Compatibility of recycled PVC/ABS blends.: Effect of previous degradation
Compatibility of recycled PVC/ABS blends.: Effect of previous degradation
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DOI：
10.1002/pen.20755
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发表时间：
2007-06-01
影响因子：
3.2
通讯作者：
Lopez, Juan
中科院分区：
文献类型：
--
作者：
Garcia, David;Balart, Rafael;Lopez, Juan
研究了回收聚氯乙烯（PVC）与丙烯腈-丁二烯-苯乙烯共聚物（ABS）的相容性。为此，制备了由从信用卡获得的回收PVC和从电气和电子部门获得的原始ABS和回收ABS制成的共混物，并分析了0至100重量%的组成范围。利用傅里叶变换红外光谱和热重分析法分析了回收材料中存在的降解程度。使用差示扫描量热法测定共混物的组分之间的部分相容性的存在。ABS中弹性体相的存在是在研究界面粘合现象时需要考虑的重要因素。此外，动态力学分析已被用来分析温度对刚度的影响，在功能的共混物的组成。共混物的拉伸强度已根据等效盒模型进行了调整，该模型允许测定共混物组分界面处的粘附水平。最后，使用扫描电子显微镜对断裂进行了形态学研究。
The aim of the present study is to analyze the compatibility between recycled poly(vinyl chloride) (PVC) and acrylonitrile butadiene styrene (ABS). With this objective, blends made from recycled PVC obtained from credit cards and both virgin ABS and recycled ABS obtained from the electrical and electronic sector were prepared, and the range of compositions from 0 to 100 wt% were analyzed. The level of degradation existing within the recycled materials was analyzed using the Fourier transform infrared spectroscopy and thermogravimetric analysis. The existence of partial compatibility between the components of the blend was determined using differential scanning calorimetry. The presence of the elastomeric phase in the ABS is a significant factor which needs to be taken into account when studying the phenomena of interfacial adhesion. In addition, dynamic mechanical analysis has been used to analyze the effect of temperature upon stiffness, in the function of the composition of the blend. The tensile strength of the blends has been adjusted according to the equivalent box model, which has allowed the determination of the level of adhesion at the interface of the blend components. Finally, a morphological study of the fracture has been completed using scanning electron microscopy.