The effects of irradiation cross-linking on the thermal degradation and flame-retardant properties of the HDPE/EVA/magnesium hydroxide composites

Liu, Hui; Fang, Zhengping; Peng, Mao; Shen, Lie; Wang, Yongchang

doi:10.1016/j.radphyschem.2009.06.013

Cited by 69 publications

(44 citation statements)

References 18 publications

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“…These results confirm the studies of Murray et al 23 and Liu et al 26 All irradiated polyethylene samples showed an increase of the complex viscosity in the low-frequency region which indicates the crosslinking of the polymer. These results confirm the studies of Murray et al 23 and Liu et al 26 All irradiated polyethylene samples showed an increase of the complex viscosity in the low-frequency region which indicates the crosslinking of the polymer.…”

Section: Rheological Measurementssupporting

confidence: 92%

The effects of e‐beam crosslinking of LDPE on the permeation of hydrocarbons

Berger

Keimel

Helfer

et al. 2017

J of Applied Polymer Sci

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Polyethylene is a useful material in numerous applications, such as packaging, fuel tanks as well as oil and gas pipes. However, it must be considered that polyethylene is permeable to gases and liquids. Small molecules, such as hydrocarbons, may permeate through the material and cause environmental problems. Consequently, a particular aspect of polymer materials is the requirement of a high permeation resistance against low-molecular-weight hydrocarbons. Modifications of the commonly used polyethylene material are necessary to achieve adjusted permeation properties. In this contribution, the effect of electron-beam crosslinking of polyethylene on the resulting permeation characteristics was investigated. Polyethylene sheets were processed and crosslinked by irradiation with high energy electrons. The formation of a network structure was characterized by gel content determination and by rheological measurements. The permeation properties of the polymer sheets were assessed by a gravimetric method. It is demonstrated that-as a result of the crosslinking process-the permeation of low molecular weight hydrocarbon through polyethylene is reduced with respect to the chain length of the aliphatic substances.

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Section: Rheological Measurementssupporting

confidence: 92%

The effects of e‐beam crosslinking of LDPE on the permeation of hydrocarbons

Berger

Keimel

Helfer

et al. 2017

J of Applied Polymer Sci

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“…As fiber content increases, the viscosity of the polymer matrix increases, leading to the possibility of air entrapment in the matrix (although this possibility was ruled out in scanning electron micrographs). The voids in the matrix act as host for the water and chemical pockets in the composites thereby increasing the absorption values .…”

Section: Resultsmentioning

confidence: 91%

Reinforcement of irradiated waste polyamide/reclaimed rubber powder composites with glass fiber

et al. 2014

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This article presents a preliminary investigation on the effects of gamma radiation and incorporating glass fiber (GF) into recycled polyamide/waste rubber powder (50/50) on mechanical, thermal properties. The samples were characterized by mechanical and thermal behaviors of the composites in different proportions. The incorporation of GF was found to improve the elastic modulus, tensile, and thermal properties and also improved by irradiation. POLYM. COMPOS., 37:1539–1548, 2016. © 2014 Society of Plastics Engineers

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“…Polyethylene (PE) is one of the most widely used polymeric materials owing to its low cost, balanced mechanical properties, good processability, and so on . However, there are some disadvantages for PE, such as low environmental stress‐cracking resistance, poor compatibility with various additives, and so on, which have restricted its applications in some important fields .…”

Section: Introductionmentioning

confidence: 99%

Effect of the particle size of expandable graphite on the thermal stability, flammability, and mechanical properties of high-density polyethylene/ethylene vinyl-acetate/expandable graphite composites

Sun

et al. 2013

Polym Eng Sci

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In this article, high‐density polyethylene/ethylene vinyl‐acetate copolymer (HDPE/EVA) composites filled with two different particle sizes (45 and 150 µm) of expandable graphite (EG) were prepared by using a twin‐screw extruder. The thermal stability, flammability, and mechanical properties of HDPE/EVA/EG composites were investigated by thermogravimetric analysis (TGA), cone calorimeter test (CCT), tensile test, and scanning electron microscopy (SEM). The results from TGA and CCT indicated that EG significantly enhanced the thermal stability and fire resistance of HDPE/EVA blend. The thermal stability and flame retardancy of HDPE/EVA/EG composites were improved with decreasing particle size of EG. Although the onset of weight loss of the flame‐retardant composites occurred at a lower temperature than that of HDPE/EVA blend, the flame‐retardant composites produced a large amount of char residue at a high temperature. The consolidated char layer formed a barrier, which could reduce heat, low‐molecular transfer, and air incursion, and thus enhanced the flame retardancy. The data from the tensile test showed that the addition of EG deteriorated the mechanical properties; however, the tensile stress and strain of HDPE/EVA/EG composites increased with decreasing the particle size of EG owing to the strong interface adhesion between polymer matrix and inorganic particles. POLYM. ENG. SCI., 54:1162–1169, 2014. © 2013 Society of Plastics Engineers

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The effects of irradiation cross-linking on the thermal degradation and flame-retardant properties of the HDPE/EVA/magnesium hydroxide composites

Cited by 69 publications

References 18 publications

The effects of e‐beam crosslinking of LDPE on the permeation of hydrocarbons

The effects of e‐beam crosslinking of LDPE on the permeation of hydrocarbons

Reinforcement of irradiated waste polyamide/reclaimed rubber powder composites with glass fiber

Effect of the particle size of expandable graphite on the thermal stability, flammability, and mechanical properties of high-density polyethylene/ethylene vinyl-acetate/expandable graphite composites

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