Preparation of MCA-SiO2 and Its Flame Retardant Effects on Glass Fiber Reinforced Polypropylene

Xu, Jiayou; Li, Kaidan; Deng, Haiming; Lv, Shu; Fang, Pengkai; Liu, Hu; Shao, Qian; Guo, Zhanhu

doi:10.1007/s12221-019-8284-6

Cited by 24 publications

(8 citation statements)

References 25 publications

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“…As a structural material, RPUF is required to have a certain strength, toughness, and heat resistance. Normal RPUF cannot be used in many special workplaces, because their mechanical properties and flame retardant properties do not meet the requirements . So, it is necessary to strengthen the RPUF …”

Section: Introductionmentioning

confidence: 99%

Effects of flame‐retardant ramie fiber on enhancing performance of the rigid polyurethane foams

Cheng

Wang

et al. 2019

Polymers for Advanced Techs

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Ramie fiber (RF) with excellent tensile strength was treated by a flame retardant and obtained the modified RF (MRF) that is incombustible. Then, MRF was used to improve the performance of rigid polyurethane foams (RPUF). The mechanical properties of the composite were investigated by compressive strength test and shear stress test. The fire characteristics were studied using a cone calorimeter. And the thermal decomposition and flammable properties were further evaluated using thermogravimetric analysis and limiting oxygen index. The results showed that MRF improve the mechanical properties of RPUF and eliminate the harm of flammability of RF on the RPUF.

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Section: Introductionmentioning

confidence: 99%

Effects of flame‐retardant ramie fiber on enhancing performance of the rigid polyurethane foams

Cheng

Wang

et al. 2019

Polymers for Advanced Techs

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“…To enhance the thermal conductivity, the traditional highly thermally conductive fillers (~5000 Wm −1 K −1 ) such as aluminum oxide, whiskers, nanosilica, and aluminum nitride are generally incorporated into the polymeric material. However, the high loading amount (about 30%‐60% by volume) is required to fulfill the thermal conductivity (>1 Wm −1 K −1 ).…”

Section: Introductionmentioning

confidence: 99%

Simultaneously improving the thermal conductive and flame retardant performance for epoxy resins thermosets by constructing core‐shell‐brush structure and distributing of MWCNTs in brush intervals

Leng

Sun

et al. 2019

Polymers for Advanced Techs

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Fire safety and thermal dissipation performance of epoxy resins thermosets were critical for its application in key fields such as electronic devices. The simultaneous improvement of flame retardant and thermal conductivity properties were still a challenge. Herein, ammonium polyphosphate (APP) was firstly encapsulated with 5-wt% epoxy resins based on APP and then surface grafted with polyurethane polymer chain, and the resulting APP with core-shell-brush structure was constructed. Finally, the multiwalled carbon nanotube (MWCNT) was assembled in the intervals of polymer brush on APP surface, and the prepared filler was defined as MF-APP. Its chemical structure and morphologies were characterized and confirmed. The wettability of MF-APP was evaluated by water contact angles tests (WCA) and MF-APP exhibited hydrophobic property with the WCA of 138°. When 9-wt% MF-APP was incorporated into EP thermosets, the thermal conductive value of EP/MF-APP achieved 1.02 Wm −1 K −1 , and the MWCNTs concentration was only 1.8 wt% in thermosets.Compared with the previous work, the prepared EP/MF-APP thermosets exhibited outstanding thermal conductive efficiency because of the homogeneously distribution of MWCNTs. Moreover, the samples fulfilled UL-94 V-0 grade during vertical burning tests with the limiting oxygen index of 30.8%. As a result, the thermal conductivity and flame retardancy of EP thermosets were simultaneously enhanced with a relatively low addition amount of MF-APP, which would bring more chance for wider application of EP thermosets in key fields. KEYWORDS core-shell-brush structure, epoxy resin, flame retardancy, thermal conductivity 1 | INTRODUCTION Epoxy resin (EP) has been widely used in electronic and electrical industries, especially in printed circuit board (PCB) because of its exciting properties such as corrosion resistance, electrical insulation, and high strength. 1-3 With the development of electronic devices toward miniaturization and integration, a large number of heat fluxes in electronic equipment are generated during operation process. It is crucial for the devices that the produced heat can be effectively dissipated. However, EP thermosets exhibit low intrinsic thermal conductivity of 0.1 to 0.4 Wm −1 K −1 . 4-6 Besides, the fire risk is a significant drawback of the EP thermosets. Considering the public safety and the requirement of electronic devices, the simultaneous improvement of thermal conductivity and flame retardancy for the EPs thermosets is becoming an urgent problem and has attracted a lot of attention over the years.To enhance the thermal conductivity, the traditional highly thermally conductive fillers (~5000 Wm −1 K −1 ) such as aluminum oxide, 7,8 whiskers, 9 nanosilica, 10 and aluminum nitride 11 are generally incorporated into the polymeric material. However, the high loading amount (about 30%-60% by volume) is required to fulfill the thermal conductivity (>1 Wm −1 K −1 ). Besides, the high addition amount of filler would deteriorate the processing and the mechanical properties...

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“…However, most polymers do not have flame retardancy, and there is a fire risk during actual use. Fortunately, a large number of studies have proved that adding flame retardants to polymers is an effective way to improve the fire safety of polymeric materials (Shang et al, 2018 ; Xu et al, 2019 ; Zhang Q. et al, 2019 ). Therefore, the performance of flame retardants directly determines the application and development of polymer materials.…”

Section: Introductionmentioning

confidence: 99%

Polydopamine-Bridged Synthesis of Ternary h-BN@PDA@TiO2 as Nanoenhancers for Thermal Conductivity and Flame Retardant of Polyvinyl Alcohol

Wang

2020

Front. Chem.

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In this study, h-BN@PDA@TiO 2 hybrid nanoparticles were prepared and used as functional fillers to prepare PVA nanocomposites, and the effects of hybrid particles on PVA thermal conductivity and flame retardant properties were studied. The results showed that hybrid particles could significantly improve the thermal conductivity and flame retardant performance of PVA composites, and effectively inhibit the release of toxic gases such as combustible pyrolysis products and CO, which enhanced the fire safety of PVA composites. When the addition amount of hybrid particles is 5 wt%, the thermal conductivity of PVA composites is 239.1% higher than that of the pure PVA and the corresponding temperature of PVA composites with a mass loss of 5 wt% was 16.2°C higher than that of the pure PVA. This is due to the barrier effect of h-BN and the protective effect of dense carbon layer catalyzed by TiO 2 .

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Preparation of MCA-SiO2 and Its Flame Retardant Effects on Glass Fiber Reinforced Polypropylene

Cited by 24 publications

References 25 publications

Effects of flame‐retardant ramie fiber on enhancing performance of the rigid polyurethane foams

Effects of flame‐retardant ramie fiber on enhancing performance of the rigid polyurethane foams

Simultaneously improving the thermal conductive and flame retardant performance for epoxy resins thermosets by constructing core‐shell‐brush structure and distributing of MWCNTs in brush intervals

Polydopamine-Bridged Synthesis of Ternary h-BN@PDA@TiO2 as Nanoenhancers for Thermal Conductivity and Flame Retardant of Polyvinyl Alcohol

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