Heat-resistant coating composition, heat-resistant coating film, heat-resistant coating film-attached substrate, and method for preparing same
A technology for heat-resistant coatings and compositions, applied in anti-corrosion coatings, fire-retardant coatings, chemical instruments and methods, etc., can solve the problems of easy to serious, easy to remain wet for a long time, maintenance and management of complete sets of equipment structures and other problems , to achieve the effect of excellent corrosion resistance
Patent Information
- Authority / Receiving Office
- CN · China
- Current Assignee / Owner
- Publication Date
- 2022-01-28
Smart Images
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Abstract
Description
technical field
[0001] One embodiment of the present invention relates to a heat-resistant coating composition, a heat-resistant coating film, a substrate with a heat-resistant coating film, or a method for producing the same. Background technique
[0002] In the piping of plant structures, etc., in order to prevent heat dissipation to and absorption of heat from the outside air and to suppress energy consumption, heat insulating materials are often installed around the piping (steel pipes). However, sometimes rainwater intruding into the gap between the above-mentioned insulation material and steel (for example: carbon steel, low alloy steel) pipe or the moisture condensed at this position forms a water film on the surface of the steel pipe and corrosion under insulation material (CUI: Corrosion Under Insulation) occurs. ). This CUI means that corrosion cells are formed on the steel pipe surface due to the above-mentioned water film, and local corrosion erosion occurs. Si...
Examples
Embodiment 1～9 and comparative example 1～2
[0178] Add each raw material listed in the main ingredient column of Table 1 to the container in the amount (parts by mass) listed in Table 1, and stir with a high-speed disperser to uniformly disperse it, thereby preparing the main ingredient component.
[0179] However, the details of each component described in Table 1 are shown in Table 2. In addition, the solid content (mass %) of each component in Table 2 is a manufacturer's catalog value.
[0180] [Table 1]
[0181]
[0182] [Table 2]
[0183]
[0184]
[0185] Mix 100 parts by mass of the prepared main ingredient and 1.5 parts by mass of KP-390 as a curing accelerator to obtain a coating composition, and use a film coater with a gap of 700 μm to coat the obtained coating composition on SS400 blasting (equivalent to ISO8501-1Sa2 1 / 2) steel plate, so that the dry film thickness becomes 250μm.
[0186] The coating composition coated on the steel plate was dried at 23° C. for 7 days to prepare a test piece (subs...