G-Plus report to Owens Corning-thermal conductivity Measurements of Fiberglass

Wang, H

doi:10.2172/885664

Cited by 4 publications

(3 citation statements)

References 3 publications

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“…Table 1 summarizes the material properties of individual phases that constitute the composite. [19][20][21][22][23][24][25] It is not uncommon to use the so-called ''rule of mixtures'' (Eq.2) for a composite of known volume fraction, here 52% glass fiber and 48 % epoxy, so that the composite may be treated as an equivalent homogeneous material. However, for GFRP with a preferred orientation of fibers (direction y in Figure 2), it would be an oversimplification to assume homogeneous behavior of all the properties.…”

Section: Materials Propertiesmentioning

confidence: 99%

RETRACTED: A pure thermal model to evaluate heat-affected zone when milling E-glass fiber-reinforced polyester composites

Mkaddem

Zain-ul-abdein

Demirci

et al. 2016

Journal of Composite Materials

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Section: Materials Propertiesmentioning

confidence: 99%

RETRACTED: A pure thermal model to evaluate heat-affected zone when milling E-glass fiber-reinforced polyester composites

Mkaddem

Zain-ul-abdein

Demirci

et al. 2016

Journal of Composite Materials

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“…This means that fibers, when arranged parallel to the cutting direction, act as coolers and play a role in reducing heat owing to friction at interfaces. As the thermal conductivity of glass (

[ 30 , 38 ]) is known to be much lower than that of epoxy and polyester matrices (

, [ 30 , 31 , 32 , 33 , 34 ]), fibers seem to act as thermal walls to reduce heat transfer from the interface to the specimen body, which results in relatively low temperature values when cutting parallel to the fibers. In addition, it is assumed that the lateral surface of fibers generates low severe contact and favors sliding of the tool rather than adhesion or abrasion, hence reducing the local friction at tool–composite interfaces.…”

Section: Resultsmentioning

confidence: 99%

Heat Analysis of Thermal Conductive Polymer Composites: Reference Temperature History in Pure Polymer Matrices

et al. 2022

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This attempt aims at assessing heat generation in thermal conductive polymer (TCP) composites widely used in aerospace sectors. Temperature histories were investigated in both nonreinforced and glass-fiber-reinforced TCPs during abrasive milling. Glass/epoxy and glass/polyester composites with 30% unidirectional glass fiber content were prepared according to appropriate curing cycles. Type K thermocouples connected to a data acquisition system ensured the recording of temperature history along the trim plan during milling. Unexpectedly, when milling TCP composites parallel to fibers, peak temperature was found to be slightly lower than that recorded in nonreinforced polymers. The lateral surface of fibers acts to favor sliding friction, which limits heat generation at interfaces, while relatively low specific heat capacity and thermal conductivity of glass fiber disadvantage heat transfer. However, when milling perpendicular to fibers, the contact area between the tool and the transverse failure area of fibers increases drastically, hence involving severe friction at interfaces. This yields peak temperatures sensitively higher than those obtained in nonreinforced polymers. SEM inspections highlighted the failure modes dominating the material removal process in both nonreinforced and glass-fiber-reinforced polymers. The microcracks and debris observed at the trim plan explain, in part, the heat generation detected on temperature rate plots. Thus, heat conduction between phases governs sensitive surface finish integrity and tool lifetime and, hence, has great economic impact on the manufacturing steps.

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“…The advantages of the centrifugal process include lower cost, better fiber flexible, more stable to continuous production and other advantages being the predominant method for ultrafine glass wool. Although the ultrafine glass wool is a excellent thermal insulation material, the thermal conductivity of ultrafine glass wool is influenced by the density, fiber diameter, pore pressure and temperature [2][3][4][5] . The diameter of glass fiber is controlled by the manufacture process, which affects the thermal and acoustic insulation properties of the ultrafine glass wool.…”

Section: Introductionmentioning

confidence: 99%

Preparation and Properties of Ultrafine Glass Wool by Centrifugal Blowing

Qiu

Chen

Zhou

et al. 2011

AMM

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Due to extremely low thermal conductivity, high modulus, high toughness, light weight and non-combustible property, ultrafine glass wool can be widely used as glass fiber reinforcements in composites, thermal insulation materials, acoustic insulation materials, engineering materials, construction, infrastructure and environmental protection projects and so on. In particular, as a insulation material, glass wool exhibits unique advantages. The predominant process of glass wool is centrifugal blowing process. This paper describes a study of the relationship between the diameter of ultrafine glass fiber and thermal conductivity. The thermal conductivity of ultrafine glass wool decreases with the decrease of average diameter.

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G-Plus report to Owens Corning-thermal conductivity Measurements of Fiberglass

Cited by 4 publications

References 3 publications

RETRACTED: A pure thermal model to evaluate heat-affected zone when milling E-glass fiber-reinforced polyester composites

RETRACTED: A pure thermal model to evaluate heat-affected zone when milling E-glass fiber-reinforced polyester composites

Heat Analysis of Thermal Conductive Polymer Composites: Reference Temperature History in Pure Polymer Matrices

Preparation and Properties of Ultrafine Glass Wool by Centrifugal Blowing

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