Study of poly(vinyl chloride)/acrylonitrile–styrene–acrylate blends for compatibility, toughness, thermal stability and UV irradiation resistance

Abstract

A novel rigid poly(vinyl chloride) (PVC)/acrylonitrile–styrene–acrylate (ASA) copolymer blend with good ultraviolet (UV) irradiation resistance and toughness was reported. ASA with good weatherability and toughness was mixed with PVC by conical twin‐screw extruder to improve the UV irradiation resistance and toughness of PVC. The blends were characterized using Fourier‐transform infrared spectra, dynamic mechanical analysis, and scanning electron microscope. Notch Charpy impact test was used to characterize the UV radiation induced changes in toughness. The results showed that ASA was able to toughen PVC with simultaneously improving heat resistance, thermal stabilization, and protecting PVC from irradiation photochemical degradation. © 2013 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 130: 2143–2151, 2013

Principles of Thermal Degradation

“…265 ASA is known to have excellent UV resistance toughness. 265 ASA is known to have excellent UV resistance toughness.…”

Improvement in Low Temperature Izod Impact Strength of SAN/ASA/HNBR Ternary Blends Considering Competing Effects of Glass Transition Temperature and Compatibility

“…. All curves were normalized on the base of the peak of carbonyl (C=O) stretching at about 1,735/cm , as the carbonyl content is nearly constant in all SAN/ASA/HNBR (75/25/30) blends.…”

Toughening modification of (Acrylonitrile‐styrene‐acrylic copolymer)/(α‐Methylstyrene‐acrylonitrile copolymer) binary blend via using different impact modifiers

“…Moreover, ASA has already been used as a polymer modifier in many blend systems. For example, ASA is expected to improve heat distortion temperature (HDT) and weatherability of poly(vinyl chloride) [6,7] without sacrificing the toughness. In addition, ASA is also used to blend with styreneacrylonitrile (SAN) [8][9][10] and polycarbonate [11][12][13] to improve the impact strength.…”