The Experts below are selected from a list of 5529 Experts worldwide ranked by ideXlab platform
Yuan Hu - One of the best experts on this subject based on the ideXlab platform.
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influence of Ammonium Polyphosphate microencapsulation on flame retardancy thermal degradation and crystal structure of polypropylene composite
Composites Science and Technology, 2013Co-Authors: Kun Wu, Yankui Zhang, Wenguang Hu, Jintian Lian, Yuan HuAbstract:Abstract Microencapsulated Ammonium Polyphosphate (EPAPP) with shell of epoxy resin (EP) is prepared by in situ polymerization. EP is hydrophobic, so EPAPP has better water resistance and compatibility in polypropylene (PP) composite compared with Ammonium Polyphosphate (APP). Due to the reaction between APP and EP under heating, EPAPP can form a residue char with good thermal stability which prevents underlying materials from further destruction during a fire. Because of the interaction and alignment of the PP polymer chains at the surface of additives, microencapsulation affects the crystal structure and spherulitic morphology of PP composite remarkably. PP/EPAPP did not show characteristic peaks for β-form crystal, while APP could act as an effective β-nucleating agent in PP.
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microencapsulated Ammonium Polyphosphate with glycidyl methacrylate shell application to flame retardant epoxy resin
Industrial & Engineering Chemistry Research, 2013Co-Authors: Qinbo Tang, Bibo Wang, Lei Song, Yuan HuAbstract:A new microcapsule containing Ammonium Polyphosphate (APP) and glycidyl methacrylate (GMA) as core and shell material was synthesized by in situ polymerization technology. The structure and performance of microencapsulated Ammonium Polyphosphate (MCAPP) were characterized by Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), and water contact angle (WCA). The flame retardation of MCAPP and APP flame retarded epoxy resin (EP) composites were studied by limiting oxygen index (LOI), UL-94 test, and cone calorimeter. The results indicated that the microencapsulation of APP with the GMA led to an improvement of the hydrophobicity. Results also revealed that the flame retardancy of the EP/MCAPP composite was better than that of the EP/APP composite at the same additive loading. Moreover, the EP/MCAPP demonstrated better thermal stability, due to the stable char forming by APP and GMA shell and the better dispersion of MCAPP in the EP matrix.
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effect of cellulose acetate butyrate microencapsulated Ammonium Polyphosphate on the flame retardancy mechanical electrical and thermal properties of intumescent flame retardant ethylene vinyl acetate copolymer microencapsulated Ammonium polyphosphat
ACS Applied Materials & Interfaces, 2011Co-Authors: Bibo Wang, Yongqian Shi, Qinbo Tang, Ningning Hong, Lei Song, Lei Wang, Yuan HuAbstract:Ammonium Polyphosphate (APP), a widely used intumescent flame retardant, has been microencapsulated by cellulose acetate butyrate with the aim of enhancing the water resistance of APP and the compatibility between the ethylene–vinyl acetate copolymer (EVA) matrix and APP. The structure of microencapsulated Ammonium Polyphosphate (MCAPP) was characterized by Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), and water contact angle (WCA). The flame retadancy and thermal stability were investigated by a limiting oxygen index (LOI) test, UL-94 test, cone calorimeter, and thermogravimetric analysis (TGA). The WCA results indicated that MCAPP has excellent water resistance and hydrophobicity. The results demonstrated that MCAPP enhanced interfacial adhesion, mechanical, electrical, and thermal stability of the EVA/MCAPP/polyamide-6 (PA-6) system. The microencapsulation not only imparted EVA/MCAPP/PA-6 with a higher LOI value and UL-94 rat...
Bibo Wang - One of the best experts on this subject based on the ideXlab platform.
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Effect carbon black microencapsulated Ammonium Polyphosphate on the flame retardancy and mechanical properties of polyurethane composites
Polymer-Plastics Technology and Materials, 2019Co-Authors: Min Zhu, Yan Zhang, Haibo Sheng, Bibo WangAbstract:Carbon black microencapsulated Ammonium Polyphosphate (APP@CB) was synthesized to enhance the interfacial compatibility, mechanical property and flame retardancy of polyurethane (TPU). The chemical...
