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Triazines cross-linking compounds, preparation method and application thereof

A technology of cross-linking compounds and triazines, which is applied in the field of triazine cross-linking compounds and their preparation, can solve the problems of insurmountable disposal of waste solvents and corrosive hydrogen chloride, highly corrosive waste solvents, complicated process, etc. Achieve the effects of shortening the production cycle, simplifying the process flow, and making the preparation process simple and easy

Inactive Publication Date: 2009-02-11
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The reaction usually involves two different reaction processes, which require the separation of intermediates. The process is relatively complicated, the cycle is long, and a large amount of corrosive waste solvents are produced.
Although the Chinese invention patent CN1715272A provides a one-step process that does not require the separation of intermediates and shortens the reaction time from more than 29 hours to 16-18 hours, it still cannot overcome the problem of dealing with waste solvents and corrosive hydrogen chloride during the reaction process. Environmental pollution and high cost

Method used

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  • Triazines cross-linking compounds, preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Set the temperature of the Rheomix 3000 HAAKE rheometer to 130°C, and when the temperature reaches the set value, turn on the rotor at a speed of 60 rpm. The triglycidyl isocyanurate of 223.0 grams (0.75 moles) is put into the rheometer chamber, after the triglycidyl isocyanurate is completely melted, the melamine of 94.6 grams (0.75 moles) is added in three times, at 5 Minutes added. After 20 minutes of reaction, the torque of the rotor begins to increase slowly. After 100 minutes of continuous reaction, when the torque reaches 60N.m, take out the white paste material, cool it down to 80°C, and then put it into a blast drying oven at 130°C. Medium ripening for 5h. After the cured product is cooled to room temperature, it is pulverized by a high-speed pulverizer, then ground into a fine powder by a planetary ball mill, and passed through a 200-mesh filter sieve for later use.

[0028] Elemental analysis calcd for C 15 h 21 N 9 o 6 : C 42.55%, N 29.79%, H 4.96%, fo...

Embodiment 2

[0030] Set the temperature of the Rheomix 3000 HAAKE rheometer to 130°C, and when the temperature reaches the set value, turn on the rotor at a speed of 60 rpm. The triglycidyl isocyanurate of 148.7 grams (0.5 mole) is put into the rheometer chamber, after the triglycidyl isocyanurate melts completely, the melamine of 126.1 grams (1.0 mole) is added in three times, at 5 Minutes added. After 20 minutes of reaction, the torque of the rotor begins to increase slowly. After 90 minutes of continuous reaction, when the torque reaches 60N.m, take out the white paste material, cool it down to 50°C, and then put it into a blast drying oven at 130°C. Medium ripening for 5 hours. After the cured product is cooled to room temperature, it is pulverized by a high-speed pulverizer, then ground into a fine powder by a planetary ball mill, and passed through a 200-mesh filter sieve for later use.

[0031] Elemental analysis calcd for C 18 h 27 N 15 o 6 : C 39.34%, N 38.25%, H 4.92%, foun...

Embodiment 3

[0033] Set the temperature of the melting section and the homogenizing section of the Φ20 twin-screw extruder to 150°C, the screw speed is 15 rpm, and 1189 grams (4 moles) of triglycidyl isocyanurate are mixed with 1261 grams of melamine (10 moles). After uniformity, put it into the feeding cylinder. The extruded material is hot-cut into pellets. After the pellets are cooled to about 20°C, put all the obtained pellets back into the feeding barrel for the second extrusion, pelletizing and cooling, and repeat this process twice. Finally, put the obtained pellets into a blast drying oven at 140°C for aging for 6 hours. After cooling to room temperature, the cured product is pulverized by a high-speed pulverizer, then ground into a fine powder with a planetary ball mill, and passed through a 200-mesh filter sieve. spare.

[0034] Elemental analysis calcd for C19.5 h 30 N 18 o 6 : C 38.23%, N 41.18%, H 4.90%, found C37.95%, N 40.23%, H 4.88%; decomposition temperature (1% weigh...

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Abstract

The invention discloses a triazine crosslinking compound, a preparation method and applications thereof, wherein, the preparation method comprises the following steps: a multi-amidocyanogen compound is added into melt triglycidyl isocyanurate and reacts for 1-3 hours to obtain a pre-polymer, wherein, the molar ratio of the triglycidyl isocyanurate to the multi-amidocyanogen compound is 1:3-1:1; the pre-polymer is placed in an air dry oven at 120-180 DEG C to slake for 4-6 hours, and the triazine crosslinking compound is obtained. Compared with the reported preparations of triazine flame retardants, the preparation method has simple and easy operation, requires no solvent and discharges no harmful substance. The obtained triazine crosslinking compound has good thermal stability and water resistance and can be compounded with ammonium polyphosphate as a carbon source and an air source to generate an intumescent flame retardant which has good inflaming retarding effect when applies to the inflaming retarding of the polymers, and the obtained carbon layer shows a compact and continuous structure.

Description

technical field [0001] The invention relates to an organic polymer flame retardant auxiliary agent, in particular to a triazine crosslinking compound and a preparation method thereof, which can be used to form an intumescent flame retardant to realize polymer flame retardancy. Background technique [0002] Due to the characteristics of halogen-free, low toxicity and high flame-retardant efficiency, intumescent flame retardants have become one of the important choices of environmentally friendly flame-retardant organic polymer materials. Intumescent flame retardants are generally composed of three components: carbon source, acid source (usually polyphosphate) and gas source (such as nitrogen-containing compounds). Under high temperature conditions, the acid source is transformed into polymetaphosphoric acid, which undergoes an esterification reaction with the carbon source, and the olefin compounds formed by decomposition are cyclized into a polynuclear aromatic ring carbon s...

Claims

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Application Information

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IPC IPC(8): C08G59/32C08G59/50C08L101/00C08L63/00C08K3/32
Inventor 姜宏伟王宇旋靳晓雨
Owner SOUTH CHINA UNIV OF TECH
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