Preparation method of polyester resin based conductive intumescent flame-retardant composite coating

A composite technology of polyester resin and flame retardant, which is applied in the direction of conductive coatings, polyester coatings, fireproof coatings, etc. Weak impact resistance and other problems, to achieve the effect of strong self-extinguishing, enhanced antistatic ability, and improved conductivity

Inactive Publication Date: 2018-11-06
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, intumescent flame retardant coatings still have unresolved problems and defects caused by their own material structure, mainly as follows: (1) the flame retardant performance needs to be further improved; (2) the water resistance is low, and when hardening shrinks It is easy to cause cracking of the coating film, and the moisture absorption rate is high; (3) The impact resistance is weak, the coa...

Method used

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  • Preparation method of polyester resin based conductive intumescent flame-retardant composite coating
  • Preparation method of polyester resin based conductive intumescent flame-retardant composite coating
  • Preparation method of polyester resin based conductive intumescent flame-retardant composite coating

Examples

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Effect test

Embodiment 1

[0022] This example provides a method for preparing a polyester resin-based conductive intumescent flame-retardant composite coating. The raw materials used are as follows in terms of mass percentage:

[0023]

[0024] The preparation steps are as follows:

[0025] First, prefabricate the dispersant solution: Dissolve the dispersant sodium silicate nonahydrate in the prescribed amount into quantitative water for the first stirring, and the stirring condition is 70°C, 100r / min stirring for 10min;

[0026] Then prepare the polyester resin-based intumescent flame-retardant coating: sequentially add the polyester resin, pentaerythritol, urea, and ammonium polyphosphate into the prefabricated dispersant solution for a total time of 5 minutes. Stir for the second time, the stirring condition is 70°C, 500r / min stirring for 30min, and the intumescent flame retardant coating is obtained;

[0027] Finally, the formula amount of graphite and polydimethylsiloxane are added to the intu...

Embodiment 2

[0036] The present embodiment adopts the following raw materials in terms of mass percentage:

[0037]

[0038]

[0039] The preparation steps are as follows:

[0040] First, prefabricate the dispersant solution: Dissolve the dispersant sodium silicate nonahydrate in the prescribed amount into quantitative water for the first stirring, and the stirring condition is 60°C, 200r / min stirring for 10min;

[0041] Then prepare the polyester resin-based intumescent flame-retardant coating: sequentially add the polyester resin, pentaerythritol, urea, and ammonium polyphosphate into the prefabricated dispersant solution for a total time of 3 minutes. Stir for the second time, the stirring condition is 60°C, 400r / min stirring for 30min, and the intumescent flame retardant coating is obtained;

[0042] Finally, the formula amount of graphite and polydimethylsiloxane are added to the intumescent flame retardant coating in turn. The graphite addition time lasts for 8 minutes, and th...

Embodiment 3

[0045] The present embodiment adopts the following raw materials in terms of mass percentage:

[0046]

[0047]

[0048] The preparation steps are as follows:

[0049] First, prefabricate the dispersant solution: Dissolve the dispersant sodium silicate nonahydrate in the prescribed amount into quantitative water for the first stirring, and the stirring condition is 65°C, 150r / min stirring for 10min;

[0050] Then prepare the polyester resin-based intumescent flame-retardant coating: sequentially add the polyester resin, pentaerythritol, urea, and ammonium polyphosphate into the prefabricated dispersant solution for a total time of 4 minutes. Stir for the second time, the stirring condition is 65°C, 400r / min stirring for 30min, and the intumescent flame retardant coating is obtained;

[0051] Finally, the formula amount of graphite and polydimethylsiloxane are added to the intumescent flame retardant coating in turn. The graphite addition time lasts for 6 minutes, and th...

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Abstract

The invention provides a preparation method of a polyester resin based conductive intumescent flame-retardant composite coating. The novel environment-friendly and low-cost multifunctional flame-retardant composite coating is prepared with polyester resin as aggregate, graphite as a reinforcing flame retardant and a conductive material, sodium silicate as a dispersant and polydimethylsiloxane as afilm forming agent and a modifier. The composite coating has excellent flame retardance and conductivity and contributes to functional development of flame-retardant coatings.

Description

technical field [0001] The invention belongs to the technical field of chemical building materials and fire safety, and in particular relates to a preparation method of a polyester resin-based conductive expansion type flame-retardant composite coating. Background technique [0002] Intumescent flame retardant coating (IFR) is the main trend to realize the halogen-free ecological development of flame retardant materials. When it burns, it forms a porous intumescent carbon layer, which has the functions of heat insulation, oxygen insulation, preventing volatile matter from escaping and oxygen diffusion. Thermal barrier effect, and the free radicals contained in the carbon layer can react with the gaseous free radicals formed by the thermal degradation of the mixture, terminate the free radical reaction chain of the thermal cracking of the polymer, and slow down the thermal degradation of the polymer protected by the carbon layer in the condensed phase . However, intumescent ...

Claims

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Application Information

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IPC IPC(8): C09D5/24C09D5/18C09D167/00C09D7/61C09D7/63C09D7/65
CPCC08K2003/323C08L2201/02C08L2201/04C09D5/185C09D5/24C09D7/61C09D7/63C09D7/65C09D7/70C09D167/00C08L83/04C08K13/04C08K5/053C08K5/21C08K3/32C08K7/00C08K3/04C08K3/34
Inventor 王亚超赵江平崔晓红李华韩煜久杨宏刚张田娇周钦君李雨星王若琪
Owner XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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