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microencapsulated Ammonium Polyphosphate with glycidyl methacrylate shell application to flame retardant epoxy resin
Industrial & Engineering Chemistry Research, 2013Co-Authors: Qinbo Tang, Bibo Wang, Lei Song, Yuan HuAbstract:A new microcapsule containing Ammonium Polyphosphate (APP) and glycidyl methacrylate (GMA) as core and shell material was synthesized by in situ polymerization technology. The structure and performance of microencapsulated Ammonium Polyphosphate (MCAPP) were characterized by Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), and water contact angle (WCA). The flame retardation of MCAPP and APP flame retarded epoxy resin (EP) composites were studied by limiting oxygen index (LOI), UL-94 test, and cone calorimeter. The results indicated that the microencapsulation of APP with the GMA led to an improvement of the hydrophobicity. Results also revealed that the flame retardancy of the EP/MCAPP composite was better than that of the EP/APP composite at the same additive loading. Moreover, the EP/MCAPP demonstrated better thermal stability, due to the stable char forming by APP and GMA shell and the better dispersion of MCAPP in the EP matrix.
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effect of cellulose acetate butyrate microencapsulated Ammonium Polyphosphate on the flame retardancy mechanical electrical and thermal properties of intumescent flame retardant ethylene vinyl acetate copolymer microencapsulated Ammonium polyphosphat
ACS Applied Materials & Interfaces, 2011Co-Authors: Bibo Wang, Yongqian Shi, Qinbo Tang, Ningning Hong, Lei Song, Lei Wang, Yuan HuAbstract:Ammonium Polyphosphate (APP), a widely used intumescent flame retardant, has been microencapsulated by cellulose acetate butyrate with the aim of enhancing the water resistance of APP and the compatibility between the ethylene–vinyl acetate copolymer (EVA) matrix and APP. The structure of microencapsulated Ammonium Polyphosphate (MCAPP) was characterized by Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), and water contact angle (WCA). The flame retadancy and thermal stability were investigated by a limiting oxygen index (LOI) test, UL-94 test, cone calorimeter, and thermogravimetric analysis (TGA). The WCA results indicated that MCAPP has excellent water resistance and hydrophobicity. The results demonstrated that MCAPP enhanced interfacial adhesion, mechanical, electrical, and thermal stability of the EVA/MCAPP/polyamide-6 (PA-6) system. The microencapsulation not only imparted EVA/MCAPP/PA-6 with a higher LOI value and UL-94 rat...
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effect of cellulose acetate butyrate microencapsulated Ammonium Polyphosphate on the flame retardancy mechanical electrical and thermal properties of intumescent flame retardant ethylene vinyl acetate copolymer microencapsulated Ammonium polyphosphat
ACS Applied Materials & Interfaces, 2011Co-Authors: Bibo Wang, Qinbo Tang, Ningning Hong, Lei Song, Lei Wang, Yongqian ShiAbstract:Ammonium Polyphosphate (APP), a widely used intumescent flame retardant, has been microencapsulated by cellulose acetate butyrate with the aim of enhancing the water resistance of APP and the compatibility between the ethylene-vinyl acetate copolymer (EVA) matrix and APP. The structure of microencapsulated Ammonium Polyphosphate (MCAPP) was characterized by Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), and water contact angle (WCA). The flame retadancy and thermal stability were investigated by a limiting oxygen index (LOI) test, UL-94 test, cone calorimeter, and thermogravimetric analysis (TGA). The WCA results indicated that MCAPP has excellent water resistance and hydrophobicity. The results demonstrated that MCAPP enhanced interfacial adhesion, mechanical, electrical, and thermal stability of the EVA/MCAPP/polyamide-6 (PA-6) system. The microencapsulation not only imparted EVA/MCAPP/PA-6 with a higher LOI value and UL-94 rating but also could significantly improve the fire safety. Furthermore, the microencapsulated EVA/MCAPP/PA-6 composites can still pass the UL-94 V-0 rating after treatment with water for 3 days at 70 °C, indicating excellent water resistance. This investigation provides a promising formulation for the intumescent flame retardant EVA with excellent properties.
Yongqian Shi - One of the best experts on this subject based on the ideXlab platform.
