2.2 共混膜红外光谱(FTIR)分析 FTIR可用于检测不同聚合物分子中基团之间的相互作用以及共混物的化学结构变化。通过ATR-FTIR法得到了不同共混比下PVC/CPVC/CA共混膜的红外光谱,结果如图3所示。由图3可以看出,M-1在1248cm-1处为—CH弯曲振动,615cm-1...
Beltran M,Marcilla A.PVC Plastisols Decomposition by FTIR Spectroscopy.European Polymer Journal. 1997Beltran, M. & Marcilla, A. 1997. PVC Plastisols Decomposition by FT-IR Spectroscopy. European Polymer Journal, 33(8): 1271-80.Beltran M ,Marcilla A. PVC Plastisols Decomposition by F T2 IR ...
TG-FTIR分析技术在PVC热降解过程研究中的应用
form infrared spectrometer1 The pyrolysis instrument is designed to f it into the sample compartment of a standard FTIR bench, and places the f ilament of pyrlprobe directly in the light path, thus continuous monitoring of the i1r1 spectrum ...
Fig1FTIRspectrumoflysisliquidofPVCsample 初步推测样品主体成分可能为PVC.可以用 四氢吠喃溶解,采用溶解制样法进行FTIR分析. 2.1.2FTIR准确定性分析 溶解制样法去掉了大部分增塑剂和无机 填料,FTIR谱图(见图2)显示的主要是PVC 的特征,在2975cm～,2935cm～,2913cm～, 9l 92 2867Cm处归属于饱和C—H 伸缩振动...
FTIR测试:采用傅里叶红外光谱仪对经紫外光处理的样品进行测试,扫描范围4 000~600 cm-1,分辨率6 cm-1,扫描次数64。 EDS分析:利用能谱仪测试经紫外光处理的膜材表面元素的能谱,放大倍率1 000。 SEM观察:试样表面镀金,采用扫描电子显微镜观察其形态。
PVC新型无毒热稳定剂季戊四醇锌的合成及应用研究
新型PVC用液体钙锌复合热稳定剂的合成与应用 万方数据
S1. The grafted PDMA chains were confirmed by FTIR spectroscopy (Fig. 2a). The peaks in the spectrum of PVC-g-PDMA at 1732 cm−1 and 1152 cm−1 correspond to C=O stretching vibration and C―N stretching vibration, respectively. In 1H NMR spectrum of PVC-g-PDMA (Fig. 1b),...
3.1.1. FTIR test and XRD FTIR analysis of pristine and modified membranes with SiO2-SDS NPs are presented in Fig. 4. The FTIR spectrum of PSS-0 exhibits several bands characteristic of C–Cl, C–H, CC and O–H groups. As observed from Fig. 4, the characteristic bands of pristine PV...