High-fire-safety thermoplastic polyester constructed by novel sulfonate with benzimidazole structure

Wu, Wan‐Shou; Duan, Ping-Hui; Wang, Yinlong; Chen, Li; Wang, Xiuli; Wang, Yu‐Zhong

doi:10.1007/s40843-020-1605-7

Cited by 16 publications

(13 citation statements)

References 39 publications

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“…Generally, as ionic groups, potassium sulfonate groups can form ionic aggregates through electrostatic interaction and then form a physical cross-linking network. ,− To investigate the physical cross-linking ability of SK, both PC and PC/SK 1 were tested by TG-DSC. As shown in Figure S7, unlike the DSC curve of neat PC, PC/SK 1 showed an obvious exothermic peak, and the peak reached its maximum at 497 °C.…”

Section: Resultsmentioning

confidence: 99%

“…In the past work in our lab, to reduce fire risk, intelligent cross-linkable units were incorporated into the molecular chains of polymers. − For these prepared polymers, chemical or physical cross-linkable units can interact with the other structures in polymers and form stable cross-linking network in a certain temperature range above the processing temperature. Wu et al prepared a variety of flame-retardant copolyesters containing sulfonate and benzimidazole by melt copolymerization. In the joint action of carbonization and ionic aggregation, the resulting copolymer exhibited a lower smoke and heat release rate compared to the original polymer, as well as a higher LOI value and vertical burning rating.…”

Section: Introductionmentioning

confidence: 99%

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Sulfonate-Group-Containing Polymeric Polyamide for Simultaneous Transparency and Flame Retardancy of Polycarbonate

Chen

Zhao

et al. 2023

ACS Appl. Polym. Mater.

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In the functionalization of transparent polycarbonate (PC), the addition of additives often results in damage to the transparency of polycarbonate, thereby limiting its application in the field with a high transparent requirement. In this study, sulfonate-group-containing polymeric polyamide SK was synthesized and employed as a functional agent for PC. The results demonstrated that the SK significantly improved the fire safety of PC. 1.0 wt % SK endowed PC with a UL-94 V-0 rating and a limiting oxygen index of 30.4%; compared with that of neat PC, the maximum smoke density (Dsmax) and the peak of heat release rate (PHRR) for 1.0 wt % SK-blended PC were decreased by 21% and 39%, respectively. More importantly, the transparency of the original PC was maintained at 86.4% after incorporation of 1.0 wt % SK, showing only a slight reduction. Here, excellent flame retardancy is ascribed to the synergistic effect of SK-caused physical cross-linking and carbonization. While, high transparency is attributed to the amorphous nature of SK and its good compatibility with PC. This work demonstrates that SK is an efficient polymeric functional agent for fabricating transparent and flame-retardant PC and provides another idea for designing a sulfonate-group-containing flame retardant differing from traditional sulfonates for PC.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Sulfonate-Group-Containing Polymeric Polyamide for Simultaneous Transparency and Flame Retardancy of Polycarbonate

Chen

Zhao

et al. 2023

ACS Appl. Polym. Mater.

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“…This section summarizes the qualitative study of the flame-retardant property of the syntactic foams. However, some classic flame-retardant tests, such as limiting oxygen index, UL-94, cone calorimetry experiments, and so on, − can be performed to further quantify the flame-retardant properties in our future studies.…”

Section: Results and Discussionmentioning

confidence: 99%

A Thermoset Shape Memory Polymer-Based Syntactic Foam with Flame Retardancy and 3D Printability

Abedin

Feng

Ibekwe

et al. 2022

ACS Appl. Polym. Mater.

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Here we report a thermoset shape memory polymer-based syntactic foam inherently integrated with flame retardancy, good mechanical properties, excellent shape memory effect, and 3D printability. The syntactic foam is fabricated by incorporating a high-temperature shape memory polymer (HTSMP) as the matrix, with 40 vol % hollow glass microspheres (HGM) K20, K15, and K1 as fillers. Compressive behavior, strain-controlled programming followed by free recovery, stress recovery, and flame retardancy of these three syntactic foams were studied. Dynamic mechanical analysis and thermal characterization validate their high glass transition temperature ( T g = ∼250 °C) and excellent thermal stability. Our results suggest that the foam consisting of K20 HGM exhibits high compressive strength (81.8 MPa), high recovery stress (6.8 MPa), and excellent flame retardancy. Furthermore, this syntactic foam was used for three-dimensional (3D) printing by an extruder developed in our lab. Honeycomb, sinusoidal shapes, and free-standing helical spring were printed for demonstration. This high-temperature photopolymer-based syntactic foam integrated with high T g , flame retardancy, high recovery stress, and 3D printability can be beneficial in different sectors such as aerospace, construction, oil and gas, automotive, and electronic industries.

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“…12,13 Thus, the production of PET composites with high flame retardant performance will own immense potential in the application of multifunctional materials. 14,15 The halogen-free additives in polymer can bring higher flame retardant efficiency and low hidden danger. 16,17 It is found that phosphorus-based additives became currently the most promising environmental friendly and fruitful flame retardant, [18][19][20] especially, 9,10-dihydro-9-oxa-10-phosphophenanthrene-10-oxide (DOPO) is a phosphophenanthrene intermediate product, containing benzene ring and phenanthrene ring, due to its structure contains P-H bonds which has high reactivity to most unsaturated functional groups.…”

Section: Introductionmentioning

confidence: 99%

“…However, its inherent flammability and melting dripping cannot be ignored 12,13 . Thus, the production of PET composites with high flame retardant performance will own immense potential in the application of multifunctional materials 14,15 …”

Section: Introductionmentioning

confidence: 99%

The behavior and mechanism of tris‐(3‐dopo‐propyl)‐triazine trione flame retardant polyethylene terephthalate

Liu,

Xin,

et al. 2023

J of Applied Polymer Sci

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A 9,10-dihydro-9-oxa-10 phosphophenanthrene-10-oxide based derivative tris-(3-dopo-propyl)-triazine trione (TAD) is applied to polyethylene terephthalate (PET). The melting and blending process of the composite is carried out through twin screws. The flame retardancy, thermostability, and mechanical property have elevated with slight load agent. The limiting oxygen index (LOI), vertical burning test (UL 94), and cone calorimeter test are proceeded to sustain the flame retardancy of PET/TAD-x. The 30.2% LOI value and UL 94V-1 rating will be attained with 5 wt% load, the peak of heat release rate show 33.4% decrease, concurrently. The thermogravimetric analysis is performed to characterized the constancy of flame retardant composites during the heating process. Relevant evidence express that TAD provided appreciable assistance in improving carbon-forming capacity and postponing initial decomposition temperature. The Raman spectra, TG-Fourier transform infrared, Hot-Stage FTIR are used to explain the connection about the optimization of performance and the alteration of products in pyrolyzing or after pyrolyzation. In addition, the mechanical properties are supported via tensile and impact test. This study confirms TAD has great potential competitiveness in future halogen-free flame retardant applications as viable and environmentally friendly to polyester material.

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High-fire-safety thermoplastic polyester constructed by novel sulfonate with benzimidazole structure

Cited by 16 publications

References 39 publications

Sulfonate-Group-Containing Polymeric Polyamide for Simultaneous Transparency and Flame Retardancy of Polycarbonate

Sulfonate-Group-Containing Polymeric Polyamide for Simultaneous Transparency and Flame Retardancy of Polycarbonate

A Thermoset Shape Memory Polymer-Based Syntactic Foam with Flame Retardancy and 3D Printability

The behavior and mechanism of tris‐(3‐dopo‐propyl)‐triazine trione flame retardant polyethylene terephthalate

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