“Syntactic foam”的意思、由来-开放百科全书

The term was originally coined by the Bakelite Company, in 1955, for their lightweight composites made of hollow phenolic microspheres bonded to a matrix of phenolic, epoxy, or polyester.^[7]

Tailorability is one of the biggest advantages of these materials.^[8] The matrix material can be selected from almost any metal, polymer, or ceramic. Microballoons are available in a variety of sizes and materials, including glass microspheres, cenospheres, carbon, and polymers. The most widely used and studied foams are glass microspheres (in epoxy or polymers), and cenospheres or ceramics^[9] (in aluminium). One can change the volume fraction of microballoons or use microballoons of different effective density, the latter depending on the average ratio between the inner and outer radii of the microballoons.

The compressive properties of syntactic foams, in most cases, strongly depend on the properties of microballoons. In general, the compressive strength of the material is proportional to its density.

The matrix material has more influence on the tensile properties. Tensile strength may be highly improved by a chemical surface treatment of the particles, such as silanization, which allows the formation of strong bonds between glass particles and epoxy matrix. Addition of fibrous materials can also increase the tensile strength.{{Citation needed|date=August 2012}}

Applications

These materials were developed in early 1960s as improved buoyancy materials for marine applications.^[11] Other characteristics led these materials to aerospace and ground transportation vehicle applications.^[12] Current applications for syntactic foam include buoyancy modules for marine riser tensioners, remotely operated underwater vehicles (ROVs), autonomous underwater vehicles (AUVs), deep-sea exploration, boat hulls, and helicopter and airplane components. Structural applications of syntactic foams include use as the intermediate layer (that is, the core) of sandwich panels.

See also

References

1. ^{{cite journal|last=Shutov|first=F.A.|title=Syntactic polymer foams|journal=Advances in Polymer Science|year=1986|volume=73-74|pages=63–123|doi=10.1007/3-540-15786-7_7}}
2. ^H. S. Kim and Pakorn Plubrai, “Manufacturing and failure mechanisms of syntactic foam under compression”, Composites Part A : Applied Science and Manufacturing, Vol 35, pp.1009-1015, 2004.
3. ^Dipendra Shastri and H. S. Kim, “A new consolidation process for expanded perlite particles”, Construction and Building Materials, Vol 60, June, 2014, pp.1-7.
4. ^{{Cite web|url=http://www.crgrp.com/technology/portfolio/syntactics.html|title=What is Syntactic Foam?|accessdate=2009-08-07|publisher=Cornerstone Research Group|deadurl=yes|archiveurl=https://web.archive.org/web/20120720033636/http://www.crgrp.com/technology/portfolio/syntactics.html|archivedate=20 July 2012|df=dmy-all}}
5. ^Md Mainul Islam and H. S. Kim, “Manufacture of syntactic foams: pre-mold processing”, Materials and Manufacturing processes, Vol 22, pp.28-36, 2007.
6. ^Md Mainul Islam and H. S. Kim, “Manufacture of syntactic foams using starch as binder: post-mold processing”, Materials and Manufacturing processes, Vol 23, pp.884-892, 2008.
7. ^From the Oxford English Dictionary citation of Sci. News Let. 2 Apr. 213/3
8. ^{{cite journal|last=Bardella|first=L.|author2=Genna F. |title=On the elastic behavior of syntactic foams|journal=International Journal of Solids and Structures|year=2001|volume=38|issue=2|pages=7235–7260|doi=10.1016/S0020-7683(00)00228-6}}
9. ^{{cite journal|last=Shubmugasamy|first=V.|title=Compressive Characterization of Single Porous SiC Hollow Particles|journal=JOM|year=2014|volume=66|issue=6|pages=892–897|doi=10.1007/s11837-014-0954-7}}
10. ^{{cite web|last=Allum|first=Ron|url=http://ronallum.com/products/isofloat/tailor-made}}
11. ^{{Cite journal|url=http://www.nistep.go.jp/achiev/ftx/eng/stfc/stt026e/qr26pdf/STTqr2607.pdf |title=Overseas Trends in the Development of Human Occupied Deep Submersibles and a Proposal for Japan’s Way to Take |accessdate=2009-08-10 |journal=Science and Technology Trends Quarterly Review |volume=26 |date=January 2008 |first=Kimiaki |last=Kudo |format=PDF |pages=104–123 |deadurl=yes |archiveurl=https://web.archive.org/web/20110721125903/http://www.nistep.go.jp/achiev/ftx/eng/stfc/stt026e/qr26pdf/STTqr2607.pdf |archivedate=2011-07-21 |df= }}
12. ^{{deadlink|date=July 2015}}{{Cite web|url=http://www.sampe.org/store/paper.aspx?pid=943 |title=Novel Processing of High-Performance Structural Syntactic Foams |accessdate=2009-08-07 |publisher=Society for the Advancement of Material and Process Engineering |year=2002 |first=G |last=Karst |deadurl=yes |archiveurl=https://web.archive.org/web/20110723181158/http://www.sampe.org/store/paper.aspx?pid=943 |archivedate=2011-07-23 |df= }}
13. ^{{Cite web|url=https://engineering.nyu.edu/news/3-d-printing-breakthrough-lightweight-syntactic-foams-could-help-submarines-dive-deeper|title=3-D Printing Breakthrough for Lightweight Syntactic Foams Could Help Submarines Dive Deeper {{!}} NYU Tandon School of Engineering|website=engineering.nyu.edu|language=en|access-date=2018-09-22}}
14. ^Md Mainul Islam and H. S. Kim, “Sandwich composites made of syntactic foam core and paper skin: manufacturing and mechanical behavior”, Journal of Sandwich Structures and Materials, 2012, Vol 14(1), pp.111-127.
15. ^Md Arifuzzaman and H. S. Kim, Novel flexural behaviour of sandwich structures made of perlite foam/sodium silicate core and paper skin, Construction and Building Materials, Construction and Building Materials, Vol 148 2017, pp 321–333.
16. ^{{deadlink|date=July 2015}}{{Cite web|url=http://www.cefic.be/templates/shwNewsFull.asp?NSID=543&HID=2&P=7|title=Performing Plastics - How plastics set out to conquer the world of sports|accessdate=2009-08-10|publisher=European Chemical Industry Council|date=3 February 2005|first=Johann|last=Thim}}{{Dead link|date=June 2018 |bot=InternetArchiveBot |fix-attempted=no }}