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effect of cellulose acetate butyrate microencapsulated Ammonium Polyphosphate on the flame retardancy mechanical electrical and thermal properties of intumescent flame retardant ethylene vinyl acetate copolymer microencapsulated Ammonium polyphosphat
ACS Applied Materials & Interfaces, 2011Co-Authors: Bibo Wang, Yongqian Shi, Qinbo Tang, Ningning Hong, Lei Song, Lei Wang, Yuan HuAbstract:Ammonium Polyphosphate (APP), a widely used intumescent flame retardant, has been microencapsulated by cellulose acetate butyrate with the aim of enhancing the water resistance of APP and the compatibility between the ethylene–vinyl acetate copolymer (EVA) matrix and APP. The structure of microencapsulated Ammonium Polyphosphate (MCAPP) was characterized by Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), and water contact angle (WCA). The flame retadancy and thermal stability were investigated by a limiting oxygen index (LOI) test, UL-94 test, cone calorimeter, and thermogravimetric analysis (TGA). The WCA results indicated that MCAPP has excellent water resistance and hydrophobicity. The results demonstrated that MCAPP enhanced interfacial adhesion, mechanical, electrical, and thermal stability of the EVA/MCAPP/polyamide-6 (PA-6) system. The microencapsulation not only imparted EVA/MCAPP/PA-6 with a higher LOI value and UL-94 rat...
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effect of cellulose acetate butyrate microencapsulated Ammonium Polyphosphate on the flame retardancy mechanical electrical and thermal properties of intumescent flame retardant ethylene vinyl acetate copolymer microencapsulated Ammonium polyphosphat
ACS Applied Materials & Interfaces, 2011Co-Authors: Bibo Wang, Qinbo Tang, Ningning Hong, Lei Song, Lei Wang, Yongqian ShiAbstract:Ammonium Polyphosphate (APP), a widely used intumescent flame retardant, has been microencapsulated by cellulose acetate butyrate with the aim of enhancing the water resistance of APP and the compatibility between the ethylene-vinyl acetate copolymer (EVA) matrix and APP. The structure of microencapsulated Ammonium Polyphosphate (MCAPP) was characterized by Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), and water contact angle (WCA). The flame retadancy and thermal stability were investigated by a limiting oxygen index (LOI) test, UL-94 test, cone calorimeter, and thermogravimetric analysis (TGA). The WCA results indicated that MCAPP has excellent water resistance and hydrophobicity. The results demonstrated that MCAPP enhanced interfacial adhesion, mechanical, electrical, and thermal stability of the EVA/MCAPP/polyamide-6 (PA-6) system. The microencapsulation not only imparted EVA/MCAPP/PA-6 with a higher LOI value and UL-94 rating but also could significantly improve the fire safety. Furthermore, the microencapsulated EVA/MCAPP/PA-6 composites can still pass the UL-94 V-0 rating after treatment with water for 3 days at 70 °C, indicating excellent water resistance. This investigation provides a promising formulation for the intumescent flame retardant EVA with excellent properties.
Qinbo Tang - One of the best experts on this subject based on the ideXlab platform.
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microencapsulated Ammonium Polyphosphate with glycidyl methacrylate shell application to flame retardant epoxy resin
Industrial & Engineering Chemistry Research, 2013Co-Authors: Qinbo Tang, Bibo Wang, Lei Song, Yuan HuAbstract:A new microcapsule containing Ammonium Polyphosphate (APP) and glycidyl methacrylate (GMA) as core and shell material was synthesized by in situ polymerization technology. The structure and performance of microencapsulated Ammonium Polyphosphate (MCAPP) were characterized by Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), and water contact angle (WCA). The flame retardation of MCAPP and APP flame retarded epoxy resin (EP) composites were studied by limiting oxygen index (LOI), UL-94 test, and cone calorimeter. The results indicated that the microencapsulation of APP with the GMA led to an improvement of the hydrophobicity. Results also revealed that the flame retardancy of the EP/MCAPP composite was better than that of the EP/APP composite at the same additive loading. Moreover, the EP/MCAPP demonstrated better thermal stability, due to the stable char forming by APP and GMA shell and the better dispersion of MCAPP in the EP matrix.
