Both the XPS full-scan spectra of PU and PANI-PU show distinct peaks at about 285.1, 398.9 and 531.4 eV, which attribute to C 1s , N 1s and O 1s , respectively (Figure 3 (a)). The elements are...

2006年3月1日 · X-ray photoelectron spectroscopy (XPS) is a widely used method for surface analysis of coating materials. Due to its surface sensitivity and chemical specificity, XPS is an ideal technique for analyzing the surface segregation nature in PU based coatings. From the XPS spectra, the elements present and their chemical state (valence) can be ...

A comparison of the XPS spectra of C 1s on the polyether-PU foam in frass versus the polyether-PU foam control (Fig. 3D) demonstrated that the peak-fitting result of C 1s for the...

In the XPS wide-scan spectra of the pristine PU lm (Fig. 4a), the Si 2p and Si 2s signals with respective binding energies (BEs) of about 99 and 151 eV are associated with alkoxysilanes and...

1999年1月1日 · X-ray photoemission spectra of the α, β, γ, and δ phases of Pu have been analyzed using the Gunnarsson–Schönhammer implementation of the Anderson impurity model. Changes in the relative spectral weights of the two features representing mixed f 5 and f 6 final states are in reasonable agreement with the model's predictions.

XPS挤塑板是一种轻质高强度板材，在密度不超过40kg/m3的情况下，抗压强度可高达350Kpa。 冷库的相对湿度大都在85%以上，故保温材料在高湿度下的保温效果是至关重要的。

2006年3月1日 · 用傅里叶变换红外 (FT-IR) 和角分辨 X 射线光电子能谱 (AR-XPS) 分析所得聚合物。通过使用 Origin 6.0 软件通过高斯曲线拟合方法对 FT-IR 光谱进行解卷积，确定具有结构变量的 PU-脲-酰亚胺薄膜中分子间氢键相互作用的类型和变化。

2006年3月27日 · x射线光电子能谱（xps）用于研究阴离子pu和ps / pu纳米复合材料的表面表征。可以发现，pu的纳米颗粒可以有效地包裹苯乙烯单体，并且pu中每种元素的泄漏类型不受ps引入的影响。

2019年7月1日 · The carbon residue from the flame retardant rigid PU foams after UL-94 test was investigated with XPS. The data showed that the addition of MIFR into PU foams could promote formation of pure carbon char and P-C bond.

hbl聚氨酯保温板（pu）与挤塑板（xps）在屋面系统中的比较 综上所述，相较xps而言，pu保温板具有更好的保温性能、防火性能和耐老化性能，相信作为绿色建筑的重要组成部分，新型屋面系统中也会越来越多地使用聚氨酯这一优质保温材料。