Abstract
A castable polyurethane (PUR) with soft segment made by polytetrahydrofuran polyol (or polytretramethylene ether glycol = PTMEG) derived from renewable sources was used as polymer matrix to prepare neutron shields. The PUR polymer matrix was filled with 20.4% of amorphous boron or with 20.9% by weight of hexagonal boron nitride (h-BN). The PUR composites were cast in foils 2 mm thick and tested as thermal neutron shields against reference unfilled PUR foils. The method of sandwitched copper wire activation till saturation was used for the determination of the neutron shielding effectiveness. Both the linear and massic attenuation coefficient of the two PUR composites were determined. Making 100 the linear attenuation coefficient μ of unfilled PUR, the μ value of 20.4% amorphous boron filled composite was found at 224 while that of 20.9% filled BN was found at 182. Making 100 the mass attenuation coefficient μ/ρ of the unfilled PUR the amorphous boron PUR filled composite was found at 311 while the BN filled PUR composite stopped at 178. Unfilled PUR and PUR composites were studied with FT-IR spectroscopy and DSC before and after neutron processing with a total dose of 1.5 × 1013 cm−2. No significant changes were detected neither in the FT-IR spectra nor in the DSC thermal behaviour confirming the excellent radiation resistance of PUR and its suitability as polymer matrix for neutrons and more in general radiation shielding.
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References
Martin JE (2006) Physics for radiation protection: a handbook. Wiley, New York
Stabin MG (2007) Radiation protection and dosimetry: an introduction to health physics. Springer, Berlin
Attix FH (2008) Introduction to radiological physics and radiation dosimetry. Wiley, New York
Letaw JR, Silberberg R, Tsao CH (1989) Radiation hazards on space missions outside the magnetosphere. Adv Space Res 9:285–291
Miroshnichenko L (2003) Radiation hazard in space. Springer, New York
Singleterry RC (2013) Radiation engineering analysis of shielding materials to assess their ability to protect astronauts in deep space from energetic particle radiation. Acta Astronaut 91:49–54
Campajola L, Di Capua F (2017) Applications of accelerators and radiation sources in the field of space research and industry. Top Curr Chem 374:84
Song Y, Wu W, Du S (2014) Tokamak engineering mechanics. Springer, Berlin
Wilson JW, Clowdsley MS, Shinn JL, Singleterry RC, Tripathi RK, Cucinotta FA, Heinbockel JH, Badavi FF, Atwell W (2000) Neutrons in space: shield models and design issues (No. 2000-01-2414, 2000). SAE Technical Paper
Choppin GR, Rydberg J (1980) Nuclear chemistry. Theory and applications. Pergamon Press, Oxford
Filges D, Goldenbaum F (2009) Handbook of spallation research: theory, experiments and applications. Wiley, New York
Haffner J (1967) Radiation and shielding in space. Academic Press, New York
Woods R, Pikaev A (1994) Applied radiation chemistry: radiation processing. Wiley, New York
Guetersloh S, Zeitlin C, Heilbronn L, Miller J, Komiyama T, Fukumura A, Iwata Y, Murakami T, Bhattacharya M (2006) Polyethylene as a radiation shielding standard in simulated cosmic-ray environments. Nucl Instrum Methods Phys Res Sect B Beam Interact Mater Atoms 252:319–332
Shin JW, Lee JW, Yu S, Baek BK, Hong JP, Seo Y, Koo CM (2014) Polyethylene/boron-containing composites for radiation shielding. Thermochim Acta 585:5–9
Kim J, Lee BC, Uhm YR, Miller WH (2014) Enhancement of thermal neutron attenuation of nano-B4C,-BN dispersed neutron shielding polymer nanocomposites. J Nucl Mater 453:48–53
Harrison C, Weaver S, Bertelsen C, Burgett E, Hertel N, Grulke E (2008) Polyethylene/boron nitride composites for space radiation shielding. J Appl Polym Sci 109:2529–2538
Jung J, Kim J, Uhm YR, Jeon JK, Lee S, Lee HM, Rhee CK (2010) Preparations and thermal properties of micro-and nano-BN dispersed HDPE composites. Thermochim Acta 499:8–14
