Coupling Agents: Basics and Classifications

Shokoohi, Shirin; Ahmad, A.L.

doi:10.1002/9781118097298.weoc057

Cited by 2 publications

(3 citation statements)

References 56 publications

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“…lists the surface tensions of PP, PA6 and CB at 230°C which are available in the literature[23,24]. The interfacial tensions between the different blend components can be calculated based on equations (3.2) and (3.3), and the results are shown in table 2.…”

mentioning

confidence: 99%

Effect of polyamide 6 on the morphology and electrical conductivity of carbon black-filled polypropylene composites

Zhang¹,

Liu²,

Wang³

et al. 2017

R. Soc. open sci.

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Carbon black (CB)-filled polypropylene (PP) with surface resistivity between 106 and 109 Ω sq−1 is the ideal antistatic plastic material in the electronics and electric industry. However, a large amount of CB may have an adverse effect on the mechanical properties and processing performance of the material, thus an improved ternary system is developed. Blends of CB-filled PP and polyamide 6 (PA6) have been prepared by melt blending in order to obtain electrically conductive polymer composites with a low electrical percolation threshold based on the concept of double percolation. The morphological developments of these composites were studied by scanning electron microscopy. The results showed that CB particles were selectively dispersed in PA6 phases due to the good interaction and interfacial adhesion between CB and PA6. At the same CB loadings, the surface resistivity of PP/PA6/CB composite was smaller than that of PP/CB composite system, which indicated the better conductivity in the former composite. The increasing amount of PA6 in the composites changed the morphology from a typical sea–island morphology to a co-continuous morphology. What is more, with 8 wt% of CB and PP/PA6 phase ratio of 70/30 in which the PP and PA6 phases formed a co-continuous structure, the electrical conductivity of the composite peaked at 2.01 × 105 Ω sq−1.

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confidence: 99%

Effect of polyamide 6 on the morphology and electrical conductivity of carbon black-filled polypropylene composites

Zhang¹,

Liu²,

Wang³

et al. 2017

R. Soc. open sci.

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“…It is known that this discreteness can be overcome by applying appropriate silane-based coupling agents and optimal FFF parameters. 26,27 On the other hand, the flexural modulus of the HGBs-filled composite specimens was slightly higher than the neat ABS one. This may be due to the high stiffness of the HGBs.…”

Section: Discussionmentioning

confidence: 86%

“…In the HGBs-filled composite specimens, the bonding strengths of the interacting functional groups of the neat ABS and HGBs could become relatively weak due to their different thermal expansion rates, and as a result, the flexural strength values could be decreased. 26,27 In addition, as shown in Figure 3(b), the S28HS-filled composite specimen has a lower flexural strength than the iM16K-filled specimen. In this study, the same weight fraction (5 wt%) of HGBs was applied in both cases of S28HS and iM16K-filled composite filaments.…”

Section: Physical Propertiesmentioning

confidence: 96%

Fabrication and characterization of hollow glass beads-filled thermoplastic composite filament developed for material extrusion additive manufacturing

Kim

Lee

et al. 2019

Journal of Composite Materials

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This paper explores the characteristics of a new lightweight thermoplastic composite filament filled with hollow glass beads developed for material extrusion additive manufacturing. Compounding experiments, which mix hollow glass beads with neat acrylonitrile butadiene styrene matrix, were conducted using a twin-screw extruder to prepare composite filaments. Two different types of hollow glass beads were selected as the fillers of composite filament due to their varying densities. In order to characterize the final components produced using composite filament, various specimens were fabricated by a material extrusion additive manufacturing process. In order to characterize the physical properties of the specimens, measurements of density and flexural testing were performed. To identify the thermomechanical effects of hollow glass beads on the neat acrylonitrile butadiene styrene matrix, thermal diffusivity and specific heat were obtained. Consequently, the thermal conductivity of the specimen was derived from its density, thermal diffusivity, and specific heat capacity. The microstructures of the fractured interfaces of the specimens were also observed by scanning electron microscopy. The experimental results revealed that most of the hollow glass beads survived, thus bringing about lighter weight (lower density) and thermal insulation (lower thermal conductivity), which can be useful for numerous potential applications.

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Coupling Agents: Basics and Classifications

Cited by 2 publications

References 56 publications

Effect of polyamide 6 on the morphology and electrical conductivity of carbon black-filled polypropylene composites

Effect of polyamide 6 on the morphology and electrical conductivity of carbon black-filled polypropylene composites

Fabrication and characterization of hollow glass beads-filled thermoplastic composite filament developed for material extrusion additive manufacturing

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