A new approach for the simultaneous improvement of fire retardancy, tensile strength and melt dripping of poly(ethylene terephthalate)

2003 ◽  
Vol 13 (6) ◽  
pp. 1248 ◽  
Author(s):  
Yu-Zhong Wang ◽  
Xiao-Ting Chen ◽  
Xu-Dong Tang ◽  
Xiao-Hua Du
Keyword(s):  
Tensile Strength ◽  
Ethylene Terephthalate ◽  
Fire Retardancy ◽  
New Approach ◽  
Poly Ethylene Terephthalate ◽  
Poly Ethylene

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.

Processing Characteristics of Recycled Poly(Ethylene Terephthalate) as Melt Spun Fibers

1997 ◽  
Vol 67 (12) ◽  
pp. 891-896 ◽  
Author(s):  
Daw-Ming Fann ◽  
Steve K. Huang ◽  
Jiunn-Yih Lee
Keyword(s):  
Tensile Strength ◽  
Ethylene Terephthalate ◽  
Mechanical Measurements ◽  
Poly Ethylene Terephthalate ◽  
Melt Spun ◽  
Grade Material ◽  
Poly Ethylene ◽  
Spun Fibers

Recycled poly (ethylene terephthalate) (r-pet) used in blends with a fiber grade material (f-pet) is investigated. As-spun fibers of r-pet, f-pet, and r/f-pet blends are made at winding speeds ranging from 1000 to 4000 m/min (mpm), with subsequent drawing in the range of 1.6 to 4.0×. Spinning and drawing behaviors of the fibers are analyzed using orientation (birefringence), boil-off shrinkage, calorimetric (dsc), and mechanical measurements. The fully oriented yarns from the r-pet show a tensile strength of 70% of the fiber grade, with 3.2 g/d (r-pet) to 4.6 g/d (f-pet), which still meets and surpasses minimum industrial requirements. The dsc study of these materials indicates that the decreased crystallinity of the r-pet may be the main cause for the decreased tensile strength of the product.

scholarly journals UIO-66 as Nucleating Agent on the Crystallization Behavior and Properties of Poly(Ethylene Terephthalate)

Polymers ◽  
2021 ◽  
Vol 13 (14) ◽  
pp. 2266
Author(s):  
Yue Yin ◽  
Yuan Wang ◽  
Linghui Meng
Keyword(s):  
Tensile Strength ◽  
Specific Surface ◽  
Crystallization Temperature ◽  
Crystallization Behavior ◽  
Ethylene Terephthalate ◽  
Crystallization Rate ◽  
Nucleating Agent ◽  
High Specific Surface Area ◽  
Poly Ethylene Terephthalate ◽  
Poly Ethylene

In this study, not only was the similar terephthalate structure between UIO-66 and PET utilized to improve compatibility, but the Zr4+ exposed by defects of UIO-66 was also utilized to improve the interaction between PET and UIO-66. Furthermore, PET nanocomposites with different contents of UIO-66 were also fabricated. Due to the high specific surface area and coordination of Zr4+, UIO-66 has high nucleation efficiency in the PET matrix. Compared with pure PET, the crystallization rate of PET/UIO-66 nanocomposite is significantly increased, and the crystallization temperature of PET-UIO66-1 is significantly increased from 194.3 °C to 211.6 °C. In addition, the tensile strength of nanocomposites has also been improved due to coordination.

scholarly journals Mechanical properties of composites based on unsaturated polyester resins obtained by chemical recycling of poly(ethylene terephthalate)

2013 ◽  
Vol 67 (6) ◽  
pp. 913-922 ◽  
Author(s):  
Aleksandar Marinkovic ◽  
Tijana Radoman ◽  
Enis Dzunuzovic ◽  
Jasna Dzunuzovic ◽  
Pavle Spasojevic ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Ethylene Terephthalate ◽  
Unsaturated Polyester ◽  
Tensile Modulus ◽  
Polyester Resins ◽  
Poly Ethylene Terephthalate ◽  
Cloisite 30B ◽  
Poly Ethylene ◽  
Properties Of Composites

Composites based on unsaturated polyester (UPe) resins and fumed silica AEROSIL? RY 50, NY 50, RX 50 and NAX 50, as well as graphite, TiO2 or organically modified clay CLOISITE 30B were prepared in order to investigate the influence of reinforcing agents on the mechanical properties of composites. Unsaturated polyester resins were synthesized from maleic anhydride and products of glycolysis, obtained by depolymerization of poly(ethylene terephthalate) with dipropylene glycol (UPe1 resin) and triethylene glycol (UPe2 resin) in the presence of tetrabutyl titanate catalyst. The obtained unsaturated polyesters were characterized by FTIR spectroscopy, acid and hydroxyl values, and their mechanical properties were also examined. Significant increase of the tensile modulus, tensile strength and decrease of the elongation at break was observed for composites prepared after addition of 10 wt.% of graphite or 10 wt.% of TiO2 to the UPe resins, indicating strong interaction between matrix and filler particles. On the other hand, nanocomposites prepared using UPe2 and hydrophobically modified silica nanoparticles showed lower tensile strength and tensile modulus than polymer matrix. The presence of CLOISITE 30B had no significant influence on the mechanical properties of UPe1, while tensile strength and tensile modulus of UPe2 increased after adding 10 wt.% of clay.

