scholarly journals Fluorescent SiO2@Tb3+(PET-TEG)3Phen Hybrids as Nucleating Additive for Enhancement of Crystallinity of PET

Polymers ◽  
2020 ◽  
Vol 12 (3) ◽  
pp. 568 ◽  
Author(s):  
Yanna Zhang ◽  
Yao Wang ◽  
Hao Li ◽  
Xuezhong Gong ◽  
Jixian Liu ◽  
...  
Keyword(s):  
Ethylene Terephthalate ◽  
Sio2 Nanoparticles ◽  
Polymer Processing ◽  
Hybrid Polymer ◽  
Inorganic Component ◽  
Hybrid Polymers ◽  
Poly Ethylene Terephthalate ◽  
Multifunctional Additives ◽  
Poly Ethylene

A hybrid polymer of SiO2@Tb3+(poly(ethylene terephthalate)-tetraglycol)3 phenanthroline (SiO2@Tb3+(PET–TEG)3Phen) was synthesized by mixing of inorganic SiO2 nanoparticles with polymeric segments of PET–TEG, whereas PET–TEG was achieved through multi-step functionalization strategy. Tb3+ ions and β-diketonate ligand Phen were added in resulting material. The experimental results demonstrated that it was well blended with PET as a robust additive, and not only promoted the crystallinity, but also possessed excellent luminescence properties. An investigation of the mechanism revealed that the SiO2 nanoparticles functioned as a crystallization promotor; the Tb3+ acted as the fluorescent centre; and the PET–TEG segments played the role of linker and buffer, providing better compatibility of PET matrix with the inorganic component. This work demonstrated that hybrid polymers are appealing as multifunctional additives in the polymer processing and polymer luminescence field.

scholarly journals Interfacial Adhesion and Mechanical Properties of PET Fabric/PVC Composites Enhanced by SiO2/Tributyl Citrate Hybrid Sizing

Nanomaterials ◽  
2018 ◽  
Vol 8 (11) ◽  
pp. 898
Author(s):  
Dandan Pu ◽  
Fuyao Liu ◽  
Yubing Dong ◽  
Qingqing Ni ◽  
Yaqin Fu
Keyword(s):  
Interfacial Adhesion ◽  
Ethylene Terephthalate ◽  
Sio2 Nanoparticles ◽  
New Approach ◽  
Pet Fabric ◽  
Poly Ethylene Terephthalate ◽  
Wide Range ◽  
Peeling Strength ◽  
Poly Ethylene

Poly(ethylene terephthalate) (PET) fabric-reinforced polyvinyl chloride (PVC) composites have a wide range of applications, but the interface bonding of PET fabric/PVC composites has remained a challenge. In this work, a new in-situ SiO2/tributyl citrate sizing agent was synthesized according to the principle of “similar compatibility.” The developed sizing agent was used as a PET surface modifier to enhance the interfacial performance of PET fabric/PVC composites. The morphology and structure of the PET filaments, the wettability and tensile properties of the PET fabric, the interfacial adhesion, and the tensile and tearing properties of the PET fabric/PVC composites were investigated. Experimental results showed that many SiO2 nanoparticles were scattered on the surface of the modified PET filaments. Moreover, the surface roughness of the modified PET filaments remarkably increased in comparison with that of the untreated PET filaments. The contact angle of the modified PET filaments was also smaller than that of the untreated ones. The peeling strength of the modified PET fabrics/PVC composites was 0.663 N/mm, which increased by 62.50% in comparison with the peeling strength of the untreated ones (0.408 N/mm). This work provides a new approach to the surface modification of PET and improves the properties of PET fabric/PVC composites.

scholarly journals Adsorption of humic acid on mesoporous carbons prepared from poly- (ethylene terephthalate) templated with magnesium compounds

2012 ◽  
Vol 14 (4) ◽  
pp. 95-99 ◽  
Author(s):  
Justyna Karolczyk ◽  
Sylwia Mozia ◽  
Antoni W. Morawski ◽  
Jacek Przepiórski
Keyword(s):  
Humic Acid ◽  
Water Adsorption ◽  
Ethylene Terephthalate ◽  
Porous Carbons ◽  
Preparation Conditions ◽  
Poly Ethylene Terephthalate ◽  
Magnesium Compounds ◽  
Textural Parameters ◽  
Poly Ethylene

Abstract Porous carbons obtained from poly(ethylene terephtalate) contained in a mixture with either MgCO3 or Mg(OH)2 were examined as adsorbents for removal of humic acid from water. Adsorption of the model contaminants is discussed in relation to the textural parameters of the obtained carbon materials. Pore structure parameters of the carbonaceous materials were strongly influenced by preparation conditions including temperature and relative amounts of the inorganics used during preparations as template. Porous carbons prepared revealed a potential to purify water from the model contaminant of high molecular weight. The results presented confirmed a key role of mesoporosity in the adsorption of humic acid. Fluorescence spectroscopy was confirmed to be an useful method to evaluate concentration of humic acid in water.

Efficient glycolysis of PET catalyzed by a metal-free phosphazene base: the important role of EG-

2022 ◽  
Author(s):  
Chumeng Fan ◽  
Lei Zhang ◽  
Chenxi Zhu ◽  
Jingjing Cao ◽  
Yunlong Xu ◽  
...  
Keyword(s):  
Ethylene Glycol ◽  
Ethylene Terephthalate ◽  
High Quality ◽  
Metal Free ◽  
Poly Ethylene Terephthalate ◽  
Poly Ethylene

Developing efficient metal-free catalyst for the glycolysis of waste poly(ethylene terephthalate) (PET) with ethylene glycol (EG) has attracted increasing attention due to the demanding require for high-quality monomer used in...

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