In this work, we evaluate the water vapor transmission rate (WVTR), the permeability (P), solubility (S), and diffusion (D) coefficients of Paraloid B44, Paraloid B72, and Incralac coatings in the temperature range of 5–35°C. The Arrhenius function—diffusion activation energy and preexponential factor—has also been determined from the data: \(D_{B44} = 35.2\;{\text{cm}}^{2} \;{\text{s}}^{ - 1} \exp \left( { - 25\;{\text{kJ mol}}^{ - 1} /{\text{RT}}} \right)\); \(D_{B72} = 9.5\;{\text{cm}}^{2} \;{\text{s}}^{ - 1} \exp \left( { - 23\;{\text{kJ mol}}^{ - 1} /{\text{RT}}} \right)\); \(D_{\text{Incralac}} = 622.8\;{\text{cm}}^{2} \;{\text{s}}^{ - 1} { \exp }\left( { - 28\;{\text{kJ mol}}^{ - 1} /{\text{RT}}} \right)\). These resins are important coating materials, for example, for conservators to protect metallic artifacts, such as statues, against corrosion. Despite Paraloid B44 and B72 resins being considered as reference materials in conservation practice, that is, new coating materials (either water vapor retarders or transmitters) are often compared to them, there are no comprehensive data for the quantities describing the vapor permeability (P, S, D) of these materials. The measurements are based on the ISO cup-method using substrate/coating composite samples. The strength of this technique is that it can also be used when the coating is non-self-supporting; nevertheless, P, S, and D can be deduced for the coating layer itself, and it seems to be a standardizable procedure for comparative performance testing of coating materials. Paraloid B72 layers exhibited higher WVTRs—from 39 to 315 g m⁻² day⁻¹ as the temperature increased from 5 to 35°C—compared to Paraloid B44 and Incralac coatings—from 17 to 190 g m⁻² day⁻¹, respectively. The transmission rate parameters were also compared to the results of corrosion tests. Incralac was the most effective corrosion inhibitor, and the performance of the B44 was better than the B72, which is in good agreement with the transmission rate tests.

在这项工作中，我们评估了在5–35的温度范围内，Paraloid B44，Paraloid B72和Incralac涂层的水蒸气透过率（WVTR），渗透率（P），溶解度（S）和扩散（D）系数。 ℃。还从以下数据确定了Arrhenius函数（扩散激活能和指数因子）：\（D_ {B44} = 35.2 \; {\ text {cm}} ^ {2} \; {\ text {s}} ^ {-1} \ exp \ left（{-25 \; {\ text {kJ mol}} ^ {-1} / {\ text {RT}}} \ right）\）；\（D_ {B72} = 9.5 \; {\ text {cm}} ^ {2} \; {\ text {s}} ^ {-1} \ exp \ left（{-23 \; {\ text {kJ mol}} ^ {-1} / {\ text {RT}}} \ right）\） ;\（D _ {\ text {Incralac}} = 622.8 \; {\ text {cm}} ^ {2} \; {\ text {s}} ^ {-1} {\ exp} \ left（{-28 \ ; {\ text {kJ mol}} ^ {-1} / {\ text {RT}}} \ right）\）。这些树脂是重要的涂料，例如，对于储户而言，可以保护金属制品（例如雕像）免受腐蚀。尽管Paraloid B44和B72树脂在保护实践中被视为参考材料，也就是说，经常将新型涂料（水蒸气阻滞剂或传输剂）与它们进行比较，但尚无用于描述蒸气渗透性的数量的全面数据（P， S，D）的这些材料。该测量基于使用基材/涂料复合样品的ISO杯法。该技术的优势在于，当涂料不自支撑时也可以使用。但是，可以得出涂层本身的P，S和D，这似乎是用于涂层材料比较性能测试的标准化程序。与温度为5至35°C的温度相比，抛物面B72层的WVTR更高-从39到315 g m ^-2天^-1-与抛物面B44和Incralac涂层相比，从17至190 g m ^-2 天^-1， 分别。还将传输速率参数与腐蚀测试的结果进行了比较。Incralac是最有效的腐蚀抑制剂，B44的性能优于B72，这与透射率测试非常吻合。