T and solidify at the crack, soL-Palmitoylcarnitine site coating without the need of microcaps expansion ofthe cracks, and also the cracks will continue to expandisunder the con generate cracks and damage. On the other hand, the coating without the need of microcapsules prone to make the cracks, and the cracks will continue to expand beneath the continuous action of Platensimycin Technical Information environmental elements. It is actually directly proved that microcapsules can imp of environmental elements. It’s directly proved that microcapsules can increase the aging resistance thermal stability of waterborne coatings. resistance and and thermal stability of waterborne coatings.Figure 12. 12. SEM images of coatingand with microcapsulesmicrocapsules C in oven: Figure SEM images of coating with out without having and with just after aging at 120 immediately after aging (A) without having microcapsules,with 6.0 microcapsules. without microcapsules, (B) (B) with 6.0 microcapsules.atAppl. Sci. 2021, 11,15 ofFigure 12. SEM pictures of coating devoid of and with microcapsules right after aging at 120 in oven: (A) Figure 12. SEM images of coating without the need of and with microcapsules just after aging at 120 in oven: (A) without the need of microcapsules, (B) with 6.0 microcapsules. devoid of microcapsules, (B) with six.0 microcapsules.Figure 13. SEM images of coating without having and with microcapsules just after aging at 160 in oven: (A) Figure 13. SEM photos of coating without and with microcapsules just after aging at at 160 Coven: (A) Figure 13. SEM images of coating without the need of and with microcapsules right after aging 160 in in oven: without the need of microcapsules, (B) with 6.0 microcapsules. (A) without having microcapsules, (B) with 6.0 microcapsules. without the need of microcapsules, (B) with 6.0 microcapsules.Appl. Sci. 2021, 11, x FOR PEER REVIEWFigure 14. SEM images of coating without the need of and with microcapsules following aging in UV weather reFigure 14. SEM images of coating without and with microcapsules immediately after aging UV climate reFigure 14. SEM images of coating without having and with microcapsules immediately after aging in in UV weather sistance test: (A) with no microcapsules, (B) with 6.0 microcapsules. sistance test: (A) devoid of microcapsules, (B) with 6.0 microcapsules. resistance test: (A) with out microcapsules, (B) with 6.0 microcapsules.16 ofThe change of chemical composition of waterborne coatings without the need of microcapsules The alter of chemical composition of waterborne coatings with out microcapsules just before and following aging tests might be observed in Figure 15. The characteristic absorption just before and soon after aging tests is often observed in Figure 15. The characteristic absorption peaks of methyl and methylene are at 2943 cm1 and 2875 cm1. The characteristic absorppeaks of methyl and methylene are at 2943 cm1 and 2875 cm1 . The characteristic tion peak of OH is at 1731 cm1, and the characteristic absorption peak of carbon oxygen absorption peak of OH is at 1731 cm1 , and the characteristic absorption peak of carbon 1 single bond in ester group is at 1166is at . The cm1 . The chemical composition on the oxygen single bond in ester group cm 1166 chemical composition on the waterborne coating ahead of and following aging will not aging doesn’t adjust, indicating that the trigger waterborne coating prior to and immediately after transform, indicating that the aging test is not going to aging chemical not trigger chemical reaction of theis the infrared spectrum from the coating with test will reaction from the coating. Figure 16 coating. Figure 16 will be the infrared spectrum 6.0 microcapsule before and just after aging. It is observed that the characteristic peak posiof the coating with six.0 microcapsule before a.