Mortazavi SMJ, Kardan M, Sina S, Baharvand H, Sharafi N (2016) Design and fabrication of high density borated polyethylene nanocomposites as a neutron shield. Int J Radiat Res 14:379–383
İrim ŞG, Wis AA, Keskin MA, Baykara O, Ozkoc G, Avcı A, Dogru M, Karakoç M (2018) Physical, mechanical and neutron shielding properties of h-BN/Gd2O3/HDPE ternary nanocomposites. Radiat Phys Chem 144:434–443
Belgin EE, Aycik GA (2015) Preparation and radiation attenuation performances of metal oxide filled polyethylene based composites for ionizing electromagnetic radiation shielding applications. J Radioanal Nucl Chem 306(1):107–117
Cummings CS, Lucas EM, Marro JA, Kieu TM, DesJardins JD (2011) The effects of proton radiation on UHMWPE material properties for space flight and medical applications. Adv Space Res 48:1572–1577
Zhong WH, Sui G, Jana S, Miller J (2009) Cosmic radiation shielding tests for UHMWPE fiber/nano-epoxy composites. Compos Sci Technol 69:2093–2097
Özdemir T, Akbay IK, Uzun H, Reyhancan IA (2016) Neutron shielding of EPDM rubber with boric acid: mechanical, thermal properties and neutron absorption tests. Progr Nucl Energy 89:102–109
Huang W, Yang W, Ma Q, Wu J, Fan J, Zhang K (2016) Preparation and characterization of γ-ray radiation shielding PbWO4/EPDM composite. J Radioanal Nucl Chem 309:1097–1103
Abdel-Aziz MM, Gwaily SE, Makarious AS, Abdo AES (1995) Ethylene-propylene diene rubber/low density polyethylene/boron carbide composites as neutron shields. Polym Degrad Stab 50:235–240
Özdemir T, Güngör A, Reyhancan İA (2017) Flexible neutron shielding composite material of EPDM rubber with boron trioxide: mechanical, thermal investigations and neutron shielding tests. Radiat Phys Chem 131:7–12
Mheemeed AK, Hasan HI, Al-Jomaily FM (2012) Gamma-ray absorption using nitrile rubber—lead mixtures as radiation protection shields. J Radioanal Nucl Chem 291:653–659
Gwaily SE, Badawy MM, Hassan HH, Madani M (2002) Natural rubber composites as thermal neutron radiation shields: I. B4C/NR composites. Polym Test 21:129–133
Gwaily SE, Hassan HH, Badawy MM, Madani M (2002) Natural rubber composites as thermal neutron radiation shields: II H3BO3/NR composites. Polym Test 21:513–517
Gwaily SE, Badawy MM, Hassan HH, Madani M (2003) Influence of thermal aging on crosslinking density of boron carbide/natural rubber composites. Polym Test 22:3–7
Shaltout NA (2009) Effect of electron beam irradiation and degree of boric acid loading on the properties of styrene-butadiene rubber. React Funct Polym 69:229–233
Chai H, Tang X, Ni M, Chen F, Zhang Y, Chen D, Qiu Y (2015) Preparation and properties of flexible flame-retardant neutron shielding material based on methyl vinyl silicone rubber. J Nucl Mater 464:210–215
Sukegawa AM, Anayama Y, Okuno K, Sakurai S, Kaminaga A (2011) Flexible heat resistant neutron shielding resin. J Nucl Mater 417:850–853
Emmanuel A, Raghavan J (2015) Influence of structure on radiation shielding effectiveness of graphite fiber reinforced polyethylene composite. Adv Space Res 56:1288–1296
Cataldo F, Iglesias-Groth S (2017) Neutron damage of hexagonal boron nitride: h-BN. J Radioanal Nucl Chem 313:261–271
Cataldo F, Iglesias-Groth S, Hafez Y (2017) Neutron bombardment of boron carbide B12C3: a FT-IR, calorimetric (DSC) and ESR study. Fuller Nanotub Carbon Nanostruct 25:371–378
Pascale S, Scatena E, Fabbri F, Cataldo F (2017) Morphological and structural properties of neutron-irradiated B12C3 boron carbide microcrystals. Fuller Nanotub Carbon Nanostruct 25:585–588
Cataldo F, Iglesias-Groth S, Prata M (2017) Neutron bombardment of lithium bis (oxalato) borate: LiBOB. J Radioanal Nucl Chem 313:239–247
Cataldo F (2000) A Raman study on radiation-damaged graphite by γ-rays. Carbon 38:634–636
Cataldo F, Ursini O, Nasillo G, Caponnetti E, Carbone M, Valentini F, Palleschi G, Braun T (2013) Thermal properties, Raman spectroscopy and TEM images of neutron-bombarded graphite. Fuller Nanotub Carbon Nanostruct 21:634–643
