Miscibility Improvement of LDPE/PVA Blends with Maleic Acid Additions

2nd International Conference on Engineering Sciences

Ameer, Zuhair Jabbar Abdul^1,2 ; Al-Mutairi, Nabeel Hasan^1,2

Collage of Engineering, Kerbala University, Kerbala, Iraq^1

Collage of Material Engineering, Babylon University, Hilla, Iraq^2

关键词: Blend components;    Density testing;    Digital microscopes;    Fourier transform infrared;    Immiscible blends;    Low Density Polyethylene (LDPE);    Maleic acids;    Twin screw extruders;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/433/1/012074/pdf
DOI  :  10.1088/1757-899X/433/1/012074

来源: IOP

【 摘 要 】

Mixing two types of polymers usually results in an immiscible blend, especially when using polymers with different polarities; therefore, a compatibilization process using suitable compatibilizers to improve miscibility is required. In this work, a low-density polyethylene (LDPE)/poly vinyl alcohol (PVA) blend was improved by adding maleic acid as compatibilizer. A twin-screw extruder was used to prepare blend samples, and the LDPE and PVA were mixed with different weight proportions. To identify the compatibility and miscibility of these blends, several tests were conducted, including Fourier transform infrared (FTIR), mechanical property observation, density testing, scanning electron microscopy (SEM), morphology examination, and differential scanning calorimetry (DSC). The results showed that mechanical properties and density were enhanced by the addition of maleic acid to the blends. SEM and Digital microscope results also showed good interaction between blend components when maleic acid was added to the blends.