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Solventless epoxy refractory coating composition with improved gas hazard in fire

A fire-resistant coating, harmful technology, applied in the direction of epoxy resin coating, fire-proof coating, coating, etc., can solve the problems of difficult heat insulation effect, use of foaming agent, etc., to reduce the risk of suffocation and improve the effect of emission

Active Publication Date: 2017-02-08
KCC CORP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the aforementioned patents have the problem of using a separate blowing agent
In addition, instead of forming a coating film on an iron test piece, the temperature of the back surface of a circular coating film with a thickness of 10 mm and a diameter of 70 mm is measured with an infrared laser thermometer, so it is difficult to objectively confirm the heat insulation effect from the above-mentioned patent

Method used

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  • Solventless epoxy refractory coating composition with improved gas hazard in fire
  • Solventless epoxy refractory coating composition with improved gas hazard in fire
  • Solventless epoxy refractory coating composition with improved gas hazard in fire

Examples

Experimental program
Comparison scheme
Effect test

manufacture example 2

[0064] Manufacturing example 2: Manufacturing of expanded graphite coated with epoxy silane

[0065] After adding 500 g of expanded graphite (EG58, ZJGHI company) to a Henschel mixer or a container mixer, slowly spray 50 g of epoxy silane to the expanded graphite within 30 minutes while stirring slowly. Continue to stir for one hour so that the epoxy silane is fully coated on the expanded graphite, then filter and pack with 20 mesh.

Embodiment 1、2 and comparative example 1、2

[0066] Embodiment 1, 2 and comparative example 1, 2: the manufacture of refractory coating composition composition

[0067] (1) Main composition A

[0068] The ingredients shown in Table 1 below produced a refractory coating master composition. The production method is: using a planetary mixer or a high-speed dissolver, after putting in each raw material, stir at a low or high speed to make it fully dispersed, and after putting in all the raw materials, also stir at a low or high speed to disperse.

[0069] [Table 1]

[0070]

[0071] (unit: g)

[0072] 1) YDPN631: Manufacturer KUKDO Chemical

[0073] 2) AP422: Manufacturer CLARIANT

[0074] 3) EG58: Manufacturer ZJGHI

[0075] 4) Melamine: Manufacturer AMI

[0076] 5) AS-70C: Manufacturer KECC

[0077] 6) MA-100: Manufacturer Mitsubishi

[0078] 7) BYK108: Manufacturer BYK Chemie

[0079] 8) DMP: Manufacturer LANXESS

[0080] (2) Hardener composition B

[0081] The ingredients shown in Table 2 below produced a r...

experiment example

[0092] Experimental example: Measurement of physical properties after painting

[0093] The above-produced main composition and hardener composition were put into a container of a two-component type coating machine at a weight ratio of 2.4:1, and then coated. When painting, the temperature in the container is maintained in the range of 50-70°C, and the gas hazard test is carried out with a test piece with a size of 4mm*220mm*220mm, and the coating is carried out until the thickness of the coating film reaches 6mm. In addition, in the fire resistance test, heating is carried out according to the rapid heating fire temperature curve of ISO834, the size of the test body is 6mm thickness*320mm*500mm, and the coating is carried out with a thickness of 10mm. After coating, dry the coating film and conduct the following gas hazard and fire resistance tests.

[0094] (1) Gas harmfulness test

[0095] The gas hazard test is carried out according to the KSF2271 test method. The main ...

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Abstract

The present invention relates to binary-liquid flame-resistant foaming epoxy paint composition, and more particularly, to a solvent-free flame-resistant epoxy paint composition, the toxicity of the smoke of which is reduced in the event of an outbreak of a fire, said composition comprising: a primary composition (A) comprising 5 to 70 wt % of epoxy resin, 1 to 50 wt % of a phosphorous flame retardant, 1 to 50 wt % of expandable graphite, 0.2 to 20 wt % of fibers, 0.1 to 10 wt % of a pigment, and 1 to 20 wt % of an additive; and a hardener composition (B), comprising 10 to 80 wt % of an amine hardener, 1 to 40 wt % of a phosphorous flame retardant, 0.05 to 20 wt % of fibers, 1 to 40 wt % of filler, 0.1 to 10 wt % of a pigment, and 1 to 20 wt % of an additive, wherein the expandable graphite is coated with a silane compound. The composition of the present invention prevents the emission of noxious gas during the expansion of a paint film in the event of an outbreak of a fire, thus reducing the risk of asphyxiation in the event of a fire. Therefore, the composition of the present invention may be effectively used as a flame-resistant paint not only for facilities for treating oil or gas, such as a maritime structure or a plant, but also for an enclosed space, such as a tunnel or an underground area.

Description

technical field [0001] The present invention relates to a two-component foaming epoxy refractory coating used for oil or gas industrial equipment such as marine structures and factories, and especially relates to the use of expanded graphite coated with a silane compound as a foaming agent in the main composition, thereby preventing fire A solvent-free epoxy refractory coating composition with improved gas hazard. Background technique [0002] Oil fires occurring in marine structures, factories, etc. are characterized by a rapid rise in temperature to 945°C within 5 minutes at the time of the fire. As refractory coatings in areas where oil fires are likely to occur, hardened epoxy-based refractory coatings are mainly used. However, conventional refractory coatings have the disadvantage of emitting a large amount of harmful gas when the coating film expands. [0003] The following three U.S. patents are technologies underlying epoxy-based refractory coatings. [0004] The s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D163/00C09D5/18
CPCC09D5/18C09D163/00
Inventor 严景一郑锡熙韩相贤
Owner KCC CORP CO LTD