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Macromolecular intumescent flame resistance carbonizing agent with branching and crosslinking structure and preparation method and application thereof

An intumescent flame retardant and intumescent flame retardant technology, which is applied in the direction of fireproof coatings, etc., can solve the problems that the mechanical properties of materials are also greatly affected, the flame retardant efficiency is greatly affected, and the compatibility of polymers is poor, so as to reduce the maximum heat release Speed, excellent flame retardant effect, good foaming and charcoal performance

Active Publication Date: 2013-05-08
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the polymeric triazine derivative char-forming agents synthesized in the above literature are all linear, and are rich in hydroxyl or amino groups, their water resistance is still poor, which has a greater impact on the flame retardant efficiency; Poor capacity and great impact on the mechanical properties of the material

Method used

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  • Macromolecular intumescent flame resistance carbonizing agent with branching and crosslinking structure and preparation method and application thereof
  • Macromolecular intumescent flame resistance carbonizing agent with branching and crosslinking structure and preparation method and application thereof
  • Macromolecular intumescent flame resistance carbonizing agent with branching and crosslinking structure and preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0039] Add 1mol of cyanuric chloride into 400mL of water and stir to disperse the cyanuric chloride evenly, then add 1mol of diethylenetriamine and the aqueous solution made of 40g of NaOH dropwise at the same time at a temperature of 0-5°C, the speed of dropping the NaOH solution should be Control the pH of the reaction system at 6-7, and react for 2 hours; after raising the temperature of the reaction system to 30°C, continue to stir while adding 1mol of diethylenetriamine and an aqueous solution prepared with 40g of NaOH dropwise, and add dropwise The speed of the NaOH solution should be such that the pH of the reaction system is controlled at 6-7, and the reaction lasts for 8 hours; after the temperature of the reaction system is raised to 90°C, 1mol of diethylenetriamine and 40g of NaOH are added dropwise while stirring. Aqueous solution, the speed of adding NaOH solution dropwise should make the pH of the reaction system be controlled at 6-8, and react for 7 hours in tota...

Embodiment 2

[0042] Add 1mol cyanuric chloride to 400mL water and stir to disperse cyanuric chloride evenly, then add 0.5mol diethylenetriamine and an aqueous solution made of 56g KOH dropwise at a temperature of 5-10°C at the same time, the speed of dropping KOH solution The pH of the reaction system should be controlled at 5-7, and the total reaction time is 3 hours; after the temperature of the reaction system is raised to 40°C, 0.5mol of diethylenetriamine and an aqueous solution prepared with 56g of KOH are added dropwise to it while stirring. The speed of dropping the KOH solution should be such that the pH of the reaction system is controlled at 5-7, and the reaction lasts for 10 hours; after raising the temperature of the reaction system to 90°C, continue to add 0.5mol of diethylenetriamine dropwise while stirring and add 56g of KOH For the prepared aqueous solution, the rate of dropping the KOH solution should be such that the pH of the reaction system is controlled at 6-8, and the...

Embodiment 3

[0045] Add 1mol cyanuric chloride into 400mL water / acetone (volume ratio 1:1) mixed solution and stir to disperse cyanuric chloride evenly, then dropwise add 0.5mol diethylenetriamine and use 53g Na 2 CO 3 Aqueous solution was added dropwise with Na 2 CO 3 The speed of the solution should be such that the pH of the reaction system is controlled at 5-7, and the total reaction is 3 hours; after the temperature of the reaction system is raised to 50°C, 0.5mol of diethylenetriamine and 53g of Na 2 CO 3 Aqueous solution was added dropwise with Na 2 CO 3 The speed of the solution should be such that the pH of the reaction system is controlled at 5-7, and the total reaction time is 11 hours; after the temperature of the reaction system is raised to 75°C, 0.5mol diethylenetriamine is added dropwise while stirring and 53g Na 2 CO 3 Aqueous solution was added dropwise with Na 2 CO 3 The speed of the solution should be such that the pH of the reaction system is controlled at 6-8...

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Abstract

The invention relates to a macromolecular intumescent flame resistance carbonizing agent with branching and crosslinking structure which contains the repetitive structure shown as following, wherein X, Y and Z are any one of diamino, diol, diphenol and dithiol and X, Y and Z can be the same or different groups. The invention also relates to a preparation method of the intumescent flame resistance carbonizing agent and a new intumescent fire retardant system containing a new intumescent fire resistance system which comprises the intumescent flame resistance carbonizing agent and acid source, and added flame-retardant synergist and an application thereof. The intumescent flame resistance carbonizing prepared by the method of the invention has extremely good foaming and carbonizing property, low toxicity, strong water resistence and good compatibility and contains no halogen; when adding in polymer, the intumescent flame resistance carbonizing agent can not reduce the mechanical properties of the flame resistance composite material but also increase the mechanical properties; simultaneously, the synthesis technology is simple and is easy to control so that the intumescent flame resistance carbonizing agent is applicable to industrialized production.

Description

technical field [0001] The invention belongs to the technical field of an intumescent flame-retardant char-forming agent and its preparation method and application, and in particular relates to a branched and cross-linked structure macromolecular intumescent flame-retardant char-forming agent as well as its preparation method and application. Background technique [0002] Polyolefin has excellent electrical insulation performance, chemical corrosion resistance and processing performance, and is light and cheap, so it has been widely used. However, polyolefins generally suffer from poor flame resistance and easy melting, and the limiting oxygen index (LOI) is only about 17.4, which limits its application in the fields of wire and cable, electronics, automobiles, and home improvement. In order to solve the problem of poor flame retardancy of polyolefins, flame retardants are usually added therein in the prior art. However, the application of existing halogen-containing flame ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K21/14C08G73/06C08G75/14C08G65/34
Inventor 王玉忠韩俊峰刘云赵国明王德义陈力王俊胜汪秀丽
Owner SICHUAN UNIV
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