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effect of cellulose acetate butyrate microencapsulated Ammonium Polyphosphate on the flame retardancy mechanical electrical and thermal properties of intumescent flame retardant ethylene vinyl acetate copolymer microencapsulated Ammonium polyphosphat
ACS Applied Materials & Interfaces, 2011Co-Authors: Bibo Wang, Yongqian Shi, Qinbo Tang, Ningning Hong, Lei Song, Lei Wang, Yuan HuAbstract:Ammonium Polyphosphate (APP), a widely used intumescent flame retardant, has been microencapsulated by cellulose acetate butyrate with the aim of enhancing the water resistance of APP and the compatibility between the ethylene–vinyl acetate copolymer (EVA) matrix and APP. The structure of microencapsulated Ammonium Polyphosphate (MCAPP) was characterized by Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), and water contact angle (WCA). The flame retadancy and thermal stability were investigated by a limiting oxygen index (LOI) test, UL-94 test, cone calorimeter, and thermogravimetric analysis (TGA). The WCA results indicated that MCAPP has excellent water resistance and hydrophobicity. The results demonstrated that MCAPP enhanced interfacial adhesion, mechanical, electrical, and thermal stability of the EVA/MCAPP/polyamide-6 (PA-6) system. The microencapsulation not only imparted EVA/MCAPP/PA-6 with a higher LOI value and UL-94 rat...
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effect of cellulose acetate butyrate microencapsulated Ammonium Polyphosphate on the flame retardancy mechanical electrical and thermal properties of intumescent flame retardant ethylene vinyl acetate copolymer microencapsulated Ammonium polyphosphat
ACS Applied Materials & Interfaces, 2011Co-Authors: Bibo Wang, Qinbo Tang, Ningning Hong, Lei Song, Lei Wang, Yongqian ShiAbstract:Ammonium Polyphosphate (APP), a widely used intumescent flame retardant, has been microencapsulated by cellulose acetate butyrate with the aim of enhancing the water resistance of APP and the compatibility between the ethylene-vinyl acetate copolymer (EVA) matrix and APP. The structure of microencapsulated Ammonium Polyphosphate (MCAPP) was characterized by Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), and water contact angle (WCA). The flame retadancy and thermal stability were investigated by a limiting oxygen index (LOI) test, UL-94 test, cone calorimeter, and thermogravimetric analysis (TGA). The WCA results indicated that MCAPP has excellent water resistance and hydrophobicity. The results demonstrated that MCAPP enhanced interfacial adhesion, mechanical, electrical, and thermal stability of the EVA/MCAPP/polyamide-6 (PA-6) system. The microencapsulation not only imparted EVA/MCAPP/PA-6 with a higher LOI value and UL-94 rating but also could significantly improve the fire safety. Furthermore, the microencapsulated EVA/MCAPP/PA-6 composites can still pass the UL-94 V-0 rating after treatment with water for 3 days at 70 °C, indicating excellent water resistance. This investigation provides a promising formulation for the intumescent flame retardant EVA with excellent properties.
Lei Song - One of the best experts on this subject based on the ideXlab platform.
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microencapsulated Ammonium Polyphosphate with glycidyl methacrylate shell application to flame retardant epoxy resin
Industrial & Engineering Chemistry Research, 2013Co-Authors: Qinbo Tang, Bibo Wang, Lei Song, Yuan HuAbstract:A new microcapsule containing Ammonium Polyphosphate (APP) and glycidyl methacrylate (GMA) as core and shell material was synthesized by in situ polymerization technology. The structure and performance of microencapsulated Ammonium Polyphosphate (MCAPP) were characterized by Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), and water contact angle (WCA). The flame retardation of MCAPP and APP flame retarded epoxy resin (EP) composites were studied by limiting oxygen index (LOI), UL-94 test, and cone calorimeter. The results indicated that the microencapsulation of APP with the GMA led to an improvement of the hydrophobicity. Results also revealed that the flame retardancy of the EP/MCAPP composite was better than that of the EP/APP composite at the same additive loading. Moreover, the EP/MCAPP demonstrated better thermal stability, due to the stable char forming by APP and GMA shell and the better dispersion of MCAPP in the EP matrix.
