Effects of short-glass-fiber content on material and part properties of poly(butylene terephthalate) processed by selective laser sintering

Arai, Soichi; Tsunoda, S.; Yamaguchi, Akihiro; Ougizawa, Toshiaki

doi:10.1016/j.addma.2018.04.019

Cited by 27 publications

(12 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[182a] The mechanical properties can be further enhanced by increasing the fiber loading, as seen from the increase in tensile modulus (59%) when the loading of 50 µm GFs increased from 10 to 30 wt%. [210] The addition of fibers reduces the flowability of the polymer powder, which can lower the powder processability and limit the achievable part properties. Therefore, the addition of flow agents such as silica may be required to ensure good powder flow, although in extreme cases, the poor powder CFs normally have inert surfaces that often result in poor interfacial interactions with the polymer matrix, causing fiber pull-out of printed parts and reduction in their tensile strength.…”

Section: Microfillersmentioning

confidence: 99%

“…Therefore, the addition of flow agents such as silica may be required to ensure good powder flow, although in extreme cases, the poor powder CFs normally have inert surfaces that often result in poor interfacial interactions with the polymer matrix, causing fiber pull-out of printed parts and reduction in their tensile strength. [210] Surface modification of CFs is necessary to introduce polar functional groups such as oxygen or hydroxyl groups onto them, which would improve the interfacial interactions between the CFs and polar polymers such as PA12. Yan et al treated CFs with nitric acid, and prepared CF/PA12 composite powders via the dissolution-precipitation powder preparation method.…”

Section: Microfillersmentioning

confidence: 99%

See 1 more Smart Citation

Recent Progress on Polymer Materials for Additive Manufacturing

Tan

Zhu

Zhou

2020

Adv Funct Materials

446

238

View full text Add to dashboard Cite

Additive manufacturing (AM) is the process of printing 3D objects in a layer-by-layer manner. Polymers and their composites are some of the most widely used materials in modern industries and are of great interest in the field of AM due to their vast potential for various applications, especially in the medical, aerospace, and automotive industries. Many studies have been conducted to develop new polymer materials for AM techniques, which include vat photopolymerization, material jetting, powder bed fusion, material extrusion, binder jetting, and sheet lamination. Although several reviews on the development of polymer materials for AM have been published, most of them only focus on a specific application, process, or type of material. Therefore, this article serves to provide a comprehensive review on the progress in polymer material development for AM techniques. It begins with an introduction to different AM techniques, followed by highlighting the progress of their development. Material requirements, notable advances in newly developed materials and their potential applications are discussed in detail and summarized. This review concludes by identifying the major challenges currently encountered in using AM for polymer materials and providing insights into the valuable opportunities it presents, in hopes of spurring further development in this field.

show abstract

Section: Microfillersmentioning

confidence: 99%

Section: Microfillersmentioning

confidence: 99%

Recent Progress on Polymer Materials for Additive Manufacturing

Tan

Zhu

Zhou

2020

Adv Funct Materials

446

238

View full text Add to dashboard Cite

show abstract

“…The copolymer, which contained 10 mol % isophthalic acid as a comonomer, was processed on a laser sintering machine at 190 • C. The produced parts exhibited only a slightly reduced strength compared to their injection-molded counterparts, but a drastically reduced elongation at break. In a subsequent study [14], the same authors investigated the behavior of PBT powder dry blended with short glass fibers.…”

Section: Introductionmentioning

confidence: 99%

Production and Processing of a Spherical Polybutylene Terephthalate Powder for Laser Sintering

2019

View full text Add to dashboard Cite

This work describes the production of a spherical polybutylene terephthalate (PBT) powder and its processing with selective laser sintering (SLS). The powder was produced via melt emulsification, a continuous extrusion-based process. PBT was melt blended with polyethylene glycol (PEG), creating an emulsion of spherical PBT droplets in a PEG matrix. Powder could be extracted after dissolving the PEG matrix phase in water. The extrusion settings were adjusted to optimize the size and yield of PBT particles. After classification, 79 vol. % of particles fell within a range of 10–100 µm. Owing to its spherical shape, the powder exhibited excellent flowability and packing properties. After powder production, the width of the thermal processing (sintering) window was reduced by 7.6 °C. Processing of the powder on a laser sintering machine was only possible with difficulties. The parts exhibited mechanical properties inferior to injection-molded specimens. The main reason lied in the PBT being prone to thermal degradation and hydrolysis during the powder production process. Melt emulsification in general is a process well suited to produce a large variety of SLS powders with exceptional flowability.

show abstract

“…For instance, the PP copolymer composite specimens reinforced by GFs of 150 µm length exhibited higher tensile modulus than those with 50 µm long GFs of the same diameter [28]. The mechanical properties can be further enhanced by increasing the fiber loading, as seen from the increase in tensile modulus (59%) when the loading of 50 µm GFs increased from 10 wt% to 30 wt% [137].…”

Section: In Situ Polymerizationmentioning

confidence: 99%

“…Chapter 2 Literature Review 50 CFs normally have inert surfaces that often result in poor interfacial interactions with the polymer matrix, causing fiber pull-out of printed parts and reducing their UTS[137]. Surface modification of CFs is necessary to introduce polar functional groups such as oxygen or hydroxyl groups onto them, which would improve the interfacial interactions between the CFs and polar polymers such as PA12.…”

mentioning

confidence: 99%

Development and optimization of polypropylene-based powders for selective laser sintering

Tan¹

View full text Add to dashboard Cite

This thesis contains material from 3 papers published in the following peerreviewed journals in which I am listed as an author.Chapter 2 is published as a section of L.J. Tan, W. Zhu, and K. Zhou. Recent progress on polymer materials for additive manufacturing, Advanced Functional Materials, 2020. p. 2003062. The contributions of the co-authors are as follows:• I reviewed the literature and drafted the manuscript.

show abstract

Effects of short-glass-fiber content on material and part properties of poly(butylene terephthalate) processed by selective laser sintering

Cited by 27 publications

References 34 publications

Recent Progress on Polymer Materials for Additive Manufacturing

Recent Progress on Polymer Materials for Additive Manufacturing

Production and Processing of a Spherical Polybutylene Terephthalate Powder for Laser Sintering

Development and optimization of polypropylene-based powders for selective laser sintering

Contact Info

Product

Resources

About