Poly(Butylene Succinate) and Recycled Poly(Ethylene Terephthalate) Blends Adding GMA as Compatibilizer: Mechanical Properties and Chemical Resistance to Household Chemicals

2019 ◽  
Vol 798 ◽  
pp. 291-297 ◽  
Author(s):  
Nattakarn Hongsriphan ◽  
Supakorn Samangain ◽  
Yuttanawee Siriteeraphan ◽  
Nattakarn Yangcheepyuenyoodee
Keyword(s):  
Tensile Strength ◽  
Glycidyl Methacrylate ◽  
Ethylene Terephthalate ◽  
Chemical Resistance ◽  
Chemical Compatibility ◽  
Butylene Succinate ◽  
Elongation At Break ◽  
Poly Ethylene Terephthalate ◽  
Poly Ethylene ◽  
Household Chemicals

Recycled poly(ethylene terephthalate) (rPET) from post-consumer drinking bottles was added into poly(butylene succinate) (PBS), which aimed to improve chemical resistance and also reduce cost. PBS and rPET with the weight ratios of 100/0, 90/10, 80/20, 70/30, 60/40, and 50/50 wt% were melt blended using glycidyl methacrylate (GMA) of 0, 3, and 5 phr as a compatibilizer and dicumyl peroxide (DCP) of 0.5 phr as an initiator. It was found that increasing rPET content enhanced Young’s modulus of the blends. However, tensile strength, and elongation at break of the blends were reduced due to phase separation. Incorporating GMA improved chemical compatibility resulting the PBS/rPET blends to have higher tensile strength and elongation at break. Compared to pure PBS, blending rPET improved chemical resistance to household chemicals such as bathroom cleaning liquid (hydrochloric acid based) and bleaching liquid, which the blends adding GMA showed even better chemical resistance.

scholarly journals Thermomechanical and Morphological Properties of Poly(ethylene terephthalate)/Anhydrous Calcium Terephthalate Nanocomposites

Polymers ◽  
2020 ◽  
Vol 12 (2) ◽  
pp. 276 ◽  
Author(s):  
Franco Dominici ◽  
Fabrizio Sarasini ◽  
Francesca Luzi ◽  
Luigi Torre ◽  
Debora Puglia
Keyword(s):  
Tensile Strength ◽  
Ethylene Terephthalate ◽  
Metal Organic Framework ◽  
Melt Processing ◽  
Flexural Behavior ◽  
Morphological Properties ◽  
Poly Ethylene Terephthalate ◽  
The Matrix ◽  
Poly Ethylene ◽  
Rigid Amorphous

Calcium terephthalate anhydrous salts (CATAS), synthetized by reaction of terephthalic acid with metal (Ca) oxide were incorporated at different weight contents (0–30 wt. %) in recycled Poly(ethylene terephthalate) (rPET) by melt processing. Their structure, morphology, thermal and mechanical properties (tensile and flexural behavior) were investigated. Results of tensile strength of the different formulations showed that when the CATAS content increased from 0.1 to 0.4 wt. %, tangible changes were observed (variation of tensile strength from 65.5 to 69.4 MPa, increasing value for E from 2887 up to 3131 MPa, respectively for neat rPET and rPET_0.4CATAS). A threshold weight amount (0.4 wt. %) of CATAS was also found, by formation at low loading, of a rigid amorphous fraction at the rPET/CATAS interface, due to the aromatic interactions (π−π conjugation) between the matrix and the filler. Above the threshold, a restriction of rPET/CATAS molecular chains mobility was detected, due to the formation of hybrid mechanical percolation networks. Additionally, enhanced thermal stability of CATAS filled rPET was registered at high content (Tmax shift from 426 to 441 °C, respectively, for rPET and rPET_30CATAS), essentially due to chemical compatibility between terephthalate salts and polymer molecules, rich in stable aromatic rings. The singularity of a cold crystallization event, identified at the same loading level, confirmed the presence of an equilibrium state between nucleation and blocking effect of amorphous phase, basically related to the characteristic common terephthalate structure of synthetized Ca–Metal Organic Framework and the rPET matrix.

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