Abstract
An eco-friendly transparent blend for ultraviolet and visible light rays from polysulfone (PSF) and cellulose acetate butyrate (CAB) was prepared by melting and re-molding. Some optical, mechanical, thermal and morphological properties of the blend were studied by means of UV-Vis spectroscopy, dynamic mechanical analysis (DMA), thermogravimetric analysis (TGA), scanning electron microscope (SEM) and X-ray diffraction (XRD). The UV-Vis spectroscopy results showed that the blend became more transparent in the ultraviolet region with an increase in CAB concentration, especially at the damage threshold (268 nm). The preferable blend sample contained 0.2% w/w CAB in the PSF/CAB blend, signifying low ultraviolet light absorption while preserving the transparency of the blend. The results also demonstrated that the amount of 0.2% CAB in PSF increased the modulus and thermal stability while decreasing the value of the glass transition temperature.
Highlights
Polymer blend is a combination of two polymers or composites at least
It is clear that an increase in the cellulose acetate butyrate (CAB) concentration in PSF reduced the optical absorbance in the ultraviolet area, especially at the damage threshold (268 nm)
The addition of CAB to PSF does not change the random structure of the blend, and this seems clear in the sample transparency
Summary
Polymer blend is a combination of two polymers or composites at least. The purpose of polymer blending is to obtain a new material with different physical properties to meet performance requirements that cannot be satisfied by the currently available polymer. Melting by using the twin screw extruder (used in this work) is the other method. The twin screw extruder is preferred for melt-blending polymers with added materials instead of using a single screw extruder because of several issues, including its extraordinary mixing ability, the high degree of process resilience, better control of process parameters, and higher process productivity. Mixing and melting two materials for the purpose of forming a homogeneous blend or composite will be easier and more accurate by using the twin screw extruder [2,3]
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
