 0.5h to make the pH value of the reaction solution reach 7-8; then add 13.80g (0.1mol) selenocarbazide, control the temperature not to exceed 50°C during the addition process, then heat up to 65°C, keep the temperature for 7 hours, and make the pH of the solution reach 7-8. After cooling, suction filtration (solvent recycling), water washing, The product FR-2 is obtained after drying and pulverization; its yield is 97.3...

Embodiment 3

[0043] Example 3 The structural formula of the flame retardant described in the third embodiment is:

[0044]

[0045] The preparation method is as follows: in a 500ml four-necked flask equipped with a stirrer, a thermometer and a high-efficiency reflux condenser, add 250ml of acetonitrile and 29.72g (0.1mol) of triglycidyl isocyanurate, turn on the stirring, and add 7.51g (0.1mol) ) Thioacetamide, control the temperature not to exceed 10°C during the addition process, then raise the temperature to 25°C, keep the reaction for 4 hours, make the pH value of the reaction solution reach 7-8; then add 12.30g (0.1mol) selenourea, and add it in the process Control the temperature not to exceed 50℃, and then reflux for 6 hours to make the pH of the solution reach 7-8. After cooling, suction filtration (solvent recycling), washing with water, drying and pulverizing, the product FR-3 is obtained; its yield is The decomposition temperature of 96.7% and 1% thermal weight loss is 288.3°C. The...

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Abstract

The invention relates to an organic selenium triazine polymer and a preparation method thereof. The structure of the compound is as shown in the description, wherein n is larger than 1, X is alkylamine, and Y is dialkylamino. The preparation method includes the steps that during stirring, alkylamine with the equal molar ratio is added into a triglycidyl isocyanurate solution, then the mixture is heated to a certain temperature, temperature preservation reaction is conducted for a certain period of time, and the pH value of the solution reaches 7-8; a certain molar ratio of dialkylamino is added, the solution is heated to a certain temperature, temperature preservation reaction is conducted for a certain period of time, pH value of the solution reaches 7-8, after cooling, suction filtration with solvents recycled, washing, drying and smashing are conducted, and the product organic selenium triazine polymer is obtained. The organic selenium triazine polymer is a good flame-retardant agent, has the char forming and anti-dripping functions, and is good in compatibility with high polymer materials, good in heat resistance and water resistance, excellent in processing performance and capable of being used as flame-retardant agents such as polyethylene (PE), polypropylene (PP) and silicon rubber. Raw materials are low in price and easy to obtain, production cost is low, equipment investment is little, the production process is simple, and large-scale production is easy.

Description

Technical field [0001] The invention relates to an organic selenium triazine polymer and a preparation method thereof. The compound can be used as a flame retardant for materials such as polyethylene (PE), polypropylene (PP), and silicone rubber. Background technique [0002] According to information, selenium (Se) is one of the trace elements necessary for the human body announced by the World Health Organization. It has a variety of important physiological functions. If the human body is deficient in selenium, it is easy to suffer from Kashin-Beck disease, Keshan disease, cancer, cardiovascular disease, hemolytic anemia, etc. Selenium can effectively improve the immunity of the human body, eliminate the accumulation of heavy metals in the human body, and has the ability to detoxify heavy metals such as lead, cadmium, mercury, etc. It plays a very important role in protecting the cardiovascular system and liver, repairing cells, etc. Selenium and vitamin E work together to exer...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G73/06C07D251/30C08L23/12C08K5/56
CPCC07D251/30C08G73/0644C08K5/56C08L23/12C08L2201/02C08L79/04
Inventor 孟凡一李四新
Owner ZHEJIANG XUSEN NON HALOGEN SMOKE FLAME RETARDANT CO LTD
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