Cataldo F (2000) On the action of γ radiation on solid C60 and C70 fullerenes: a comparison with graphite irradiation. Fuller Nanotub Carbon Nanostruct 8:577–593
Cataldo F, Baratta GA, Strazzulla G (2002) He+ ion bombardment of C60 fullerene: an FT-IR and Raman study. Fuller Nanotub Carbon Nanostruct 10:197–206
Cataldo F, Baratta GA, Ferini G, Strazzulla G (2003) He+ ion bombardment of C70 fullerene: an FT-IR and Raman study. Fuller Nanotub Carbon Nanostruct 11:191–199
Iglesias-Groth S, Cataldo F, Hafez Y (2016) Neutron bombardment of C60 and C70 fullerenes: a spectroscopic and calorimetric study. Fuller Nanotub Carbon Nanostruct 24:547–554
Cataldo F, Angelini G, Revay Z, Osawa E, Braun T (2014) Wigner energy of nanodiamond bombarded with neutrons or irradiated with γ radiation. Fuller Nanotub Carbon Nanostruct 22:861–865
Cataldo F, Iglesias-Groth S, Hafez Y, Angelini G (2014) Neutron bombardment of single wall carbon nanohorn (SWCNH): DSC determination of the stored Wigner-Szilard energy. J Radioanal Nucl Chem 299:1955–1963
Prata M, Alloni D, De Felice P, Palomba M, Pietropaolo A, Pillon M, Quintieri L, Santagata A, Valente P (2014) Italian neutron sources. Eur Phys J Plus 129:255
Protti N, Bortolussi S, Prata M, Bruschi P, Altieri S, Nigg D (2012) Neutron spectrometry for the University of Pavia TRIGA™ thermal neutron source facility. Trans Am Nucl Soc 107:1269–1272
Alloni D, di Tigliole AB, Bruni J, Cagnazzo M, Cremonesi R, Magrotti G, Oddone M, Panaza F, Prata M, Salvini A (2013) Neutron flux characterization of the SM1 sub-critical multiplying complex of the Pavia University. Progr Nucl Energy 67:98–103
Bhowmick AK, Stephens H (eds) (2001) Handbook of elastomers. CRC Press, Boca Raton, p 405
Gorna K, Gogolewski S (2003) The effect of gamma radiation on molecular stability and mechanical properties of biodegradable polyurethanes for medical applications. Polym Degrad Stab 79:465–474
Tian Q, Takács E, Krakovský I, Horváth Z, Rosta L, Almásy L (2015) Study on the microstructure of polyester polyurethane irradiated in air and water. Polymers 7:1755–1766
Walo M, Przybytniak G, Łyczko K, Piątek-Hnat M (2014) The effect of hard/soft segment composition on radiation stability of poly(ester-urethane)s. Radiat Phys Chem 94:18–21
Dannoux A, Esnouf S, Begue J, Amekraz B, Moulin C (2005) Degradation kinetics of poly (ether-urethane) Estane® induced by electron irradiation. Nucl Instrum Methods Phys Res Sect B Beam Interact Mater Atoms 236:488–494
Wei H, Xiong J, Chen X, Gao X, Xu Y, Fu Y (2007) Study on the radiation degradation of polyether-polyurethane induced by electron beam. J Radioanal Nucl Chem 274:525–530
Sui H, Liu X, Zhong F, Li X, Wang B, Ju X (2014) Relationship between free volume and mechanical properties of polyurethane irradiated by gamma rays. J Radioanal Nucl Chem 300:701–706
Kim TW, Kim SK, Park S, Park KH, Lee JM (2018) Effect of irradiation on the cryogenic mechanical characteristics of polyurethane foam. J Radioanal Nucl Chem 317:145–159
Zeitsch KJ (2000) The chemistry and technology of furfural and its many by-products (vol 13 of sugar series). Elsevier, Amsterdam
Cataldo F (1996) Iodine: a ring opening polymerization catalyst for tetrahydrofuran. Eur Polym J 32:1297–1302
Murray KA, Kennedy JE, McEvoy B, Vrain O, Ryan D, Cowman R, Higginbotham CL (2013) The influence of electron beam irradiation conducted in air on the thermal, chemical, structural and surface properties of medical grade polyurethane. Eur Polym J 49:1782–1795
Werheit H, Filipov V, Kuhlmann U, Schwarz U, Armbrüster M, Leithe-Jasper A, Tanaka T, Higashi I, Lundström T, Gurin VN, Korsukova MM (2010) Raman effect in icosahedral boron-rich solids. Sci Technol Adv Mater 11:023001
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Cataldo, F., Prata, M. New composites for neutron radiation shielding. J Radioanal Nucl Chem 320, 831–839 (2019). https://doi.org/10.1007/s10967-019-06526-5
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DOI: https://doi.org/10.1007/s10967-019-06526-5