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Carbon nitride-polyaniline nano composite material and preparation method thereof, and carbon nitride-polyaniline intumescent fire retardant coating and preparation method thereof

A technology of nano-composite materials and fire-retardant coatings, which is applied in the fields of carbon nitride-polyaniline intumescent fire-retardant coatings and their preparation, carbon nitride-polyaniline nano-composite materials and their preparation fields, and can solve problems such as research and application gaps.

Active Publication Date: 2021-05-18
QINGDAO UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its research and application in the flame retardant of epoxy resin is still blank.

Method used

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  • Carbon nitride-polyaniline nano composite material and preparation method thereof, and carbon nitride-polyaniline intumescent fire retardant coating and preparation method thereof
  • Carbon nitride-polyaniline nano composite material and preparation method thereof, and carbon nitride-polyaniline intumescent fire retardant coating and preparation method thereof
  • Carbon nitride-polyaniline nano composite material and preparation method thereof, and carbon nitride-polyaniline intumescent fire retardant coating and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0048]Put 30g of melamine into the crucible, put the lid on and put it into the muffle furnace, raise the temperature at a rate of 18°C / min, heat it up to 550°C, keep it for 3 hours, cool it down to room temperature, and take it out to get a light yellow graphite phase Lumpy carbon nitride. Then put it into an uncovered crucible, put it into a muffle furnace under the condition of flowing nitrogen (nitrogen input pressure is 0.15MPa), and raise the temperature at a heating rate of 18°C / min. After cooling down to room temperature, it was taken out to obtain a dark yellow carbon nitride solid after thermal stripping. Afterwards, the obtained yellow solid is put into a ball mill for ball milling to obtain carbon nitride nanosheets with a particle size of 0.2-2 microns.

[0049] Take 0.1 g of the obtained carbon nitride nanosheets in 50 ml of 1 mol / L phosphoric acid solution, stir evenly, ultrasonically disperse for 30 min, and then add 3 g of aniline to obtain solution A.

[00...

Embodiment 1-1

[0055] Example 1-1: Add 52.5% of the E-44 ring epoxy resin into the container of the high-speed stirring frosted disperser according to the mass percentage, add 0.125% of the carbon nitride-polyaniline nanocomposite material and stir at 800r / min for 30min, Add 29.875% intumescent flame retardant system and continue to stir at 800r / min for 30min, then add 17.5% solvent-free cardanol modified curing agent, stir at 800r / min for 6min, take 50g and pour it into a 10cm*10cm*1cm aluminum box mold , cured at room temperature for 3 days, and tested with a cone calorimeter after 7 days of curing.

Embodiment 1-2

[0056] Example 1-2: Add 52.5% of the E-44 type ring epoxy resin into the container of the high-speed stirring frosted disperser according to the mass percentage, add 0.188% of the carbon nitride-polyaniline nanocomposite material 800r / min and stir for 30min, Add 29.812% intumescent flame retardant system and continue stirring at 800r / min for 30min, then add 17.5% solvent-free cardanol modified curing agent, stir at 800r / min for 6min, take 50g and pour it into a 10cm*10cm*1cm aluminum box mold , cured at room temperature for 3 days, and tested with a cone calorimeter after 7 days of curing.

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Abstract

The invention provides a carbon nitride-polyaniline nano composite material and a preparation method thereof as well as a carbon nitride-polyaniline intumescent fire retardant coating and a preparation method thereof, relates to the field of fire retardant coatings, and aims to solve the problem that epoxy resin is easily modified and is combined with other materials to form a composite material with performances superior to that of the epoxy resin and the other materials, but due to the interaction of extremely strong Van der Waals force between carbon nitride layers, the carbon nitride is extremely easy to agglomerate and is difficult to disperse well in epoxy resin. The carbon nitride-polyaniline nano composite material is cheap, and the technological process is simple and easy to control. The carbon nitride-polyaniline intumescent fire retardant coating prepared from the obtained carbon nitride-polyaniline nano material has excellent flame retardant property and is environment-friendly.

Description

technical field [0001] The invention relates to the field of fireproof coatings, in particular to a carbon nitride-polyaniline nanocomposite material and a preparation method thereof, and a carbon nitride-polyaniline expansion type fireproof coating and a preparation method thereof. Background technique [0002] Due to its excellent mechanical properties, good thermal stability and dielectric properties, and good adhesion on the surface of other substances, epoxy resin-based coatings are widely used in construction, shipbuilding, and petrochemical industries. However, because epoxy resin is flammable and produces huge smoke when burning, it contains a huge fire hazard, so it needs to be flame-retardantly treated to improve its fire safety performance to meet the fire safety requirements of the applied environment. [0003] Carbon nitride has a graphene-like two-dimensional layered structure, has good chemical stability, thermal stability and mechanical properties, and is wid...

Claims

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Application Information

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IPC IPC(8): C08G73/02C08K3/28C08K7/00B82Y30/00C09D163/00C09D5/18C09D5/08C09D7/61C09D7/65
CPCC08G73/0266C08K3/28C08K7/00B82Y30/00C09D163/00C09D5/185C09D5/08C09D7/61C09D7/70C09D7/65C08K2003/323C08L2201/02C08K2201/011C08L79/02C08K3/32C08K5/053C08K5/34922C08K13/04
Inventor 焦传梅董慧鑫陈希磊李少香
Owner QINGDAO UNIV OF SCI & TECH
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