Flame-retardant composite material with DOPO (9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide) modified nano mesoporous molecular sieve

A flame-retardant composite material and nano-mesoporous technology, which is applied in the direction of molecular sieve compounds, molecular sieves and alkali exchange compounds, fibrous fillers, etc., can solve the problems of small smoke production and flame retardant performance limitations, and achieve low smoke generation, Small influence, effect of improving flame retardant efficiency

Inactive Publication Date: 2012-09-19
SHENYANG INSTITUTE OF CHEMICAL TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The material is obtained by directly blending nano-mesoporous molecular sieves, polyphosphate amine, pentaerythritol and melamine with

Method used

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  • Flame-retardant composite material with DOPO (9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide) modified nano mesoporous molecular sieve
  • Flame-retardant composite material with DOPO (9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide) modified nano mesoporous molecular sieve
  • Flame-retardant composite material with DOPO (9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide) modified nano mesoporous molecular sieve

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Embodiment 1

[0030] (1) Weigh 21.6g of DOPO and 100ml of absolute ethanol into a three-neck flask with reflux, stirring, and nitrogen protection, then add 23.6g of KH-560 silane coupling agent, slowly raise the temperature to 75°C, and react for 6 hours to obtain DOPO Type silane coupling agent.

[0031] (2) Weigh 10g of mesoporous molecular sieve MCM-41 and add it to a 100ml three-necked bottle, then add 50ml of deionized water to make a slurry with a certain solubility, fix it in a magnetic stirrer, and heat it to 80°C while stirring; Then add DOPO silane coupling agent (volume ratio 1:1) diluted with absolute ethanol. The mass of DOPO silane coupling agent is 3% of the mass of mesoporous molecular sieve. After stirring continuously for 10 hours, turn off the power and cool , suction filtration, washing with absolute ethanol, suction filtration again, and drying in an oven at 100°C to obtain a surface-modified mesoporous molecular sieve MCM-41.

[0032] 1g of DOPO-modified nano-mesopo...

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Abstract

The invention discloses a flame-retardant composite material with DOPO (9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide) modified nano mesoporous molecular sieve, belongs to the fields of nano mesoporous molecular sieve flame-retardant synergists and halogen-free flame-retardant composite materials, and particularly relates to the preparation method of the DOPO modified nano mesoporous molecular sieve and the flame-retardant composite material with the DOPO modified nano mesoporous molecular sieve. The DOPO is of a hexahydric phosphorus-heterocyclic-ring structure, and is a novel flame retardant intermediate. The nano mesoporous molecular sieve is the flame-retardant synergist. The invention discloses the method for preparing the DOPO modified nano mesoporous molecular sieve and the flame-retardant composite material with the DOPO modified nano mesoporous molecular sieve. Since the compound flame-retardant synergist plays a role in phosphorus/silicon synergistic flame retardance, the obtained product has good expandable carbon forming property, the flame-retardant efficiency of the material is obviously increased, the remaining amount of the residual carbon and the compact degree of a carbon layer are increased, and further the flame redardancy of the composite material is improved to a greater degree.

Description

technical field [0001] The invention relates to a flame-retardant composite material, in particular to a DOPO-modified nano-mesoporous molecular sieve flame-retardant composite material. Background technique [0002] 1. While polymer materials are widely used, they also bring hidden dangers to the safety of human life and property, because most of them are combustible, and the amount of toxic gas and heat generated during combustion are large. These factors, such as high temperature and dense black smoke produced by incomplete combustion, have brought various new problems to escape, lifesaving and firefighting work. [0003] 2. In the production and application of flame retardants, while exploring the synthesis of new high-efficiency flame retardants, people also compound flame retardants with better flame retardant effects, and use the interaction between flame retardants in order to Improve the flame retardant performance, usually called the synergistic effect of flame re...

Claims

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Application Information

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IPC IPC(8): C08L101/00C08L23/12C08K13/06C08K9/06C08K7/26C08K3/36C08K3/32C08K5/053C08K5/3492C01B37/00C01B39/00C09C1/28C09C3/12
Inventor 王娜吴玉贤张静亢萍
Owner SHENYANG INSTITUTE OF CHEMICAL TECHNOLOGY
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