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Colored flame retardant charring agent tetraPEPA oxy-p-benzoquinone compound and preparation method thereof

A technology of tetrachloro-p-benzoquinone and a char-forming agent, which is applied in the field of colored flame-retardant char-forming agents, can solve problems such as threats to life and property, and achieve the effects of less investment in equipment, simple preparation methods, and reduced dosage

Inactive Publication Date: 2018-12-18
SUZHOU UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In recent years, with the development of science and technology, polymer materials are widely used in people's production and life, but because of their flammability, they pose a serious threat to people's lives and property, thus promoting the rapid development of flame retardant research and development.

Method used

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  • Colored flame retardant charring agent tetraPEPA oxy-p-benzoquinone compound and preparation method thereof
  • Colored flame retardant charring agent tetraPEPA oxy-p-benzoquinone compound and preparation method thereof
  • Colored flame retardant charring agent tetraPEPA oxy-p-benzoquinone compound and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Example 1 In a 250ml three-necked flask equipped with a stirrer, a thermometer and a high-efficiency reflux condenser, 80ml of dioxane solvent was added, 2.46g (0.01mol) of tetrachloro-p-benzoquinone was added, and 8.08g of PEPA sodium salt ( 0.04mol), heat up to 100℃ and keep for 6h, suction and filter to remove sodium chloride, the filtrate is cooled and crystallized, filtered, and dried to obtain reddish brown powder colored flame retardant char-forming agent tetra-PEPA oxy-p-benzoquinone, the yield is 85.1%, initial decomposition temperature: 350±5°C.

Embodiment 2

[0025] Example 2 In a 250ml three-necked flask equipped with a stirrer, a thermometer and a high-efficiency reflux condenser, 70ml of dioxane solvent was added, 2.46g (0.01mol) of tetrachloro-p-benzoquinone was added, and 8.48g of PEPA sodium salt ( 0.042mol), heat up to 100°C and keep for 6h, suction filter to remove sodium chloride, the filtrate is cooled and crystallized, filtered, and dried to obtain reddish brown powder colored flame retardant char-forming agent tetra-PEPA oxy-p-benzoquinone, the yield is 87.9%, initial decomposition temperature: 350±5°C.

Embodiment 3

[0026] Example 3 In a 250ml three-necked flask equipped with a stirrer, a thermometer and a high-efficiency reflux condenser, 70ml of ethylene glycol diethyl ether solvent was added, 2.46g (0.01mol) of tetrachloro-p-benzoquinone was added, and 8.89g of PEPA sodium salt was added (0.044mol), heat up to 120°C for 7h to keep the temperature, suction filter to remove sodium chloride, the filtrate is cooled and crystallized, filtered and dried to obtain reddish brown powder colored flame-retardant char-forming agent tetra-PEPA oxy-p-benzoquinone, yield It is 89.2%, initial decomposition temperature: 350±5°C.

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Abstract

The invention relates to a colored flame retardant charring agent tetraPEPA oxy-p-benzoquinone compound and a preparation method thereof. The structure of the compound is shown as the following formula in the specification. The preparation method includes: in a reactor equipped with a stirrer, a thermometer and a high-efficiency reflux condensation tube, adding a proper amount of an organic solvent and tetrachloro-p-benzoquinone, then adding a PEPA sodium salt that is 4-5 times the mole of tetrachloro-p-benzoquinone, performing heating to 100-160DEG C, carrying out heat preservation reaction for 6-9h, performing pumping filtration, removing sodium chloride, cooling and crystallizing the filtrate, and conducting filtering and drying, thus obtaining the reddish brown colored flame retardantcharring agent tetraPEPA oxy-p-benzoquinone. The compound provided by the invention has excellent flame retardant and charring properties, also has coloring effect, and is suitable for use as a flameretardant charring agent and coloring agent for nylon, polyester, polyurethane, rubber, polyolefin, unsaturated resin and other materials. Also the preparation method has the characteristics of one-step reaction, simple process and low equipment investment, and is easy to realize industrial production.

Description

Technical field [0001] The invention relates to a colored flame-retardant char-forming agent tetra-PEPA oxy-p-benzoquinone compound and a preparation method thereof, in particular to a tetra-1,1-dimethyl-1-silaza-2,6-dioxa - <4> -Cyclohexyloxy-p-benzoquinone compound and its preparation method. The compound is suitable for use as a flame retardant char-forming agent and coloring agent for materials such as nylon, polyester, polyurethane, rubber, polyolefin, and unsaturated resin. Background technique [0002] In recent years, with the development of science and technology, polymer materials have been widely used in people's production and life, but their flammability has brought serious threats to people's lives and properties, which has promoted the rapid development of flame retardant research and development. Since 1986, the application of halogen-based flame retardants has been continuously restricted, and people's requirements for flame retardants have become higher a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F9/6574C08K5/521C08L67/02C08L23/12C08L75/04C08L77/00C08L21/00
CPCC07F9/65748C08K5/521C08L21/00C08L23/12C08L67/02C08L75/04C08L77/00C08L2201/02
Inventor 韩志慧姚晓鸿花宇王彦林
Owner SUZHOU UNIV OF SCI & TECH
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