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Refractory rigid rod-shaped organic clay intercalator and its preparing process

A rod-shaped clay and high temperature resistant technology, which is applied in the field of high temperature resistant rigid rod-shaped clay organic intercalation agent and its preparation, can solve the problems of affecting product performance, fracture of intercalation agent, carbonization, etc., so as to improve thermal decomposition temperature and improve thermal stability. performance, excellent thermal stability

Inactive Publication Date: 2002-11-13
SHANGHAI JIAO TONG UNIV
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Problems solved by technology

If this temperature exceeds the limit temperature of the thermal stability of the intercalation agent in the organic clay, phenomena such as fracture, escape, and carbonization of the intercalation agent will occur, and these products may cause polymer degradation, crosslinking, etc., to a certain extent. It will directly affect the performance of the product, so it is necessary to develop a new type of clay organic intercalation agent with good thermal stability

Method used

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  • Refractory rigid rod-shaped organic clay intercalator and its preparing process

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example 1

[0012] Example 1: Under nitrogen protection, 5.924 grams (0.04mol) of phthalic anhydride was dissolved in 80ml of N, in N-dimethylacetamide, and 7.369 grams (0.04mol) of 4 was slowly added dropwise with a constant pressure dropping funnel, The solution of 4'-diaminobiphenyl dissolved in 20ml N,N-dimethylacetamide was added dropwise in 2 hours, then three drops of isoquinoline were added, and the reaction was stirred at room temperature for 2 hours, then the temperature was raised to the reflux of the solution, and continued React for 3 hours. After the reaction, precipitate the reaction solution into 800ml of water, filter, wash, and repeat three times to obtain the primary product, which is added to a mixture of 100ml glacial acetic acid and 10ml concentrated hydrochloric acid, heated and dissolved until the solution is transparent, and precipitated Add 8 grams of sodium bicarbonate to the filtrate in 800ml of water, then filter and recrystallize the insoluble matter with eth...

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Abstract

A refractory rigid rod-shaped clay organic intercalator features that the R-radical biformic acid anhydride and R'-radial diamine take part in reaction to generate the rigid rod-shaped molecule containing R-radical imide ring at one end and the primary amine radical at another end. The said intercalator can be used to modify the clay to increase its thermal decomposition temp.

Description

Technical field: [0001] The invention belongs to a high-temperature resistant rigid rod-shaped clay organic intercalation agent and a preparation method thereof. Background technique: [0002] Polymer / clay nanocomposites have greatly improved the mechanical properties, thermal properties, barrier and flame resistance of the composite materials compared with the original polymers due to the uniform dispersion of clay in the polymer at the nanometer level, which has attracted a lot of attention in the academic circles. With great interest from industry, certain kinds of polymer / clay nanocomposites have been produced industrially. "Journal of Composite Materials", 3, 5-9 (2001) reported that Japan's Toyota Motor Corporation successfully commercialized nylon / LS (layered silicate referred to as LS, the chemical name of clay) nanocomposites for the manufacture of auto parts . In the process of preparing polymer / clay nanocomposites, the organicization of clay is an essential and ...

Claims

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Application Information

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IPC IPC(8): C08K9/04
Inventor 梁竹梅印杰
Owner SHANGHAI JIAO TONG UNIV
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