Preparation and properties of polyethylene terephthalate/polyethylene/near infrared reflective pigment composites

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[1] Lai, S.-M.

[2] Hung, K.-C.

[3] 2,Lai, Wei-Jen

[4] Zeng, Jiun-Wei

[5] Cheng, K.-C.

来源：

Lai, S.-M. (smlai@niu.edu.tw) | 1600年 / John Wiley and Sons Inc卷 / 131期

关键词：

Polyethylene terephthalate/high density polyethylene (PET/HDPE) composites containing a near infrared reflective (NIR; nickel antimony titanium yellow rutile) pigment was prepared using ethylene-glycidyl methacrylate-vinyl acetate (EGMA-VA) as a compatibilizer to increase the infrared reflection of PET/HDPE and limit the thermal heat accumulation in light of environmental and energy conservation concerns. HDPE was premixed with NIR to form N-HDPE masterbatch. A good interfacial bonding between PET matrix and HDPE dispersed phase with the help of compatibilizer was confirmed through Fourier transform-infrared spectra; scanning electron microscopy; and torque rheometer. For PET/N-HDPE composites; the major X-ray diffraction peaks and melting behaviors remained unchanged; indicating the limited alternation of crystalline structure for the composite systems with or without compatibilizer. The observed increment in the crystallization temperature of PET for the investigated PET/N-HDPE composites was mainly due to the nucleation role of both inorganic NIR and HDPE. Tensile strength and elongation at break for compatibilized cases at various N-HDPE contents conferred higher values than those of the corresponding counterparts without compatibilizer. Yet; Young's modulus for compatibilized systems was about 40% lower than that for systems without compatibilizer; attributed to the rubbery nature of EGMA-VA. With the inclusion of NIR into HDPE to form PET/N-HDPE composites with or without EGMA-VA compatibilizer; the values of reflectance increased to a great degree. © 2014 Wiley Periodicals; Inc;

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