Insulating coating composition

An insulating coating and composition technology, applied in the field of insulating coating composition, can solve the problems of fireproof coating cracking, high thermal conductivity, and reduced thermal insulation performance

Active Publication Date: 2020-12-18
PPG IND OHIO INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The composition is coated on substrates such as steel to provide corrosion and chipping resistance, but there is no mention of providing thermal protection at very low temperatures
[0005] However, these epoxy resin-based coatings of the prior art usually crack or fall off when encountering ultra-low temperatures due to the internal stress generated by the shrinkage of the coating that is greater than the cohesion of the coating or the adhesion of t...

Method used

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  • Insulating coating composition
  • Insulating coating composition
  • Insulating coating composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0089] 1. List of main raw materials used

[0090]

[0091] 2. Preparation of insulating coating composition

[0092] Prepare each insulating coating composition sample according to the composition listed in Table 1 and its weight ratio:

[0093] Pour epoxy resin Epoxy 828 and JH0711 intermedia into a container with dispersing equipment in proportion, and add epoxy resin diluent until uniform while stirring slowly for 10 minutes. Pour in the glass fiber while dispersing, and after stirring at high speed for 1-2 hours, break up the combined fiber strands. Then slowly add glass hollow microspheres and polymer modified fillers under the condition of cooling water, and control the temperature in the whole process not to exceed 70 degrees. Finally, add the thickening additive and mix evenly to obtain the base material.

[0094] Pour Versamid 150 and Jeffamine D 230 into a container with dispersing equipment, add the catalyst, and stir slowly until uniform. Add glass fiber wh...

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PUM

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Abstract

The present invention relates to an insulating coating composition, a substrate coated with such an insulating coating composition, and a method for protecting a substrate using the insulating coatingcomposition. The present invention relates to an insulating coating composition comprising at least the following components: a) a chemically toughened epoxy resin component wherein the toughening segments are elastomeric segments bonded to the epoxy resin by chemical reaction and the proportion of toughening segments is 20-49% by weight, based on the total weight of the chemically toughened epoxy resin component; b) a curing agent; c) reinforcing fibers; and d) a low density filler having a density in the range of 0.05-0.7 g/cm3, preferably 0.08-0.5 g/cm3, more preferably 0.1-0.4 g/cm3.

Description

technical field [0001] The present invention relates to an insulating coating composition, a substrate coated with the insulating coating composition and a method for protecting a substrate using the insulating coating composition. Background technique [0002] During the extraction, storage and transportation of liquefied natural gas, there may be a risk of leakage of liquefied natural gas (Liquid4Natural Gas-LNG, usually as low as -162°C) due to impact, severe vibration or long-term corrosion. The leaked ultra-low temperature liquid will cause the surrounding steel structure to cool down sharply in a short period of time, thereby causing the cold and brittle phenomenon of the steel, causing the steel to crack and break, leading to the collapse of the structure, and causing further disasters. [0003] In order to delay the sharp cooling of the steel structure when encountering ultra-cold liquid, the relevant steel structure will be protected from heat, such as polyurethane ...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D7/61C09D7/65C09D5/25
CPCC09D163/00C09D7/61C09D7/70C09D7/65C08L2205/025C08L2205/18C08L33/20C08K7/14C08K7/28C09D163/10C08K7/16C09D5/185C08G59/44
Inventor 朱罗毅
Owner PPG IND OHIO INC
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