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effect of cellulose acetate butyrate microencapsulated Ammonium Polyphosphate on the flame retardancy mechanical electrical and thermal properties of intumescent flame retardant ethylene vinyl acetate copolymer microencapsulated Ammonium polyphosphat
ACS Applied Materials & Interfaces, 2011Co-Authors: Bibo Wang, Yongqian Shi, Qinbo Tang, Ningning Hong, Lei Song, Lei Wang, Yuan HuAbstract:Ammonium Polyphosphate (APP), a widely used intumescent flame retardant, has been microencapsulated by cellulose acetate butyrate with the aim of enhancing the water resistance of APP and the compatibility between the ethylene–vinyl acetate copolymer (EVA) matrix and APP. The structure of microencapsulated Ammonium Polyphosphate (MCAPP) was characterized by Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), and water contact angle (WCA). The flame retadancy and thermal stability were investigated by a limiting oxygen index (LOI) test, UL-94 test, cone calorimeter, and thermogravimetric analysis (TGA). The WCA results indicated that MCAPP has excellent water resistance and hydrophobicity. The results demonstrated that MCAPP enhanced interfacial adhesion, mechanical, electrical, and thermal stability of the EVA/MCAPP/polyamide-6 (PA-6) system. The microencapsulation not only imparted EVA/MCAPP/PA-6 with a higher LOI value and UL-94 rat...
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effect of cellulose acetate butyrate microencapsulated Ammonium Polyphosphate on the flame retardancy mechanical electrical and thermal properties of intumescent flame retardant ethylene vinyl acetate copolymer microencapsulated Ammonium polyphosphat
ACS Applied Materials & Interfaces, 2011Co-Authors: Bibo Wang, Qinbo Tang, Ningning Hong, Lei Song, Lei Wang, Yongqian ShiAbstract:Ammonium Polyphosphate (APP), a widely used intumescent flame retardant, has been microencapsulated by cellulose acetate butyrate with the aim of enhancing the water resistance of APP and the compatibility between the ethylene-vinyl acetate copolymer (EVA) matrix and APP. The structure of microencapsulated Ammonium Polyphosphate (MCAPP) was characterized by Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), and water contact angle (WCA). The flame retadancy and thermal stability were investigated by a limiting oxygen index (LOI) test, UL-94 test, cone calorimeter, and thermogravimetric analysis (TGA). The WCA results indicated that MCAPP has excellent water resistance and hydrophobicity. The results demonstrated that MCAPP enhanced interfacial adhesion, mechanical, electrical, and thermal stability of the EVA/MCAPP/polyamide-6 (PA-6) system. The microencapsulation not only imparted EVA/MCAPP/PA-6 with a higher LOI value and UL-94 rating but also could significantly improve the fire safety. Furthermore, the microencapsulated EVA/MCAPP/PA-6 composites can still pass the UL-94 V-0 rating after treatment with water for 3 days at 70 °C, indicating excellent water resistance. This investigation provides a promising formulation for the intumescent flame retardant EVA with excellent properties.
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Flame retardancy mechanisms of poly(1,4‐butylene terephthalate) containing microencapsulated Ammonium Polyphosphate and melamine cyanurate
Polymers for Advanced Technologies, 2010Co-Authors: Wei Yang, Lei Song, Qilong Tai, Zhihua Qiao, Richard K.k. YuenAbstract:The flame retardancy mechanisms of poly(1,4-butylene terephthalate) (PBT) containing microencapsulated Ammonium Polyphosphate (MAPP) and melamine cyanurate (MC) were investigated via pyrolysis analysis (thermogravimetric analysis (TGA), real-time Fourier transform infrared (FTIR), TG-IR), cone calorimeter test, combustion tests (limited oxygen index (LOI), UL-94), and residue analysis (scanning electron microscopy (SEM)). A loading of 20 wt% MC to PBT gave the PBT composites an LOI of 26%, V-2 classification in UL-94 test and a high peak heat release rate (HRR) in cone calorimeter test. Adding APP to PBT/MC composites did not improve their flame retardancy. In comparison with the addition of Ammonium Polyphosphate (APP) to PBT, MAPP with silica gel shell and MAPP with polyurethane shell both promoted the intumescent char-forming and improved the flame retardancy of PBT through different mechanisms in the presence of MC. These two halogen-free PBT composites with V-0 classification according to UL-94 test were obtained; their LOI were 32 and 33%, respectively. Copyright © 2010 John Wiley & Sons, Ltd.