| 热塑性聚氨酯防辐射复合材料的性能 |
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| 引用本文： | 董文敏,董志华,徐东太,刘力.热塑性聚氨酯防辐射复合材料的性能[J].合成橡胶工业,2009,32(4). |
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| 作者姓名： | 董文敏 董志华 徐东太 刘力 |
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| 作者单位： | 1. 北京化工大学,北京市新型高分子材料制备与加工重点实验室,北京,100029
2. 北京化工大学,北京市新型高分子材料制备与加工重点实验室,北京,100029;北京化工大学,教育部纳米材料重点实验室,北京,100029 |
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| 摘 要： | 通过机械共混法制备了La2(CO3)3,Ce2(CO3)3,Pr2(CO3)3,Nd2(CO3)3/热塑性聚氨酯(TPU)复合材料,研究了镧系碳酸盐/TPU复合材料的防辐射性能,讨论了添加La2(CO3)3/TPU回收料对其力学性能和屏蔽性能的影响.结果表明,在120 kV的入射管电压下,当镧系碳酸盐用量低于400份时,La2(CO3)3/TPU,Ce2(CO3)3/TPU,Pr2(CO3)3/TPU,Nd2(CO3)3/TPU复合材料的防辐射性能基本相当;当镧系碳酸盐用量超过400份时,Nd2(CO3)3/TPU复合材料的防辐射性能最好.在入射管电压为70～120 kV时,4种镧系碳酸盐/TPU复合材料的防辐射性能随着入射管电压的增加先增强后减弱,在85～105 kV出现峰值;除了Ce2(CO3)3/TPU复合材料以外,随着镧系元素原子序数的增加,其他复合材料的最佳防辐射峰值右移,且范围变宽.添加回收La2(CO3)3/TPU对La2(CO3)3/TPU复合材料的防辐射性能影响不大,只是其力学性能有所下降,但仍然能满足使用要求.
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| 关 键 词： | 碳酸镧 碳酸铈 碳酸镨 碳酸钕 热塑性聚氨酯 防辐射性能 |
Properties of radiation-proof thermoplastic polyurethane composites |
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| Dong Wenmin,Dong Zhihua,Xu Dongtai,Liu Li.Properties of radiation-proof thermoplastic polyurethane composites[J].China Synthetic Rubber Industry,2009,32(4). |
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| Authors: | Dong Wenmin Dong Zhihua Xu Dongtai Liu Li |
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| Affiliation: | 1.Key Laboratory of Beijing City on Preparation and Processing of Novel Polymer Materials;Beijing University of Chemical Technology;Beijing 100029;China;2.Key Laboratory for Nanomaterials of Ministry of Education;China |
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| Abstract: | La2(CO3)3,Ce2(CO3)3,Pr2(CO3)3,Nd2(CO3)3/thermoplastic polyurethane(TPU) composites were prepared by mechanical blending process,the radiation-proof properties of the lanthanide carbonate/TPU composites were investigated.The mechanical and radiation-proof properties of the composites with different contents of recycled La2(CO3)3/TPU were also researched.The results indicated that under the incident voltage 120 kV,the radiation-proof properties of the four composites were almost the same when the amount of la... |
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| Keywords: | lanthanum carbonate cerium carbonate praseodymium carbonate neodymium carbonate thermoplastic polyurethane radiation-proof property |
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