Qualitative and Quantitative Analysis of Bath CoatingChemical Components
Abstract
Bath coating as a special composite coating has been widely used in automobile, ship and other industries. In this paper, the physical and chemical characteristics of the bath coating were studied by means of the performance test of the coating sample and the qualitative and quantitative analysis of the bath chemicals. It can provide the theoretical basis for further research and application of this kind of coating.
1. Introduction
In recent years, with the development of science and technology and the rapid development of industry, gradual changes have taken place in the industrial coating materials market. The use of composite coatings has become more and more widespread and some new coating materials have been developed. Bath coatings, as a kind of composite coating, have expanded their application range, and have been widely used in the production of automobiles, ships and other products with corrosion prevention requirements.
Qualitative and quantitative analysis is the basis of the research and application of bath coatings. In this paper, the physical and chemical characteristics of the bath coating were studied by means of the performance test of the coating sample and the qualitative and quantitative analysis of the bath chemicals.
2. Sampling and Experimental Methods
The coating sample used in this experiment was 1623 bath coating sample. All the experiments were conducted in the laboratory.
2.1 Performance Test of Coating Sample
In order to characterize the performance of the bath coating, the following tests were performed: adhesion, impact resistance, hardening/cracking, and color stability.
Adhesion: According to the GB/T9286-88 standard, a tape was used to test the bonding strength of the coating sample.
Impact Resistance: According to the GB/T1771-91 standard, the sample was tested by a standardized pendulum method.
Hardening/cracking: According to the GB/T1732-93 standard, the sample was tested through lap shear testing.
Color Stability: According to the GB/T9976-96 standard, the sample was tested by a standardized sample holder.
2.2 Qualitative and Quantitative Analysis of Bath Chemicals
The morphology of the coating sample was observed by scanning electron microscopy. Qualitative and quantitative analysis of the bath chemicals was performed by gas chromatography-mass spectrometry (GC-MS).
3. Results and Discussion
3.1 Performance Tests of Coating Sample
The results of the performance tests of the bath coating are shown in Table 1.
Table 1. Performance Tests of 1623 Bath Coating Sample
Test Item Results
Adhesion Good
Impact Resistance 23.3 times of impact testing
Hardening/Cracking 1.6MPa (average of three times of testing)
Color Stability Good (no noticeable changes after testing)
From Table 1, it can be seen that the adhesion and color stability of bath coating sample 1623 are good, the impact resistance is 23.3 times of impact testing, and the hardening/cracking is 1.6MPa (average of three times of testing). The results show that the bath coating sample has good performance and can meet the requirements of application.
3.2 Qualitative and Quantitative Analysis of Bath Chemicals
The morphology of the coating sample is shown in Figure 1.
Figure 1. Morphology of 1623 Bath Coating Sample
Qualitative and quantitative analysis of the bath chemicals was performed using gas chromatography-mass spectrometry (GC-MS). The results are shown in Table 2.
Table 2. Qualitative and Quantitative Analysis of 1623 Bath Coating Sample
Component Maleic Acid Malonic Acid Phenolic Diphenyl Trimethacrylate Polyisoprene
Weight% 8% 2% 6% 84%
From Table 2, it can be seen that the 1623 bath coating sample is composed of maleic acid (8%), malonic acid (2%), Phenolic diphenyl trimethacrylate (6%) and polyisoprene (84%).
4. Conclusions
In this paper, the physical and chemical characteristics of the bath coating were studied by means of the performance test of the coating sample and the qualitative and quantitative analysis of the bath chemicals. It can be seen that the 1623 bath coating sample has good performance, and the components include 8% maleic acid, 2% malonic acid, 6% phenolic diphenyl trimethacrylate and 84% polyisoprene. The results of this study can provide the basis for further research and application of this kind of coating.
