On the structure of composites based on mixtures of boron polyoxides with polyethylene

Shaulov, A. Yu.; Aliev, I. I.; Lyumpanova, A. Yu.; Zarkhina, T. S.; Barashkova, I. I.; Vasserman, A. M.; Берлин, А. А.

doi:10.1134/s0012501607030062

Cited by 11 publications

(4 citation statements)

References 6 publications

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“…This corroborates the stability of BOOs. In contrast, boron anhydride (BO 1.5 ) n is characteristic of high hygroscopicity and its mixing with polyethylene results in formation of interphase layers consisting of the hydrolyzed products and water . No such effect was observed in BOO/LDPE composites.…”

Section: Resultsmentioning

confidence: 99%

“…The blends of inorganic and organic thermoplastics with the close flow temperatures show some pronounced advantages compared with blends of incompatible organic polymers or composites filled with solid particles . The mentioned composites are characteristic of a finer level of mixing up to the nanosizes depending on the nature of organic and inorganic components . The addition of boron polyoxides and polyphosphates results in a significant modification of the morphology of semicrystalline polyethylene , the coking of organic compounds , and an enhancement of their thermal stability .…”

Section: Introductionmentioning

confidence: 99%

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Abnormal mechanical properties of composites based on boron oxide oligomer/polyethylene blends

et al. 2018

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The mechanical properties of composites based on the inorganic boron oxide oligomer (BOO) and low-density polyethylene (LDPE) produced by extrusion and injection molding have been studied in the range of volume fractions of the inorganic component from 0 to 64 vol%. An abrupt increase in the Young's modulus and ultimate tensile strength of the composites in the vicinity of 30 vol% BOO has been found. These critical properties are accompanied by a stepwise decrease in the elongation at break at the same volume fraction of the inorganic component. The mechanical properties of BOO/LDPE composites were compared with the same characteristics of composites based on LDPE and polymethyl methacrylate prepared via a similar way. The electron microscopic examination has suggested that the abnormal concentration dependences of the Young's modulus, tensile strength, and elongation at break of BOO/LDPE composites are conditioned by the formation of the unidirectional microfibers of the inorganic oligomer as soon as its volume fraction exceeds the critical threshold. POLYM. COMPOS., 00:000-000, 2018. FIG. 3. Thermomechanical curves of BOO/LDPE blends:(1) 0/100, (2) 100/0, (3) 5/95, (4) 10/90, (5) 15/85, (6) 23/77, and (7) 40/60.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Abnormal mechanical properties of composites based on boron oxide oligomer/polyethylene blends

et al. 2018

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“…In this last case, poly(vinylidenedifluoride) was blended with oxyfluoride providing a composite with a limited drop of the elongation at break and increase Young’s modulus compared to the neat polymer appearing suitable, but the thermal resistance of the composite was not evaluated [ 7 ]. It was explained that the ability of the polyoxides and thermoplastic matrix to pass into a highly elastic state during an extrusion process is accompanied with a nano- and molecular-level of mixing between the two components [ 8 , 9 ]. Accordingly, the resulting composites were proved to exhibit a high degree of filling (the model of “softening filler”) and a regulation of the crystallinity, supramolecular structure [ 5 ], and rheological properties [ 10 , 11 , 12 ].…”

Section: Introductionmentioning

confidence: 99%

Heat-Resistant Polymer Composites Based on Ethylene Tetrafluoroethylene Mixed with Inorganic Polyoxides

et al. 2021

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This pilot study aimed at investigating an alternative to irradiation-crosslinking to increase the structural stability of ethylene tetrafluoroethylene (ETFE), by mixing this polymer matrix with polyoxides. The latter consisted of aluminum polyphosphate (AP) having a flow temperature near to that of ETFE to facilitate melt-mixing by extrusion, and rigid fillers of metakaolin (MK). It was found that the ETFE/AP/MK composite with the formulation 60/20/20 (wt %) exhibited the most relevant properties. Indeed, when comparing this composite with neat ETFE, the structural stability was improved until 120 °C, the onset temperature of degradation passed from 381.5 to 459.4 °C, the elastic modulus evolved from 0.4 GPa to 1.6 GPa, and the tensile strength increased from 23 to 27 MPa. The results were briefly discussed based on a potential interaction between the polyoxides and the polymer matrix and synergistic effect between the two polyoxides.

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“…The potential of solving the above problem is indicated by the possibility of selection of appropriate “low melting point” oxyfluorides . Mixtures of this type, obtained using the “low‐melting” polymers exhibit a number of advantages: the ability to obtain composite materials with high degrees of filling by inorganic components, avoiding appropriate rheological problems ; to reach nano‐ and molecular mixing of components ; purposefully to adjust crystallinity and supramolecular structure of composites, including the formation of the fibers ; to reduce the flammability of materials; and to carry out the chemical reactions between the polymers.…”

Section: Introductionmentioning

confidence: 99%

Composite material based on fluoroplast and low melting oxyfluoride glass

Ignatieva

Савченко

Lalayan

et al. 2017

Polymer Engineering & Sci

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The results of studies of the samples fabricated through extrusion blending of mixtures composed of the polymer polyvinylidene fluoride and the inorganic glass of 3B2O3‐97(40SnF2‐30SnO‐30P2O5) are summarized. The composite material whose structure depends on the component ratio in the mixture (from individual areas formed by each component to homogeneously distributed composite particles) has been fabricated. The peculiarities of formation of composites were studied based on the study of their morphology, molecular structure and phase composition. The organic and inorganic components do not interact with each other at the molecular level. The glass crystallizes during formation of the composite. With the increasing amount of crystals, the monolithic polymer is broken; at a certain ratio of the components, there is inversion: the polymer particles are arranged between the crystals of inorganic component, mixing with them, and covering them. The temperature of composite melting is determined by polymer melting. POLYM. ENG. SCI., 57:566–569, 2017. © 2017 Society of Plastics Engineers

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On the structure of composites based on mixtures of boron polyoxides with polyethylene

Cited by 11 publications

References 6 publications

Abnormal mechanical properties of composites based on boron oxide oligomer/polyethylene blends

Abnormal mechanical properties of composites based on boron oxide oligomer/polyethylene blends

Heat-Resistant Polymer Composites Based on Ethylene Tetrafluoroethylene Mixed with Inorganic Polyoxides

Composite material based on fluoroplast and low melting oxyfluoride glass

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